As filed with the Securities and Exchange Commission on March 25, 2021

Securities Act File No. 333-251817

Investment Company Act File No. 811-23627

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-2

(Check appropriate box or boxes)

Nuveen Core Plus Impact Fund

Exact Name of Registrant as Specified in Declaration of Trust

333 West Wacker Drive, Chicago, Illinois 60606

Address of Principal Executive Offices (Number, Street, City, State, Zip Code)

(800) 257-8787

Registrant’s Telephone Number, including Area Code

Mark L. Winget

Vice President and Secretary

333 West Wacker Drive

Chicago, Illinois 60606

Name and Address (Number, Street, City, State, Zip Code) of Agent for Service.

Approximate Date of Proposed Public Offering:

As soon as practicable after the effective date of this Registration Statement.

If any of the securities being registered on this form are offered on a delayed or continuous basis in reliance on Rule 415 under the Securities Act of 1933, other than securities offered in connection with a dividend reinvestment plan, check the following box. ☐

It is proposed that this filing will become effective (check appropriate box)

☐ when declared effective pursuant to section 8(c)

☒ Registered Closed-End Fund (closed-end company that is registered under the Investment Company Act of 1940 (“Investment Company Act”)).

☒ New Registrant (registered or regulated under the Investment Company Act for less than 12 calendar months preceding this filing).

The registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that the Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and we are not soliciting offers to buy these securities in any jurisdiction where the offer or sale is not permitted.

                Shares

Nuveen Core Plus Impact Fund

Common Shares

$20.00 per Share

The Fund.    Nuveen Core Plus Impact Fund (the “Fund”) is a newly organized, diversified, closed-end management investment company. The Fund’s investment objective is to seek total return through high current income and capital appreciation, while giving special consideration to certain impact and environmental, social and governance (“ESG”) criteria. There can be no assurance that the Fund will achieve its investment objective or that the Fund’s investment strategies will be successful.

Fund Strategies.    The Fund seeks to achieve its investment objective by investing in fixed-income investments of any type, including asset-backed securities, corporate bonds, preferred securities, residential and commercial mortgage-backed securities, taxable and tax-exempt municipal bonds, senior loans and loan participations and assignments, sovereign debt instruments, debt securities issued by supranational agencies, and U.S. government securities (securities issued or guaranteed by the U.S. government or its agencies or instrumentalities). The Fund’s investment in fixed-income investments of any type is subject to Nuveen’s proprietary public market impact framework criteria (the “Impact Criteria”) or Nuveen’s ESG criteria. The Impact Criteria are designed to identify investments that will generate positive, measurable social and environmental impact alongside a competitive financial return. These investments provide direct access to issuers and/or individual projects across four social and environmental themes: Affordable Housing, Community and Economic Development, Renewable Energy and Climate Change, and Natural Resources. The portion of the Fund invested in accordance with the Impact Criteria is not required to meet ESG criteria provided by a third party.

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No Prior History.    Because the Fund is newly organized, its common shares of beneficial interest (“Common Shares”) have no history of public trading. Shares of closed-end investment companies frequently trade at a discount from their net asset value (“NAV”). This risk of loss due to the discount may be greater for investors who expect to sell their shares in a relatively short period after completion of the public offering. It is anticipated that the Fund’s Common Shares will be approved for listing on the New York Stock Exchange, subject to notice of issuance. The trading or “ticker” symbol is “NPCT.”

This prospectus sets forth concisely information about the Fund that a prospective investor should know before investing, and should be retained for future reference. Investing in the Fund’s Common Shares involves certain risks, including the risks associated with the Fund’s use of leverage. The Fund’s anticipated exposure to below investment grade securities (high yield or junk bonds) involves special risks, including an increased risk with respect to the issuer’s capacity to pay interest, dividends and repay principal. You could lose some or all of your investment. See “Risks” beginning on page 67 of this prospectus. Certain of these risks are summarized in “Prospectus Summary—Special Risk Considerations” beginning on page 16 of this prospectus.

Neither the Securities and Exchange Commission (“SEC”) nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

The underwriters expect to deliver the Common Shares to purchasers on or about                     , 2021.

The date of this prospectus is                     , 2021.

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Nuveen’s ESG criteria are generally implemented based on data provided by independent research vendor(s). The ESG evaluation process employed by the Fund favors issuers with leadership in ESG performance relative to their peers alongside a competitive financial return. Typically, environmental assessment categories include climate change, natural resource use, waste management and environmental opportunities. Social evaluation categories include human capital, product safety and social opportunities. Governance assessment categories include corporate governance, business ethics and government and public policy. How well companies adhere to international norms and principles and involvement in major ESG controversies (examples of which may relate to the environment, customers, human rights and community, labor rights and supply chain, and governance) are other considerations. The Fund’s portfolio will be actively managed and will seek to deliver a direct and measurable positive social and environmental impact as well as ESG leadership.

Investment Policies.    Under normal market conditions, the Fund will invest at least 80% of its net assets plus the amount of any borrowings for investment purposes in fixed-income investments of any type, which are subject to the Impact Criteria or Nuveen’s ESG criteria. The Fund may invest up to 50% of its Managed Assets (as defined on page 8) in below investment grade investments (such investments are commonly referred to as “high-yield” or “junk” and are rated BB+/Ba1 or lower at the time of investment or are unrated but judged by the Fund’s subadviser to be of comparable quality) with no more than 10% of its Managed Assets in investments rated CCC/Caa or lower, including defaulted investments, at the time of investment. Below investment grade investments are regarded as having predominately speculative characteristics with respect to the issuer’s capacity to pay interest or dividends and repay principal, which implies higher price volatility and default risk than investment grade instruments of comparable terms and duration. The Fund may invest without limitation in investments of foreign issuers, with no more than 30% of its Managed Assets in investments of foreign issuers that are located in emerging market countries.

The Fund may seek to provide exposure to certain Regulation S securities by investing in Core Plus Impact Fund, Ltd. (the “Subsidiary”), a wholly owned subsidiary of the Fund, which will invest primarily in Regulation S securities. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the SEC pursuant to Regulation S of the Securities Act of 1933, as amended. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale. The Subsidiary is advised by the Fund’s sub-adviser, Nuveen Asset Management, LLC, and has the same investment objective as the Fund. The Subsidiary may also hold cash and invest in other instruments, including fixed-income investments, that are not Regulation S securities, either as investments or to serve as margin or collateral for the Subsidiary’s Regulation S positions.

Leverage.    The Fund anticipates using leverage in order to pursue its investment objective. The Fund may use leverage to the extent permitted by the Investment Company Act of 1940, as amended. The Fund may source leverage initially and throughout the life of the Fund through a number of methods including through borrowings, issuing preferred shares of beneficial interest, the issuance of debt securities, entering into reverse repurchase agreements (effectively a borrowing), and investing in residual interest certificates of tender option bond trusts, also called inverse floating rate securities, that have the economic effect of leverage because the Fund’s investment exposure to the underlying bonds held by the trust have been effectively financed by the trust’s issuance of floating rate certificates. The sources of leverage will vary depending on market conditions. The Fund anticipates using such leverage in an aggregate amount equal to approximately 35% of the Fund’s Managed Assets, if current market conditions persist. The Fund may employ leverage through the issuance of preferred shares of beneficial interest within 12 months after the completion of this offering, but may do so only if the Board of Trustees of the Fund (the “Board of Trustees”) determines it to be in the best interests of Common Shareholders. In pursuit of its investment objective, the Fund has the ability to reduce or increase the amount and type of leverage based upon changes in market conditions, composition of the Fund’s holdings and remaining time until the Fund’s termination date. The Fund’s leverage ratio will vary from time to time based upon such changes in the amount of leverage used and variations in the value of the Fund’s holdings. In addition, the Fund may use derivatives that have the economic effect of leverage. The use of leverage creates special risks for common shareholders. See “Leverage,” “Risks—Fund Level Risks—Leverage Risk,” “Portfolio Composition and Other Information—Municipal Bonds—Inverse Floating Rate Securities” and “Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk.” There is no assurance that the Fund will use leverage or that the Fund’s use of leverage will work as planned or achieve its goals.

Limited Term.    The Fund’s Declaration of Trust provides that the Fund terminates on the first business day of the month that follows the twelfth anniversary of the effective date of the Fund’s initial registration statement, which is currently anticipated to be May 2, 2033 (the “Stated Termination Date”); however, the Board of Trustees may vote to extend the term of the Fund for up to two one year periods (in the event of any such extension, the termination date shall be referred to as the “Extended Termination Date” and the later of the Stated Termination Date and the Extended Termination Date is referred to as the “Termination Date”); furthermore, the Board of Trustees may determine to cause the Fund to conduct a tender offer to all holders of outstanding Common Shares as of a date within the 18 months preceding the Termination Date (an “Eligible Tender Offer”). At the time of the

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Eligible Tender Offer, the Board of Trustees will determine the minimum net assets the Fund must retain following the Eligible Tender Offer to ensure the Fund’s continued viability (the “Termination Threshold”). If the repurchase of all Common Shares properly tendered in an Eligible Tender Offer would result in the Fund’s net assets totaling greater than the Termination Threshold, the Fund will purchase all Common Shares properly tendered and not withdrawn pursuant to the terms of the Eligible Tender Offer. If an Eligible Tender Offer is completed, the Board of Trustees may, in its sole discretion and without any action by the shareholders of the Fund, provide that the Fund may continue without limitation of time, subject to the terms and conditions described herein. If the repurchase of all Common Shares properly tendered in an Eligible Tender Offer would result in the Fund’s net assets totaling less than the Termination Threshold, an Eligible Tender Offer will not be completed, the Fund will, no later than the Termination Date, cease investment operations, retire or redeem its leverage facilities, liquidate its investment portfolio (to the extent possible) and, on or after the Termination Date, the Fund will distribute all of its liquidated net assets to common shareholders of record in one or more distributions. The Fund’s investment objective is not designed to return to common shareholders their original NAV or purchase price. See “Prospectus Summary—Limited Term; Eligible Tender Offer” and “Risks—Fund Level Risks—Limited Term and Tender Offer Risks.”

Fund Distributions.    The Fund will implement a managed distribution policy by declaring monthly distributions stated in terms of a fixed cents per Common Share. The Fund’s distributions will be composed of net investment income and a supplemental amount generally representing the potential for capital appreciation, which will take the form of realized capital gains and/or a return of capital. The return of capital component of a Fund distribution may (but will not necessarily) represent unrealized capital gains. A return of capital is a non-taxable distribution of a portion of the Fund’s capital. When the Fund returns (including unrealized capital appreciation) exceed distributions, return of capital may represent portfolio gains earned, but not realized as a taxable capital gain. In periods when the Fund returns fall short of distributions, a return of capital will represent a portion of a shareholder’s original principal. Such shortfall may be offset during other time periods over the life of their investment (previous or subsequent) when the Fund’s total return exceeds distributions. A return of capital reduces a shareholder’s tax cost basis (but not below zero) in Fund shares, which could result in more taxable gain or taxable loss when the shareholder sells their shares. Monthly distributions that include such supplemental amounts representing the potential for capital appreciation are sometimes referred to as “managed distributions.” The Fund’s managed distribution policy is being implemented pursuant to an exemptive order issued by the SEC, which permits the Fund to distribute long-term capital gains to shareholders more frequently than once per year. The Fund will seek to establish a distribution rate that roughly corresponds to Nuveen Fund Advisors’ projections of the total return that could reasonably be expected to be generated by the Fund over an extended period of time, although the distribution rate will not be directly dependent on the amount of income earned or capital gains realized by the Fund. Nuveen Fund Advisors, in making such projections, may consider long-term historical returns of the types of securities in the portfolio, current and expected portfolio composition, current market sentiment, and a variety of other factors. As portfolio and market conditions change, the portion of the Fund’s distributions composed of net investment income, realized capital gain and return of capital will vary. The Fund may also change the rate of distributions on the Common Shares and the Fund’s distribution policy in response to changes in portfolio and market conditions. Shareholders should not assume that the source of a distribution from the Trust is net income or profit.

To the extent that the total return of the Fund’s overall strategy exceeds the distribution rate for an extended period, the Fund may be in a position either to increase the distribution rate or to distribute supplemental amounts to shareholders, or both. Conversely, if the total return of the Fund’s overall strategy is less than the distribution rate for an extended period of time, the Fund will effectively be drawing upon its assets to meet payments prescribed by its distribution policy. The Fund may make additional distributions, or include within the Fund’s final distribution for each calendar year, amounts representing any remaining net investment income and net realized capital gains not distributed during the year. See “Distributions” for additional information.

You should read this prospectus, which contains important information about the Fund, before deciding whether to invest, and retain it for future reference. A Statement of Additional Information, dated                , 2021, as amended or supplemented through the effective date of this prospectus, containing additional information about the Fund, has been filed with the SEC and is incorporated by reference in its entirety into this prospectus. You may request a free copy of the Statement of Additional Information, annual and semi-annual reports to shareholders, when available, and other information about the Fund, and make shareholder inquiries by calling (800) 257-8787 or by writing to the Fund, or from the Fund’s website (www.nuveen.com). The information contained in, or that can be accessed through, the Fund’s website is not part of this prospectus. You also may obtain a copy of the Statement of Additional Information (and other information regarding the Fund) from the SEC’s website (www.sec.gov).

The Fund’s Common Shares do not represent a deposit or obligation of, and are not guaranteed or endorsed by, any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.

You should rely only on the information contained or incorporated by reference in this prospectus. The Fund has not, and the underwriters have not, authorized anyone to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. The Fund is not, and the underwriters are not, making an offer of these securities in any jurisdiction where the offer is not permitted. You should not assume that the information contained in this prospectus is accurate as of any date other than the date on the front of this prospectus. The Fund’s business, financial condition and prospects may have changed since that date.

Until                     , 2021 (25 days after the date of this prospectus), all dealers that buy, sell or trade the Common Shares, whether or not participating in this offering, may be required to deliver a prospectus. This delivery requirement is in addition to the dealers’ obligation to deliver a prospectus when acting as underwriters and with respect to their unsold allotments or subscriptions.

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Summary of Fund expenses

The purpose of the table and example below is to help you understand all fees and expenses that you, as a Common Shareholder, would bear directly or indirectly. The expenses shown in the table are based on estimated amounts for the Fund’s first full year of operations and assume that the Fund issues 10,000,000 Common Shares in this offering. The Annual Expenses table below assumes the use of leverage in an aggregate amount equal to 35% of the Fund’s Managed Assets (after their use), and shows Fund expenses as a percentage of net assets attributable to Common Shares. The Fund’s actual expenses may vary from the estimated expenses shown in the table and, all other things being equal, will increase as a percentage of net assets attributable to Common Shares if the Fund issues less than 10,000,000 Common Shares. See “Management of the Fund.”

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Summary of fund expenses

EXAMPLE

The following example illustrates the expenses that you would pay on a $1,000 investment in Common Shares, assuming (1) total annual expenses of 2.16% of net assets attributable to Common Shares and (2) a 5% annual return. The example assumes that the estimated Total Annual Expenses set forth in the Annual Expenses table are accurate and that all dividends and distributions are reinvested at Common Share NAV. Moreover, the Fund’s actual rate of return may be greater or less than the hypothetical 5% return shown in the example.

The example should not be considered a representation of future expenses. Actual expenses may be higher or lower.

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The Fund

The Fund is a newly organized, diversified, closed-end management investment company registered under the Investment Company Act of 1940, as amended (the “1940 Act”). The Fund was organized as a Massachusetts business trust on December 4, 2020, pursuant to the Fund’s Declaration of Trust (as amended as described below, the “Declaration of Trust”). On December 21, 2020, the Fund filed an amendment to the Declaration of Trust to change the name of the Fund. As a newly organized entity, the Fund has no operating history. The Fund’s principal office is located at 333 West Wacker Drive, Chicago, Illinois 60606, and its telephone number is (800) 257-8787.

Use of proceeds

The net proceeds of this offering of Common Shares will be approximately $                     ($                     if the Underwriters exercise the over-allotment option in full). Nuveen Fund Advisors has agreed to (i) reimburse all organizational expenses of the Fund and (ii) pay the Fund’s offering costs. The Fund will invest the net proceeds of this offering in accordance with the Fund’s investment objective and policies (as stated below) as soon as practicable after the completion of this offering. The Fund currently anticipates that it will be able to invest substantially all of the net proceeds in investments that meet the Fund’s investment objective and policies within three months after completion of this offering; however, under certain circumstances, including but not limited to, adverse market conditions, lack of supply and lack of ability to secure the most attractive investment opportunities for investors, the Fund may take up to six months after completion of this offering to invest substantially all of the net proceeds in investments that meet the Fund’s investment objective and policies. During the period in which the net proceeds of this offering are first being invested (the “invest-up period”), the Fund may invest up to 100% of its Managed Assets in short-term investments, including high quality, short-term securities, or may invest in short-, intermediate-, or long-term U.S. Treasury securities. During the invest-up period, the Fund may also purchase securities issued by exchange-traded funds (“ETFs”) that invest primarily in investments of the types in which the Fund may invest directly. Any such investments in ETFs will be in compliance with the limitations imposed by the 1940 Act, the rules promulgated thereunder, or pursuant to any exemptive relief obtained thereunder.

The Fund’s investments

INVESTMENT OBJECTIVE

The Fund’s investment objective is to seek total return through high current income and capital appreciation, while giving special consideration to certain impact and environmental, social and governance (“ESG”) criteria. There can be no assurance that the Fund will achieve its investment objective or that the Fund’s investment strategies will be successful. The Fund’s investment objective may be changed by the Board of Trustees of the Fund (the “Board of Trustees”) without shareholder approval.

FUND STRATEGIES

The Fund’s portfolio will be actively managed and will seek to deliver a direct and measurable positive social and environmental impact as well as ESG leadership. In selecting fixed-income investments, Nuveen Asset Management performs its own credit analysis, paying particular attention to economic trends and other market events. Subject to Nuveen’s proprietary public market impact framework criteria (the “Impact Criteria”) and Nuveen’s ESG criteria described below, individual securities will be selected to construct a portfolio consistent with the Fund’s investment objective of total return through high current income and capital appreciation.

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The Fund’s investments

In addition, the Fund’s investment in fixed-income investments of any type is subject to the Impact Criteria or Nuveen’s ESG criteria.

Impact Criteria

The fixed-income investments invested according to the Impact Criteria provide direct exposure to issuers and/or individual projects with social or environmental benefits. The portion of the Fund invested in accordance with the Impact Criteria is not required to meet ESG criteria provided by a third party.

The Impact Criteria are designed to identify investments that will generate positive, measurable social and environmental impact alongside a competitive financial return. These investments are intended to provide access to the following four social and environmental themes:

ESG criteria and evaluation process

Nuveen’s ESG criteria are generally implemented based on data provided by independent research vendor(s). The Fund relies upon ESG ratings, controversy scores and controversial business indicators from such vendor(s), and applies internal, proprietary thresholds to those data points to create the pool of eligible portfolio investments. The Fund has the right to change such vendor(s) and to change the number of vendors providing ESG data at any time. In addition, the Fund considers Nuveen’s internal, proprietary ESG ratings as an additional factor in security selection. In those limited cases where independent ESG criteria are not available for certain types of investments or for certain issuers, these investments may nonetheless be eligible for investment by the Fund should they meet certain internal ESG criteria. Substantially all issuers, other than those in which the Fund invests in accordance with the Impact Criteria described above, must meet or exceed minimum ESG performance standards to be eligible for investment by the Fund.

The corporate issuer evaluation process favors companies with leadership in ESG performance relative to their peers. Typically, environmental assessment categories include climate change, natural resource use, waste management and environmental opportunities. Social evaluation categories include human capital, product safety and social opportunities. Governance assessment categories include corporate governance, business ethics and government and public policy. How well companies adhere to international norms and principles and involvement in major ESG controversies (examples of which may relate to the environment, customers, human rights and community, labor rights and supply chain, and governance) are other considerations.

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The Fund’s investments

The ESG evaluation process with respect to corporate issuers is conducted on an industry-specific basis and involves the identification of key performance indicators, which are given more or less relative weight compared to the broader range of potential assessment categories. When ESG concerns exist, the evaluation process gives careful consideration to how companies address the risks and opportunities they face in the context of their sector or industry and relative to their peers. The Fund will not generally invest in companies significantly involved in certain business activities including, but not limited to, the production of alcohol, tobacco, military weapons, firearms, nuclear power, thermal coal, and gambling products and services.

The ESG evaluation process with respect to government issuers favors issuers with leadership in ESG performance relative to all peers alongside a competitive financial return. Typically, environmental assessment categories include the issuer’s ability to protect, harness, and supplement its natural resources, and to manage environmental vulnerabilities and externalities. Social assessment categories include the issuer’s ability to develop a healthy, productive, and stable workforce and knowledge capital, and to create a supportive economic environment. Governance assessment categories include the issuer’s institutional capacity to support long-term stability and well-functioning financial, judicial, and political systems, and capacity to address environmental and social risks. The government ESG evaluation process is conducted on a global basis and reflects how an issuer’s exposure to and management of ESG risk factors may affect the long-term sustainability of its economy.

Other considerations and investments

While the Fund will invest in issuers that meet the Impact Criteria or Nuveen’s ESG criteria, it is not required to invest in every issuer that meets these criteria. In addition, if an issuer meets certain ESG criteria but does not satisfy all ESG assessment categories it may not automatically be eliminated as an eligible investment. The Impact Criteria, the ESG criteria and the resulting universe of eligible investments may be changed without the approval of the Fund’s shareholders.

Nuveen Asset Management seeks to ensure that the Fund’s investments are consistent with its Impact Criteria and/or ESG criteria, but it cannot guarantee that this will always be the case for every Fund investment. Consistent with its responsibilities, Nuveen Asset Management has the right to change the ESG vendor(s) at any time and to add to the number of vendors providing the universe of eligible companies. Investing on the basis of Impact Criteria or ESG criteria is qualitative and subjective by nature, and there can be no assurance that the Impact Criteria utilized by Nuveen, the ESG criteria utilized by the Fund’s ESG vendor(s), or any judgment exercised by Nuveen Asset Management will reflect the beliefs or values of any particular investor.

The Fund’s investments will include investment grade and below investment grade investments. Below investment grade investments (such investments are commonly referred to as “high yield” or “junk”) generally provide high income in an effort to compensate investors for their higher risk of default, which is the failure to make required interest or principal payments.

The Fund may also invest in certain asset-backed securities, mortgage-backed securities and other securities that represent interests in assets such as pools of mortgage loans, automobile loans or credit card receivables. These securities are typically issued by legal entities established specifically to hold assets and to issue debt obligations backed by those assets. Asset-backed or mortgage-backed securities are normally created or “sponsored” by banks or other institutions or by certain government-sponsored enterprises such as the Federal National Mortgage Association (“Fannie Mae” or “FNMA”) or Federal Home Loan Mortgage Corporation (“Freddie Mac” or “FHLMC”). The Fund does not take into

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The Fund’s investments

consideration whether the sponsor of an asset-backed security in which it invests meets the Impact Criteria or the ESG criteria. That is because asset-backed securities represent interests in pools of loans, and not of the ongoing business enterprise of the sponsor. It is therefore possible that the Fund could invest in an asset-backed or mortgage-backed security sponsored by a bank or other financial institution in which the Fund could not invest directly. However, the investments underlying an asset-backed or mortgage-backed security will generally meet or exceed the Impact Criteria or Nuveen’s ESG criteria.

The Impact Criteria or Nuveen’s ESG criteria will apply to the Fund’s investment exposure through derivatives and other instruments that have economic characteristics similar to the Fund’s fixed-income investments. However, neither the Impact Criteria nor Nuveen’s ESG criteria will apply to the Fund’s investments in derivatives used for hedging purposes.

The Fund is not restricted from investing in any investments issued or guaranteed by the U.S. government or its agencies or instrumentalities. The Fund considers investments in these investments to be consistent with its investment and social objectives.

There can be no assurance that the Fund’s strategies will be successful.

PORTFOLIO CONTENTS

The Fund generally invests in a portfolio of fixed-income investments of any type, including asset-backed securities, corporate bonds, preferred securities, residential and commercial mortgage-backed securities, taxable and tax-exempt municipal bonds, senior loans and loan participations and assignments, sovereign debt instruments, debt securities issued by supranational agencies, and U.S. government securities (securities issued or guaranteed by the U.S. government or its agencies or instrumentalities).

The Fund’s portfolio may contain restricted and illiquid investments (i.e., investments that are not readily marketable), including, but not limited to, restricted investments (investments the disposition of which is restricted under the federal securities laws), investments that may be resold only pursuant to Rule 144A under the Securities Act of 1933, as amended (“1933 Act”) that are deemed to be illiquid, and certain repurchase agreements. Restricted investments may be sold only in privately negotiated transactions or in a public offering with respect to which a registration statement is in effect under the 1933 Act.

The Fund may also invest directly in Regulation S securities that are freely tradable in the U.S. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the Securities and Exchange Commission (“SEC”) pursuant to Regulation S of the 1933 Act. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale.

The Fund may invest in securities of other open-end or closed-end investment companies, including ETFs, that invest primarily in the types of investments in which the Fund may invest directly.

The Fund may invest without limitation in credit default swaps, and may enter into credit default swaps as either a buyer or a seller. The credit default swaps in which the Fund may invest include credit default swap indices (“CDX”) and those in which the underlying reference instrument is the debt obligation of a single reference issuer (“single-name CDS”). A CDX is a portfolio of credit default swaps with similar characteristics, such as credit default swaps on high-yield bonds. Certain CDX instruments are subject to mandatory central clearing and exchange trading, which may reduce counterparty credit risk and increase liquidity compared to other credit default swaps or CDX transactions. Unlike other types of credit default swaps, single-name CDS do not have the benefit of diversification across many issuers.

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The Fund’s investments

In addition to credit default swaps, the Fund also may invest in certain derivative instruments in pursuit of its investment objective. Such instruments include financial futures contracts and options thereon, forward contracts, swaps (with varying terms, including interest rate swaps), options on swaps and other fixed-income derivative instruments. Nuveen Asset Management may use derivative instruments to attempt to hedge some of the risk of the Fund’s investments, to limit exposure to losses due to changes to foreign currency exchange rates or as a substitute for a position in the underlying asset. See “Portfolio Composition and Other Information—Derivatives.”

The Fund may also invest in other types of investments and debt instruments described in this prospectus and the SAI. See “Portfolio Composition and Other Information” for additional information on the types of investments in which the Fund may invest.

INVESTMENT POLICIES

Under normal circumstances:

The foregoing policies apply only at the time of any new investment. The Fund’s policy to invest at least 80% of its net assets plus the amount of any borrowings for investment purposes in fixed-income investments of any type, which are subject to the Impact Criteria or Nuveen’s ESG criteria, may not be changed without 60 days’ prior written notice to shareholders.

“Managed Assets” means the total assets of the Fund, minus the sum of its accrued liabilities (other than Fund liabilities incurred for the express purpose of creating leverage). Total assets for this purpose shall include assets attributable to the Fund’s use of leverage (whether or not those assets are reflected in the Fund’s financial statements for purposes of generally accepted accounting principles), and derivatives will be valued at their market value.

The portion of the Fund’s assets invested in below investment grade investments (such investments are commonly referred to as “high yield” or “junk”) may vary over time. Below investment grade investments are regarded as having predominately speculative characteristics with respect to the issuer’s capacity to pay interest or dividends, and repay principal, which implies higher price volatility and default risk than investment grade instruments of comparable terms and duration. These investments

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The Fund’s investments

generally provide higher income than investment grade securities in an effort to compensate investors for their higher risk of default, which is the issuer’s failure to make required interest, dividend or principal payments on the investments. For purposes of the investment limitations in this prospectus, an investment’s rating is determined using the middle rating of Moody’s Investor Services, Inc. (“Moody’s”), Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC business (“Standard & Poor’s” or “S&P”) and Fitch Ratings, a part of the Fitch Group (“Fitch”), if all three nationally recognized statistical rating organizations (“NRSROs”) rate the investment. If ratings are provided by only two of those NRSROs, the lower rating is used to determine the rating. If only one of those NRSROs provides a rating, that rating is used. If an investment is not rated by any NRSRO, the rating determined by Nuveen Asset Management is used. Investment rating limitations are considered to apply only at the time of investment and will not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of an acquisition of investments.

Nuveen Asset Management may determine that it is in the best interest of shareholders to pursue a workout arrangement (i.e., a privately negotiated, mutual agreement between the Fund and the issuer or another party) with respect to investments that are in default or involved in bankruptcy or insolvency proceedings, which may involve making loans to the issuer or another party, or purchasing an equity or other interest from the issuer or another party, or other related or similar steps involving the investment of additional monies.

For purposes of the limitations on emerging market debt investments, the Fund will classify an issuer based on the issuer’s country of origin, generally as determined by an unaffiliated, recognized financial data provider. An issuer’s country of origin is based on a number of criteria, such as the issuer’s country of domicile or country in which the issuer conducts its primary operations, the primary exchange on which its investments trade, the location from which the majority of the issuer’s revenue comes, and the issuer’s reporting currency. The term “emerging market” describes any country or market that is generally considered to be emerging or developing by major organizations in the international financial community, such as the International Finance Corporation, or by financial industry analysts like MSCI, Inc., which compiles the MSCI Emerging Markets Index, and J.P. Morgan Chase & Co., which compiles several fixed-income emerging markets benchmarks; or other countries or markets with similar emerging characteristics. Emerging markets can include every nation in the world except the United States, Canada, Japan, Australia, New Zealand and most nations located in Western Europe. Notwithstanding the foregoing, the fixed-income portfolio management team generally views Israel as an emerging market.

The Fund may seek to provide exposure to Regulation S securities that are not freely tradable in the U.S. by investing in Core Plus Impact Fund, Ltd. (the “Subsidiary”), a wholly owned subsidiary of the Fund, which will invest primarily in Regulation S securities. The Subsidiary is advised by Nuveen Asset Management, which complies with the provisions of Section 15 of the 1940 Act relating to investment advisory contracts as an investment adviser to the Fund under Section 2(a)(20) of the 1940 Act. The Subsidiary has the same investment objective as the Fund. The Subsidiary may also hold cash and invest in other instruments, including fixed income securities, that are not Regulation S securities, either as investments or to serve as margin or collateral for the Subsidiary’s Regulation S positions. The Fund and the Subsidiary each complies with the provisions of the 1940 Act regarding capital structure. In addition, the Subsidiary complies with the provisions of Section 17 of the 1940 Act relating to affiliated transactions and custody of portfolio investments. The Fund’s custodian also serves as the custodian to the Subsidiary.

The Subsidiary will be managed pursuant to compliance policies and procedures that are the same, in all material respects, as the policies and procedures adopted by the Fund. As a result, Nuveen Asset

41

The Fund’s investments

Management, in managing the Subsidiary’s portfolio, will be subject to the same investment policies and restrictions that apply to the management of the Fund, and, in particular, to the requirements relating to portfolio leverage, liquidity, brokerage, and the timing and method of the valuation of the Subsidiary’s portfolio investments and shares of the Subsidiary. These policies and restrictions are described in detail throughout this Prospectus. The Fund and Subsidiary will test for compliance with certain investment restrictions on a consolidated basis, except that with respect to its investments in certain securities that may involve leverage, the Subsidiary will comply with asset segregation requirements to the same extent as the Fund.

Nuveen Asset Management will provide investment management and other services to the Subsidiary. Nuveen Asset Management will not receive separate compensation from the Subsidiary for providing it with investment management or administrative services. However, the Fund will pay Nuveen Asset Management based on the Fund’s assets, including the assets invested in the Subsidiary. The Subsidiary will also enter into separate contracts for the provision of custody and audit services with the same or with affiliates of the same service providers that provide those services to the Fund.

The financial statements of the Subsidiary will be consolidated with the Fund’s financial statements in the Fund’s annual and semi-annual reports. The Fund’s annual and semi-annual reports, when produced, will be distributed to Common Shareholders, and copies of the reports will be available on the Fund’s website (http://www.nuveen.com) free of charge. Please refer to the SAI for additional information about the organization and management of the Subsidiary.

OTHER POLICIES

The Fund may enter into certain derivative transactions as a hedging technique to attempt to protect against potential adverse changes in the market value of portfolio instruments. The Fund also may use derivatives to attempt to protect the NAV of the Fund, to facilitate the sale of certain portfolio instruments, to manage the Fund’s effective interest rate exposure, to attempt to manage the effective maturity or duration of investments in the Fund’s portfolio and as a temporary substitute for purchasing or selling particular instruments. From time to time, the Fund also may enter into derivative transactions to create investment exposure to the extent such transactions may facilitate implementation of its strategy more efficiently than through outright purchases or sales of portfolio instruments.

Certain investment policies specifically identified in the SAI as such are considered fundamental and may not be changed without shareholder approval. See “Investment Restrictions” in the SAI. All of the Fund’s other investment policies are not considered to be fundamental by the Fund and can be changed by the Board of Trustees without a vote of the shareholders. The Fund cannot change its fundamental policies without the approval of the holders of a “majority of the outstanding” Common Shares. When used with respect to particular shares of the Fund, a “majority of the outstanding” shares means (i) 67% or more of the shares present at a meeting, if the holders of more than 50% of the shares are present or represented by proxy or (ii) more than 50% of the shares, whichever is less.

Limited term; Eligible Tender Offer

The Declaration of Trust provides that the Fund will have a limited period of existence and will terminate as of the first business day of the month that follows the twelfth anniversary of the effective date of the Fund’s initial registration statement, which is currently anticipated to be May 2, 2033 (the “Stated Termination Date”); provided that the Board of Trustees may, in its sole discretion and without

42

The Fund’s investments

any action by the shareholders of the Fund, by vote of a majority of the then Board of Trustees with notice to the shareholders, extend the Fund’s term for up to two one year periods (in the event of any such extension, the termination date shall be referred to as the “Extended Termination Date” and the later of the Stated Termination Date and the Extended Termination Date is referred to as the “Termination Date”); furthermore, notwithstanding the foregoing, if the Board of Trustees determines to cause the Fund to conduct an Eligible Tender Offer (as defined below), and the Eligible Tender Offer is completed, the Board of Trustees may, in its sole discretion and without any action by the shareholders of the Fund, by vote of a majority of the then Board of Trustees, provide that the Fund may continue without limitation of time, subject to the terms and conditions described below. If an Eligible Tender Offer is not conducted, the Fund will, no later than the Termination Date, cease investment operations, retire or redeem its leverage facilities, liquidate its investment portfolio (to the extent possible) and, on or after the Termination Date, the Fund will distribute all of its liquidated net assets to Common Shareholders of record in one or more distributions.

Eligible Tender Offer. The Declaration of Trust provides that an eligible tender offer (an “Eligible Tender Offer”) is a tender offer by the Fund to all holders of outstanding Common Shares as of a date within the 18 months preceding the Termination Date. If the tender offer is completed, Shareholders who properly tender Common Shares in the Eligible Tender Offer will receive a purchase price equal to the NAV per share on the expiration date of the Eligible Tender Offer. In an Eligible Tender Offer, the Fund will offer to purchase all outstanding Common Shares held by each Common Shareholder. At the time of the Eligible Tender Offer, the Board of Trustees will determine the Termination Threshold. The Termination Threshold will be based on prevailing market conditions at the time of the Eligible Tender Offer.

If the repurchase of all Common Shares properly tendered in an Eligible Tender Offer would result in the Fund’s net assets totaling greater than the Termination Threshold, the Fund will purchase all Common Shares properly tendered and not withdrawn pursuant to the terms of the Eligible Tender Offer and following the completion of such Eligible Tender Offer, the Board of Trustees may, in its sole discretion and without any action by the shareholders of the Fund, provide that the Fund may continue without limitation of time. See “Risks—Fund Level Risks—Limited Term and Tender Offer Risks.” In making this decision, the Board of Trustees will take such actions with respect to the Fund’s continued operations as it deems to be in the best interests of the Fund, based on market conditions at such time, the extent of Common Shareholder participation in the Eligible Tender Offer and all other factors deemed relevant by the Board of Trustees in consultation with Nuveen Fund Advisors, taking into account that Nuveen Fund Advisors may have a potential conflict of interest in seeking to convert the Fund to a fund with a continued existence without limitation of time.

If the number of properly tendered Common Shares would result in the Fund’s net assets totaling less than the Termination Threshold if the Eligible Tender Offer were consummated, the Eligible Tender Offer will be terminated, no Common Shares will be repurchased pursuant to the Eligible Tender Offer and the Fund will begin (or continue) liquidating its investment portfolio and proceed to terminate on the Termination Date.

An Eligible Tender Offer would be made, and Common Shareholders would be notified thereof, in accordance with the Declaration of Trust, the 1940 Act, the 1934 Act, and the applicable tender offer rules thereunder (including Rule 13e-4 and Regulation 14E under the 1934 Act).

Termination, Liquidation. Unless the Fund’s existence is continued without limitation of time, as described under “—Eligible Tender Offer” above, no later than the Termination Date, the Fund will

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The Fund’s investments

cease investment operations, retire or redeem its leverage facilities, liquidate its investment portfolio (to the extent possible) and, on or after the Termination Date, the Fund will distribute all of its liquidated net assets to Common Shareholders of record in one or more distributions. In determining whether to extend the Fund’s term, the Board of Trustees may consider a number of factors, including, without limitation, whether the Fund would be unable to sell its assets at favorable prices in a time frame consistent with the Termination Date due to lack of market liquidity or other adverse market conditions, or whether market conditions are such that it is reasonable to believe that, with an extension, the Fund’s remaining assets would appreciate and generate income in an amount that, in the aggregate, is meaningful relative to the cost and expense of continuing the Fund’s operations.

Nuveen Fund Advisors and Nuveen Asset Management will seek to manage the Fund’s investment portfolio consistent with the Fund’s obligation to cease operations on the Termination Date. To that end, Nuveen Fund Advisors and Nuveen Asset Management intend to seek investments that they reasonably expect can be sold or otherwise exited at favorable prices on or before the Termination Date. However, there is no assurance that a market or other exit strategy will be available for the Fund’s less liquid investments. As the Termination Date approaches, Nuveen Fund Advisors and Nuveen Asset Management expect to seek to liquidate the Fund’s less liquid investments. As a result, based on prevailing market conditions, available investment opportunities and other factors, the Fund may invest the proceeds from the sale of such investments in money market mutual funds, cash, cash equivalents, securities issued or guaranteed by the U.S. government or its instrumentalities or agencies, high quality short-term money market instruments, short-term debt securities, certificates of deposit, bankers’ acceptances and other bank obligations, commercial paper or other liquid debt securities. As a result, as the Termination Date approaches, the Fund’s monthly cash distributions may decline, and there can be no assurance that the Fund will achieve its investment objective or that its investment strategies will be successful.

Depending on a variety of factors, including the performance of the Fund’s investment portfolio over the period of its operations, the amount distributed to Common Shareholders in connection with its termination or paid to participating Common Shareholders upon completion of an Eligible Tender Offer may be less, and potentially significantly less, than your original investment. The Fund’s final distribution to Common Shareholders on the Termination Date and the amount paid to participating Common Shareholders upon completion of an Eligible Tender Offer will be based upon the Fund’s NAV at such time, and initial investors and any investors that purchase Common Shares after the completion of this offering may receive less, and potentially significantly less, than their original investment.

Because the Fund’s assets will be liquidated in connection with its termination or to pay for Common Shares tendered in an Eligible Tender Offer, the Fund may be required to sell portfolio investments when it otherwise would not, including at times when market conditions are not favorable, which may cause the Fund to lose money. The Fund will make a distribution on the Termination Date of all cash raised from the liquidation of its assets prior to that time. However, given the nature of certain of the Fund’s investments, the Fund may be unable to liquidate certain of its investments until after the Termination Date. In this case, the Fund may make one or more additional distributions after the Termination Date of any cash received from the ultimate liquidation of those investments. This would delay distribution payments, perhaps for an extended period of time, and there can be no assurance that the total value of the cash distribution made on the Termination Date and such subsequent distributions, if any, will equal the Fund’s NAV on the Termination Date, depending on the ultimate results of such post-Termination Date asset liquidations. If, as a result of lack of market liquidity or other adverse market conditions, the Board of Trustees determines it is in the best interests of the Fund, the Fund may transfer any portfolio investments that remain unsold on the Termination Date to a liquidating trust and distribute interests in

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The Fund’s investments

such liquidating trust to Common Shareholders as part of the Fund’s final distribution. Interests in the liquidating trust are expected to be nontransferable, except by operation of law. The liquidating trust will seek to liquidate such remaining investments for the benefit of the Common Shareholders as soon as practicable following the Termination Date. However, there can be no assurance as to the timing of or the value obtained from such liquidation. See “Risks—Fund Level Risks—Limited Term and Tender Offer Risks.”

Portfolio composition and other information

The Fund’s portfolio will be composed principally of the following investments. More detailed information about the Fund’s portfolio investments are contained in the SAI under “Portfolio Composition and Other Information.”

CORPORATE BONDS

Corporate bonds are fully taxable debt obligations issued by corporations. These securities fund capital improvements, expansions, debt refinancing or acquisitions that require more capital than would ordinarily be available from a single lender. Investors in corporate bonds lend money to the issuing corporation in exchange for interest payments and repayment of the principal at a set maturity date. Rates on corporate bonds are set according to prevailing interest rates at the time of the issue, the credit rating of the issuer, the length of the maturity and other terms of the security, such as a call feature.

Corporate bonds come in many varieties and may differ in the way that interest is calculated, the amount and frequency of payments, the type of collateral, if any, and the presence of special features (e.g., conversion rights). The Fund’s investments in corporate bonds may include, but are not limited to, senior, junior, secured and unsecured bonds, notes and other debt securities, and may be fixed rate, variable rate or floating rate, among other things. Holders of corporate bonds, as creditors, have a prior legal claim over common and preferred stockholders as to both income and assets of the issuer for the principal and interest due to them, and may have a prior claim over other creditors, but are generally subordinate to any existing lenders in the issuer’s capital structure.

Corporate bonds are subject to the risk of an issuer’s inability to meet principal and interest payments on the obligations and may also be subject to price volatility due to such factors as market interest rates, the issuer’s performance or credit rating, market perception of the creditworthiness of the issuer and general market liquidity. In addition, corporate restructurings, such as mergers, leveraged buyouts, takeovers or similar corporate transactions are often financed by an increase in a corporate issuer’s debt securities. As a result of the added debt burden, the credit quality and market value of an issuer’s existing corporate bonds may decline significantly. Corporate bonds usually yield more than government or agency bonds due to the presence of credit risk.

EMERGING MARKET ISSUERS

The Fund will invest in investments of emerging market issuers. The Fund’s emerging market investments include a broad range of investments of emerging market issuers such as government bonds, corporate bonds, and other sovereign or quasi-sovereign debt instruments. The Fund will classify an issuer of an investment based on the issuer’s country of origin, generally as determined by an unaffiliated, recognized financial data provider. An issuer’s country or origin is based on a number of criteria, such as the issuer’s country of domicile or country in which the issuer conducts its primary operations, the primary exchange on which its securities trade, the location from which the majority of the issuer’s revenue comes, and the

45

Portfolio composition and other information

issuer’s reporting currency. The term “emerging market” describes any country or market that is generally considered to be emerging or developing by major organizations in the international financial community, such as the International Finance Corporation, or by financial industry analysts like MSCI, Inc., which compiles the MSCI Emerging Markets Index, and J.P. Morgan Chase & Co., which compiles several fixed-income emerging markets benchmarks; or other countries or markets with similar emerging characteristics. Emerging markets can include every nation in the world except the United States, Canada, Japan, Australia, New Zealand and most nations located in Western Europe. Notwithstanding the foregoing, the fixed-income portfolio management team generally views Israel as an emerging market.

The Fund’s emerging market debt investments may also include secured loans, unsecured loans, senior loans, second lien loans, subordinated debt and sukuk debt instruments.

Sukuk are certificates structured to comply with Sharia law and its investment principles. These certificates usually represent the beneficial ownership interest in a portfolio of eligible existing or future tangible or intangible assets (“underlying assets”). In a typical sukuk, a special purpose vehicle (“SPV”) issues certificates to investors in exchange for their capital. The SPV transfers the capital to or for the benefit of the entity that is raising the capital (the “obligor”) in exchange for the underlying assets of the obligor that are held in trust by the SPV. The obligor is obligated, usually through a series of contracts, to make periodic payments to investors through the SPV over a specified period of time and a final payment to investors through the SPV on a date certain. Obligors of sukuk include financial institutions and corporations, foreign governments and agencies of foreign governments, including issuers in emerging markets.

SOVEREIGN AND SUPRANATIONAL SECURITIES

Sovereign securities are issued or guaranteed by foreign sovereign governments or their agencies, authorities, political subdivisions or instrumentalities, and supranational agencies. A supranational agency is a multinational union or association in which member countries cede authority and sovereignty on a limited number of matters to the group, whose decisions are binding upon its members. Quasi-sovereign securities typically are issued by companies or agencies that may receive financial support or backing from a local government or in which the government owns a majority of the issuer’s voting shares.

The ability of a foreign sovereign issuer, especially in an emerging market country, to make timely and ultimate payments on its debt obligations will be strongly influenced by the sovereign issuer’s balance of payments, including export performance, its access to international credits and investments, fluctuations of interest rate and the extent of its foreign reserves. A country whose exports are concentrated in a few commodities or whose economy depends on certain strategic imports could be vulnerable to fluctuations in international prices of these commodities or imports. To the extent that a country receives payment for its export in currencies other than dollars, its ability to make debt payments denominated in dollars could be adversely affected. If a sovereign issuer cannot generate sufficient earnings from foreign trade to service its external debt, it may need to depend on continuing loans and aid from foreign governments, commercial banks and multinational organizations. There may be no bankruptcy proceedings similar to those in the U.S. by which defaulted interest may be collected.

The Fund also may invest in debt obligations issued or guaranteed by supranational agencies organized or supported by several national governments, such as the International Bank for Reconstruction and Development (the “World Bank”), the Inter-American Development Bank, the Asian Development Bank,

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Portfolio composition and other information

and the European Investment Bank. In addition, the Portfolio may purchase debt obligations of foreign corporations or financial institutions, such as Yankee bonds (dollar-denominated bonds sold in the United States by foreign companies), Samurai bonds (yen-denominated bonds sold in Japan by non-Japanese issuers), and Euro bonds (bonds not issued in the country (and possibly not the currency of the country) of the issuer).

MUNICIPAL BONDS

The Fund may invest in taxable and tax-exempt municipal securities, including municipal bonds and notes, other securities issued to finance and refinance public projects, and other related securities and derivative instruments creating exposure to municipal bonds, notes and securities that provide for the payment of interest income that is exempt from U.S. regular federal income tax. Municipal bonds are often issued by state and local governmental entities to finance or refinance public projects such as roads, schools, and water supply systems. Municipal bonds may also be issued on behalf of private entities or for private activities, such as housing, medical and educational facility construction, or for privately owned transportation, electric utility and pollution control projects. Municipal bonds may be issued on a long-term basis to provide permanent financing. The repayment of such debt may be secured generally by a pledge of the full faith and credit taxing power of the issuer, a limited or special tax, or any other revenue source, including project revenues, which may include tolls, fees and other user charges, lease payments and mortgage payments. Municipal bonds may also be issued to finance projects on a short-term interim basis, anticipating repayment with the proceeds of the later issuance of long-term debt. The Fund may purchase municipal securities in the form of bonds, notes, leases or certificates of participation; structured as callable or non-callable; with payment forms including fixed coupon, variable rate, zero coupon, capital appreciation bonds, tender option bonds, and residual interest bonds or inverse floating rate securities; or acquired through investments in pooled vehicles, partnerships or other investment companies.

Inverse floating rate securities

Inverse floating rate securities (sometimes referred to as “inverse floaters”) are securities whose interest rates bear an inverse relationship to the interest rate on another security or the value of an index. Generally, inverse floating rate securities represent beneficial interests in a special purpose trust formed for the purpose of holding municipal bonds. The special purpose trust typically sells two classes of beneficial interests or securities: floating rate securities (sometimes referred to as short-term floaters or tender option bonds) and inverse floating rate securities (sometimes referred to as inverse floaters or residual interest securities). Both classes of beneficial interests are represented by certificates. The short-term floating rate securities have first priority on the cash flow from the municipal bonds held by the special purpose trust. Typically, a third party, such as a bank, broker-dealer or other financial institution, grants the floating rate security holders the option, at periodic intervals, to tender their securities to the institution and receive the face value thereof. As consideration for providing the option, the financial institution receives periodic fees. The holder of the short-term floater effectively holds a demand obligation that bears interest at the prevailing short-term, tax-exempt rate. However, the institution granting the tender option will not be obligated to accept tendered short-term floaters in the event of certain defaults or a significant downgrade in the credit rating assigned to the bond issuer. For its inverse floating rate investment, the Fund receives the residual cash flow from the special purpose trust. Because the holder of the short-term floater is generally assured liquidity at the face value of the security, the Fund as the holder of the inverse floater assumes the interest rate cash flow risk and the market value risk associated with the municipal security deposited into the special purpose trust. The volatility of the interest cash flow and the residual market value will vary with the degree to which the trust is leveraged. This is expressed in the ratio of the total face value of the short-term floaters in relation to the value of

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Portfolio composition and other information

the residual inverse floaters that are issued by the special purpose trust. In addition, all voting rights and decisions to be made with respect to any other rights relating to the municipal bonds held in the special purpose trust are passed through to the Fund, as the holder of the residual interest securities.

Because increases in the interest rate on the short-term floaters reduce the residual interest paid on inverse floaters, and because fluctuations in the value of the municipal bond deposited in the special purpose trust affect the value of the inverse floater only, and not the value of the short-term floater issued by the trust, and because fluctuations in the value of the municipal bond deposited in the special purpose trust affect the value of the inverse floater only, and not the value of the short-term floater issued by the trust, inverse floaters’ value is generally more volatile than that of fixed rate bonds. The market price of inverse floating rate securities is generally more volatile than the underlying securities due to the leveraging effect of this ownership structure. These securities generally will underperform the market of fixed rate bonds in a rising interest rate environment (i.e., when bond values are falling), but tend to outperform the market of fixed rate bonds when interest rates decline or remain relatively stable. Although volatile, inverse floaters typically offer the potential for yields exceeding the yields available on fixed rate bonds with comparable credit quality, coupon, call provisions and maturity. Inverse floaters have varying degrees of liquidity based upon, among other things, the liquidity of the underlying securities deposited in a special purpose trust.

The Fund may invest in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund. In Nuveen Fund Advisors’ and Nuveen Asset Management’s discretion, the Fund may enter into a separate shortfall and forbearance agreement with the liquidity provider to a special purpose trust. The Fund may enter into such recourse agreements (i) when the liquidity provider to the special purpose trust requires such an agreement because the level of leverage in the trust exceeds the level that the liquidity provider is willing support absent such an agreement; and/or (ii) to seek to prevent the liquidity provider from collapsing the trust in the event that the municipal obligation held in the trust has declined in value. Such an agreement would require the Fund to reimburse the third party granting liquidity to the floating rate security holders the special purpose trust, upon termination of the trust issuing the inverse floater, the difference between the liquidation value of the bonds held in the trust and the principal amount due to the holders of floating rate interests. Such agreements may expose the Fund to a risk of loss that exceeds its investment in the inverse floating rate securities. Absent a shortfall and forbearance agreement, the Fund would not be required to make such a reimbursement. If the Fund chooses not to enter into such an agreement, the special purpose trust could be liquidated and the Fund could incur a loss.

The Fund will segregate or earmark liquid assets with its custodian in accordance with the 1940 Act to cover its obligations with respect to its investments in special purpose trusts.

Investments in inverse floating rate securities have the economic effect of leverage. The use of leverage creates special risks for Common Shareholders. See “Leverage” and “Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk.”

ASSET-BACKED SECURITIES

ABS are securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets, either fixed or revolving, that by their terms convert into cash within a finite time period. Asset-backed securitization is a financing technique in which financial assets, in many cases themselves less liquid, are pooled and converted into instruments that may be offered and sold in the capital markets. In a basic securitization structure, an entity, often a financial institution, originates or otherwise

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Portfolio composition and other information

acquires a pool of financial assets, either directly or through an affiliate. It then sells the financial assets, again either directly or through an affiliate, to a specially created investment vehicle that issues securities “backed” or supported by those financial assets, which securities are ABS. Payment on the ABS depends primarily on the cash flows generated by the assets in the underlying pool and other rights designed to assure timely payment, such as liquidity facilities, guarantees or other features generally known as credit enhancements. While residential mortgages were the first financial assets to be securitized in the form of MBS, non-mortgage related securitizations have grown to include many other types of financial assets, such as credit card receivables, auto loans and student loans.

U.S. GOVERNMENT OBLIGATIONS

Securities issued or guaranteed by U.S. government agencies and instrumentalities include obligations that are supported by: (a) the full faith and credit of the U.S. Treasury (e.g., direct pass-through certificates issued or guaranteed by the Government National Mortgage Association (“Ginnie Mae” or “GNMA”); (b) the limited authority of the issuer or guarantor to borrow from the U.S. Treasury (e.g., obligations of Federal Home Loan Banks); or (c) only the credit of the issuer or guarantor (e.g., obligations of Freddie Mac). In the case of obligations not backed by the full faith and credit of the U.S. Treasury, the agency issuing or guaranteeing the obligation is principally responsible for ultimate repayment.

Agencies and instrumentalities that issue or guarantee debt securities and that have been established or sponsored by the U.S. government include, in addition to those identified above, the Bank for Cooperatives, the Export-Import Bank, the Federal Farm Credit System, the Federal Intermediate Credit Banks, the Federal Land Banks, Fannie Mae and the Student Loan Marketing Association.

MORTGAGE-BACKED SECURITIES, INCLUDING COMMERCIAL MORTGAGE-BACKED SECURITIES

The Fund may invest in mortgage-backed securities. A mortgage-backed security is a type of pass-through security, which is a security representing pooled debt obligations repackaged as interests that pass income through an intermediary to investors. In the case of mortgage-backed securities, the ownership interest is in a pool of mortgage loans. Commercial mortgage-backed securities (“CMBS”) are backed by a pool of mortgages on commercial property.

Mortgage-backed securities are most commonly issued or guaranteed by Ginnie Mae, Fannie Mae or Freddie Mac, but may also be issued or guaranteed by other private issuers.

GNMA is a government-owned corporation that is an agency of the U.S. Department of Housing and Urban Development. It guarantees, with the full faith and credit of the United States, full and timely payment of all monthly principal and interest on its mortgage-backed securities.

Government-related guarantors (i.e., not backed by the full faith and credit of the United States government) include FNMA and FHLMC. FNMA is a government-sponsored corporation. FNMA purchases conventional (i.e., not insured or guaranteed by any government agency) residential mortgages from a list of approved seller/servicers which include state and federally chartered savings and loan associations, mutual savings banks, commercial banks and credit unions and mortgage bankers. Pass-through securities issued by FNMA are guaranteed as to timely payment of principal and interest by FNMA, but are not backed by the full faith and credit of the United States Government. FHLMC was created by Congress in 1970 for the purpose of increasing the availability of mortgage credit for

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Portfolio composition and other information

residential housing. It is a government-sponsored corporation that issues Participation Certificates (“PCs”), which are pass-through securities, each representing an undivided interest in a pool of residential mortgages. FHLMC guarantees the timely payment of interest and ultimate collection of principal, but PCs are not backed by the full faith and credit of the United States government.

On September 6, 2008, the Federal Housing Finance Agency (“FHFA”) placed FNMA and FHLMC into conservatorship. As the conservator, FHFA succeeded to all rights, titles, powers and privileges of FNMA and FHLMC and of any stockholder, officer or director of FNMA and FHLMC with respect to FNMA and FHLMC and the assets of FNMA and FHLMC. FHFA selected a new chief executive officer and chairman of the board of directors for each of FNMA and FHLMC. In addition, the U.S. Treasury Department agreed to provide FNMA and FHLMC with up to $100 billion of capital each to ensure that they are able to continue to provide ongoing liquidity to the U.S. home mortgage market. FNMA and FHLMC are continuing to operate as going concerns while in conservatorship and each remain liable for all of its obligations, including its guaranty obligations, associated with its mortgage-backed securities.

Mortgage-backed securities issued by private issuers, whether or not such obligations are subject to guarantees by the private issuer, may entail greater risk than obligations directly or indirectly guaranteed by the U.S. government. Any investments a Fund makes in mortgage-related securities that are issued by private issuers have some exposure to subprime loans as well as to the mortgage and credit markets generally. Private issuers include commercial banks, savings associations, mortgage companies, investment banking firms, finance companies and special purpose finance entities (called special purpose vehicles or structured investment vehicles) and other entities that acquire and package mortgage loans for resale as mortgage-related securities. Unlike mortgage-related securities issued or guaranteed by the U.S. government or one of its sponsored entities, mortgage-related securities issued by private issuers do not have a government or government sponsored entity guarantee, but may have credit enhancement provided by external entities such as banks or financial institutions or achieved through the structuring of the transaction itself. Examples of such credit support arising out of the structure of the transaction include: (1) the issuance of senior and subordinated securities (e.g., the issuance of securities by a special purpose vehicle in multiple classes or “tranches,” with one or more classes being senior to other subordinated classes as to the payment of principal and interest, with the result that defaults on the underlying mortgage loans are borne first by the holders of the subordinated class); (2) the creation of “reserve funds” (in which case cash or investments, sometimes funded from a portion of the payments on the underlying mortgage loans, are held in reserve against future losses); and (3) “overcollateralization” (in which case the scheduled payments on, or the principal amount of, the underlying mortgage loans exceeds that required to make payment of the securities and pay any servicing or other fees). However, there can be no guarantee that credit enhancements, if any, will be sufficient to prevent losses in the event of defaults on the underlying mortgage loans.

In addition, mortgage-related securities that are issued by private issuers are not subject to the underwriting requirements for the underlying mortgages that are applicable to those mortgage related securities that have a government or government-sponsored entity guarantee. As a result, the mortgage loans underlying private mortgage-related securities may, and frequently do, have less favorable collateral, credit risk or other underwriting characteristics than government or government sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose and borrower characteristics. Privately issued pools more frequently include second mortgages, high loan-to-value mortgages and manufactured housing loans. The coupon rates and maturities of the underlying mortgage loans in a private-label mortgage-related securities pool may vary to a greater extent than those included in a government guaranteed pool, and the pool may include subprime mortgage loans. Subprime loans refer to loans made to borrowers with weakened credit

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Portfolio composition and other information

histories or with a lower capacity to make timely payments on their loans. For these reasons, the loans underlying these securities have had in many cases higher default rates than those loans that meet government underwriting requirements.

The risk of non-payment is greater for mortgage-related securities that are backed by mortgage pools that contain subprime loans, but a level of risk exists for all loans. Market factors adversely affecting mortgage loan repayments may include a general economic turndown, high unemployment, a general slowdown in the real estate market, a drop in the market prices of real estate, or an increase in interest rates resulting in higher mortgage payments by holders of adjustable rate mortgages.

Privately issued mortgage-related securities are generally less liquid than obligations directly or indirectly guaranteed by the U.S. government or a government-sponsored entity, especially when there is a perceived weakness in the mortgage and real estate market sectors. Without an active trading market, mortgage-related securities held in a Fund’s portfolio may be particularly difficult to value because of the complexities involved in assessing the value of the underlying mortgage loans. The average life of a mortgage-backed security is likely to be substantially less than the original maturity of the mortgage pools underlying the securities. Prepayments of principal by mortgagors and mortgage foreclosures will usually result in the return of the greater part of principal invested far in advance of the maturity of the mortgages in the pool or can result in credit losses.

LOANS

The Fund may invest in loans, including senior secured loans, unsecured and/or subordinated loans, loan participations and unfunded contracts. These loans are typically made by or issued to corporations primarily to finance acquisitions, refinance existing debt, support organic growth, or pay out dividends, and are typically originated by large banks and are then syndicated out to institutional investors as well as to other banks. Loans typically bear interest at a floating rate, although some loans pay a fixed rate. Floating rate loans have interest rates that reset periodically, typically monthly or quarterly. The interest rates on floating rate loans are generally based on a percentage above the London Inter-Bank Offered Rate, a U.S. bank’s prime or base rate, the overnight federal funds rate or another rate. Due to their lower place in the borrower’s capital structure, unsecured and/or subordinated loans involve a higher degree of overall risk than senior bank loans of the same borrower. Loan participations are loans that are shared by a group of lenders. Unfunded commitments are contractual obligations by lenders (such as the Fund) to loan an amount in the future or that is due to be contractually funded in the future. Assignments may be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning lender.

Loans may have restrictive covenants limiting the ability of a borrower to further encumber its assets. The types of covenants included in loan agreements generally vary depending on market conditions, the creditworthiness of the borrower, the nature of the collateral securing the loan and other factors. Such restrictive covenants normally allow for early intervention and proactive mitigation of credit risk by providing lenders with the ability to (1) intervene and either prevent or restrict actions that may potentially compromise the borrower’s ability to repay the loan and/or (2) obtain concessions from the borrower in exchange for waiving or amending a particular covenant. Loans with fewer or weaker restrictive covenants may limit the Fund’s ability to intervene or obtain additional concessions from borrowers.

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Portfolio composition and other information

SENIOR LOANS

The Fund may invest in (i) senior loans made by banks or other financial institutions to foreign corporations, partnerships and other business entities (each a “Borrower” and, collectively, “Borrowers”), (ii) assignments of such interests in senior loans, or (iii) participation interests in senior loans. Senior loans hold the most senior position in the capital structure of a Borrower, are typically secured with specific collateral and have a claim on the assets and/or stock of the Borrower that is senior to that held by subordinated debt holders and stockholders of the Borrower. The capital structure of a Borrower may include senior loans, senior and junior subordinated debt, preferred stock and common stock issued by the Borrower, typically in descending order of seniority with respect to claims on the Borrower’s assets. The proceeds of senior loans primarily are used by Borrowers to finance leveraged buyouts, recapitalizations, mergers, acquisitions, stock repurchases, refinancings, internal growth and for other corporate purposes. A senior loan is typically originated, negotiated and structured by a U.S. or foreign commercial bank, insurance company, finance company or other financial institution (“Agent”) for a lending syndicate of financial institutions which typically includes the Agent (“Lenders”). The Agent typically administers and enforces the senior loans on behalf of the other Lenders in the syndicate. In addition, an institution, typically but not always the Agent, holds any collateral on behalf of the Lenders. The Fund normally will rely primarily on the Agent to collect principal of and interest on a Senior Loan. Also, the Fund usually will rely on the Agent to monitor compliance by the Borrower with the restrictive covenants in a loan agreement.

Senior loans in which the Fund invests generally pay interest at rates that are redetermined periodically at short-term intervals by reference to a base lending rate, plus a premium. Senior loans typically have rates of interest that are redetermined either daily, monthly, quarterly or semi-annually by reference to a base lending rate plus a premium or credit spread. These base lending rates are primarily London Inter-Bank Offered Rate (“LIBOR”) (of any tenor, but typically between one month and six months, and currency), and secondarily the prime rate offered by one or more major U.S. banks (the “Prime Rate”) and the certificate of deposit (“CD”) rate or other base lending rates used by commercial lenders. As adjustable rate loans, the frequency of how often a senior loan resets its interest rate will impact how closely such senior loans track current market interest rates. Senior loans typically have a stated term of between one and eight years. In the experience of Nuveen Asset Management, the average life of senior loans in recent years has been approximately two years because of prepayments.

In July 2017, the Financial Conduct Authority (the authority that regulates LIBOR) announced it intends to stop compelling banks to submit rates for the calculation of LIBOR after 2021. Alternatives to LIBOR are established or in development in most major currencies, including the Secured Overnight Financing Rate (“SOFR”), which is intended to replace U.S. dollar LIBOR. It is unknown if SOFR will become the primary base lending rate for senior loans.

The Fund primarily purchases senior loans by assignment from a participant in the original syndicate of lenders or from subsequent assignees of such interests. The purchaser of an assignment typically succeeds to all the rights and obligations under the loan agreement with the same rights and obligations as the assigning Lender. Assignments may, however, be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning Lender.

The Fund may purchase participation interests in the original syndicate making senior loans. Loan participation interests typically represent direct participations in a loan to a corporate Borrower, and generally are offered by banks or other financial institutions or lending syndicates. The Fund may participate in such syndications, or can buy part of a senior loan, becoming a part Lender. When

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Portfolio composition and other information

purchasing a participation interest, the Fund assumes the credit risk associated with the corporate Borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. The participation interests in which the Fund may invest may not be rated by any NRSRO. See “Risks—Portfolio Level Risks—Senior Loan Participation Risk.”

Although senior loans have the most senior position in a Borrower’s capital structure and are often secured by specific collateral, they are typically below investment grade quality and may have below investment grade ratings; these ratings are associated with securities having speculative characteristics. Senior loans rated below investment grade may therefore be regarded as “junk,” despite their senior capital structure position or specific collateral pledged to secure such loans.” The Fund may purchase and retain in its portfolio senior loans where the Borrowers have experienced, or may be perceived to be likely to experience, credit problems, including involvement in or recent emergence from bankruptcy reorganization proceedings or other forms of debt restructuring. Such investments may provide opportunities for enhanced income as well as capital appreciation. At times, in connection with the restructuring of a senior loan either outside of bankruptcy court or in the context of bankruptcy court proceedings, the Fund may determine or be required to accept equity securities or junior debt securities in exchange for all or a portion of a senior loan.

LOAN PARTICIPATIONS AND ASSIGNMENTS

The Fund may purchase participations and/or assignments in commercial loans. Such investments may be secured or unsecured and may pay interest at fixed or floating rates. Loan participations and assignments involve special types of risk, including interest rate risk, liquidity risk and the risks of being a lender.

Loan participations typically represent direct participation, together with other parties, in a loan to a corporate borrower, and generally are offered by banks or other financial institutions or lending syndicates. The Fund may participate in such syndications, or can buy part of a loan, becoming a part lender. When purchasing loan participations, a Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. The loan participations in which the Fund intends to invest may not be rated by any nationally recognized rating service.

Investments in loans through a direct assignment of the financial institution’s interests with respect to the loan may involve additional risks to the Fund. The purchaser of an assignment typically succeeds to all the rights and obligations under the loan agreement with the same rights and obligations as the assigning lender. Assignments may, however, be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning lender. If a loan is foreclosed, the Fund could become part owner of any collateral, and would bear the costs and liabilities associated with owning and disposing of the collateral. In addition, it is conceivable that under emerging legal theories of lender liability, the Fund could be held liable as co-lender. It is unclear whether loans and other forms of indebtedness offer securities law protections against fraud and misrepresentation. In the absence of definitive regulatory guidance, the Fund relies on Nuveen Asset Management’s research in an attempt to avoid situations where fraud or misrepresentation could adversely affect the Fund.

A loan is often administered by an agent bank acting as agent for all holders. The agent bank administers the terms of the loan, as specified in the loan agreement. In addition, the agent bank is normally responsible for the collection of principal and interest payments from the corporate borrower and the apportionment of these payments to the credit of all institutions which are parties to the loan agreement.

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Portfolio composition and other information

Unless, under the terms of the loan, the Fund has direct recourse against the corporate borrower, the Fund may have to rely on the agent bank or other financial intermediary to apply appropriate credit remedies against a corporate borrower. A financial institution’s employment as agent bank might be terminated in the event that it fails to observe a requisite standard of care or becomes insolvent. A successor agent bank would generally be appointed to replace the terminated agent bank, and assets held by the agent bank under the loan agreement should remain available to holders of such indebtedness. However, if assets held by the agent bank for the benefit of the Fund were determined to be subject to the claims of the agent bank’s general creditors, the Fund might incur certain costs and delays in realizing payment on a loan or loan participation and could suffer a loss of principal and/or interest. In situations involving other interposed financial institutions (e.g., an insurance company or governmental agency) similar risks may arise.

SECOND LIEN LOANS

The Fund may invest in second lien loans and unsecured loans. Such loans are made by public and private corporations and other non-governmental Borrowers for a variety of purposes. As in the case of senior loans, the Fund may purchase interests in second lien loans and unsecured loans through assignments or participations. Second lien loans have similar characteristics as senior loans except that such interests are junior in priority to debt secured with a first lien. Second lien loans are second in priority of payment to one or more senior loans of the related Borrower and are typically secured by a second priority security interest or lien to or on specified collateral securing the Borrower’s obligation under the indebtedness. They typically have similar protections and rights as senior loans. Second lien loans are not (and by their terms cannot become) subordinate in priority of payment to any obligation of the related Borrower other than senior loans of such Borrower. Second lien loans may feature fixed or floating rate interest payments. Because second lien loans are junior to senior loans, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk. In addition, second lien loans of below investment grade quality share many of the risk characteristics of other below investment grade debt instruments.

Unsecured loans generally have lower priority in right of payment compared to holders of secured interests of the Borrower. Unsecured loans are not secured by a security interest or lien to or on specified collateral securing the Borrower’s obligation under the indebtedness. Unsecured loans by their terms may be or may become subordinate in right of payment to other obligations of the Borrower, including senior loans, second lien loans and other interests. Unsecured loans may have fixed or adjustable floating rate interest payments. Because unsecured loans are subordinate to senior loans and other secured debt of the Borrower, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk. Such investments generally are of below investment grade quality. Unsecured loans of below investment grade quality share many of the same risks of other below investment grade debt instruments.

SUBORDINATED LOANS

The subordinated loans in which the Fund may invest are typically privately-negotiated investments that rank junior in priority of payment to senior debt, such as senior loans, and are often unsecured. Because subordinated interests may rank lower as to priority of payment than senior loans and second lien loans of the Borrower, they may present a greater degree of investment risk than senior loans and second lien loans but often pay interest at higher rates reflecting this additional risk. Other than their more subordinated status, such investments have many characteristics and risks similar to senior loans and second lien loans discussed above. Subordinated interests of below investment grade quality share risks

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Portfolio composition and other information

of other below investment grade debt instruments. Subordinated loans rank senior to common and preferred equity in a Borrower’s capital structure. Subordinated loans may have elements of both debt and equity instruments, offering fixed or adjustable rates of return in the form of interest payments associated with senior debt, while providing lenders an opportunity to participate in the capital appreciation of a Borrower, if any, through an equity interest. This equity interest may take the form of warrants or direct equity investments which will be in conjunction with the subordinated loans. Due to their higher risk profile and often less restrictive covenants as compared to senior loans, subordinated loans generally earn a higher return than secured senior loans. The warrants associated with subordinated loans are typically detachable, which allows lenders the opportunity to receive repayment of their principal on an agreed amortization schedule while retaining their equity interest in the Borrower. Subordinated loans also may include a “put” feature, which permits the holder to sell its equity interest back to the Borrower at a price

determined through an agreed formula.

The Fund may invest in subordinated loans that are primarily unsecured and that provide for relatively high, adjustable rates of interest, providing the Fund with significant current interest income. The subordinated loans in which the Fund may invest may have interest-only payments in the early years, with amortization of principal deferred to the later years of the subordinated loans. In some cases, the Fund may acquire subordinated loans that, by their terms, convert into equity or additional debt instruments or defer payments of interest for the first few years after issuance. Also, in some cases the subordinated loans in which the Fund may invest will be collateralized by a subordinated lien on some or all of the assets of the Borrower.

PREFERRED SECURITIES

The Fund may invest in all types of preferred securities, including both traditional preferred securities and non-traditional preferred securities. Traditional preferred securities are generally equity securities of the issuer that have priority over the issuer’s common shares as to the payment of dividends (i.e., the issuer cannot pay dividends on its common shares until the dividends on the preferred shares are current) and as to the payout of proceeds of a bankruptcy or other liquidation, but are subordinate to an issuer’s senior debt and junior debt as to both types of payments. Additionally, in a bankruptcy or other liquidation, traditional preferred securities are generally subordinate to an issuer’s trade creditors and other general obligations. Traditional preferred securities may be perpetual or have a term, and typically have a fixed liquidation (or “par”) value.

The term “preferred securities” also includes certain hybrid securities and other types of preferred securities that do not have the traditional features described above. Preferred securities that are hybrid securities often behave similarly to investments in traditional preferred securities and are regarded by market investors as being part of the preferred securities market. Such hybrid securities possess varying combinations of features of both debt and traditional preferred securities and as such they may constitute senior debt, junior debt or preferred shares in an issuer’s capital structure. Thus, they may not be subordinate to a company’s debt securities (as are traditional preferred securities).

Hybrid securities include trust preferred securities. Trust preferred securities are typically issued by corporations, generally in the form of interest-bearing notes with preferred securities characteristics, or by an affiliated business trust of a corporation or other special purpose entity, generally in the form of beneficial interests in subordinated debentures or similarly structured securities. The trust preferred securities market consists of both fixed and floating coupon rate securities that are either perpetual in nature or have stated maturity dates. Trust preferred securities may defer payment of income without

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Portfolio composition and other information

triggering an event of default. These securities may have many characteristics of equity due to their subordinated position in an issuer’s capital structure.

Preferred securities may also include certain forms of debt that have many characteristics of preferred shares, and that are regarded by the investment marketplace to be part of the broader preferred securities market. Among these preferred securities are certain exchange-listed debt issues that historically have several attributes, including trading and investment performance characteristics, in common with exchange-listed traditional preferred securities and hybrid securities. Generally, these types of preferred securities are senior debt or junior debt in the capital structure of an issuer.

As a general matter, dividend or interest payments on preferred securities may be cumulative or non-cumulative and may be deferred (in the case of cumulative payments) or skipped (in the case of non-cumulative payments) at the option of the issuer. Generally, preferred security holders have no voting rights with respect to the issuing company, except in some cases voting rights may arise if the issuer fails to pay the preferred share dividends or if a declaration of default occurs and is continuing.

Preferred securities may either trade over-the-counter (“OTC”) or trade on an exchange. Preferred securities can be structured differently for retail and institutional investors, and the Fund may invest in preferred securities of either structure. The retail segment is typified by $25 par value exchange-traded securities and the institutional segment is typified by $1,000 par value OTC securities. Both $25 and $1,000 par value securities are often callable at par value, typically at least five years after their original issuance date.

Preferred securities may be issued with either a final maturity date, or as a perpetual structure. In certain instances, a final maturity date may be extended and/or the final payment of principal may be deferred at the issuer’s option for a specified time without any adverse consequence to the issuer.

HIGH YIELD INSTRUMENTS

High yield instruments or “junk bonds” that are rated below investment grade involve a greater degree of risk (in particular, a greater risk of default) than, and special risks in addition to, the risks associated with investment grade instruments. Under rating agency guidelines, medium- and lower-rated instruments and comparable unrated instruments will likely have some quality and protective characteristics that are outweighed by large uncertainties or major risk exposures to adverse conditions. Medium- and lower-rated instruments may have poor prospects of ever attaining any real investment standing, may have a current identifiable vulnerability to default or be in default, may be unlikely to have the capacity to pay interest or dividends and repay liquidation preference or principal when due in the event of adverse business, financial or economic conditions, and/or may be likely to be in default or not current in the payment of interest, dividends, liquidation preference or principal. Such instruments are considered speculative with respect to the issuer’s capacity to pay interest or dividends and repay liquidation preference or principal in accordance with the terms of the obligation. Accordingly, it is possible that these types of factors could reduce the value of securities held by the Fund with a commensurate effect on the value of the Common Shares. High yield instruments involve substantial risk of loss and are susceptible to default or decline in market value due to real or perceived adverse economic and business developments or competitive industry conditions, as compared to higher-rated instruments. These instruments generally provide higher income than investment grade instruments in an effort to compensate investors for their higher risk of default, which is the issuer’s failure to make required interest, dividends, liquidation preference or principal payments on the securities. High yield instruments issuers include small or relatively new companies lacking the history or capital to merit investment-grade

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Portfolio composition and other information

status, former blue chip companies downgraded because of financial problems, companies electing to borrow heavily to finance or avoid a takeover or buyout, and firms with heavy debt loads.

The secondary markets for these instruments are generally not as liquid as the secondary markets for higher rated instruments. The secondary markets for high yield instruments are concentrated in relatively few market makers and the participants in the market are mostly institutional investors, including insurance companies, banks, other financial institutions and mutual funds. In addition, the trading volume for high yield instruments is generally lower than that for higher-rated instruments, and the secondary markets could contract under adverse market or economic conditions independent of any specific adverse changes in the condition of a particular issuer. These factors may have an adverse effect on the ability of the Fund to dispose of particular portfolio investments, may adversely affect the Fund’s NAV per share and may limit the ability of the Fund to obtain accurate market quotations for purposes of valuing securities and calculating NAV. If the Fund is not able to obtain precise or accurate market quotations for a particular instrument, it will become more difficult to value the Fund’s portfolio investments, and a greater degree of judgment may be necessary in making such valuations. Less liquid secondary markets may also affect the ability of the Fund to sell instruments at their fair value. If the secondary markets for high yield instruments contract due to adverse economic conditions or for other reasons, certain securities in the Fund’s portfolio may become illiquid and the proportion of the Fund’s assets invested in illiquid instruments may significantly increase.

Prices for high yield instruments may be affected by legislative and regulatory developments. These laws could adversely affect the Fund’s NAV and investment practices, the secondary market for high yield instruments, the financial condition of issuers of these securities and the value of outstanding high yield instruments. See “Risks—Portfolio Level Risks—Below Investment Grade Risk.”

High yield instruments rated in the lower rating categories (Caa1 or lower by Moody’s, CCC+ or lower by S&P or Fitch, or comparably rated by another NRSRO) are subject to very high credit risk. The Fund may not invest in an issuer who is in default on its obligations to pay principal or interest thereon when due or that is in bankruptcy or insolvency proceedings.

REGULATION S SECURITIES

The Fund may seek to provide exposure to Regulation S securities that are not freely tradable in the U.S. by investing in the Subsidiary. The Fund may also invest directly in Regulation S securities that are freely tradable in the U.S. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the SEC pursuant to Regulation S of the 1933 Act. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale. Although Regulation S securities may be resold in privately negotiated transactions, the price realized from these sales could be less than the price originally paid by the Fund. Further, companies whose securities are not publicly traded may not be subject to the disclosure of other investor protection requirements that would be applicable if their securities were publicly traded. Accordingly, Regulation S securities may involve a high degree of business and financial risk and may result in substantial losses. See “Risks—Fund Level Risks—Subsidiary Risk” and “—Portfolio Level Risks—Regulation S Securities Risk.”

ILLIQUID INVESTMENTS

The Fund may invest in illiquid investments (i.e., investments that are not readily marketable), including, but not limited to, restricted investments (investments the disposition of which is restricted under the

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Portfolio composition and other information

federal securities laws), securities that may be resold only pursuant to Rule 144A under the 1933 Act that are deemed to be illiquid, and certain repurchase agreements.

Restricted investments may be sold only in privately negotiated transactions or in a public offering with respect to which a registration statement is in effect under the 1933 Act. Where registration is required, the Fund may be obligated to pay all or part of the registration expenses and a considerable period may elapse between the time of the decision to sell and the time the Fund may be permitted to sell a investment under an effective registration statement. If, during such a period, adverse market conditions were to develop, the Fund might obtain a less favorable price than that which prevailed when it decided to sell. To the extent that the Board of Trustees or its delegatee determines that the price of any illiquid investment provided by the pricing service is inappropriate, such investment will be priced at a fair value as determined in good faith by the Board or its delegatee.

DERIVATIVES

The Fund may use certain derivative instruments in pursuit of its investment objective. Such instruments include financial futures contracts, forward contracts, swap contracts (including interest rate, total return and credit default swaps), options on financial futures, options on swap contracts or other derivative instruments. The credit default swaps in which the Fund may invest include CDX and single-name CDS. A CDX is a portfolio of credit default swaps with similar characteristics, such as credit default swaps on high-yield bonds. Certain CDX instruments are subject to mandatory central clearing and exchange trading, which may reduce counterparty credit risk and increase liquidity compared to other credit default swaps or CDX transactions. Unlike other types of credit default swaps, single-name CDS do not have the benefit of diversification across many issuers. Interest rate swaps involve the exchange by the Fund with a counterparty of their respective commitments to pay or receive interest, such as an exchange of fixed-rate payments for floating rate payments. The Fund will usually enter into interest rate swaps on a net basis; that is, the two payment streams will be netted out in a cash settlement on the payment date or dates specified in the instrument, with the Fund receiving or paying, as the case may be, only the net amount of the two payments. See “Portfolio Composition and Other Information—Hedging Strategies and Other Uses of Derivatives” in the SAI and “Asset Segregation” below.

The requirements for qualification as a regulated investment company (“RIC”) may also limit the extent to which the Fund may invest in futures, options on futures and swaps. See “Tax Matters.”

Nuveen Fund Advisors and Nuveen Asset Management may use derivative instruments to seek to enhance return, to attempt to hedge some of the risk of the Fund’s investments in fixed-income investments, to attempt to manage the effective maturity or duration of investments in the Fund’s portfolio or as a substitute for a position in the underlying asset. These types of strategies may generate taxable income. The Fund will value derivative instruments at market/fair value for purposes of calculating compliance with the Fund’s 80% investment policy in fixed-income investments.

There is no assurance that these derivative strategies will be available at any time or that, if used, that the strategies will be successful.

Swap transactions

The Fund may enter into total return, interest rate and credit default swap agreements and interest rate caps, floors and collars. The Fund may also enter into options on the foregoing types of swap agreements (“swap options”).

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Portfolio composition and other information

The Fund may enter into swap transactions for any purpose consistent with its investment objective and strategies, such as for the purpose of attempting to obtain or preserve a particular return or spread at a lower cost than obtaining a return or spread through purchases and/or sales of instruments in other markets, as a duration management technique, to attempt to reduce risk arising from the ownership of a particular instrument, or to gain exposure to certain sectors or markets in the most economical way possible.

Swap agreements are two party contracts entered into primarily by institutional investors for a specified period of time. In a standard swap transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on a particular predetermined asset, reference rate or index. The gross returns to be exchanged or swapped between the parties are generally calculated with respect to a notional amount, e.g., the return on or increase in value of a particular dollar amount invested at a particular interest rate or in a basket of securities representing a particular index. The notional amount of the swap agreement generally is only used as a basis upon which to calculate the obligations that the parties to the swap agreement have agreed to exchange.

Interest rate swaps, caps, collars and floors

Interest rate swaps are bilateral contracts in which each party agrees to make periodic payments to the other party based on different referenced interest rates (e.g., a fixed rate and a floating rate) applied to a specified notional amount. The purchase of an interest rate floor entitles the purchaser, to the extent that a specified index falls below a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling such interest rate floor. The purchase of an interest rate cap entitles the purchaser, to the extent that a specified index rises above a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling such interest rate cap. Interest rate collars involve selling a cap and purchasing a floor or vice versa to protect the Fund against interest rate movements exceeding given minimum or maximum levels.

The use of interest rate transactions, such as interest rate swaps and caps, is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio investment transactions. Depending on the state of interest rates in general, the Fund’s use of interest rate swaps or caps could enhance or harm the overall performance of the Fund’s common shares. To the extent there is a decline in interest rates, the value of the interest rate swap or cap could decline, and could result in a decline in the NAV of the common shares. In addition, if short-term interest rates are lower than the Fund’s fixed rate of payment on the interest rate swap, the swap will reduce common share net earnings. If, on the other hand, short-term interest rates are higher than the fixed rate of payment on the interest rate swap, the swap will enhance common share net earnings. Buying interest rate caps could enhance the performance of the common shares by providing a maximum leverage expense. Buying interest rate caps could also decrease the net earnings of the common shares in the event that the premium paid by the Fund to the counterparty exceeds the additional amount such Fund would have been required to pay had it not entered into the cap agreement.

Total return swaps

In a total return swap, one party agrees to pay the other the “total return” of a defined underlying asset during a specified period, in return for periodic payments based on a fixed or variable interest rate or the total return from other underlying assets. A total return swap may be applied to any underlying asset but is most commonly used with equity indices, single stocks, bonds and defined baskets of loans and mortgages. The Fund might enter into a total return swap involving an underlying index or basket of securities to create exposure to a potentially widely diversified range of securities in a single trade. An

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Portfolio composition and other information

index total return swap can be used by the portfolio managers to assume risk, without the complications of buying the component securities from what may not always be the most liquid of markets. In connection with the Fund’s position in a swap contract, the Fund will segregate liquid assets or will otherwise cover its position in accordance with applicable SEC requirements. See “—Asset Segregation” below.

Credit default swaps

A credit default swap is a bilateral contract that enables an investor to buy or sell protection against a defined-issuer credit event. Credit default swaps may require initial premium (discount) payments as well as periodic payments (receipts) related to the interest leg of the swap or to the default of a reference obligation. The Fund may enter into credit default swap agreements either as a buyer or a seller. The Fund may buy protection to attempt to mitigate the risk of default or credit quality deterioration in an individual security or a segment of the fixed income securities market to which it has exposure, or to take a “short” position in individual bonds or market segments which it does not own. The Fund may sell protection in an attempt to gain exposure to the credit quality characteristics of particular bonds or market segments without investing directly in those bonds or market segments. As the buyer of protection in a credit default swap, the Fund would pay a premium (by means of an upfront payment or a periodic stream of payments over the term of the agreement) in return for the right to deliver a referenced bond or group of bonds to the protection seller and receive the full notional or par value (or other agreed upon value) upon a default (or similar event) by the issuer(s), such as a U.S. or foreign corporation, of the underlying referenced obligation(s). If no default occurs, the protection seller would keep the stream of payments and would have no further obligation to the Fund. Thus, the cost to the Fund would be the premium paid with respect to the agreement. If a credit event occurs, however, the Fund may elect to receive the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. The Fund bears the risk that the protection seller may fail to satisfy its payment obligations. If the Fund sells or writes credit default swaps, the Fund will segregate the full notional amount of the payment obligation under the credit default swap that must be paid upon the occurrence of a credit event. See “—Asset Segregation” below.

If the Fund is a seller of protection in a credit default swap and no credit event occurs, the Fund would generally receive an up-front payment or a periodic stream of payments over the term of the swap. If a credit event occurs, however, generally the Fund would have to pay the buyer, such as a U.S. or foreign corporate issuer, the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. As the protection seller, the Fund effectively adds the economic effect of leverage to its portfolio because, in addition to being subject to investment exposure on its total net assets, the Fund is subject to investment exposure on the notional amount of the swap. Thus, the Fund bears the same risk as it would by buying the reference obligation(s) directly, plus the additional risks related to obtaining investment exposure through a derivative instrument discussed below under “—Risks Associated with Swap Transactions.”

Swap options

A swap option is a contract that gives a counterparty the right (but not the obligation), in return for payment of a premium, to enter into a new swap agreement or to shorten, extend, cancel, or otherwise modify an existing swap agreement at some designated future time on specified terms. A cash-settled option on a swap gives the purchaser the right, in return for the premium paid, to receive an amount of cash equal to the value of the underlying swap as of the exercise date. The Fund may write (sell) and purchase put and call swap options. Depending on the terms of the particular option agreement, the

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Portfolio composition and other information

Fund generally would incur a greater degree of risk when it writes a swap option than when it purchases a swap option. When the Fund purchases a swap option, it risks losing only the amount of the premium it has paid should it decide to let the option expire unexercised. However, when the Fund writes a swap option, upon exercise of the option the Fund would become obligated according to the terms of the underlying agreement.

Risks associated with swap transactions

The use of swap transactions is a highly specialized activity which involves strategies and risks different from those associated with ordinary portfolio investment transactions. See “Risks—Portfolio Level Risks—Risk of Swaps and Swap Options.”

Futures and options on futures generally

A futures contract is an agreement between two parties to buy and sell a security, index or interest rate (each a “financial instrument”) for a set price on a future date. Certain futures contracts, such as futures contracts relating to individual securities, call for making or taking delivery of the underlying financial instrument. However, these contracts generally are closed out before delivery by entering into an offsetting purchase or sale of a matching futures contract (same exchange, underlying financial instrument, and delivery month). Other futures contracts, such as futures contracts on interest rates and indices, do not call for making or taking delivery of the underlying financial instrument, but rather are agreements pursuant to which two parties agree to take or make delivery of an amount of cash equal to the difference between the value of the financial instrument at the close of the last trading day of the contract and the price at which the contract was originally written. These contracts also may be settled by entering into an offsetting futures contract.

Unlike when the Fund purchases or sells a security, no price is paid or received by the Fund upon the purchase or sale of a futures contract. Initially, the Fund will be required to deposit with the futures broker, known as a futures commission merchant (“FCM”), an amount of cash or securities equal to a varying specified percentage of the contract amount. This amount is known as initial margin. The margin deposit is intended to ensure completion of the contract. Minimum initial margin requirements are established by the futures exchanges and may be revised. In addition, FCMs may establish margin deposit requirements that are higher than the exchange minimums. Cash held in the margin account generally is not income producing. However, couponbearing securities, such as Treasury securities, held in margin accounts generally will earn income.

Subsequent payments to and from the FCM, called variation margin, will be made on a daily basis as the price of the underlying financial instrument fluctuates, making the futures contract more or less valuable, a process known as marking the contract to market. Changes in variation margin are recorded by the Fund as unrealized gains or losses. At any time prior to expiration of the futures contract, the Fund may elect to close the position by taking an opposite position that will operate to terminate its position in the futures contract. A final determination of variation margin is then made, additional cash is required to be paid by or released to the Fund, and the Fund realizes a gain or loss. In the event of the bankruptcy or insolvency of an FCM that holds margin on behalf of the Fund, the Fund may be entitled to the return of margin owed to it only in proportion to the amount received by the FCM’s other customers, potentially resulting in losses to the Fund. Futures transactions also involve brokerage costs and the Fund may have to segregate additional liquid assets in accordance with applicable SEC requirements. See “—Asset Segregation” below.

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Portfolio composition and other information

A futures option gives the purchaser of such option the right, in return for the premium paid, to assume a long position (call) or short position (put) in a futures contract at a specified exercise price at any time during the period of the option. Upon exercise of a call option, the purchaser acquires a long position in the futures contract and the writer is assigned the opposite short position. Upon the exercise of a put option, the opposite is true.

Options on currencies

The Fund may purchase put and call options on foreign currencies. A foreign currency option provides the option buyer with the right to buy or sell a stated amount of foreign currency at the exercise price at a specified date or during the option period. A call option gives its owner the right, but not the obligation, to buy the currency, while a put option gives its owner the right, but not the obligation, to sell the currency. The option seller (writer) is obligated to fulfill the terms of the option sold if it is exercised. However, either seller or buyer may close its position during the option period in the secondary market for such options at any time prior to expiration.

A foreign currency call option rises in value if the underlying currency appreciates. Conversely, a foreign currency put option rises in value if the underlying currency depreciates. While purchasing a foreign currency option may protect the Fund against an adverse movement in the value of a foreign currency, it would limit the gain which might result from a favorable movement in the value of the currency. For example, if the Fund were holding securities denominated in an appreciating foreign currency and had purchased a foreign currency put to hedge against a decline in the value of the currency, it would not have to exercise its put. In such an event, however, the amount of the Fund’s gain would be offset in part by the premium paid for the option. Similarly, if the Fund entered into a contract to purchase a security denominated in a foreign currency and purchased a foreign currency call to hedge against a rise in the value of the currency between the date of purchase and the settlement date, the Fund would not need to exercise its call if the currency instead depreciated in value. In such a case, the Fund could acquire the amount of foreign currency needed for settlement in the spot market at a lower price than the exercise price of the option.

Forward currency contracts and other foreign currency transactions

The Fund may enter into forward currency contracts. A forward currency contract involves an obligation to purchase or sell a specific currency at a future date, which may be any fixed number of days from the date of the contract agreed upon by the parties, at a price set at the time of the contract. These contracts are traded directly between currency traders (usually large commercial banks) and their customers. Unlike futures contracts, which are standardized contracts, forward contracts can be specifically drawn to meet the needs of the parties that enter into them. The parties to a forward currency contract may agree to offset or terminate the contract before its maturity, or may hold the contract to maturity and complete the contemplated exchange. Because forward contracts are not traded on an exchange, the Fund is subject to the credit and performance risk of the counterparties to such contracts.

The following, among others, are types of currency management strategies involving forward contracts that may be used by the Fund. The Fund also may use currency futures contracts and options thereon, put and call options on foreign currencies and currency swaps for the same purposes.

Position hedges

The Fund could also use forward contracts to lock in the U.S. dollar value of portfolio positions. This is known as a “position hedge.” When the Fund believes that a foreign currency might suffer a substantial

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Portfolio composition and other information

decline against the U.S. dollar, it could enter into a forward contract to sell an amount of that foreign currency approximating the value of some or all of the Fund’s portfolio investments denominated in that foreign currency. When the Fund believes that the U.S. dollar might suffer a substantial decline against a foreign currency, it could enter into a forward contract to buy that foreign currency for a fixed dollar amount. Alternatively, the Fund could enter into a forward contract to sell a different foreign currency for a fixed U.S. dollar amount if the Fund’s portfolio managers believe that the U.S. dollar value of that foreign currency will fall whenever there is a decline in the U.S. dollar value of the currency in which portfolio investments of the Fund are denominated. This is referred to as a “cross hedge.”

Shifting currency exposure

The Fund may also enter into forward contracts to shift its investment exposure from one currency into another. This may include shifting exposure from U.S. dollars to foreign currency or from one foreign currency to another foreign currency. This strategy tends to limit exposure to the currency sold, and increase exposure to the currency that is purchased, much as if the Fund had sold an investment denominated in one currency and purchased an equivalent investment denominated in another currency.

OTHER INVESTMENT COMPANIES

The Fund may invest in securities of other investment companies such as, among others, ETFs, subject to limitations imposed by the 1940 Act, rules promulgated thereunder and exemptive orders issued by the SEC. The Fund generally expects that it may invest in other investment companies during periods when it has large amounts of uninvested cash, such as during periods when there is a shortage of attractive securities of the types in which the Fund may invest directly available in the market. As an investor in an investment company, the Fund will bear its ratable share of that investment company’s expenses, and would remain subject to payment of the Fund’s advisory and administrative fees with respect to assets so invested. Common Shareholders would therefore be subject to duplicative expenses to the extent the Fund invests in other investment companies. Nuveen Asset Management will take expenses into account when evaluating the investment merits of an investment in the investment company relative to available securities of the types in which the Fund may invest directly. In addition, the securities of other investment companies may be leveraged and therefore will be subject to leverage risks.

ASSET SEGREGATION

As a closed-end investment company registered with the SEC, the Fund is subject to the federal securities laws, including the 1940 Act, the rules thereunder, and various interpretive positions of the SEC and its staff. Under current laws, rules and positions, the Fund must maintain liquid assets (often referred to as “asset segregation”), or engage in other SEC staff-approved measures, to “cover” open positions with respect to certain kinds of derivative instruments and financial agreements (such as reverse repurchase agreements).

Generally, the Fund will maintain an amount of liquid assets with its custodian in an amount at least equal to the current amount of its obligations under derivative instruments and financial agreements, in accordance with SEC guidance. However, the Fund also may “cover” certain obligations by other means such as through ownership of the underlying investment or financial instrument. The Fund also may enter into offsetting transactions with respect to certain instruments consistent with existing SEC staff guidance so that its combined position, coupled with any liquid assets maintained by its custodian, equals its net outstanding obligation in related derivatives or financial agreements.

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Portfolio composition and other information

The SEC recently adopted new Rule 18f-4 under the 1940 Act, which imposes limits on the amount of derivatives a fund can enter into and replaces the asset segregation framework previously used by funds to comply with Section 18 of the 1940 Act, among other requirements. The Fund will comply with the new rule’s requirements on or before the SEC’s compliance date in 2022. See “Risks—Portfolio Level Risks—Derivatives Risk.”

The Fund reserves the right to modify its policies in the future to comply with any changes in the positions from time to time articulated by the SEC or its staff.

TEMPORARY DEFENSIVE INVESTMENTS

During temporary defensive periods, the period in which the net proceeds of this offering of Common Shares are first being invested (the “invest-up period”), the “wind-up” period (the approximately six month period during which the Fund is transitioning its portfolio as the Fund’s Termination Date approaches) during which the Fund is transitioning its portfolio as the Termination Date approaches or the period in which the Fund’s assets are being liquidated in anticipation of the Fund’s termination, the Fund may deviate from its investment policies and objective. During such periods, the Fund may invest up to 100% of its Managed Assets in short-term investments, including high quality, short-term securities or may invest in short-, intermediate-, or long-term U.S. Treasury securities. During the invest-up period, the Fund may also purchase securities issued by ETFs that invest primarily in fixed-income investments of the types in which the Fund may invest directly. Any such investments in ETFs will be in compliance with the limitations imposed by the 1940 Act, the rules promulgated thereunder, or pursuant to any exemptive relief obtained thereunder. There can be no assurance that such techniques will be successful. Accordingly, during such periods, the Fund may not achieve its investment objective.

PORTFOLIO TURNOVER

It is not the Fund’s policy to engage in transactions with the objective of seeking profits from short-term trading. However, the Fund may engage in active and frequent trading when Nuveen Fund Advisors or Nuveen Asset Management believes such trading is, in light of prevailing economic and market circumstances, in the best interests of the Fund’s shareholders. Although the Fund cannot predict its annual portfolio turnover rate, it is generally not expected to exceed 75% under normal circumstances. Frequent trading also increases transaction costs, which could detract from the Fund’s performance, and may result in the realization of net short-term capital gains by the Fund which, when distributed to Common Shareholders, will be treated as ordinary income. See “Tax Matters” and “Risks—Fund Level Risks—Frequent Trading Risk.”

Leverage

The Fund anticipates using leverage to pursue its investment objective. The Fund may use leverage to the extent permitted under the 1940 Act. The Fund may source leverage initially and throughout the life of the Fund through a number of methods including through borrowings, issuing Preferred Shares, the issuance of debt securities, entering into reverse repurchase agreements (effectively a borrowing), and investing in residual interest certificates of tender option bond trusts, also called inverse floating rate securities, that have the economic effect of leverage because the Fund’s investment exposure to the underlying bonds held by the trust have been effectively financed by the trust’s issuance of floating rate certificates. In addition, the Fund may use derivatives that may have the economic effect of leverage. The sources of leverage will vary depending on market conditions. See “Leverage,” “ Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk,” and “Portfolio Composition and Other Information—Derivatives.” The Fund anticipates using such leverage in an aggregate amount equal to approximately

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Leverage

35% of the Fund’s Managed Assets, if current market conditions persist. The Fund may employ leverage through the issuance of Preferred Shares within 12 months after the completion of this offering, but may do so only if the Board of Trustees determines it to be in the best interests of Common Shareholders.

The Fund may use derivatives, such as interest rate swaps with varying terms, in order to hedge duration risk or manage the interest rate expense associated with all or a portion of its leverage. Interest rate swaps are bi-lateral agreements whereby parties agree to exchange future payments, typically based upon the differential of a fixed rate and a variable rate, on a specified notional amount. Interest rate swaps can enable the Fund to effectively convert its variable leverage expense to fixed, or vice-versa. For example, if the Fund issues leverage having a short-term floating rate of interest, the Fund could use interest rate swaps to hedge against a rise in the short-term benchmark interest rates associated with its outstanding leverage. In doing so, the Fund would seek to achieve lower leverage costs, and thereby enhance Common Share distributions, over an extended period, which would be the result if short-term market interest rates on average exceed the fixed interest rate over the term of the swap. To the extent the fixed swap rate is greater than short-term market interest rates on average over the period, overall costs associated with leverage will be greater (and thereby reduce distributions to Common Shareholders) than if the Fund had not entered into the interest rate swap(s). See “Portfolio Composition and Other Information—Derivatives.”

The Fund also may borrow for temporary purposes as permitted by the 1940 Act.

In pursuit of its investment objective, the Fund has the ability to actively and dynamically reduce or increase the amount and type of leverage based upon changes in market conditions, composition of the Fund’s holdings and remaining time until the Fund’s Termination Date. The Fund’s leverage ratio will vary from time to time based upon such changes in the amount of leverage used and variations in the value of the Fund’s holdings. So long as the net income received from the Fund’s investments purchased with leverage proceeds exceeds the then current expense of any leverage, the investment of the proceeds of leverage will generate more net income than if the Fund had not leveraged itself. Under these circumstances, the excess net income will be available to pay higher distributions to Common Shareholders. However, if the net income received from the Fund’s portfolio investments purchased with the proceeds of leverage is less than the current expense of any leverage, the Fund may be required to utilize other Fund assets to make interest or dividend payments on its leveraging instruments which may result in a decline in Common Share NAV and reduced net investment income available for distribution to Common Shareholders.

The Fund pays a management fee to Nuveen Fund Advisors (which in turn pays a portion of such fee to Nuveen Asset Management) based on a percentage of Managed Assets. Managed Assets include the proceeds realized and managed from the Fund’s use of most types of leverage (excluding the leverage exposure attributable to the use of futures, swaps and similar derivatives). Because Managed Assets include the Fund’s net assets as well as assets that are attributable to the Fund’s investment of the proceeds of its leverage, it is anticipated that the Fund’s Managed Assets will be greater than its net assets. Nuveen Fund Advisors and Nuveen Asset Management will be responsible for using leverage to pursue the Fund’s investment objective. Nuveen Fund Advisors and Nuveen Asset Management will base their decision regarding whether and how much leverage to use for the Fund, and the terms of that leverage, on their assessment of whether such use of leverage is in the best interests of the Fund. However, a decision to employ or increase leverage will have the effect, all other things being equal, of increasing Managed Assets and in turn Nuveen Fund Advisors’ and Nuveen Asset Management’s management fees. Thus, Nuveen Fund Advisors and Nuveen Asset Management may have a conflict of interest in determining whether to use or increase leverage. Nuveen Fund Advisors and Nuveen Asset Management will seek to manage that potential conflict by using leverage only when they determine that

65

Leverage

it would be in the best interests of the Fund and its Common Shareholders, and by periodically reviewing with the Board of Trustees the Fund’s performance and the Fund’s degree of overall use of leverage and the impact of the use of leverage on that performance.

The Fund may issue “senior securities” as defined under the 1940 Act. The 1940 Act generally defines a “senior security” as any bond, debenture, note, or similar obligation or instrument constituting a security and evidencing indebtedness, and any stock of a class having priority over any other class as to distribution of assets or payment of dividends; however, the term does not include any promissory note or other evidence of indebtedness issued in consideration of any loan, extension, or renewal thereof, made for temporary purposes and in an amount not exceeding five percent of the value of the Fund’s total assets. A loan shall be presumed to be for temporary purposes if it is repaid within 60 days and is not extended or renewed.

Under the 1940 Act, the Fund is not permitted to issue “senior securities” that are Preferred Shares if, immediately after the issuance of Preferred Shares, the asset coverage ratio with respect to such Preferred Shares would be less than 200%. With respect to any such Preferred Shares, asset coverage means the ratio which the value of the total assets of the Fund, less all liabilities and indebtedness not represented by senior securities, bears to the aggregate amount of senior securities representing indebtedness of the Fund plus the aggregate liquidation preference of such Preferred Shares.

Under the 1940 Act, the Fund is not permitted to issue “senior securities representing indebtedness” if, immediately after the issuance of such senior securities representing indebtedness, the asset coverage ratio with respect to such senior securities would be less than 300%. “Senior securities representing indebtedness” include borrowings (including loans from financial institutions) and debt securities. “Senior securities representing indebtedness” also include other derivative investments or transactions, such as reverse repurchase agreements, to the extent the Fund has not fully covered, segregated or earmarked cash or liquid assets in accordance with the 1940 Act, the rules thereunder, and applicable positions of the SEC and its staff. With respect to any such senior securities representing debt, asset coverage means the ratio which the value of the total assets of the Fund, less all liabilities and indebtedness not represented by senior securities (as defined in the 1940 Act), bears to the aggregate amount of such borrowing represented by senior securities issued by the Fund.

If the Fund issues senior securities and the asset coverage with respect to such senior securities declines below the required ratios discussed above (as a result of market fluctuations or otherwise), the Fund may sell portfolio securities when it may be disadvantageous to do so.

Certain types of leverage used by the Fund may result in the Fund being subject to certain covenants, asset coverage or other portfolio composition limits by its lenders, debt or preferred securities purchasers, rating agencies that may rate the debt or preferred securities, or reverse repurchase counterparties. Such limitations may be more stringent than those imposed by the 1940 Act and may impact whether the Fund is able to maintain its desired amount of leverage. At this time Nuveen Fund Advisors does not believe that any such potential investment limitations will impede it from managing the Fund’s portfolio in accordance with its investment objective and policies.

Utilization of leverage is a speculative investment technique and involves certain risks to the Common Shareholders, including increased variability of the Fund’s net income, distributions and NAV in relation to market changes. See “Risks—Fund Level Risks—Leverage Risk.” There is no assurance that the Fund will use leverage or that the Fund’s use of leverage will work as planned or achieve its goals.

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Leverage

EFFECTS OF LEVERAGE

Assuming the utilization of leverage in an aggregate amount of approximately 35% of the Fund’s Managed Assets, at an interest and/or dividend rate of 0.85% payable on such leverage, the income generated by the Fund’s portfolio (net of non-leverage expenses) must exceed 0.30% in order to cover such interest and/or dividend payments and other expenses. Of course, these numbers are merely estimates, used for illustration. Actual interest and/or dividend rates may vary frequently and may be significantly higher or lower than the rate estimated above.

The following table is furnished in response to requirements of the SEC. It is designed to illustrate the effect of leverage on Common Share total return, assuming investment portfolio total returns (comprised of income and changes in the value of investments held in the Fund’s portfolio) of –10%, –5%, 0%, 5% and 10%. These assumed investment portfolio returns are hypothetical figures and are not necessarily indicative of the investment portfolio returns experienced or expected to be experienced by the Fund. Actual returns may be greater or less than those shown below. See “Risks.” The table further reflects the use of leverage representing 35% of the Fund’s Managed Assets, net of expenses, and the Fund’s currently projected annual interest rate and/or dividend on its leverage of 0.85%.

Common Share Total Return is composed of two elements: the Common Share dividends paid by the Fund (the amount of which is largely determined by the net investment income of the Fund after paying interest and/or dividends on its leverage) and gains or losses on the value of the investments the Fund owns. The table required by SEC rules above assumes that the Fund is more likely to suffer capital losses than to enjoy capital appreciation. For example, to assume a total return of 0% the Fund must assume that the interest it receives on its portfolio investments is entirely offset by losses in the value of those investments.

Risks

The Fund is a diversified, closed-end management investment company designed primarily as a long-term investment and not as a trading vehicle. The Fund is not intended to be a complete investment program and, due to the uncertainty inherent in all investments, there can be no assurance that the Fund will achieve its investment objective. The Fund’s performance and the value of its investments will vary in response to changes in interest rates, inflation, the financial condition of an investment’s issuer, ratings on an investment, perceptions of the issuer, and other market factors. Your Common Shares at any point in time may be worth less than your original investment, even after taking into account the reinvestment of Fund dividends and distributions.

The risks have been divided into (i) Portfolio Level Risks, (ii) Fund Level Risks, and (iii) Other Risks.

PORTFOLIO LEVEL RISKS

Impact Criteria and ESG criteria investing risk

Because the Impact Criteria and/or Nuveen’s ESG investment criteria may exclude investments of certain issuers for non-financial reasons, the Fund may forgo some market opportunities available to funds that do not use these criteria. This may cause the Fund to underperform the market as a whole or other funds that do not use an Impact Criteria or ESG investment strategy or that use a different methodology or

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Risks

different factors to determine an investment’s impact and/or Nuveen’s ESG investment criteria. In addition, there is a risk that the companies identified by the Impact Criteria or ESG investment criteria do not operate as expected when addressing social and environmental impact and ESG issues. A company’s social and environmental impact and ESG performance or Nuveen Asset Management’s assessment of a company’s social and environmental impact and ESG performance could vary over time, which could cause the Fund to be temporarily invested in companies that do not comply with the Fund’s approach towards considering Impact Criteria or ESG investment criteria. There are significant differences in interpretations of what it means for a company to have positive Impact Criteria or ESG investment criteria. While Nuveen Asset Management believes its evaluation of Impact Criteria and/or ESG investment criteria is reasonable, the portfolio decisions it makes may differ with other investors’ or advisers’ views. In making investment decisions, Nuveen Asset Management relies on information and data that could be incomplete or erroneous, which could cause Nuveen Asset Management to incorrectly assess a company’s Impact Criteria and/or ESG investment criteria. The third-party data providers may differ in the data they provide for a given investment or between industries, or may only take into account one of many ESG-related components of a company. Accordingly, the information used by Nuveen Asset Management to evaluate the ESG criteria of the Fund’s investments may not be complete or accurate, and may vary across providers and issuers, as ESG is not a uniformly defined characteristic. Furthermore, data availability and reporting with respect to Impact Criteria or the ESG investment criteria may not always be available or may become unreliable.

Active management risk

The Fund is actively managed and depends heavily on Nuveen Asset Management’s judgment about markets, interest rates or the attractiveness, relative values, liquidity, or potential appreciation of particular investments made for the Fund’s portfolio. The Fund could experience losses if these judgments prove to be incorrect. Additionally, legislative, regulatory, or tax developments may adversely affect management of the Fund and, therefore, the ability of the Fund to achieve its investment objective.

Debt securities risk

Issuers of debt instruments in which the Fund may invest may default on their obligations to pay principal or interest when due. This non-payment would result in a reduction of income to the Fund, a reduction in the value of a debt instrument experiencing non-payment and, potentially, a decrease in the NAV of the Fund. There can be no assurance that liquidation of collateral would satisfy the issuer’s obligation in the event of non-payment of scheduled interest or principal or that such collateral could be readily liquidated. In the event of bankruptcy of an issuer, the Fund could experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a security. To the extent that the credit rating assigned to a security in the Fund’s portfolio is downgraded, the market price and liquidity of such security may be adversely affected. When market interest rates rise, the market value of such instruments generally will fall.

Additionally, the Fund may be exposed to certain debt securities risks through its sukuk investments. Most sukuk do not provide investors with bona fide legal ownership of the underlying assets, and the periodic and final payments to sukuk investors are not generally linked to the value of the underlying assets. As a result, most sukuk are considered unsecured obligations whose risks and returns are similar to those of conventional debt instruments. Investors typically have no direct recourse to the underlying assets and do not have a secured claim against the obligor. In addition, investors’ ability to pursue and enforce actions with respect to these payment obligations or to otherwise enforce the terms of the sukuk, restructure the sukuk, obtain a judgment in a court of competent jurisdiction, and/or attach assets of the

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Risks

obligor may be limited. The structural complexity of sukuk and the immaturity of the sukuk market increase the potential risks of investing in sukuk, including operational, legal, and investment risks. Sukuk can be less liquid than other types of investments and it may be difficult at times to invest in or dispose of sukuk. In addition, evolving interpretations of Sharia law by courts or Islamic scholars on sukuk structures and sukuk transferability, or a determination subsequent to the issuance of the sukuk by some Islamic scholars that certain sukuk do not comply with Sharia law and its investment principles, could have a dramatic adverse effect on the price and liquidity of a particular sukuk or the sukuk market in general.

Below investment grade risk

Instruments of below investment grade quality are regarded as having predominately speculative characteristics with respect to the issuer’s capacity to pay interest, dividends and repay principal, and are commonly referred to as “high yield” or “junk,” which implies higher price volatility and default risk than investment grade instruments of comparable terms and duration. Issuers of lower grade instruments may be highly leveraged and may not have available to them more traditional methods of financing. The prices of these lower grade instruments are typically more sensitive to negative developments, such as a decline in the issuer’s revenues or a general economic downturn, than are the prices of higher grade instruments.

If a below investment grade instrument goes into default, or its issuer enters bankruptcy, it might be difficult to sell that instrument in a timely manner at a reasonable price.

The secondary market for lower grade instruments may not be as liquid as the secondary market for more highly rated instruments, a factor which may have an adverse effect on the Fund’s ability to dispose of a particular instrument. There are fewer dealers in the market for lower grade instruments than for investment grade obligations. The prices quoted by different dealers for lower grade instruments may vary significantly and the spread between the bid and ask price for such instruments is generally much larger than for higher quality instruments. Under adverse market or economic conditions, the secondary market for lower grade instruments could contract further, independent of any specific adverse changes in the condition of a particular issuer, and these instruments may become illiquid. As a result, the Fund could find it more difficult to sell these instruments or may be able to sell the instruments only at prices lower than if such instruments were widely traded. Prices realized upon the sale of such lower rated or unrated instruments, under these circumstances, may be less than the prices used in calculating the Fund’s NAV.

For these reasons, an investment in the Fund, compared with a portfolio consisting solely of investment grade instruments, may experience the following:

In the event that the Fund disposes of a portfolio investment subsequent to its being downgraded, the Fund may experience a greater loss than if such investment had been sold prior to such downgrade.

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Risks

Unrated investments risk

The Fund may purchase investments that are not rated by any rating organization. Unrated investments determined by Nuveen Asset Management to be of comparable quality to rated investments which the Fund may purchase may pay a higher interest rate than such rated investments and be subject to a greater risk of illiquidity or price changes. Less public information is typically available about unrated investments or issuers than rated investments or issuers. Nuveen Asset Management may, after assessing such investments’ credit quality, internally assign ratings to certain of those securities in categories similar to those of rating organizations. Some unrated investments may not have an active trading market or may be difficult to value, which means the Fund might have difficulty selling them promptly at an acceptable price. To the extent that the Fund invests in unrated investments, the Fund’s ability to achieve its investment objective will be more dependent on Nuveen Asset Management’s credit analysis than would be the case when the Fund invests in rated investments.

Restricted and illiquid investments risk

Illiquid investments are investments that are not readily marketable. These investments may include restricted investments, including Rule 144A securities, which can not be resold to the public without an effective registration statement under the 1933 Act, or, if they are unregistered, may be sold only in a privately negotiated transaction or pursuant to an exemption from registration. The Fund may not be able to readily dispose of such investments at prices that approximate those at which the Fund could sell such investments if they were more widely traded and, as a result of such illiquidity, the Fund may have to sell other investments or engage in borrowing transactions if necessary to raise cash to meet its obligations. Limited liquidity can also affect the market price of investments, thereby adversely affecting the Fund’s NAV and ability to make dividend distributions. The financial markets in general have in recent years experienced periods of extreme secondary market supply and demand imbalance, resulting in a loss of liquidity during which market prices were suddenly and substantially below traditional measures of intrinsic value. During such periods, some investments could be sold only at arbitrary prices and with substantial losses. Periods of such market dislocation may occur again at any time.

CMBS and MBS risk

CMBS and MBS, including collateralized debt obligations and collateralized mortgage obligations, differ from conventional debt securities because principal is paid back over the life of the security rather than at maturity. CMBS and MBS are subject to prepayment or call risk, which is the risk that a borrower’s payments may be received earlier than expected due to changes in prepayment rates on underlying loans. Faster prepayments often happen when interest rates are falling. As a result, the Fund may reinvest these early payments at lower interest rates, thereby reducing the Fund’s income. CMBS and MBS also are subject to extension risk. An unexpected rise in interest rates could reduce the rate of prepayments and extend the life of the CMBS and MBS, causing the price of the CMBS and MBS and the Fund’s share price to fall and would make the CMBS and MBS more sensitive to interest rate changes. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool will adversely affect the value of CMBS and MBS and will result in losses to the Fund. Privately issued mortgage-related securities are not subject to the same underwriting requirements for the underlying mortgages that are applicable to those mortgage-related securities that have government or government-sponsored entity guarantee. As a result, the mortgage loans underlying privately issued mortgage-related securities may, and frequently do, have less favorable collateral, credit risk or other underwriting characteristics than government or government-sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose and borrower characteristics.

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Asset-backed securities risk

ABS involve certain risks in addition to those presented by MBS. There is the possibility that recoveries on the underlying collateral may not, in some cases, be available to support payments on these securities. Relative to MBS, ABS may provide the Fund with a less effective security interest in the underlying collateral and are more dependent on the borrower’s ability to pay. If many borrowers on the underlying loans default, losses could exceed the credit enhancement level and result in losses to investors in an ABS transaction. Finally, ABS have structure risk due to a unique characteristic known as early amortization, or early payout, risk. Built into the structure of most ABS are triggers for early payout, designed to protect investors from losses. These triggers are unique to each transaction and can include a significant rise in defaults on the underlying loans, a sharp drop in the credit enhancement level or the bankruptcy of the originator. Once early amortization begins, all incoming loan payments (after expenses are paid) are used to pay investors as quickly as possible based upon a predetermined priority of payment. As a result, proceeds that would otherwise be distributed to holders of a junior tranche may be diverted to pay down more senior tranches.

The collateral underlying ABS may constitute assets related to a wide range of industries and sectors, such as credit card and automobile receivables. Credit card receivables are generally unsecured and the debtors are entitled to the protection of a number of state and federal consumer credit laws, many of which give debtors the right to set off certain amounts owed on the credit cards, thereby reducing the balance due. The Credit CARD Act of 2009 imposes new regulations on the ability of credit card issuers to adjust the interest rates and exercise various other rights with respect to indebtedness extended through credit cards. The Fund and Nuveen Asset Management cannot predict what effect, if any, such regulations might have on the market for ABS and such regulations may adversely affect the value of ABS owned by the Fund. Most issuers of automobile receivables permit the servicers to retain possession of the underlying obligations. If the servicer were to sell these obligations to another party, there is a risk that the purchaser would acquire an interest superior to that of the holders of the related automobile receivables. In addition, because of the large number of vehicles involved in a typical issuance and technical requirements under state laws, the trustee for the holders of the automobile receivables may not have an effective security interest in all of the obligations backing such receivables. If the economy of the United States deteriorates, defaults on securities backed by credit card, automobile and other receivables may increase, which may adversely affect the value of any ABS owned by Fund. There is the possibility that recoveries on the underlying collateral may not, in some cases, be available to support payments on these securities. In recent years, certain automobile manufacturers have been granted access to emergency loans from the U.S. government and have experienced bankruptcy. As a result of these events, the value of securities backed by receivables from the sale or lease of automobiles may be adversely affected.

Some ABS, particularly home equity loan transactions, are subject to interest rate risk and prepayment risk. A change in interest rates can affect the pace of payments on the underlying loans, which in turn, affects total return on the securities.

Municipal securities market risk

Investing in the municipal securities market involves certain risks. The municipal market is one in which dealer firms make markets in bonds on a principal basis using their proprietary capital, and during the market turmoil in 2008-2009 these firms’ capital was severely constrained. As a result, some firms were unwilling to commit their capital to purchase and to serve as a dealer for municipal bonds. The amount of public information available about the municipal securities in the Fund’s portfolio is generally less than that for corporate equities or bonds, and the investment performance of the Fund may therefore be more dependent on the analytical abilities of Nuveen Asset Management than if the Fund were a stock fund or taxable bond fund. In addition, the market for below investment grade municipal securities has

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experienced in the past, and may experience in the future, periods of significant volatility, which could negatively impact the value of the municipal securities in the Fund’s portfolio and the market price of the Common Shares.

The ability of municipal issuers to make timely payments of interest and principal may be diminished during general economic downturns and as governmental cost burdens are reallocated among federal, state and local governments. In addition, laws enacted in the future by Congress or state legislatures or referenda could extend the time for payment of principal and/or interest, or impose other constraints on enforcement of such obligations, or on the ability of municipalities to levy taxes. Further, some state and local governments have been and in the future may be subject to direct ballot referenda that could limit their financial flexibility, or their ability to levy taxes or raise revenues, which may adversely affect the marketability of notes and bonds issued by those state and local governments. Issuers of municipal securities might seek protection under the bankruptcy laws. In the event of bankruptcy of such an issuer, the Fund could experience delays in collecting principal and interest and the Fund may not, in all circumstances, be able to collect all principal and interest to which it is entitled. To enforce its rights in the event of a default in the payment of interest or repayment of principal, or both, the Fund may take possession of and manage the assets securing the issuer’s obligations on such securities, which may increase the Fund’s operating expenses. Any income derived from the Fund’s ownership or operation of such assets may not be tax-exempt.

The outbreak of the novel coronavirus, known as COVID-19, in December 2019, and the resulting pandemic, has adversely impacted global commercial activity and has contributed to significant volatility in certain financial markets, including the municipal bond market. See “—Other Risks—Global Economic Risk.” Due to the COVID-19 pandemic, the risks of the municipal securities market have been magnified. These risks have had, and will continue to have, a material adverse impact on local economies and therefore on the governments in those localities. These risks may also adversely affect several sectors of the municipal bond market, such as retirement facilities, transportation facilities such as airports, hospitals and colleges, among many others. All this has adversely affected the municipal securities market, and may continue to do so for an extended period.

Foreign/emerging markets issuer risk

Investments in foreign issuers involve special risks not presented by investments in U.S. issuers, including the following: (i) less publicly available information about foreign issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; (ii) many foreign markets are smaller, less liquid and more volatile; (iii) potential adverse effects of fluctuations in currency exchange rates or controls on the value of the Fund’s investments; (iv) the economies of foreign countries may grow at slower rates than expected or may experience a downturn or recession; (v) the impact of economic, political, social or diplomatic events; (vi) possible seizure of a company’s assets; (vii) restrictions imposed by foreign countries limiting the ability of foreign issuers to make payments of principal and/or interest due to blockages of foreign currency exchanges or otherwise and (viii) withholding and other foreign taxes may decrease the Fund’s return.

The Fund will invest in emerging market debt securities. Risks of investing in investments of emerging markets issuers include: smaller market capitalization of securities markets, which may suffer periods of relative illiquidity; significant price volatility; restrictions on foreign investment; and possible restrictions on repatriation of investment income and capital. In addition, foreign investors may be required to register the proceeds of sales; and future economic or political crises could lead to price controls, forced mergers, expropriation or confiscatory taxation, seizure, nationalization, or creation of government monopolies. Inflation and rapid fluctuations in inflation rates have had, and may continue to have, negative effects on

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the economies and securities markets of certain emerging market countries. Certain emerging markets also may face other significant internal or external risks, including a heightened risk of war, and ethnic, religious and racial conflicts. In addition, governments in many emerging market countries participate to a significant degree in their economies and securities markets, which may impair investment and economic growth, and which may in turn diminish the value of the companies in those markets.

In addition, the Fund may invest in “frontier market” debt securities, which the Fund considers to be a sub-set of emerging market debt securities. The Fund considers a “frontier market” to be a market that is generally smaller and less mature than larger emerging markets, but is nonetheless accessible to foreign investment through sovereign and/or corporate bonds issued in hard currency like the U.S. dollar. Frontier market economies and capital markets are typically at an earlier stage of development and institutions and macro-economic policy formulation is also less mature in comparison to larger emerging market countries. While frontier markets have much in common, there are also significant differences when it comes to their political and policy environments, natural resource base, and economic structures and cycles. Participants in the fixed-income markets, unlike participants in the equity markets, generally consider frontier economies to be a sub-category of emerging economies. Countries frequently deemed frontier markets are included in common emerging market debt benchmarks such as the EMBI, where such markets currently account for over half the countries in the index and nearly a third of its total market weighted capitalization. Furthermore, inclusion criteria remains the same for a frontier versus non-frontier market in the broad EMBI-GD and is based on the same liquidity and minimum issuance criteria as any other emerging market country. All things considered, risks are magnified in frontier markets which are the result of: potential for extreme price volatility and illiquidity in frontier markets; government ownership or control of parts of private sector and of certain companies; trade barriers, exchange controls, managed adjustments in relative currency values and other protectionist measures imposed or negotiated by frontier market countries or their trading partners; and the relatively new and unsettled securities laws in many frontier market countries.

Additionally, the Fund may be exposed to certain debt securities risks through its sukuk investments. Most sukuk do not provide investors with bona fide legal ownership of the underlying assets, and the periodic and final payments to sukuk investors are not generally linked to the value of the underlying assets. As a result, most sukuk are considered unsecured obligations whose risks and returns are similar to those of conventional debt instruments. Investors typically have no direct recourse to the underlying assets and do not have a secured claim against the obligor. In addition, investors’ ability to pursue and enforce actions with respect to these payment obligations or to otherwise enforce the terms of the sukuk, restructure the sukuk, obtain a judgment in a court of competent jurisdiction, and/or attach assets of the obligor may be limited.

The structural complexity of sukuk and the immaturity of the sukuk market increase the potential risks of investing in sukuk, including operational, legal, and investment risks. Sukuk can be less liquid than other types of investments and it may be difficult at times to invest in or dispose of sukuk. In addition, evolving interpretations of Sharia law by courts or Islamic scholars on sukuk structures and sukuk transferability, or a determination subsequent to the issuance of the sukuk by some Islamic scholars that certain sukuk do not comply with Sharia law and its investment principles, could have a dramatic adverse effect on the price and liquidity of a particular sukuk or the sukuk market in general.

Investments in foreign issuers involve special risks not presented by investments in U.S. issuers, including the following: less publicly available information about foreign issuers or markets due to less rigorous disclosure or accounting standards or regulatory practices; many foreign markets are smaller, less liquid and more volatile; potential adverse effects of fluctuations in currency exchange rates or controls on the value of the Fund’s investments; the economies of foreign countries may grow at slower rates than

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Risks

expected or may experience a downturn or recession; the impact of economic, political, social or diplomatic events; possible seizure of a company’s assets; and withholding and other foreign taxes may decrease the Fund’s return. These risks are more pronounced to the extent that the Fund invests a significant amount of its assets in companies located in one region and to the extent that the Fund invests in issuers in emerging markets. In addition, economic, political and social developments may significantly disrupt the financial markets or interfere with the Fund’s ability to enforce its rights against foreign sovereign issuers.

The Fund’s income from foreign issuers may be subject to foreign withholding taxes. In some countries, the Fund also may be subject to taxes on trading profits and, on certain securities transactions, transfer or stamp duties tax. To the extent foreign income taxes are paid by the Fund, U.S. shareholders may be entitled to a credit or deduction for U.S. federal income tax purposes.

Sovereign government and supranational debt risk

Investments in sovereign debt, including supranational debt, involve special risks. Foreign governmental issuers of debt or the governmental authorities that control the repayment of the debt may be unable or unwilling to repay principal or pay interest when due. In the event of default, there may be limited or no legal recourse in that, generally, remedies for defaults must be pursued in the courts of the defaulting party. Political conditions, especially a sovereign entity’s willingness to meet the terms of its debt obligations, are of considerable significance. The ability of a foreign sovereign issuer, especially an emerging market country, to make timely payments on its debt obligations will also be strongly influenced by the sovereign issuer’s balance of payments, including export performance, its access to international credit facilities and investments, fluctuations of interest rates and the extent of its foreign reserves. A country whose exports are concentrated in a few commodities or whose economy depends on certain strategic imports could be vulnerable to fluctuations in international prices of these commodities or imports. If a sovereign issuer cannot generate sufficient earnings from foreign trade to service its external debt, it may need to depend on continuing loans and aid from foreign governments, commercial banks, and multinational organizations. The cost of servicing external debt will also generally be adversely affected by rising international interest rates, as many external debt obligations bear interest at rates which are adjusted based upon international interest rates. Foreign investment in certain sovereign debt is restricted or controlled to varying degrees, including requiring governmental approval for the repatriation of income, capital or proceeds of sales by foreign investors. There are no bankruptcy proceedings similar to those in the U.S. by which defaulted sovereign debt may be collected.

Foreign currency risk 

Because the Fund may invest in investments denominated or quoted in currencies other than the U.S. dollar, changes in foreign currency exchange rates may affect the value of investments held by the Fund and the unrealized appreciation or depreciation of investments. Currencies of certain countries may be volatile and therefore may affect the value of investments denominated in such currencies, which means that the Fund’s NAV could decline as a result of changes in the exchange rates between foreign currencies and the U.S. dollar. In addition, certain countries, particularly emerging market countries, may impose foreign currency exchange controls or other restrictions on the transferability, repatriation or convertibility of currency.

U.S. government securities risk

U.S. government securities are guaranteed only as to the timely payment of interest and the payment of principal when held to maturity. Accordingly, the current market values for these securities will fluctuate

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with changes in interest rates. Securities issued or guaranteed by U.S. government agencies and instrumentalities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. government. No assurance can be given that the U.S. government will provide financial support to its agencies and instrumentalities if it is not obligated by law to do so.

Loan risk

The lack of an active trading market for certain loans may impair the ability of the Fund to realize full value in the event of the need to sell a loan and may make it difficult to value such loans. Portfolio transactions in loans may settle in as short as seven days but typically can take up to two or three weeks, and in some cases much longer. As a result of these extended settlement periods, the Fund may incur losses if it is required to sell other investments or temporarily borrow to meet its cash needs, including satisfying redemption requests. The risks associated with unsecured loans, which are not backed by a security interest in any specific collateral, are higher than those for comparable loans that are secured by specific collateral. For secured loans, there is a risk that the value of any collateral securing a loan in which the Fund has an interest may decline and that the collateral may not be sufficient to cover the amount owed on the loan. Interests in loans made to finance highly leveraged companies or transactions such as corporate acquisitions may be especially vulnerable to adverse changes in economic or market conditions. Loans may have restrictive covenants limiting the ability of a borrower to further encumber its assets. However, in periods of high demand by lenders like the Fund for loan investments, borrowers may limit these covenants and weaken a lender’s ability to access collateral securing the loan; reprice the credit risk associated with the borrower; and mitigate potential loss. The Fund may experience relatively greater realized or unrealized losses or delays and expenses in enforcing its rights with respect to loans with fewer restrictive covenants. Additionally, loans may not be considered “securities” and, as a result, the Fund may not be entitled to rely on the anti-fraud protections of the securities laws. Because junior loans have a lower place in an issuer’s capital structure and may be unsecured, junior loans involve a higher degree of overall risk than senior loans of the issuer. The Fund’s investments in floating rate loans that pay interest based on LIBOR may experience increased volatility and/or illiquidity during the transition away from LIBOR, which is scheduled to be phased out by the end of 2021.

Senior loan risk

Senior loans hold the highest priority in the capital structure of a business entity, are typically secured with specific collateral and have a claim on the assets and/or stock of the Borrower that is senior to that held by subordinated debt holders and stockholders of the Borrower. Senior loans that the Fund intends to invest in are usually rated below investment grade, and share the same risks of other below investment grade debt instruments.

Although the Fund may invest in senior loans that are secured by specific collateral, there can be no assurance the liquidation of such collateral would satisfy a Borrower’s obligation to the Fund in the event of Borrower default or that such collateral could be readily liquidated under such circumstances. If the terms of a senior loan do not require the Borrower to pledge additional collateral in the event of a decline in the value of the already pledged collateral, the Fund will be exposed to the risk that the value of the collateral will not at all times equal or exceed the amount of the Borrower’s obligations under the senior loan.

In the event of bankruptcy of a Borrower, the Fund could also experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a senior loan. Some senior loans are subject to the risk that a court, pursuant to fraudulent conveyance or other similar laws, could

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subordinate the senior loans to presently existing or future indebtedness of the Borrower or take other action detrimental to lenders, including the Fund. Such court action could under certain circumstances include invalidation of senior loans.

Issuer credit risk

Issuers of investments in which the Fund may invest may default, or may be in default at the time of purchase, on their obligations to pay dividends, principal or interest when due. This non-payment would result in a reduction of income to the Fund, a reduction in the value of a debt security experiencing non-payment and, potentially, a decrease in the NAV of the Fund. With respect to the Fund’s investments that are secured, there can be no assurance that liquidation of collateral would satisfy the issuer’s obligation in the event of non-payment of a scheduled dividend, interest or principal payment or that such collateral could be readily liquidated. In the event of the bankruptcy of an issuer, the Fund could experience delays or limitations with respect to its ability to realize the benefits of any collateral securing a investment. To the extent that the credit rating assigned to an investment in the Fund’s portfolio is downgraded, the market price and liquidity of such investment may be adversely affected.

Credit spread risk

Credit spread risk is the risk that credit spreads (i.e., the difference in yield between investments that is due to differences in their credit quality) may increase when the market believes that bonds generally have a greater risk of default. Increasing credit spreads may reduce the market values of the Fund’s investments. Credit spreads often increase more for lower rated and unrated investments than for investment grade investments. In addition, when credit spreads increase, reductions in market value will generally be greater for longer-maturity investments.

Interest rate risk

Interest rate risk is the risk that debt securities in the Fund’s portfolio will decline in value because of changes in market interest rates. Generally, when market interest rates rise, the market value of such securities will fall, and vice versa. As interest rates decline, issuers of debt securities may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower-yielding securities and potentially reducing the Fund’s income. As interest rates increase, slower than expected principal payments may extend the average life of securities, potentially locking in a below-market interest rate and reducing the Fund’s value. In typical market interest rate environments, the prices of longer-term debt securities generally fluctuate more than prices of shorter-term debt securities as interest rates change. The Federal Reserve recently reduced the federal funds rate several times. Accordingly, the risks associated with rising interest rates are heightened given that interest rates in the U.S. are near historic lows.

Call risk

During periods of declining interest rates or for other purposes, issuers may exercise their option to prepay principal earlier than scheduled, forcing the Fund to reinvest in lower yielding instruments. This is known as prepayment or “call” risk. The Fund may invest in securities that are subject to call risk. Debt and preferred instruments may be redeemed at the option of the issuer, or “called,” before their stated maturity or redemption date. In general, an issuer will call its debt or preferred instruments if they can be refinanced by issuing new instruments which bear a lower interest or dividend rate. The Fund is subject to the possibility that during periods of falling interest rates, an issuer will call its high yielding debt or preferred instruments. The Fund would then be forced to invest the unanticipated proceeds at lower interest or dividend rates, resulting in a decline in the Fund’s income.

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Reinvestment risk

Reinvestment risk is the risk that income from the Fund’s portfolio will decline if and when the Fund invests the proceeds from matured, traded or called securities at market interest rates that are below the portfolio’s current earnings rate. A decline in income could affect the Common Shares’ market price, NAV and/or a Common Shareholder’s overall returns. As the average maturity of the Fund’s portfolio shortens, the Fund will reinvest in shorter maturity securities at market interest rates that may be lower than at the Fund’s inception. As a result, the Fund’s income and distributions may decline over the term of the Fund. The likelihood of this risk may increase as the Fund approaches its Termination Date.

Second lien loans and unsecured loans risk

Second lien loans and unsecured loans generally are subject to the same risks associated with investments in senior loans, as discussed above. Because second lien loans and unsecured loans are lower in priority of payment to senior loans, they are subject to the additional risk that the cash flow of the borrower and property securing the loan, if any, may be insufficient to meet scheduled payments after giving effect to the senior secured obligations of the borrower. This risk is generally higher for unsecured loans, which are not backed by a security interest in any specific collateral. Second lien loans and unsecured loans are expected to have greater price volatility than senior loans and may be less liquid. Second lien loans and unsecured loans of below investment grade quality also share the same risks of other below investment grade debt instruments. See “—Below Investment Grade Risk.”

Subordinated loans and other subordinated debt instruments risk

Issuers of subordinated loans and other subordinated debt instruments in which the Fund may invest usually will have, or may be permitted to incur, other debt that ranks equally with, or senior to, the subordinated loans or other subordinated debt instruments. By their terms, such debt instruments may provide that the holders are entitled to receive payment of interest or principal on or before the dates on which the Fund is entitled to receive payments in respect of subordinated loans or other subordinated debt instruments in which it invests. Also, in the event of insolvency, liquidation, dissolution, reorganization or bankruptcy of an issuer, holders of debt instruments ranking senior to the subordinated loan or other debt instrument in which the Fund invests would typically be entitled to receive payment in full before the Fund receives any distribution in respect of its investment. After repaying such senior creditors, such issuer may not have any remaining assets to use for repaying its obligation to the Fund. In the case of debt ranking equally with subordinated loans or other subordinated debt instruments in which the Fund invests, the Fund would have to share on an equal basis any distributions with other creditors holding such debt in the event of an insolvency, liquidation, dissolution, reorganization or bankruptcy of the relevant issuer. In addition, the Fund will likely not be in a position to control any issuer by investing in its debt instruments. As a result, the Fund will be subject to the risk that an issuer in which it invests may make business decisions with which the Fund disagrees and the management of such issuer, as representatives of the holders of their common equity, may take risks or otherwise act in ways that do not serve the Fund’s interests as a debt investor.

Inverse floating rate securities risk

The Fund may invest in inverse floating rate securities. Typically, inverse floating rate securities represent beneficial interests in a special purpose trust (sometimes called a “tender option bond trust”) formed for the purpose of holding municipal bonds. See “Portfolio Composition and Other Information—Municipal Bonds—Inverse Floating Rate Securities.” In general, income on inverse floating rate securities will decrease when short-term interest rates increase and increase when short-term interest rates decrease.

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Risks

Investments in inverse floating rate securities may subject the Fund to the risks of reduced or eliminated interest payments and losses of principal.

The Fund may invest in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund. In Nuveen Fund Advisors’ and Nuveen Asset Management’s discretion, the Fund may enter into a separate shortfall and forbearance agreement with the third party granting liquidity to the floating rate security holders of the special purpose trust. The Fund may enter into such recourse agreements (i) when the liquidity provider to the special purpose trust requires such an agreement because the level of leverage in the trust exceeds the level that the liquidity provider is willing to support absent such an agreement; and/or (ii) to seek to prevent the liquidity provider from collapsing the trust in the event that the municipal obligation held in the trust has declined in value. Such an agreement would require the Fund to reimburse the third party granting liquidity to the floating rate security holders of the special purpose trust, upon termination of the trust issuing the inverse floater, the difference between the liquidation value of the bonds held in the trust and the principal amount due to the holders of floating rate interests. In such instances, the Fund may be at risk of loss that exceeds its investment in the inverse floating rate securities.

Inverse floating rate securities may increase or decrease in value at a greater rate than the underlying interest rate, which effectively leverages the Fund’s investment. As a result, the market value of such securities generally will be more volatile than that of fixed rate securities.

The Fund’s investments in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund may be highly leveraged. The structure and degree to which the Fund’s inverse floating rate securities are highly leveraged will vary based upon a number of factors, including the size of the trust itself and the terms of the underlying municipal security. In the event of a significant decline in the value of an underlying security, the Fund may suffer losses in excess of the amount of its investment (up to an amount equal to the value of the municipal securities underlying the inverse floating rate securities) as a result of liquidating special purpose trusts or other collateral required to maintain the Fund’s anticipated leverage ratio.

The Fund’s investment in inverse floating rate securities have the economic effect of leverage. Any leverage achieved through the Fund’s investment in inverse floating rate securities will create an opportunity for increased Common Share net income and returns, but will also create the possibility that Common Share long-term returns will be diminished if the cost of leverage exceeds the return on the inverse floating rate securities purchased by the Fund. See “—Fund Level Risks—Leverage Risk.”

The amount of fees paid to Nuveen Asset Management for investment advisory services will be higher if the Fund uses leverage because the fees will be calculated based on the Fund’s Managed Assets—this may create an incentive for Nuveen Asset Management to leverage the Fund. “Managed Assets” means the total assets of the Fund, minus the sum of its accrued liabilities (other than liabilities incurred for the express purpose of creating leverage). Total assets for this purpose shall include assets attributable to the Fund’s use of leverage (whether or not those assets are reflected in the Fund’s financial statements for purposes of generally accepted accounting principles), and derivatives will be valued at their market value.

Inverse floating rate securities have varying degrees of liquidity based, among other things, upon the liquidity of the underlying securities deposited in a special purpose trust. The market price of inverse floating rate securities is more volatile than the underlying securities due to leverage. The leverage attributable to such inverse floating rate securities may be “called away” on relatively short notice and

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Risks

therefore may be less permanent than more traditional forms of leverage. In certain circumstances, the likelihood of an increase in the volatility of NAV and market price of the Common Shares may be greater for a fund (like the Fund) that relies primarily on inverse floating rate securities to achieve a desired leverage ratio. The Fund may be required to sell its inverse floating rate securities at less than favorable prices, or liquidate other Fund portfolio holdings in certain circumstances, including, but not limited to, the following:

There is no assurance that the Fund’s strategy of investing in inverse floating rate securities will be successful.

Bond market liquidity risk

Inventories of bonds held by brokers and dealers have decreased in recent years, lessening their ability to make a market in these securities. This reduction in market making capacity has the potential to decrease the Fund’s ability to buy or sell bonds, and increase bond price volatility and trading costs, particularly during periods of economic or market stress. In addition, recent changes to federal banking regulations may cause certain dealers to reduce their inventories of bonds, which may further decrease the Fund’s ability to buy or sell bonds. As a result, the Fund may be forced to accept a lower price to sell a security, to sell other securities to raise cash, or to give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of bonds, those sales could further reduce the bonds’ prices and hurt performance.

Regulation S securities risk

The risk that Regulation S securities may be less liquid than publicly traded securities. Regulation S securities may not be subject to the disclosure and other investor protection requirements that would be applicable to publicly traded securities. As a result, Regulation S securities may involve a high degree of business and financial risk and may result in losses. See “—Fund Level Risks—Subsidiary Risk.”

Municipal securities market liquidity risk

Inventories of municipal securities held by brokers and dealers have decreased in recent years, lessening their ability to make a market in these securities. This reduction in market making capacity has the potential to decrease the Fund’s ability to buy or sell municipal securities at attractive prices, and increase municipal security price volatility and trading costs, particularly during periods of economic or market stress. The secondary market for municipal securities, particularly the below investment grade municipal securities in which the Fund may invest, also tends to be less well-developed or liquid than many other securities markets, which may adversely affect the Fund’s ability to sell its municipal securities at attractive prices. In addition, recent federal banking regulations may cause certain dealers to reduce their inventories of municipal securities, which may further decrease the Fund’s ability to buy or sell municipal securities. As a result, the Fund may be forced to accept a lower price to sell a security, to sell other securities to raise cash, or to give up an investment opportunity, any of which could have a negative effect on performance. If the Fund needed to sell large blocks of municipal securities to raise cash to meet its obligations, those sales could further reduce the municipal securities’ prices and hurt performance.

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Risks

The Fund may invest its assets in unrated municipal securities. The market for these municipal securities may be less liquid than the market for rated municipal securities of comparable quality. Less public information is typically available about unrated municipal securities or issuers than rated municipal securities or issuers.

Defaulted and distressed investments risk

The Fund may invest in any investments of an issuer that is in default or that is in bankruptcy or insolvency proceedings. In addition, the Fund may hold investments that at the time of purchase are not in default or involved in bankruptcy or insolvency proceedings, but may later become so. Moreover, the Fund may invest in investments either rated CCC or lower, or unrated but judged by Nuveen Asset Management to be of comparable quality. Some or many of these low-rated investments, although not in default, may be “distressed,” meaning that the issuer is experiencing financial difficulties or distress at the time of acquisition. Such investments would present a substantial risk of future default which may cause the Fund to incur losses, including additional expenses, to the extent it is required to seek recovery upon a default in the payment of principal or interest on those securities. In any reorganization or liquidation proceeding relating to a portfolio investment, the Fund may lose its entire investment or may be required to accept cash or investments with a value less than its original investment. Defaulted or distressed investments may be subject to restrictions on resale.

Derivatives risk

The Fund’s use of derivatives involves risks different from, and possibly greater than, the risks associated with investing directly in the investments underlying the derivatives. If the Fund enters into a derivative transaction, it could lose more than the principal amount invested. The risks associated with derivatives transactions include (i) the imperfect correlation between the value of such instruments and the underlying assets, (ii) the possible default of the counterparty to the transaction, (iii) illiquidity of the derivative instruments, and (iv) high volatility losses caused by unanticipated market movements, which are potentially unlimited. Although both OTC and exchange-traded derivatives markets may experience a lack of liquidity, OTC non-standardized derivative transactions are generally less liquid than exchange-traded instruments. The illiquidity of the derivatives markets may be due to various factors, including congestion, disorderly markets, limitations on deliverable supplies, the participation of speculators, government regulation and intervention, and technical and operational or system failures. In addition, daily limits on price fluctuations and speculative position limits on exchanges on which the Fund may conduct its transactions in derivative instruments may prevent prompt liquidation of positions, subjecting the Fund to the potential of greater losses.

Whether the Fund’s use of derivatives is successful will depend on, among other things, Nuveen Fund Advisors and Nuveen Asset Management correctly forecasting market circumstances, liquidity, market values, interest rates and other applicable factors. If Nuveen Fund Advisors and Nuveen Asset Management incorrectly forecast these and other factors, the investment performance of the Fund will be unfavorably affected. In addition, there can be no assurance that the derivatives investing techniques, as they may be developed and implemented by the Fund, will be successful in mitigating risk or achieving the Fund’s investment objective. The use of derivatives to enhance returns may be particularly speculative.

Hedging risk

The Fund’s use of derivatives or other transactions to reduce risks involves costs and will be subject to Nuveen Asset Management’s ability to predict correctly changes in the relationships of such hedge

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instruments to the Fund’s portfolio holdings or other factors. No assurance can be given that Nuveen Asset Management’s judgment in this respect will be correct. In addition, no assurance can be given that the Fund will enter into hedging or other transactions at times or under circumstances in which it may be advisable to do so.

Risk of swaps and swap options

The Fund may enter into derivatives instruments including credit default swap contracts, total return swap contracts and interest rate swaps. Like most derivative instruments, the use of swaps is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. In addition, the use of swaps requires an understanding by Nuveen Asset Management not only of the referenced asset, rate or index, but also of the swap itself. If Nuveen Fund Advisors and/or Nuveen Asset Management is incorrect in its forecasts of default risks, market spreads or other applicable factors or events, the investment performance of the Fund would diminish compared with what it would have been if these techniques were not used. As the protection seller in a credit default swap, the Fund effectively adds leverage to its portfolio because, in addition to being subject to investment exposure on its total net assets, the Fund is subject to investment exposure on the notional amount of the swap.

The Fund generally may only close out a swap, cap, floor, collar or other two-party contract with its particular counterparty, and generally may only transfer a position with the consent of that counterparty. Because they are two-party contracts and because they may have terms of greater than seven days, swap agreements may be considered illiquid. In addition, the price at which the Fund may close out such a two-party contract may not correlate with the price change in the underlying reference asset. Moreover, the Fund bears the risk of loss of the amount expected to be received under a swap agreement in the event of the default or bankruptcy of a swap agreement counterparty. If the counterparty defaults, the Fund will have contractual remedies, but there can be no assurance that the counterparty will be able to meet its contractual obligations or that the Fund will succeed in enforcing its rights.

The Fund may write (sell) and purchase put and call swap options. When the Fund purchases a swap option, it risks losing only the amount of the premium it has paid should it decide to let the option expire unexercised. When the Fund writes a swap option, upon exercise of the option the Fund would become obligated according to the terms of the underlying agreement.

It is possible that developments in the derivatives market, including changes in government regulation, could adversely affect the Fund’s ability to terminate existing swap agreements or to realize amounts to be received under such agreements.

Financial futures and options transactions risk

The Fund may use certain transactions for hedging the portfolio’s exposure to credit risk and the risk of increases in interest rates, which could result in poorer overall performance for the Fund. The Fund’s use of certain transactions to reduce risk involves costs and will be subject to Nuveen Asset Management’s ability to predict correctly changes in the relationships of such hedge instruments to the Fund’s portfolio holdings or other factors. No assurance can be given that Nuveen Asset Management’s judgment in this respect will be correct. In addition, no assurance can be given that the Fund will enter into hedging or other transactions at times or under circumstances in which it may be advisable to do so.

There are certain risks associated with the use of financial futures and options to hedge investment portfolios. There may be an imperfect correlation between price movements of the futures and options

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and price movements of the portfolio investments being hedged. Losses may be incurred in hedging transactions, which could reduce the portfolio gains that might have been realized if the hedging transactions had not been entered into. If the Fund engages in futures transactions or in the writing of options on futures, it will be required to maintain initial margin and maintenance margin and may be required to make daily variation margin payments in accordance with applicable rules of the exchanges and the Commodity Futures Trading Commission (“CFTC”). If the Fund purchases a financial futures contract or a call option or writes a put option in order to hedge the anticipated purchase of fixed-income investments, and if the Fund fails to complete the anticipated purchase transaction, the Fund may have a loss or a gain on the futures or options transaction that will not be offset by price movements in the fixed-income investments that were the subject of the anticipatory hedge. The cost of put options on debt securities or indexes effectively increases the cost of the securities subject to them, thereby reducing the yield otherwise available from these securities. If the Fund decides to use futures contracts or options on futures contracts for hedging purposes, the Fund will be required to establish an account for such purposes with one or more CFTC-registered futures commission merchants. A futures commission merchant could establish initial and maintenance margin requirements for the Fund that are greater than those which would otherwise apply to the Fund under applicable rules of the exchanges and the CFTC. There can be no assurance that a liquid market will exist at a time when the Fund seeks to close out a derivatives or futures or a futures option position, and the Fund would remain obligated to meet margin requirements until the position is closed. Futures exchanges may limit the amount of fluctuation permitted in certain futures contract prices during a single trading day. The daily limit establishes the maximum amount that the price of a futures contract may vary either up or down from the previous day’s settlement price at the end of the current trading session. Once the daily limit has been reached in a futures contract subject to the limit, no more trades may be made on that day at a price beyond that limit. The daily limit governs only price movements during a particular trading day and therefore does not limit potential losses because the limit may work to prevent the liquidation of unfavorable positions. For example, futures prices have occasionally moved to the daily limit for several consecutive trading days with little or no trading, thereby preventing prompt liquidation of positions and subjecting some holders of futures contracts to substantial losses.

Counterparty risk

The Fund will be subject to credit risk with respect to the counterparties to the derivative transactions entered into by the Fund. Changes in the credit quality of the companies that serve as the Fund’s counterparties with respect to derivatives transactions may affect the value of those instruments. Because certain derivative transactions in which the Fund may engage may be traded between counterparties based on contractual relationships, the Fund is subject to the risk that a counterparty will not perform its obligations under the related contracts. If a counterparty becomes bankrupt or otherwise becomes unable to perform its obligations due to financial difficulties the Fund may sustain losses (including the full amount of its investment), may be unable to liquidate a derivatives position or may experience significant delays in obtaining any recovery in bankruptcy or other reorganization proceedings. By entering into derivatives transactions, the Fund assumes the risk that its counterparties could experience such financial hardships. Although the Fund intends to enter into transactions only with counterparties that Nuveen Fund Advisors believes to be creditworthy, there can be no assurance that a counterparty will not default and that the Fund will not sustain a loss on a transaction. In the event of a counterparty’s bankruptcy or insolvency, any collateral posted by the Fund in connection with a derivatives transaction may be subject to the conflicting claims of that counterparty’s creditors, and the Fund may be exposed to the risk of a court treating the Fund as a general unsecured creditor of the counterparty, rather than as the owner of the collateral.

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Risks

The counterparty risk for cleared derivatives is generally lower than for uncleared OTC derivative transactions. In a cleared derivative transaction, generally, a clearing organization becomes substituted for each counterparty to a cleared derivative contract and each party to a trade looks only to the clearing organization for performance of financial obligations under the derivative contract. In effect, the clearing organization guarantees a party’s performance under the contract. However, there can be no assurance that a clearing organization, or its members, will satisfy its obligations to the Fund, or that the Fund would be able to recover the full amount of assets deposited on its behalf with the clearing organization in the event of the default by the clearing organization or the Fund’s clearing broker. In addition, cleared derivative transactions benefit from daily marking-to-market and settlement, and segregation and minimum capital requirements applicable to intermediaries. Uncleared OTC derivative transactions generally do not benefit from such protections. As a result, for uncleared OTC derivative transactions, there is the risk that a counterparty will not settle a transaction in accordance with its terms and conditions because of a dispute over the terms of the contract (whether or not bona fide) or because of a credit or liquidity problem, thus causing the Fund to suffer a loss. This risk is heightened for contracts with longer maturities where events may intervene to prevent settlement, or where the Fund has concentrated its transactions with a single or small group of counterparties.

Tax risk

The Fund intends to elect to be treated and to qualify each year as a RIC under the Internal Revenue Code of 1986, as amended (the “Code”). As a RIC, the Fund is not expected to be subject to U.S. federal income tax to the extent that it distributes its investment company taxable income and net capital gain each year. To qualify for the special tax treatment available to a RIC, the Fund must comply with certain income, distribution, and diversification requirements. Under certain circumstances, the Fund may be forced to sell certain assets when it is not advantageous in order to meet these requirements, which may reduce the Fund’s overall return. If the Fund fails to meet any of these requirements, subject to the opportunity to cure such failures under applicable provisions of the Code, the Fund’s income would be subject to a double level of U.S. federal income tax. The Fund’s income, including its net capital gain, would first be subject to U.S. federal income tax at the corporate income tax rate, even if such income were distributed to shareholders and, second, all distributions by the Fund from earnings and profits, including distributions of net capital gain (if any), would be taxable to shareholders as dividends. See “Tax Matters.”

The value of the Fund’s investments and its NAV may be adversely affected by changes in tax rates and rules. For example, although the Fund does not anticipate satisfying the requirements to enable it to pay tax-exempt dividends to shareholders, because interest income from municipal securities is normally not subject to U.S. regular federal income taxation, the attractiveness of municipal securities in relation to other investment alternatives is affected by changes in U.S. federal income tax rates or changes in the tax exempt status of interest income from municipal securities. Additionally, the Fund is not a suitable investment for investors seeking primarily tax free income since, as just described, the Fund does not anticipate satisfying the requirements to enable it to pay tax-exempt dividends to shareholders. Also, the Fund’s portfolio turnover is expected to be higher than that of a traditional municipal bond fund and the Fund therefore expects that a greater percentage of each distribution will be capital gains with investors being subject to tax on such distributed gain (depending on the investor’s situation). As a result, the level of taxable distributions currently anticipated by the Fund could be significant for Common Shareholders. Distributions of taxable ordinary income (including any net short-term capital gain) will be taxable to shareholders as ordinary income (and generally not expected to be eligible for favorable taxation as “qualified dividend income”), and capital gain dividends will be taxable as long-term capital gains. Interest income on municipal securities also may be subject to state and local income taxes. See “Tax Matters.”

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Risks

Inflation risk

Inflation risk is the risk that the value of assets or income from investments will be worth less in the future as inflation decreases the value of money. As inflation increases, the real value of the Common Shares and distributions can decline.

Other investment companies risk

The Fund may invest in the securities of other investment companies, including ETFs. Such securities may be leveraged. As a result, the Fund may be indirectly exposed to leverage through an investment in such securities and therefore magnify the Fund’s leverage risk. Utilization of leverage is a speculative investment technique and involves certain risks. An investment in securities of other investment companies that are leveraged may expose the Fund to higher volatility in the market value of such securities and the possibility that the Fund’s long-term returns on such securities (and, indirectly, the long-term returns of the Common Shares) will be diminished. The Fund, as a holder of the securities of other investment companies, will bear its pro rata portion of the other investment companies’ expenses, including advisory fees. These expenses are in addition to the direct expenses of the Fund’s own operations. As a result, the cost of investing in investment company shares may exceed the costs of investing directly in its underlying investments. Investing in an investment company exposes the Fund to all of the risks of that investment company’s investments. An ETF that is based on a specific index may not be able to replicate and maintain exactly the composition and relative weighting of securities in the index. The value of an ETF based on a specific index is subject to change as the values of its respective component assets fluctuate according to market volatility. ETFs typically rely on a limited pool of authorized participants to create and redeem shares, and an active trading market for ETF shares may not develop or be maintained. The market value of shares of ETFs and closed-end funds may differ from their NAV.

Valuation risk

The investments in which the Fund invests typically are valued by a pricing service utilizing a range of market-based inputs and assumptions, including readily available market quotations obtained from broker-dealers making markets in such instruments, cash flows and transactions for comparable instruments. There is no assurance that the Fund will be able to sell a portfolio investment at the price established by the pricing service, which could result in a loss to the Fund. Pricing services generally price debt securities assuming orderly transactions of an institutional “round lot” size, but some trades may occur in smaller, “odd lot” sizes, often at lower prices than institutional round lot trades. Different pricing services may incorporate different assumptions and inputs into their valuation methodologies, potentially resulting in different values for the same investments. As a result, if the Fund were to change pricing services, or if the Fund’s pricing service were to change its valuation methodology, there could be a material impact, either positive or negative, on the Fund’s NAV.

FUND LEVEL RISKS

Market discount from net asset value

Shares of closed-end investment companies like the Fund frequently trade at prices lower than their NAV, which creates a risk of loss for investors when they sell shares purchased in the initial public offering. This characteristic is a risk separate and distinct from the risk that the Fund’s NAV could decrease as a result of investment activities. Shares of closed-end investment companies like the Fund have during some periods traded at prices higher than NAV and have during other periods traded at

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Risks

prices lower than NAV. Whether investors will realize gains or losses upon the sale of the Common Shares will depend not upon the Fund’s NAV but entirely upon whether the market price of the Common Shares at the time of sale is above or below the investor’s purchase price for the Common Shares. Furthermore, management may have difficulty meeting the Fund’s investment objective and managing its portfolio when the underlying securities are redeemed or sold during periods of market turmoil and as investors’ perceptions regarding closed-end funds or their underlying investments change. Because the market price of the Common Shares will be determined by factors such as relative supply of and demand for the Common Shares in the market, general market and economic circumstances, and other factors beyond the control of the Fund, the Fund cannot predict whether the Common Shares will trade at, below or above NAV or at, below or above the initial public offering price. The Common Shares are designed primarily for long-term investors, and you should not view the Fund as a vehicle for short-term trading purposes.

Investment and market risk

An investment in Common Shares is subject to investment risk, including the possible loss of the entire principal amount that you invest. Your investment in Common Shares represents an indirect investment in the investments owned by the Fund. Your Common Shares at any point in time may be worth less than your original investment, even after taking into account the reinvestment of Fund dividends and distributions.

Leverage risk

The Fund’s anticipated use of leverage creates special risks for Common Shareholders, including potential interest rate risks and the likelihood of greater volatility of NAV and market price of, and distributions on, the Common Shares. The use of leverage in a declining market will likely cause a greater decline in Common Share NAV, which may result at a greater decline of the Common Share price, than if the Fund were not to have used leverage. The Fund will pay (and Common Shareholders will bear) any costs and expenses relating to the Fund’s use of leverage, which will result in a reduction in the NAV of the Common Shares. Nuveen Fund Advisors may, based on its assessment of market conditions, composition of the Fund’s holdings and remaining time until the Fund’s Termination Date, increase or decrease the amount of leverage. Such changes may impact the Fund’s distributions and the price of the Fund’s Common Shares in the secondary market. There is no assurance that the Fund will utilize leverage or that the Fund’s use of leverage will be successful. See “Leverage.”

The Fund pays a management fee to Nuveen Fund Advisors for investment advisory services, which in turn pays a portion of its fee to Nuveen Asset Management for investment sub-advisory services, based on a percentage of the Fund’s Managed Assets. Nuveen Fund Advisors and Nuveen Asset Management will base the decision regarding whether and how much leverage to use for the Fund based on their assessment of whether such use of leverage is in the best interests of the Fund. However, the fact that a decision to employ or increase the Fund’s leverage will have the effect, all other things being equal, of increasing Managed Assets and therefore Nuveen Fund Advisors’ and Nuveen Asset Management’s fees means that they may have a conflict of interest in determining whether to use or increase leverage. Nuveen Fund Advisors and Nuveen Asset Management will seek to manage that potential conflict by leveraging the Fund (or increasing such leverage) only when they determine that such action is in the best interests of the Fund, and by periodically reviewing the Fund’s performance and use of leverage with the Board of Trustees.

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Risks

Reverse repurchase agreement risk

Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price and date, thereby establishing an effective interest rate. The Fund’s use of reverse repurchase agreements, in economic essence, constitute a securitized borrowing by the Fund from the security purchaser. The Fund may enter into reverse repurchase agreements for the purpose of creating a leveraged investment exposure and, as such, their usage involves essentially the same risks associated with a leveraging strategy generally since the proceeds from these agreements may be invested in additional securities. Reverse repurchase agreements tend to be short-term in tenor, and there can be no assurances that the purchaser (lender) will commit to extend or “roll” a given agreement upon its agreed-upon repurchase date or an alternative purchaser can be identified on similar terms.

Reverse repurchase agreements also involve the risk that the purchaser fails to return the securities as agreed upon, files for bankruptcy or becomes insolvent. The Fund may be restricted from taking normal portfolio actions during such time, could be subject to loss to the extent that the proceeds of the agreement are less than the value of securities subject to the agreement and may experience adverse tax consequences.

Limited term and tender offer risks

The Fund is scheduled to terminate as of the Stated Termination Date. The Fund’s investment objective is not designed to return to Common Shareholders their original NAV or purchase price. Because the assets of the Fund will be liquidated in connection with its termination or to pay for Common Shares tendered in an Eligible Tender Offer, the Fund may be required to sell portfolio investments when it otherwise would not, including at times when market conditions are not favorable, or at a time when a particular investment is in default or bankruptcy, or otherwise in severe distress, which may cause the Fund to lose money.

If the Fund conducts an Eligible Tender Offer, and the tender offer is completed, it is anticipated that funds to pay the aggregate purchase price of Common Shares accepted for purchase pursuant to the tender offer will be first derived from any cash on hand and then from the proceeds from the sale of portfolio investments. In addition, the Fund may be required to dispose of portfolio investments in connection with any reduction in its outstanding leverage necessary in order to maintain its desired leverage ratios following an Eligible Tender Offer. The risks related to the disposition of portfolio investments in connection with termination also would be present in connection with the disposition of portfolio investments in connection with an Eligible Tender Offer. It is likely that during the pendency of an Eligible Tender Offer, and possibly for a time thereafter, the Fund will hold a greater than normal percentage of its total assets in money market mutual funds, cash, cash equivalents, securities issued or guaranteed by the U.S. government or its instrumentalities or agencies, high quality, short-term money market instruments, short-term debt securities, certificates of deposit, bankers’ acceptances and other bank obligations, commercial paper or other liquid debt securities, which may adversely affect the Fund’s investment performance. If the tax basis for the portfolio investments sold is less than the sale proceeds, the Fund will recognize capital gains, which it may be required to distribute to Common Shareholders. In addition, the Fund’s purchase of tendered Common Shares pursuant to an Eligible Tender Offer will have tax consequences for tendering Common Shareholders and may have tax consequences for non-tendering Common Shareholders. The purchase of Common Shares pursuant to an Eligible Tender Offer will have the effect of increasing the proportionate interest in the Fund of non-tendering Common Shareholders. All Common Shareholders remaining after an Eligible Tender Offer will be subject to proportionately higher expenses due to the reduction in the Fund’s total assets resulting from payment for the tendered Common Shares. Such reduction in the Fund’s total assets also may result in less

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Risks

investment flexibility, reduced diversification and greater volatility for the Fund, and may have an adverse effect on the Fund’s investment performance.

The Fund is not required to conduct an Eligible Tender Offer. If the Fund conducts an Eligible Tender Offer, there can be no assurance that the number of tendered Common Shares would not result in the Fund’s net assets totaling less than the Termination Threshold, in which case the Eligible Tender Offer will be terminated, no Common Shares will be repurchased pursuant to the Eligible Tender Offer and the Fund will terminate on the Termination Date. Following the completion of an Eligible Tender Offer in which the number of tendered Common Shares would result in the Fund’s net assets totaling greater than the Termination Threshold, the Board of Trustees may provide that the Fund may continue without limitation of time, upon the affirmative vote of a majority of the Board of Trustees and without a vote of shareholders. Thereafter, the Fund will have a continued existence without limitation of time. Nuveen Fund Advisors may have a conflict of interest in recommending to the Board of Trustees that the Fund may have a continued existence without limitation of time. The Fund is not required to conduct additional tender offers following an Eligible Tender Offer and conversion to a continued existence without limitation of time. Therefore, remaining Common Shareholders may not have another opportunity to participate in a tender offer. Shares of closed-end management investment companies frequently trade at a discount from their NAV, and as a result remaining Common Shareholders may only be able to sell their Common Shares at a discount to NAV. See “—Fund Level Risks—Market Discount from Net Asset Value.”

The Fund’s final distribution to Common Shareholders upon termination of the Fund will be based upon the Fund’s NAV at the Termination Date. Any investors who purchase Common Shares in this offering, and any investors who purchase Common Shares after the completion of this offering (particularly if their purchase price differs meaningfully from the original offering price) may receive less than their original investment. Rather than reinvesting the proceeds of its investments, the Fund may also distribute the proceeds in one or more distributions prior to the final liquidation, which may cause the Fund’s fixed expenses to increase when expressed as a percentage of net assets attributable to Common Shares. Depending upon a variety of factors, including the performance of the Fund’s portfolio over the life of the Fund, the amount distributed to Common Shareholders may be significantly less than their original investment.

Because the Fund will invest in below investment grade investments, it may be exposed to the greater potential for an issuer of its investments to default, as compared to a fund that invests solely in investment grade investments. As a result, should a Fund portfolio holding default, this may significantly reduce net investment income and, therefore, Common Share dividends; and may prevent or inhibit the Fund from fully being able to liquidate its portfolio at or prior to the Termination Date. See “—Portfolio Level Risks—Municipal Securities Market Risk”, and “—Portfolio Level Risks—Below Investment Grade Risk” above.

Distribution risk

The Fund’s distributions will be composed of net investment income and a supplemental amount generally representing the potential for capital appreciation, which will take the form of realized capital gains and/or a return of capital. The return of capital component of a Fund distribution may (but will not necessarily) represent unrealized capital gains. A return of capital is a non-taxable distribution of a portion of the Fund’s capital. If over the life of a shareholder’s investment, the total return of the Fund’s overall strategy is less than the distribution rate, a return of capital will represent a portion of a shareholder’s original principal (in effect a partial return of the amount a shareholder invested in the

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Risks

Fund). A return of capital reduces a shareholder’s tax cost basis (but not below zero) in Fund shares, which could result in more taxable gain or less taxable loss when the shareholder sells their shares. This may cause the shareholder to pay taxes even if he or she sells shares for less than the original price. The Fund’s distribution policy, rate of distributions on the Common Shares and the portion of distributions composed of net investment income, realized capital gain and return of capital may vary over time. Shareholders who periodically receive the payment of a distribution consisting of a return of capital may be under the impression that they are receiving net income or profits when they are not. Shareholders should not assume that the source of a return of capital distribution from the Fund is net income or profit.

Subsidiary risk

By investing in the Subsidiary, the Fund is indirectly exposed to the risks associated with the Subsidiary’s investments in Regulation S securities that are not freely tradable in the U.S. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the SEC pursuant to Regulation S of the 1933 Act. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale. Although Regulation S securities may be resold in privately negotiated transactions, the price realized from these sales could be less than the price originally paid by the Fund. Further, companies whose securities are not publicly traded may not be subject to the disclosure of other investor protection requirements that would be applicable if their securities were publicly traded. Accordingly, Regulation S securities may involve a high degree of business and financial risk and may result in substantial losses. There can be no assurance that the investment objective of the Subsidiary will be achieved. The Subsidiary is not registered under the 1940 Act, and, unless otherwise noted in this prospectus, is not subject to all the investor protections of the 1940 Act. However, the Fund wholly owns and controls the Subsidiary, and the Fund and the Subsidiary are both managed by Nuveen Asset Management making it unlikely that the Subsidiary will take action contrary to the interests of the Fund and its Common Shareholders. The Board of Trustees has oversight responsibility for the investment activities of the Fund, including its investment in the Subsidiary, and the Fund’s role as sole shareholder of the Subsidiary. The Subsidiary is subject to the same investment restrictions and limitations, and follows the same compliance policies and procedures, as the Fund. Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the Fund and/or the Subsidiary to operate as described in this prospectus and the SAI and could adversely affect the Fund. See “—Portfolio Level Risks—Regulation S Securities Risks.”

Frequent trading risk

The Fund may engage in active and frequent trading of its portfolio investments, which may result in the Fund having high portfolio turnover. Effects of frequent trading may include high transaction costs, which may lower the Fund’s return, and realization of greater short-term capital gains, distributions of which are taxable as ordinary income to taxable shareholders.

No operating history

The Fund is a newly organized, diversified, closed-end management investment company with no history of operations. As a result, prospective investors have no track record or history upon which to base their investment decision.

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Risks

OTHER RISKS

Global economic risk

National and regional economies and financial markets are becoming increasingly interconnected, which increases the possibilities that conditions in one country, region or market might adversely impact issuers in a different country, region or market. Changes in legal, political, regulatory, tax and economic conditions may cause fluctuations in markets and investments prices around the world, which could negatively impact the value of the Fund’s investments. Major economic or political disruptions, particularly in large economies like China’s, may have global negative economic and market repercussions. Additionally, the aftermath of the war in Iraq, instability in Afghanistan, Pakistan, Egypt, Libya, Syria, Russia, Ukraine and the Middle East, natural and environmental disasters and the spread of infectious illnesses or other public health emergencies, possible terrorist attacks in the United States and around the world, continued tensions between North Korea and the United States and the international community generally, growing social and political discord in the United States, the European debt crisis, the response of the international community—through economic sanctions and otherwise—to Russia’s annexation of the Crimea region of Ukraine and posture vis-a-vis Ukraine, further downgrade of U.S. government securities, the change in the U.S. president and the new administration and other similar events may adversely affect the global economy and the markets and issuers in which the Fund invests. Recent examples of such events include the outbreak of a novel coronavirus known as COVID-19 that was first detected in China in December 2019 and heightened concerns regarding North Korea’s nuclear weapons and long-range ballistic missile programs. These events could reduce consumer demand or economic output, result in market closure, travel restrictions or quarantines, and generally have a significant impact on the economy. These events could also impair the information technology and other operational systems upon which the Fund’s service providers, including Nuveen Asset Management, rely, and could otherwise disrupt the ability of employees of the Fund’s service providers to perform essential tasks on behalf of the Fund.

In December 2019, an initial outbreak of COVID-19 was reported and has resulted in numerous deaths and the imposition of both local and more widespread quarantine measures, border closures and other travel restrictions, causing social unrest and commercial disruption on a global scale. In response to the COVID-19 pandemic, central banks and governments have responded with liquidity injections to ease the strain on financial systems and stimulus measures to buffer the shock to businesses and consumers. These measures have helped stabilize the markets over the short term, but volatility will likely remain elevated until the health crisis itself is under control (via fewer new cases, lower infection rates and/or verified treatments). There are still many unknowns and new information is incoming daily, compounding the difficulty of modeling outcomes for epidemiologists and economists alike.

Additionally, the recent outbreak of COVID-19 has adversely impacted global commercial activity and has contributed to significant volatility in certain financial markets. There are no comparable recent events in the U.S. that provide guidance as to the effect of the spread of COVID-19 and a potential pandemic on the economy as a whole and, consequently, the Fund. Accordingly, while there have been proposed, and in some cases enacted, economic stimulus measures aimed at curbing the negative economic impacts to the U.S. and other countries as a result of COVID-19, it cannot be determined at this time whether such stimulus measures will have a stabilizing economic effect.

To the extent the impacts of COVID-19 continue, the Fund may experience negative impacts to its business that could exacerbate other risks to which the Fund is subject, including: (1) issuers of fixed-income investments could be materially impacted by the COVID-19 pandemic, which may, in turn, negatively affect the value of such investments or such issuers’ ability to make interest payments or

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distributions to the Fund and result in a decrease in the NAV of the Fund; (2) operational impacts on and availability of key personnel of Nuveen Fund Advisors, Nuveen Asset Management, and/or any of the Fund’s other service providers, vendors and counterparties as they face changed circumstances and/or illness related to the pandemic; and (3) limitations on the Fund’s ability to make distributions or dividends, as applicable, to Common Shareholders.

The Fund does not know and cannot predict how long the securities markets may be affected by these events and the effects of these and similar events in the future on the U.S. economy and securities markets. The Fund may be adversely affected by abrogation of international agreements and national laws which have created the market instruments in which the Fund may invest, failure of the designated national and international authorities to enforce compliance with the same laws and agreements, failure of local, national and international organizations to carry out their duties prescribed to them under the relevant agreements, revisions of these laws and agreements which dilute their effectiveness or conflicting interpretation of provisions of the same laws and agreements.

Governmental and quasi-governmental authorities and regulators throughout the world have in the past responded to major economic disruptions with a variety of significant fiscal and monetary policy changes, including but not limited to, direct capital infusions into companies, new monetary programs and dramatically lower interest rates. An unexpected or quick reversal of these policies, or the ineffectiveness of these policies, could increase volatility in securities markets, which could adversely affect the Fund’s investments. See “—Recent Market Conditions” below.

Recent market conditions

In response to the financial crisis and recent market events, the United States and other governments and the Federal Reserve and certain foreign central banks have taken steps to support financial markets. Policy and legislative changes by the United States government and the Federal Reserve to assist in the ongoing support of financial markets, both domestically and in other countries, are changing many aspects of financial regulation. The impact of these changes on the markets, and the practical implications for market participants, may not be fully known for some time. In some countries where economic conditions are recovering, such countries are nevertheless perceived as still fragile. Withdrawal of government support, failure of efforts in response to the crisis, or investor perception that such efforts are not succeeding, could adversely impact the value and liquidity of certain investments. The severity or duration of adverse economic conditions may also be affected by policy changes made by governments or quasi-governmental organizations, including changes in tax laws and the imposition of trade barriers. The impact of new financial regulation legislation on the markets and the practical implications for market participants may not be fully known for some time. Changes to the Federal Reserve policy, including with respect to certain interest rates, may affect the value, volatility and liquidity of dividend and interest paying securities. Regulatory changes are causing some financial services companies to exit long-standing lines of business, resulting in dislocations for other market participants. In addition, the contentious domestic political environment, as well as political and diplomatic events within the United States and abroad, such as the U.S. government’s inability at times to agree on a long-term budget and deficit reduction plan, the threat of a federal government shutdown and threats not to increase the federal government’s debt limit, may affect investor and consumer confidence and may adversely impact financial markets and the broader economy, perhaps suddenly and to a significant degree. The U.S. government has recently reduced the federal corporate income tax rate, and future legislative, regulatory and policy changes may result in more restrictions on international trade, less stringent prudential regulation of certain players in the financial markets, and significant new investments in infrastructure and national defense. Markets may react strongly to expectations about the changes in these policies, which could increase volatility, especially if the markets’ expectations for changes in government policies are not borne out.

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Changes in market conditions will not have the same impact on all types of investments. Interest rates have been unusually low in recent years in the United States and abroad, but there is a consensus that interest rates will increase during the life of the Fund, which could negatively impact the price of debt securities. Because there is little precedent for this situation, it is difficult to predict the impact of a significant rate increase on various markets. For example, because investors may buy securities or other investments with borrowed money, a significant increase in interest rates may cause a decline in the markets for those investments. Because of the sharp decline in the worldwide price of oil, there is a concern that oil producing nations may withdraw significant assets now held in U.S. Treasuries, which could force a substantial increase in interest rates. Regulators have expressed concern that rate increases may cause investors to sell fixed income securities faster than the market can absorb them, contributing to price volatility. In addition, there is a risk that the prices of goods and services in the United States and many foreign economies may decline over time, known as deflation (the opposite of inflation). Deflation may have an adverse effect on stock prices and creditworthiness and may make defaults on debt more likely. If a country’s economy slips into a deflationary pattern, it could last for a prolonged period and may be difficult to reverse.

On June 23, 2016, the United Kingdom (“UK”) held a referendum on whether to remain a member state of the European Union (“EU”), in which voters favored the UK’s withdrawal from the EU, an event widely referred to as “Brexit” and which triggered a two-year period of negotiations on the terms of withdrawal. The formal notification to the European Council required under Article 50 of the Treaty on EU was made on March 29, 2017, following which the terms of exit were negotiated. On January 31, 2020, the UK formally withdrew from the EU and the two sides entered into a transition phase, where the UK effectively remained in the EU from an economic perspective, but no longer had any political representation in the EU parliament. The transition period concluded on December 31, 2020, and EU law no longer applies in the UK. On December 30, 2020, the UK and EU signed an EU-UK Trade and Cooperation Agreement (“UK/EU Trade Agreement”), which went into effect on January 1, 2021 and sets out the foundation of the economic and legal framework for trade between the UK and EU. As the UK/EU Trade Agreement is a new legal framework, the implementation of the UK/EU Trade Agreement may result in uncertainty in its application and periods of volatility in both the UK and wider European markets. The longer term economic, legal, political and social framework to be put in place between the UK and the EU are unclear at this stage, remain subject to negotiation and are likely to lead to ongoing political and economic uncertainty and periods of exacerbated volatility in both the UK and in wider European markets for some time. The outcomes may cause increased volatility and have a significant adverse impact on world financial markets, other international trade agreements, and the UK and European economies, as well as the broader global economy for some time. Additionally, a number of countries in Europe have suffered terror attacks, and additional attacks may occur in the future. Ukraine has experienced ongoing military conflict; this conflict may expand and military attacks could occur elsewhere in Europe. Europe has also been struggling with mass migration from the Middle East and Africa. The ultimate effects of these events and other socio-political or geographical issues are not known but could profoundly affect global economies and markets.

The current political climate has intensified concerns about a potential trade war between China and the United States, as each country has recently imposed tariffs on the other country’s products. These actions may trigger a significant reduction in international trade, the oversupply of certain manufactured goods, substantial price reductions of goods and possible failure of individual companies and/or large segments of China’s export industry, which could have a negative impact on the Fund’s performance. U.S. companies that source material and goods from China and those that make large amounts of sales in China would be particularly vulnerable to an escalation of trade tensions. Uncertainty regarding the outcome of the trade tensions and the potential for a trade war could cause the U.S. dollar to decline

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against safe haven currencies, such as the Japanese yen and the euro. Events such as these and their consequences are difficult to predict and it is unclear whether further tariffs may be imposed or other escalating actions may be taken in the future.

The impact of these developments in the near- and long-term is unknown and could have additional adverse effects on economies, financial markets and asset valuations around the world.

Legislation and regulatory risk

At any time after the date of this prospectus, legislation or additional regulations may be enacted that could negatively affect the assets of the Fund, investments held by the Fund or the issuers of such investments. Changing approaches to regulation may have a negative impact on the entities and/or investments in which the Fund invests. Legislation or regulation may also change the way in which the Fund itself is regulated. Fund shareholders may incur increased costs resulting from such legislation or additional regulation. There can be no assurance that future legislation, regulation or deregulation will not have a material adverse effect on the Fund or will not impair the ability of the Fund to achieve its investment objective.

For example, the Dodd-Frank Act is designed to impose stringent regulation on the over-the-counter derivatives market in an attempt to increase transparency and accountability and provides for, among other things, new clearing, execution, margin, reporting, recordkeeping, business conduct, disclosure, position limit, minimum net capital and registration requirements. Although the CFTC has released final rules under the Dodd-Frank Act, many of the provisions are subject to further final rulemaking, and thus the Dodd-Frank Act’s ultimate impact remains unclear.

The SEC recently enacted Rule 18f-4 under the 1940 Act governing the use of derivatives by registered investment companies, which could affect the nature and extent of derivatives used by the Fund. It is possible that new Rule 18f-4 could limit the implementation of the Fund’s use of derivatives, which could have an adverse impact on the Fund.

Additionally, the Fund is operated by persons who have claimed an exclusion, granted to operators of registered investment companies like the Fund, from registration as a “commodity pool operator” under Rule 4.5 promulgated by the CFTC pursuant to its authority under the Commodity Exchange Act (the “CEA”) and, therefore, is not subject to registration or regulation as a “commodity pool operator.” As a result, the Fund is limited in its ability to use commodity futures (which include futures on broad-based securities indexes and interest rate futures) or options on commodity futures, engage in swaps transactions or make certain other investments (whether directly or indirectly through investments in other investment vehicles) for purposes other than bona fide hedging. With respect to transactions other than for bona fide hedging purposes, either: (1) the aggregate initial margin and premiums required to establish the Fund’s positions in such investments may not exceed 5% of the liquidation value of the Fund’s portfolio (after accounting for unrealized profits and unrealized losses on any such investments); or (2) the aggregate net notional value of such instruments, determined at the time the most recent position was established, may not exceed 100% of the liquidation value of the Fund’s portfolio (after accounting for unrealized profits and unrealized losses on any such positions). In addition to meeting one of the foregoing trading limitations, the Fund may not market itself as a commodity pool or otherwise as a vehicle for trading in the futures, options or swaps markets. If the Fund does not continue to claim the exclusion, it would likely become subject to registration and regulation as a commodity pool operator. The Fund may incur additional expenses as a result of the CFTC’s registration and regulatory requirements.

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LIBOR replacement risk

The use of the LIBOR will be phased out by the end of 2021. This may adversely affect the Fund’s investments whose value is tied to LIBOR. There remains uncertainty regarding the future use of LIBOR and the nature of any replacement reference rate. Actions by regulators have resulted in the establishment of alternative reference rates to LIBOR in most major currencies and markets are slowly developing in response to these new rates. The transition process away from LIBOR may involve, among other things, increased volatility or illiquidity in markets for instruments that currently rely on LIBOR. The potential effect of a discontinuation of LIBOR on the Fund’s investments will vary depending on, among other things: (1) existing fallback provisions that provide a replacement reference rate if LIBOR is no longer available; (2) termination provisions in individual contracts; and (3) whether, how, and when industry participants develop and adopt new reference rates and fallbacks for both legacy and new products and instruments. Accordingly, it is difficult to predict the full impact of the transition away from LIBOR until new reference rates and fallbacks are commercially accepted.

Anti-takeover provisions

The Fund’s Declaration of Trust and By-laws include provisions that could limit the ability of other entities or persons to acquire control of the Fund or convert the Fund to open-end status. Further, the By-laws provide that a shareholder who obtains beneficial ownership of common shares in a “Control Share Acquisition” shall have the same voting rights as other Common Shares only to the extent authorized by shareholders. These provisions could have the effect of depriving the Common Shareholders of opportunities to sell their Common Shares at a premium over the then-current market price of the Common Shares. See “Certain Provisions in the Declaration of Trust and By-Laws.”

Potential conflicts of interest risk

Nuveen Fund Advisors and Nuveen Asset Management each provide a wide array of portfolio management and other asset management services to a mix of clients and may engage in ordinary course activities in which their respective interests or those of their clients may compete or conflict with those of the Fund. In certain circumstances, and subject to its fiduciary obligations under the Investment Advisers Act of 1940, Nuveen Asset Management may have to allocate a limited investment opportunity among its clients, which include closed-end funds, open-end funds and other commingled funds. Nuveen Fund Advisors and Nuveen Asset Management have each adopted policies and procedures designed to address such situations and other potential conflicts of interests.

For additional information about potential conflicts of interest, and the way in which Nuveen Fund Advisors and Nuveen Asset Management address such conflicts, please see “Subadviser—Nuveen Asset Management Conflict of Interest Policies” in the SAI.

THE FOLLOWING RISKS ARE NOT CONSIDERED TO BE PRINCIPAL RISKS OF INVESTING IN THE FUND:

Income risk

The Fund’s income could decline due to falling market interest rates. This is because, in a falling interest rate environment, the Fund generally will have to invest the proceeds from sales of Fund shares, as well as the proceeds from maturing portfolio investments, in lower-yielding investments.

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Deflation risk

Deflation risk is the risk that prices throughout the economy decline over time, which may have an adverse effect on the market valuation of companies, their assets and revenues. In addition, deflation may have an adverse effect on the creditworthiness of issuers and may make issuer default more likely, which may result in a decline in the value of the Fund’s portfolio.

Risks related to the Fund’s clearing broker and central clearing counterparty

The CEA requires swaps and futures clearing brokers registered as “futures commission merchants” to segregate all funds received from customers with respect to any orders for the purchase or sale of U.S. domestic futures contracts and cleared swaps from the brokers’ proprietary assets. Similarly, the CEA requires each futures commission merchant to hold in separate secure accounts all funds received from customers with respect to any orders for the purchase or sale of foreign futures contracts and cleared swaps and segregate any such funds from the funds received with respect to domestic futures contracts. However, all funds and other property received by a clearing broker from its customers are held by the clearing broker on a commingled basis in an omnibus account and may be invested in certain instruments permitted under applicable regulations. There is a risk that assets deposited by the Fund with any swaps or futures clearing broker as margin for futures contracts or cleared swaps may, in certain circumstances, be used to satisfy losses of other clients of the Fund’s clearing broker. In addition, the assets of the Fund might not be fully protected in the event of the Fund’s clearing broker’s bankruptcy, as the Fund would be limited to recovering only a pro rata share of all available funds segregated on behalf of the clearing broker’s customers for the relevant account class.

Similarly, the CEA requires a clearing organization approved by the CFTC as a derivatives clearing organization to segregate all funds and other property received from a clearing member’s clients in connection with domestic cleared derivative contracts from any funds held at the clearing organization to support the clearing member’s proprietary trading. Nevertheless, all customer funds held at a clearing organization in connection with any futures contracts are held in a commingled omnibus account and are not identified to the name of the clearing member’s individual customers. All customer funds held at a clearing organization with respect to cleared swaps of customers of a clearing broker are also held in an omnibus account, but CFTC rules require that the clearing broker notify the clearing organization of the amount of the initial margin provided by the clearing broker to the clearing organization that is attributable to each customer. With respect to futures and options contracts, a clearing organization may use assets of a non-defaulting customer held in an omnibus account at the clearing organization to satisfy payment obligations of a defaulting customer of the clearing member to the clearing organization. With respect to cleared swaps, a clearing organization generally cannot do so, but may do so if the clearing member does not provide accurate reporting to the clearing organization as to the attribution of margin among its clients. Also, since clearing brokers generally provide to clearing organizations the net amount of variation margin required for cleared swaps for all of its customers in the aggregate, rather than the gross amount of each customer, the Fund is subject to the risk that a clearing organization will not make variation margin payments owed to the Fund if another customer of the clearing member has suffered a loss and is in default. As a result, in the event of a default or the clearing broker’s other clients or the clearing broker’s failure to extend its own funds in connection with any such default, the Fund may not be able to recover the full amount of assets deposited by the clearing broker on behalf of the Fund with the clearing organization.

Borrowing risk

In addition to borrowing for leverage (see “Leverage”), the Fund may borrow for temporary or emergency purposes, to pay dividends, repurchase its shares, or clear portfolio transactions. Borrowing

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may exaggerate changes in the NAV of the Fund’s shares and may affect the Fund’s net income. When the Fund borrows money, it must pay interest and other fees, which will reduce the Fund’s returns if such costs exceed the returns on the portfolio investments purchased or retained with such borrowings. Any such borrowings are intended to be temporary. However, under certain market circumstances, such borrowings might be outstanding for longer periods of time.

Duration risk

Duration is the sensitivity, expressed in years, of the price of a fixed-income investment to changes in the general level of interest rates (or yields). Investments with longer durations tend to be more sensitive to interest rate (or yield) changes, which typically corresponds to increased volatility and risk, than investments with shorter durations. For example, if a security or portfolio has a duration of three years and interest rates increase by 1%, then the investment or portfolio would decline in value by approximately 3%. Duration differs from maturity in that it considers potential changes to interest rates, and an investment’s coupon payments, yield, price and par value and call features, in addition to the amount of time until the investment matures. The duration of an investment will be expected to change over time with changes in market factors and time to maturity.

Senior loan agent risk

A financial institution’s employment as an Agent under a senior loan might be terminated in the event that it fails to observe a requisite standard of care or becomes insolvent. A successor Agent would generally be appointed to replace the terminated Agent, and assets held by the Agent under the loan agreement would likely remain available to holders of such indebtedness. However, if assets held by the terminated Agent for the benefit of the Fund were determined to be subject to the claims of the Agent’s general creditors, the Fund might incur certain costs and delays in realizing payment on a senior loan or loan participation and could suffer a loss of principal and/or interest. In situations involving other interposed financial institutions (e.g., an insurance company or government agency) similar risks may arise.

Asset segregation risk

Certain portfolio management techniques, such as, among other things, using reverse repurchase agreements, purchasing investments on a when-issued or delayed delivery basis or entering into swap agreements, futures contracts or other derivative transactions, create leverage or its effect, and may be considered “senior securities’” (as that term is defined under the 1940 Act). To avoid having these instruments considered “senior securities,” the Fund may maintain liquid assets with its custodian in an amount with a value at least equal (on a daily market value basis or notional value basis, as applicable) to the aggregate amount of its obligations under these types of leveraging transactions (often referred to as “asset segregation”), enter into offsetting transactions, or otherwise “cover” certain transactions, in accordance with the 1940 Act, the rules thereunder, and applicable positions of the SEC and its staff. The SEC recently adopted new Rule 18f-4 under the 1940 Act, which imposes limits on replaces the asset segregation framework previously used by funds to comply with Section 18 of the 1940 Act, among other requirements. The Fund will comply with the new rule’s requirements on or before the SEC’s compliance date in 2022. See “Portfolio Composition and Other Information—Asset Segregation” above. In the event that the Fund is unable to maintain sufficient assets, or otherwise “cover,” any open positions, a portion or all of these instruments will be classified as a “senior security” for 1940 Act purposes and be subject to certain limitations on “senior securities” under the 1940 Act. See “Leverage” above. The Fund may be restricted in its use of assets that are maintained for “asset segregation,” or

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committed as “cover,” for certain other purposes, which could result in the Fund earning a lower return on its portfolio than it might otherwise earn if it did not have to maintain those assets in respect of, or otherwise “cover,” such portfolio positions. To the extent the Fund’s assets are maintained or committed as “cover,” it could limit the Fund’s investment flexibility. Maintaining assets and covering positions will not limit or offset losses on the related leveraging positions. See “—Portfolio Level Risks—Derivatives Risks.”

Special risks related to certain municipal obligations

Municipal leases and certificates of participation involve special risks not normally associated with general obligations or revenue bonds. Leases and installment purchase or conditional sale contracts (which normally provide for title to the leased asset to pass eventually to the governmental issuer) have evolved as a means for governmental issuers to acquire property and equipment without meeting the constitutional and statutory requirements for the issuance of debt. The debt issuance limitations are deemed to be inapplicable because of the inclusion in many leases or contracts of “non-appropriation” clauses that relieve the governmental issuer of any obligation to make future payments under the lease or contract unless money is appropriated for such purpose by the appropriate legislative body. In addition, such leases or contracts may be subject to the temporary abatement of payments in the event that the governmental issuer is prevented from maintaining occupancy of the leased premises or utilizing the leased equipment. Although the obligations may be secured by the leased equipment or facilities, the disposition of the property in the event of non-appropriation or foreclosure might prove difficult, time consuming and costly, and may result in a delay in recovering or the failure to fully recover the Fund’s original investment. In the event of non-appropriation, the issuer would be in default and taking ownership of the assets may be a remedy available to the Fund, although the Fund does not anticipate that such a remedy would normally be pursued.

Certificates of participation involve the same risks as the underlying municipal leases. In addition, the Fund may be dependent upon the municipal authority issuing the certificates of participation to exercise remedies with respect to the underlying securities. Certificates of participation also entail a risk of default or bankruptcy, both of the issuer of the municipal lease and also the municipal agency issuing the certificate of participation.

Cybersecurity risk

Technology, such as the internet, has become more prevalent in the course of business, and as such, the Fund and its service providers are susceptible to operational and information security risk resulting from cyber incidents. Cyber incidents refer to both intentional attacks and unintentional events including: processing errors, human errors, technical errors including computer glitches and system malfunctions, inadequate or failed internal or external processes, market-wide technical-related disruptions, unauthorized access to digital systems (through “hacking” or malicious software coding), computer viruses, and cyber-attacks which shut down, disable, slow or otherwise disrupt operations, business processes or website access or functionality (including denial of service attacks). Cyber incidents could adversely impact the Fund and cause the Fund to incur financial loss and expense, as well as face exposure to regulatory penalties, reputational damage, and additional compliance costs associated with corrective measures. Cyber incidents may cause the Fund or its service providers to lose proprietary information, suffer data corruption, lose operational capacity or fail to comply with applicable privacy and other laws. Among other potentially harmful effects, cyber incidents also may result in theft, unauthorized monitoring and failures in the physical infrastructure or operating systems that support the Fund and its service providers. In addition, substantial costs may be incurred in order to prevent any

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cyber incidents in the future. While the Fund’s service providers have established business continuity plans in the event of, and risk management systems to prevent, such cyber incidents, there are inherent limitations in such plans and systems including the possibility that certain risks have not been identified. Furthermore, the Fund cannot control the cybersecurity plans and systems put in place by its service providers or any other third parties whose operations may affect the Fund.

Certain affiliations

Certain broker-dealers may be considered to be affiliated persons of the Fund, Nuveen Fund Advisors, Nuveen Asset Management, Nuveen and/or TIAA. Absent an exemption from the SEC or other regulatory relief, the Fund generally is precluded from effecting certain principal transactions with affiliated brokers, and its ability to purchase investments being underwritten by an affiliated broker or a syndicate including an affiliated broker, or to utilize affiliated brokers for agency transactions, is subject to restrictions. The Fund has not applied for and does not currently intend to apply for such relief. This could limit the Fund’s ability to engage in investments transactions and take advantage of market opportunities. In addition, unless and until the underwriting syndicate is broken (i.e., the underwriting syndicate responsible for the initial pricing, marketing and distribution of the securities is disbanded) in connection with the initial public offering of the Common Shares, the Fund will be precluded from effecting principal transactions with brokers who are members of the syndicate.

Management of the Fund

TRUSTEES AND OFFICERS

The Board of Trustees is responsible for the Fund’s management, including supervision of the duties performed by Nuveen Fund Advisors and Nuveen Asset Management. The names and business addresses of the Fund’s trustees and officers and their principal occupations and other affiliations during the past five years are set forth under “Management of the Fund” in the SAI.

INVESTMENT ADVISER AND SUBADVISER

The Investment Adviser

Nuveen Fund Advisors, a registered investment adviser, is responsible for overseeing the Fund’s overall investment strategy and its implementation. Nuveen Fund Advisors also is responsible for the ongoing monitoring of Nuveen Asset Management, overseeing the Fund’s use of leverage, managing the Fund’s business affairs and providing certain clerical, bookkeeping and other administrative services to the Fund. Nuveen Fund Advisors is located at 333 West Wacker Drive, Chicago, IL 60606. Nuveen Fund Advisors is an indirect subsidiary of Nuveen, the investment management arm of TIAA. TIAA is a life insurance company founded in 1918 by the Carnegie Foundation for the Advancement of Teaching and is the companion organization of College Retirement Equities Fund. As of December 31, 2020, Nuveen managed approximately $1.2 trillion in assets, of which approximately $156.5 billion was managed by Nuveen Fund Advisors.

Subadviser

Nuveen Asset Management, a registered investment adviser, is the Fund’s subadviser responsible for investing the Fund’s Managed Assets. Nuveen Asset Management is a subsidiary of Nuveen Fund Advisors.

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Portfolio Managers

Stephen Liberatore, Jessica Zarzycki and Kristal Seales will serve as the Fund’s portfolio managers.

Stephen M. Liberatore, CFA, is the lead portfolio manager for Nuveen Asset Management’s fixed income strategies that incorporate ESG criteria and Impact investments, including those that comprise our Core Impact Bond, Short Duration Impact Bond and Green Bond composites. He is also a member of the Investment Committee.

Mr. Liberatore serves on the ICMA Green Bond Principles Advisory Council and was a member of the initial executive committee. He joined TIAA in 2004. He is a member of the UN Capital Development Fund’s working group on Climate Insurance Linked Resilient Infrastructure Finance and serves on the UN’s Joint Sustainable Development Goals Fund’s Blue Economy Investor Advisory Group. He also serves on S&P’s Global Ratings ESG Leadership Council. He is a frequent speaker at conferences and a subject matter expert across media outlets, such as Bloomberg, CNBC, The Economist and The Wall Street Journal. He and his team were awarded “Investor of the Year” at Environmental Finance’s 2020 Bond Awards. Before joining the firm in 2004, he held roles at Nationwide Mutual Insurance and Protective Life.

Mr. Liberatore graduated with a B.S. from the State University of New York at Buffalo and an M.B.A. in Finance and Operations from Wake Forest University. He holds the CFA designation and is a member of the CFA Society of North Carolina and the CFA Institute.

Jessica Zarzycki, CFA, is a Portfolio Manager of the Fund and a senior director and research analyst for Nuveen Asset Management. Ms. Zarzycki is a member of the Global Sovereigns team and is responsible for sovereigns and local markets in both Western and Eastern Europe. Ms. Zarzycki also supports Nuveen Asset Management’s responsible investing fixed income initiatives. Previously, she covered developed market sovereigns, agencies and agency MBS at TIAA. Ms. Zarzycki joined TIAA in 2008. Ms. Zarzycki has 12 years of industry experience. Prior to joining TIAA, she worked at Citi Global Wealth Management (GWM) where she helped to manage the liquidity and risk of GWM balance sheet. Ms. Zarzycki holds a B.S. in business administration with a focus in finance from The Ohio State University. She holds the Chartered Financial Analyst^® designation and is a member of the CFA Society New York and the CFA^® Institute.

Kristal Seales, CFA, is a Portfolio Manager of the Fund and is also a portfolio manager for Nuveen Asset Management’s leveraged finance team with a focus on the management of high yield ESG mandates. She joined Nuveen Asset Management in 2001 and has worked on investing in corporate private placements, project finance, lease finance and investment-grade public debt offerings across a variety of industries. Since 2009, she has been a member of Nuveen Asset Management’s leveraged finance team and was previously a senior research analyst responsible for covering the gaming, leisure and retail industries. She also oversees the risk and analytics function for Nuveen Asset Management’s global fixed income team. She is a member of Nuveen Asset Management’s Investment Committee, which establishes investment policy for all global fixed income products. She graduated with a B.S. in Operations Research and Industrial Engineering from Cornell University. She holds the CFA designation, is a member of the CFA Institute and the New York Society of Security Analysts.

Additional information about the portfolio managers’ compensation, other accounts managed by Nuveen Fund Advisors and Nuveen Asset Management, and other information is provided in the SAI. The SAI is available free of charge by calling (800) 257-8787 or by visiting Nuveen Investment’s website at www.nuveen.com.

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Management of the Fund

INVESTMENT MANAGEMENT AND SUBADVISORY AGREEMENTS

Pursuant to an investment management agreement between Nuveen Fund Advisors and the Fund, the Fund will pay Nuveen Fund Advisors an annual management fee, payable monthly in arrears, in a maximum amount equal to 1.00% of the Fund’s average daily Managed Assets. This maximum fee is equal to the sum of a fund-level fee, with breakpoints based only on the amount of assets within the Fund, and a complex-level fee, with breakpoints based upon the aggregate amount of all eligible assets of all Nuveen Funds, as described below, according to the following schedule.

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Based on eligible assets as of December 31, 2020, the complex-level fee would be 0.1557% of Managed Assets, and the total annual management fee to Nuveen Fund Advisors would be 0.9557% of Managed Assets.

In addition to Nuveen Fund Advisors’ management fee, the Fund pays all other costs and expenses of its operations, including compensation of its trustees (other than those affiliated with Nuveen), custodian, transfer agency and dividend disbursing expenses, legal fees, expenses of its independent registered accounting firm, expenses of repurchasing Common Shares, expenses of preparing, printing and distributing shareholder reports, notices, proxy statements and reports to governmental agencies, listing fees and taxes, if any. All fees and expenses are accrued daily and deducted before payment of distributions to shareholders.

Separately, pursuant to an investment sub-advisory agreement between Nuveen Fund Advisors and Nuveen Asset Management Nuveen Fund Advisors will pay Nuveen Asset Management a portfolio management fee equal to 50% of the investment management fee paid on the Fund’s average daily Managed Assets.

The basis for the Board of Trustees’ initial approval of the Fund’s investment management agreement and sub-advisory agreement will be provided in the Fund’s initial shareholder report. The basis for subsequent continuations of the Fund’s investment management agreement and sub-advisory agreement will be provided in annual or semiannual reports to shareholders for the periods during which such continuations occur.

Net asset value

The Fund’s NAV is determined as of the close of regular session trading (normally 4:00 p.m. Eastern Time) on each day the New York Stock Exchange (“NYSE”) is open for business. The Fund’s NAV is calculated by taking the market value of the Fund’s total assets, including interest or dividends accrued but not yet collected, less all liabilities, and dividing by the total number of Common Shares outstanding. The result, rounded to the nearest cent, is the NAV. All valuations are subject to review by the Fund’s Board of Trustees or its delegate.

In determining the Fund’s NAV, portfolio instruments generally are valued using prices provided by independent pricing services or obtained from other sources, such as broker-dealer quotations. Exchange-traded instruments generally are valued at the last reported sales price or official closing price on an exchange, if available. Independent pricing services typically value non-exchange-traded instruments utilizing a range of market-based inputs and assumptions. For example, when available, pricing services may utilize inputs such as benchmark yields, reported trades, broker-dealer quotes, spreads, and transactions for comparable instruments. In pricing certain instruments, the pricing services may consider information about an instrument’s issuer or market activity provided by Nuveen Fund Advisors or Nuveen Asset Management. Pricing service valuations of non-exchange-traded instruments represent the

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service’s good faith opinion as to what the holder of an instrument would receive in an orderly transaction for an institutional round lot position under current market conditions. It is possible that these valuations could be materially different from the value that the Fund realizes upon the sale of an instrument. Non-U.S. investments and currency are valued in U.S. dollars based on non-U.S. currency exchange rate quotations supplied by an independent quotation service.

For non-U.S. traded investments whose principal local markets close before the close of the NYSE, the Fund may adjust the local closing price based upon such factors as developments in non-U.S. markets, the performance of U.S. securities markets and the performance of instruments trading in U.S. markets that represent non-U.S. investments. The Fund may rely on an independent fair valuation service in making any such fair value determinations. If the Fund holds portfolio instruments that are primarily listed on non-U.S. exchanges, the value of such instruments may change on days when the Fund’s NAV is calculated.

If a price cannot be obtained from a pricing service or other pre-approved source, or if, in the judgment of Nuveen Fund Advisors, a price is unreliable, a portfolio instrument will be valued at its fair value as determined in good faith by the Board of Trustees or its appointee. Nuveen Fund Advisors may determine that a price is unreliable in various circumstances. For example, a price may be deemed unreliable if it has not changed for an identified period of time, or has changed from the previous day’s price by more than a threshold amount, and recent transactions and/or broker dealer price quotations differ materially from the price in question.

The Board of Trustees has adopted valuation procedures for the Fund and has appointed Nuveen Fund Advisors’ Valuation Committee (the “Valuation Committee”) with the day-to-day responsibility for fair value determinations. All fair value determinations made by the Valuation Committee are subject to review and ratification by the Board of Trustees. As a general principle, the fair value of a portfolio instrument is the amount that an owner might reasonably expect to receive upon the instrument’s current sale. A range of factors and analysis may be considered when determining fair value, including relevant market data, interest rates, credit considerations and/or issuer specific news. However, fair valuation involves subjective judgments and it is possible that the fair value determined for a portfolio instrument may be materially different from the value that could be realized upon the sale of that instrument. The SEC recently adopted new Rule 2a-5 under the 1940 Act, which establishes requirements for determining fair value in good faith for purposes of the 1940 Act. The Fund will comply with the new rule’s valuation requirements on or before the SEC’s compliance date in 2022.

Distributions

The Fund will pay monthly distributions stated in terms of a fixed number of cents per Common Share. The Fund’s distributions will be composed of net investment income and supplemental amounts generally representing realized capital gains and/or a return of capital. The return of capital component of a Fund distribution may (but will not necessarily) represent unrealized capital gains. A return of capital is a non-taxable distribution of a portion of the Fund’s capital. When the Fund returns (including unrealized capital appreciation) exceed distributions, return of capital may represent portfolio gains earned, but not realized as a taxable capital gain. In periods when the Fund returns fall short of distributions, a return of capital will represent a portion of a shareholder’s original principal. Such shortfall may be offset during other time periods over the life of their investment (previous or subsequent) when the Fund’s total return exceeds distributions. A return of capital reduces a shareholder’s tax cost basis (but not below zero) in Fund shares, which would result in more taxable gain or less taxable loss when the shareholder sells their shares. Monthly distributions, including such supplemental amounts, represent the potential for capital

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appreciation and are sometimes referred to as “managed distributions.” The Fund’s managed distribution policy is pursuant to an exemptive order issued by the SEC, which permits the Fund to distribute long-term capital gains to shareholders more frequently than once per year. The Fund will seek to establish a Common Share distribution rate that roughly corresponds to Nuveen Fund Advisors’ projections of the total return that could reasonably be expected to be generated by the Fund’s Common Shares over an extended period of time, although the distribution rate will not be solely dependent on the amount of income earned or capital gains realized. Nuveen Fund Advisors, in making such projections, may consider long-term historical returns of the types of investments in the portfolio, current and expected portfolio composition, current market sentiment, and a variety of other factors. Distributions can only be made after paying any interest and required principal payments on borrowings, if any, and any accrued dividends to preferred shareholders, if any. The Fund expects to declare its initial Common Share distribution within approximately 30 days following the completion of this offering.

If, for any monthly distribution, net investment income and net realized capital gains were less than the amount of the distribution, the difference would be distributed from the Fund’s assets. In order to raise cash for such distributions, the Fund expects to sell portfolio investments. Such portfolio sales may occur at a time when independent investment judgment might not dictate such action. The Fund may make additional distributions, or include within the Fund’s final distribution for each calendar year, amounts representing any remaining net investment income and net realized capital gains not distributed during the year.

The Fund’s actual financial performance will likely vary significantly from month-to-month and from year-to-year, and there may be extended periods when the distribution rate will exceed the Fund’s actual total returns. The Fund’s projected or actual distribution rate is not a prediction of what the Fund’s actual total returns will be over any specific future period.

As portfolio and market conditions change, the portion of the Fund’s distributions composed of net investment income, realized capital gain and return of capital will vary. The Fund may also change the rate of distributions on the Common Shares and the Fund’s distribution policy in response to changes in portfolio and market conditions. Shareholders should not assume that the source of a distribution from the Trust is net income or profit. To the extent that the total return of the Fund’s overall strategy exceeds the distribution rate for an extended period, the Fund may be in a position either to increase the distribution rate or to distribute supplemental amounts to shareholders, or both. Conversely, if the total return of the Fund’s overall strategy is less than the distribution rate for an extended period of time, the Fund will effectively be drawing upon its assets to meet payments prescribed by its distribution policy. Similarly, for tax purposes such distributions by the Fund may consist in part of a return of capital to Common Shareholders. The exact tax characteristics of the Fund’s Common Share distributions will not be known until after the Fund’s fiscal year-end. Common Shareholders should not confuse a return of capital distribution with “dividend yield” or “total return.” At the same time that it pays a monthly distribution, the Fund will post on its website (www.nuveen.com/cef), and make available in written form to holders of its Common Shares, a notice of the estimated sources and tax characteristics of the Fund’s distributions (i.e., what percentage of the distributions is estimated to constitute ordinary income, short-term capital gains, long-term capital gains, and/or a non-taxable return of capital) on a year-to-date basis, in compliance with a federal securities law requirement that any fund paying a distribution from sources other than net investment income disclose to shareholders the respective portion attributable to such other sources. These estimates may be based on certain assumptions about the Fund’s expected investment returns and the realization of net gains, if any, over the remaining course of the year. These estimates may, and likely will, vary over time based on the activities of the Fund and changes in the value of portfolio investments. The final determination of the source and tax

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characteristics of all distributions will be made after December 31 in each year, and reported to Common Shareholders on Form 1099-DIV early the following year.

As explained more fully below in “Tax Matters,” the Fund intends to distribute to Common Shareholders any net capital gain (which is the excess of net long-term capital gain over net short-term capital loss) for each taxable year through its managed distributions or, alternatively, to retain all or a portion of the year’s net capital gain and pay U.S. federal income tax on the retained gain. Each Common Shareholder of record as of the end of the Fund’s taxable year will include in income for U.S. federal income tax purposes, as long-term capital gain, their share of any retained gain, will be deemed to have paid their proportionate share of the tax paid by the Fund on such retained gain (provided that the Fund designates such retained gain for inclusion by such Common Shareholder), and will be entitled to an income tax credit or refund for that share of the tax. The Fund may treat any retained capital gain amount as a substitute for equivalent cash distributions. In addition, the Fund may make total Common Share distributions during a given calendar year in an amount that exceeds the Fund’s net investment income and net realized long-term capital gains for that calendar year, in which case the excess will generally be treated by Common Shareholders as return of capital for tax purposes. A return of capital reduces a shareholder’s tax basis (but not below zero), which would result in more taxable gain or less taxable loss when the shareholder sells their shares. This may cause the shareholder to pay taxes even if he or she sells shares for less than the original price.

The Fund reserves the right to change its distribution policy and the basis for establishing the rate of its monthly distributions at any time upon notice to Common Shareholders, upon a determination by the Fund’s Board of Trustees that such change is in the best interests of the Fund and its Common Shareholders.

Dividend reinvestment plan

If your Common Shares are registered directly with the Fund or if you hold your Common Shares with a brokerage firm that participates in the Fund’s Dividend Reinvestment Plan (the “Plan”), your distributions, including any capital gain distributions, will automatically be reinvested in additional Common Shares under the Plan unless you request otherwise. If you elect not to participate in the Plan, or are not eligible to participate because your brokerage firm does not participate in the Plan, you will receive all distributions in cash paid by check mailed directly to you or your brokerage firm by Computershare Inc. and Computershare, as dividend paying agent. The tax consequences of a distribution are the same regardless of whether such distribution is reinvested or received in cash. See “Tax Matters.”

Under the Plan, the number of Common Shares you will receive will be determined as follows:

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Dividend reinvestment plan

You may withdraw from the Plan at any time by giving written notice to the Plan Agent. If you withdraw or the Plan is terminated, you will receive whole shares in your account under the Plan and you will receive a cash payment for any fraction of a share in your account. If you wish, the Plan Agent will sell your shares and send you the proceeds, minus brokerage commissions and a $2.50 service fee.

The Plan Agent maintains all shareholders’ accounts in the Plan and gives written confirmation of all transactions in the accounts, including information you may need for tax records. Common Shares in your account will be held by the Plan Agent in non-certificated form. Any proxy you receive will include all Common Shares you have received under the Plan.

There is no brokerage charge for reinvestment of your dividends or distributions in Common Shares. However, all participants will pay a pro rata share of brokerage commissions incurred by the Plan Agent when it makes open market purchases.

Automatically reinvesting dividends and distributions does not mean that you do not have to pay income taxes due upon receiving dividends and distributions.

As noted above, if you hold your Common Shares with a brokerage firm that does not participate in the Plan, you will not be able to participate in the Plan and any dividend reinvestment may be effected on different terms than those described above. Consult your financial advisor for more information.

The Fund reserves the right to amend or terminate the Plan if in the judgment of the Board of Trustees the change is warranted. There is no direct service charge to participants in the Plan; however, the Fund reserves the right to amend the Plan to include a service charge payable by the participants. Additional information about the Plan may be obtained from Computershare, P.O. Box 505000, Louisville, Kentucky, 40233-5000, (800) 257-8787.

Description of shares and debt

COMMON SHARES

The Fund’s Declaration of Trust authorizes the issuance of an unlimited number of Common Shares. The Common Shares being offered have a par value of $.01 per share and have equal rights to the payment of dividends and the distribution of assets upon liquidation of the Fund. The Common Shares being offered will, when issued, be fully paid and, subject to matters discussed under “Certain Provisions in the Declaration of Trust and By-Laws,” non-assessable, and will have no preemptive or conversion rights, except as the Board of Trustees may otherwise determine, or rights to cumulative voting. The Declaration of Trust provides that each whole Common Share shall be entitled to one vote as to any matter on which it is entitled to vote and each fractional Common Share shall be entitled to a proportionate fractional vote. If the Fund issues Preferred Shares, the Common Shareholders will not be entitled to receive any cash distributions from the Fund unless all accrued dividends on Preferred Shares

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have been paid, and unless asset coverage (as defined in the 1940 Act) with respect to Preferred Shares would be at least 200% after giving effect to the distributions. The Fund pays monthly dividends, typically on the first business day of the following month.

It is anticipated that the Fund’s Common Shares will be approved for listing on the NYSE, subject to notice of issuance, under the ticker symbol “NPCT.” The Fund intends to hold annual meetings of shareholders so long as the Common Shares are listed on a national securities exchange and such meetings are required as a condition to such listing. The Fund will not issue share certificates.

Unlike open-end funds, closed-end funds like the Fund do not continuously offer shares and do not provide daily redemptions. Rather, if a Common Shareholder determines to buy additional Common Shares or sell shares already held, the Common Shareholder may conveniently do so by trading on the exchange through a broker or otherwise. Shares of closed-end investment companies may frequently trade on an exchange at prices lower than NAV. Shares of closed-end investment companies like the Fund have, during some periods, traded at prices higher than NAV and, during other periods, have traded at prices lower than NAV. Because the market value of the Common Shares may be influenced by such factors as dividend levels (which are in turn affected by expenses), dividend stability, NAV, relative demand for and supply of such shares in the market, general market and economic circumstances, and other factors beyond the Fund’s control, the Fund cannot guarantee you that Common Shares will trade at a price equal to or higher than NAV in the future. See “Repurchase of Common Shares; Conversion to Open-End Fund” in this prospectus and in the SAI.

The following provides information about the Fund’s outstanding Common Shares as of March 15, 2021:

PREFERRED SHARES

The Fund’s Declaration of Trust authorizes the issuance of an unlimited number of Preferred Shares in one or more classes or series, with rights as determined by the Board of Trustees, by action of the Board of Trustees without the approval of the Common Shareholders. The terms of any Preferred Shares that may be issued by the Fund may be the same as, or different from, the terms described below, subject to applicable law and the Declaration of Trust.

Under the 1940 Act, the Fund is not permitted to issue “senior securities” that are Preferred Shares if, immediately after the issuance of Preferred Shares, the asset coverage ratio would be less than 200%. See “Leverage.” Additionally, the Fund will generally not be permitted to purchase any of its Common Shares or declare dividends (except a dividend payable in Common Shares) or other distributions on its Common Shares unless, at the time of such purchase or declaration, the asset coverage ratio with respect to such Preferred Shares, after taking into account such purchase or distribution, is at least 200%.

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Any Preferred Shares issued by the Fund will have priority over the Common Shares. For so long as any Preferred Shares are outstanding, the Fund will not: (1) declare or pay any dividend or other distribution (other than a dividend or distribution paid in Common Shares) in respect of the Common Shares, (2) call for redemption, redeem, purchase or otherwise acquire for consideration any Common Shares, or (3) pay any proceeds of the liquidation of the Fund in respect of the Common Shares, unless, in each case, (A) immediately thereafter, the Fund shall be in compliance with the 200% asset coverage limitations set forth under the 1940 Act after deducting the amount of such dividend or other distribution or redemption or purchase price or liquidation proceeds and (B) all cumulative dividends and other distributions of shares of all series of Preferred Shares of the Fund due on or prior to the date of the applicable dividend, distribution, redemption, purchase or acquisition shall have been declared and paid.

Distribution preference

Any Preferred Shares would have complete priority over the Common Shares as to distribution of assets.

Liquidation preference

In the event of any voluntary or involuntary liquidation, dissolution or winding up of the affairs of the Fund, holders of Preferred Shares would be entitled to receive a preferential liquidating distribution (expected to equal the original purchase price per share plus accumulated and unpaid dividends thereon, whether or not earned or declared) before any distribution of assets is made to Common Shareholders. After payment of the full amount of the liquidating distribution to which they are entitled, holders of Preferred Shares will not be entitled to any further participation in any distribution of assets by the Fund. A consolidation or merger of the Fund with or into another entity or a sale of all or substantially all of the assets of the Fund shall not be deemed to be a liquidation, dissolution or winding up of the Fund.

Voting rights

In connection with any issuance of Preferred Shares, the Fund must comply with Section 18(i) of the 1940 Act, which requires, among other things, that Preferred Shares be voting shares and have equal voting rights with Common Shares. Except as otherwise indicated in the SAI and except as otherwise required by applicable law, holders of Preferred Shares would vote together with Common Shareholders as a single class.

In connection with the election of the Fund’s trustees, holders of Preferred Shares, voting as a separate class, would be entitled to elect two of the Fund’s trustees, and the remaining trustees would be elected by Common Shareholders and holders of Preferred Shares, voting together as a single class. In addition, if at any time dividends on the Fund’s outstanding Preferred Shares would be unpaid in an amount equal to two full years’ dividends thereon, the holders of all outstanding Preferred Shares, voting as a separate class, would be entitled to elect a majority of the Fund’s trustees until all dividends in arrears have been paid or declared and set apart for payment.

The affirmative vote of the holders of a majority of the Fund’s outstanding Preferred Shares of any class or series, as the case may be, voting as a separate class, would be required to, among other things, (1) take certain actions that would affect the preferences, rights, or powers of such class or series or (2) authorize or issue any class or series ranking prior to the Preferred Shares. Except as may otherwise be required by law, (1) the affirmative vote of the holders of at least two-thirds of the Fund’s Preferred Shares outstanding at the time, voting as a separate class, would be required to approve any conversion of the Fund from a closed-end to an open-end investment company and (2) the affirmative vote of the

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Description of shares and debt

holders of at least two-thirds of the outstanding Preferred Shares, voting as a separate class, would be required to approve any plan of reorganization (as such term is used in the 1940 Act) adversely affecting such shares; provided however, that such separate class vote would be a majority vote if the action in question has previously been approved, adopted or authorized by the affirmative vote of two-thirds of the total number of trustees fixed in accordance with the Declaration of Trust or the By-laws. The affirmative vote of the holders of a majority of the outstanding Preferred Shares, voting as a separate class, would be required to approve any action not described in the preceding sentence requiring a vote of security holders under Section 13(a) of the 1940 Act including, among other things, changes in the Fund’s investment objective or changes in the investment restrictions described as fundamental policies under “Investment Restrictions” in the SAI. The class or series vote of holders of Preferred Shares described above would in each case be in addition to any separate vote of the requisite percentage of Common Shares and Preferred Shares necessary to authorize the action in question.

The foregoing voting provisions would not apply with respect to the Fund’s Preferred Shares if, at or prior to the time when a vote was required, such shares would have been (1) redeemed or (2) called for redemption and sufficient funds would have been deposited in trust to effect such redemption.

Redemption, purchase and sale of preferred shares

The terms of the Preferred Shares may provide that they are redeemable by the Fund at certain times, in whole or in part, at the original purchase price per share plus accumulated dividends, that the Fund may tender for or purchase Preferred Shares and that the Fund may subsequently resell any shares so tendered for or purchased. Any redemption or purchase of Preferred Shares by the Fund would reduce the leverage applicable to Common Shares, while any resale of such shares by the Fund would increase such leverage.

SENIOR SECURITIES REPRESENTING INDEBTEDNESS

The Fund’s Declaration of Trust authorizes the Fund, without approval of the Common Shareholders, to borrow money. In this connection, the Fund may issue notes or other evidence of indebtedness (including bank borrowings or commercial paper) and may secure any such debt by mortgaging, pledging or otherwise subjecting as security the Fund’s assets. Under the requirements of the 1940 Act, the Fund, immediately after issuing any such senior securities debt, must have an “asset coverage” of at least 300%. With respect to any such debt, asset coverage means the ratio which the value of the total assets of the Fund, less all liabilities and indebtedness not represented by senior securities (as defined in the 1940 Act), bears to the aggregate amount of such borrowing represented by senior securities issued by the Fund. Certain types of debt may result in the Fund being subject to certain restrictions imposed by guidelines of one or more rating agencies which may issue ratings for commercial paper or notes issued by the Fund. Such restrictions may be more stringent than those imposed by the 1940 Act.

The rights of lenders to the Fund to receive interest on and repayment of principal of any such debt will be senior to those of the Common Shareholders, and the terms of any such debt may contain provisions which limit certain activities of the Fund, including the payment of dividends to Common Shareholders in certain circumstances. Further, the 1940 Act does (in certain circumstances) grant to the lenders to the Fund certain voting rights in the event of default in the payment of interest on or repayment of principal. Any debt will likely be ranked senior or equal to all other existing and future debt of the Fund.

Should the Fund have outstanding any “senior securities representing indebtedness,” the Fund may not purchase, redeem or acquire any of its Common Shares or Preferred Shares unless at the time of such purchase, redemption, or acquisition, the asset coverage of such senior securities representing

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Description of shares and debt

indebtedness pursuant to the 1940 Act (determined after deducting the acquisition price of such Common or Preferred Shares) is at least 300%. Additionally, the Fund will generally not be permitted to declare dividends or other distributions on its Common Shares unless, at the time of such declaration or distribution, the asset coverage applicable to such senior securities representing indebtedness pursuant to the 1940 Act (determined after deducting the dividend or distribution amount) is at least 300%. Further, the 1940 Act (in certain circumstances) grants to the holders of such senior securities representing indebtedness (1) the right to declare a default, and (2) certain voting rights, in the event that specified asset coverage levels on such senior debt securities are not maintained. Specifically, in accordance with Section 18 of the 1940 Act, it shall be deemed an event of default if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for 24 consecutive calendar months. In addition, senior debt security holders will be permitted to elect at least a majority of the Fund’s trustees if the asset coverage of such senior debt securities falls below 100% on the last business day of each month for a 12 calendar month period. These voting rights will continue until such asset coverage equals at least 110% on the last business day of each month for three consecutive calendar months. The provisions described in this paragraph do not apply, however, to bank or other privately arranged debt that is not intended to be publicly distributed.

Inter-fund borrowing and lending

The SEC has granted an exemptive order permitting the Nuveen registered open-end and closed-end funds, including the Fund, to participate in an inter-fund lending facility whereby those funds may directly lend to and borrow money from each other for temporary purposes (e.g., to satisfy redemption requests or when a sale of securities “fails,” resulting in an unanticipated cash shortfall) (the “Inter-Fund Program”). The closed-end Nuveen funds will participate only as lenders, and not as borrowers, in the Inter-Fund Program because such closed-end funds rarely, if ever, need to borrow cash to meet redemptions. The Inter-Fund Program is subject to a number of conditions, including, among other things, the requirements that (1) no fund may borrow or lend money through the Inter-Fund Program unless it receives a more favorable interest rate than is typically available from a bank or other financial institution for a comparable transaction; (2) no fund may borrow on an unsecured basis through the Inter-Fund Program unless the fund’s outstanding borrowings from all sources immediately after the inter-fund borrowing total 10% or less of its total assets; provided that if the borrowing fund has a secured borrowing outstanding from any other lender, including but not limited to another fund, the inter-fund loan must be secured on at least an equal priority basis with at least an equivalent percentage of collateral to loan value; (3) if a fund’s total outstanding borrowings immediately after an inter-fund borrowing would be greater than 10% of its total assets, the fund may borrow through the inter-fund loan on a secured basis only; (4) no fund may lend money if the loan would cause its aggregate outstanding loans through the Inter-Fund Program to exceed 15% of its net assets at the time of the loan; (5) a fund’s inter-fund loans to any one fund shall not exceed 5% of the lending fund’s net assets; (6) the duration of inter-fund loans will be limited to the time required to receive payment for securities sold, but in no event more than seven days; and (7) each inter-fund loan may be called on one business days’ notice by a lending fund and may be repaid on any day by a borrowing fund. In addition, a Nuveen fund may participate in the Inter-Fund Program only if and to the extent that such participation is consistent with the fund’s investment objective and investment policies. The Board of Trustees of the Nuveen Funds is responsible for overseeing the Inter-Fund Program. The limitations detailed above and the other conditions of the SEC exemptive order permitting the Inter-Fund Program are designed to minimize the risks associated with Inter-Fund Program for both the lending fund and the borrowing fund. However, no borrowing or lending activity is without risk. When a fund borrows money from another fund, there is a risk that the loan could be called on one day’s notice or not renewed, in which case the fund may have to borrow from a bank at a higher rate or take other actions to payoff such loan if an inter-fund

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Description of shares and debt

loan is not available from another fund. Any delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs.

Certain provisions in the Declaration of Trust and By-laws

General

The By-laws of the Fund provide that by becoming a shareholder of the Fund, each shareholder shall be deemed to have agreed to be bound by the terms of the Declaration of Trust and By-laws. However, neither the Declaration of Trust nor the By-laws purport to require the waiver of a shareholder’s rights under the federal securities laws.

Shareholder and trustee liability

Under Massachusetts law, shareholders could, under certain circumstances, be held personally liable for the Fund’s obligations. However, the Declaration of Trust contains an express disclaimer of shareholder liability for the Fund’s debts or obligations and requires that notice of such limited liability be given in each agreement, obligation or instrument entered into or executed by the Fund or the trustees. The Declaration of Trust further provides for indemnification out of the Fund’s assets and property for all loss and expense of any shareholder held personally liable for the Fund’s obligations. Thus, the risk of a shareholder incurring financial loss on account of shareholder liability is limited to circumstances in which the Fund would be unable to meet its obligations. The Fund believes that the likelihood of such circumstances is remote.

The Declaration of Trust provides that the Fund’s obligations are not binding upon the Fund’s trustees individually, but only upon the Fund’s assets and property, and that the trustees shall not be liable for errors of judgment or mistakes of fact or law. Nothing in the Declaration of Trust, however, protects a trustee against any liability to which he or she would otherwise be subject by reason of willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of his or her office.

Anti-takeover provisions

The Declaration of Trust and By-laws include provisions that could limit the ability of other entities or persons to acquire control of the Fund or to convert the Fund to open-end status. The By-laws require the Board of Trustees be divided into three classes with staggered terms. See “Management of the Fund” in the SAI. This provision of the By-laws could delay for up to two years the replacement of a majority of the Board of Trustees. If Preferred Shares are issued, holders of Preferred Shares, voting as a separate class, will be entitled to elect two of the Fund’s trustees. In addition, the Declaration of Trust requires a vote by holders of at least two-thirds of the Common Shares and, if issued, Preferred Shares, voting together as a single class, except as described below, to authorize (1) a conversion of the Fund from a closed-end to an open-end investment company, (2) a merger or consolidation of the Fund, or a series or class of the Fund, with any corporation, association, trust or other organization or a reorganization of the Fund, or a series or class of the Fund, (3) a sale, lease or transfer of all or substantially all of the Fund’s assets (other than in the regular course of the Fund’s investment activities), (4) in certain circumstances, a termination of the Fund, or a series or class of the Fund or (5) a removal of trustees by shareholders, and then only for cause, unless, with respect to (1) through (4), such transaction has already been authorized by the affirmative vote of two-thirds of the total number of trustees fixed in accordance with the Declaration of Trust or the By-laws, in which case the affirmative vote of the

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Certain provisions in the Declaration of Trust and By-laws

holders of at least a majority of the Fund’s Common Shares and, if issued, Preferred Shares outstanding at the time, voting together as a single class, would be required; provided, however, that where only a particular class or series is affected (or, in the case of removing a trustee, when the trustee has been elected by only one class), only the required vote by the applicable class or series will be required. However, approval of shareholders would not be required for any transaction, whether deemed a merger, consolidation, reorganization or otherwise whereby the Fund issues shares in connection with the acquisition of assets (including those subject to liabilities) from any other investment company or similar entity. In the case of the conversion of the Fund to an open-end investment company, or in the case of any of the foregoing transactions constituting a plan of reorganization that adversely affects the holders of any outstanding Preferred Shares, the action in question also would require the affirmative vote of the holders of at least two-thirds of the Preferred Shares outstanding at the time, voting as a separate class, unless such transaction has already been authorized by the affirmative vote of two-thirds of the total number of trustees fixed in accordance with the Declaration of Trust or the By-laws, in which case the affirmative vote of the holders of at least a majority of the Fund’s Preferred Shares outstanding at the time would be required. None of the foregoing provisions may be amended except by the vote of at least two-thirds of the Common Shares and preferred shares voting together as a single class. The votes required to approve the conversion of the Fund from a closed-end to an open-end investment company or to approve transactions constituting a plan of reorganization which adversely affects the holders of preferred shares are higher than those required by the 1940 Act. The Board of Trustees believes that the provisions of the Declaration of Trust relating to such higher votes are in the best interest of the Fund and its shareholders.

The By-laws of the Fund provide that a shareholder who obtains beneficial ownership of common shares in a “Control Share Acquisition” shall have the same voting rights as other holders of Common Shares only to the extent authorized by shareholders. Such authorization shall require the affirmative vote of the holders of a majority (more than 50%) of the shares of the Fund entitled to vote in the election of trustees excluding interested shares. Interested shares include shares held by Fund officers and any person who has acquired Common Shares in a Control Share Acquisition (the “Control Share Provisions”). The By-laws define a “Control Share Acquisition,” subject to various conditions and exceptions, generally to mean an acquisition of Common Shares that would give the beneficial owner, upon the acquisition of such shares, the ability to exercise voting power, but for the Control Share Provisions, in the election of trustees in any one of the following ranges: (i) one-tenth or more, but less than one-fifth of all voting power; (ii) one-fifth or more, but less than one-third of all voting power; (iii) one-third or more, but less than a majority of all voting power; or (iv) a majority or more of all voting power. For this purpose, all Common Shares acquired by a person within ninety days before or after the date on which such person acquires shares that result in a Control Share Acquisition, and all Common Shares acquired by such person pursuant to a plan to make a Control Share Acquisition, shall be deemed to have been acquired in the same Control Share Acquisition. Subject to various conditions and procedural requirements, including the delivery of a “Control Share Acquisition Statement” to the Fund setting forth certain required information, a shareholder who obtains or proposes to obtain beneficial ownership of common shares in a Control Share Acquisition generally may request a vote of shareholders to approve the authorization of voting rights of such shareholder with respect to such shares.

The provisions of the Declaration of Trust and By-laws described above could have the effect of depriving the Common Shareholders of opportunities to sell their Common Shares at a premium over the then current market price of the Common Shares by discouraging a third party from seeking to obtain control of the Fund in a tender offer or similar transaction. The overall effect of these provisions is to render more difficult the accomplishment of a merger or the assumption of control by a third party. They provide, however, the advantage of potentially requiring persons seeking control of the Fund to negotiate

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Certain provisions in the Declaration of Trust and By-laws

with its management regarding the price to be paid and facilitating the continuity of the Fund’s investment objective and policies. The Fund’s Board of Trustees has considered the foregoing anti-takeover provisions and concluded that they are in the best interests of the Fund and its Common Shareholders.

Term

The Declaration of Trust provides that the Fund will have a limited period of existence and will terminate as of the Stated Termination Date; provided that the Board of Trustees may, in its sole discretion and without any action by the shareholders of the Fund, extend the Fund’s term for up to two one year periods; furthermore, notwithstanding the foregoing, if the Board of Trustees determines to cause the Fund to conduct an Eligible Tender Offer, and the Eligible Tender Offer is completed, the Board of Trustees may, in its sole discretion and without any action by the shareholders of the Fund, provide that the Fund may continue without limitation of time, subject to the terms and conditions described herein. Unless the Fund’s existence is continued without limitation of time as described herein on or before the Termination Date, the Fund will cease its investment operations, retire or redeem its leverage facilities, liquidate its investment portfolio (to the extent possible) and, on or after the Termination Date, the Fund will distribute all of its liquidated net assets to Common Shareholders of record in one or more distributions.

The Declaration of Trust provides that the Fund, or any class or series thereof, may be terminated at any time by the Board of Trustees by notice to the shareholders without a vote of the shareholders of the Fund.

The Declaration of Trust provides that an Eligible Tender Offer is a tender offer by the Fund to all holders of outstanding common shares as of a date within 18 months preceding the Termination Date. If the tender offer is completed, Common Shareholders who properly tender Common Shares in the Eligible Tender Offer will receive a purchase price equal to the NAV per share on the expiration date of the Eligible Tender Offer. The Declaration of Trust provides that, if the number of properly tendered Common Shares would result in the Fund exceeding the Termination Threshold, then the Board of Trustees may determine to provide that the Fund may continue without limitation of time. The Declaration of Trust provides that if net assets of the Fund would be less than the Termination Threshold following the completion of the Eligible Tender Offer, the tender offer will not be completed, no Common Shares will be purchased and the Fund will terminate as of the Termination Date.

Procedural requirements on derivative actions, exclusive jurisdiction and jury trial waiver

The By-laws of the Fund, dated as of October 5, 2020 and effective with respect to the Fund as of December 3, 2020, contain certain provisions affecting potential shareholder claims against the Fund, including procedural requirements for derivative actions, an exclusive forum provision, and the waiver of shareholder rights to a jury trial. Massachusetts is considered a “universal demand” sate, meaning that under Massachusetts corporate law a shareholder must make a demand on the company before bringing a derivative action (i.e., a lawsuit brought by a shareholder on behalf of the company). The By-laws of the Fund, dated as of October 5, 2020 and effective with respect to the Fund as of December 3, 2020, provide detailed procedures for the bringing of derivative actions by shareholders (the “Demand By-law”) which are modeled on the substantive provisions of the Massachusetts corporate law derivative demand statute. The Demand By-law is intended to permit legitimate inquiries and claims while avoiding the time, expense, distraction, and other harm that can be caused to the Fund or its shareholders as a result of spurious shareholder demands and derivative actions. Among other things, the Demand By-law:

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Certain provisions in the Declaration of Trust and By-laws

The Demand By-law may be more restrictive than procedures for bringing derivative suits applicable to other investment companies.

The By-laws also require that actions by shareholders against the Fund, except for actions under the U.S. federal securities laws, be brought only in a certain federal court in Massachusetts, or if not permitted to be brought in federal court, then in the Business Litigation Session of the Massachusetts Superior Court in Suffolk County (the “Exclusive Jurisdictions”), and that the right to jury trial be waived to the fullest extent permitted by law. Other investment companies may not be subject to similar restrictions. The designation of Exclusive Jurisdictions may make it more expensive for a shareholder to bring a suit than if the shareholder were permitted to select another jurisdiction. Also, the designation of Exclusive Jurisdictions and the waiver of jury trials limit a shareholder’s ability to litigate a claim in the jurisdiction and in a manner that may be more favorable to the shareholder. It is possible that a court may choose not to enforce these provisions of the Fund’s By-laws.

Preemptive rights

The Declaration of Trust provides that Common Shareholders shall have no right to acquire, purchase or subscribe for any shares or investments of the Fund, other than such right, if any, as the Fund’s Board of Trustees in its discretion may determine. As of the date of this prospectus, no preemptive rights have been granted by the Board of Trustees.

Reference should be made to the Declaration of Trust and By-laws on file with the SEC for the full text of these provisions.

Repurchase of Common Shares; conversion to open-end fund

The Fund is a closed-end investment company and as such its shareholders will not have the right to cause the Fund to redeem their shares. Instead, the Common Shares will trade in the open market at a price that will be a function of several factors, including dividend levels (which are in turn affected by expenses), NAV, dividend stability, relative demand for and supply of such shares in the market, general market and economic circumstances and other factors. Because shares of closed-end investment companies frequently may trade at prices lower than NAV the Fund’s Board of Trustees has currently

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Repurchase of Common Shares; conversion to open-end fund

determined that, at least annually, it will consider action that might be taken to reduce or eliminate any material discount from NAV in respect of Common Shares, which may include the repurchase of such shares in the open market or in private transactions, the making of a tender offer for such shares at NAV, or the conversion of the Fund to an open-end investment company. The Fund cannot assure you that its Board of Trustees will decide to take any of these actions, or that share repurchases or tender offers will actually reduce market discount.

If the Fund converted to an open-end investment company, the Common Shares would no longer be listed on the NYSE or elsewhere and it would likely have to significantly reduce any leverage it is then employing, which may require a repositioning of its investment portfolio, which may in turn generate substantial transaction costs, which would be borne by Common Shareholders, and may adversely affect Fund performance and Fund distributions. In contrast to a closed-end investment company, shareholders of an open-end investment company may require the company to redeem their shares at any time (except in certain circumstances as authorized by the 1940 Act or the rules thereunder) at their NAV, less any redemption charge that is in effect at the time of redemption. The Fund currently expects that any such redemptions would be made in cash. The Fund may charge sales or redemption fees upon conversion to an open-end fund. In order to avoid maintaining large cash positions or liquidating favorable investments to meet redemptions, open-end investment companies typically engage in a continuous offering of their shares. Open-end investment companies are thus subject to periodic asset in-flows and out-flows that can complicate portfolio management. The Board of Trustees may at any time propose conversion of the Fund to an open-end investment company depending upon its judgment as to the advisability of such action in light of circumstances then prevailing. See “Repurchase of Common Shares; Conversion to Open-End Fund” in the SAI for a discussion of the voting requirements applicable to the conversion of the Fund to an open-end investment company.

Before deciding whether to take any action if the Common Shares trade below NAV, the Board of Trustees would consider all relevant factors, including the extent and duration of the discount, the liquidity of the Fund’s portfolio, the impact of any action that might be taken on the Fund or its shareholders, and market considerations. Based on these considerations, even if the Fund’s shares should trade at a discount, the Board of Trustees may determine that, in the interest of the Fund and its shareholders, no action should be taken. See “Repurchase of Common Shares; Conversion to Open-End Fund” in the SAI for a further discussion of possible action to reduce or eliminate such discount to NAV.

Tax matters

The following discussion of U.S. federal income tax matters is based on the advice of Stradley Ronon Stevens & Young, LLP, counsel to the Fund.

The discussions below and certain disclosure in the SAI provide general U.S. federal income tax information related to an investment in the Common Shares. Because tax laws are complex and often change, you should consult your tax advisor about the tax consequences of an investment in the Fund. The following tax discussion assumes that you are a U.S. Common Shareholder (as defined under “Tax Matters” in the SAI) and that you hold the Common Shares as a capital asset (generally, property held for investment).

Prospective investors should consult their own tax advisers with regard to the U.S. federal tax consequences of the purchase, ownership, and disposition of Common Shares, as well as the tax consequences arising under the laws of any state, local, foreign, or other taxing jurisdiction.

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The discussion below does not represent a detailed description of the U.S. federal income tax considerations relevant to special classes of taxpayers including, without limitation, financial institutions, insurance companies, taxpayers subject to the alternative minimum tax, a partnership or other entity treated as a pass-through entity for U.S. federal income tax purposes, U.S. Common Shareholders whose “functional currency” is not the U.S. dollar, tax-exempt organizations, a controlled foreign corporation or a passive foreign investment company, dealers in securities or currencies, traders in securities or commodities that elect mark-to-market treatment, or persons that will hold Common Shares as a position in a “straddle,” “hedge” or as part of a “constructive sale” for U.S. federal income tax purposes.

If a partnership (or an entity treated as a partnership for U.S. federal income tax purposes) holds Common Shares, the tax treatment of a partner in the partnership generally will depend upon the status of the partner and the activities of the partnership. Partnerships that hold Common Shares should consult their tax advisors about the U.S. federal income tax considerations to their partners of the purchase, ownership and disposition of Common Shares.

The Fund intends to elect to be treated and to qualify each year as a RIC under Subchapter M of the Code. In order to qualify as a RIC, the Fund must satisfy certain requirements regarding the sources of its income, the diversification of its assets and the distribution of its income. As a RIC, the Fund is not expected to be subject to U.S. federal income tax on the portion of its investment company taxable income and net recognized capital gains that it distributes to Common Shareholders.

Although the Fund primarily invests in securities whose income is subject to U.S. federal income tax, the Fund also will invest in tax-exempt municipal securities as described above. Although the Fund anticipates investing a portion of its assets in municipal securities, the Fund will not satisfy the requirements of the Code to pay exempt-interest dividends to you. Exempt-interest dividends distributed by the Fund generally would be excluded from gross income for U.S. federal income tax purposes. To be eligible to pay exempt interest dividends the Fund would need to satisfy a number of requirements including that at least 50 percent of the value of the Fund’s total assets, at the close of each quarter of its taxable year, must consist of qualifying tax-exempt municipal securities. The Fund does not expect to satisfy this requirement. Thus, substantially all of the Fund’s dividends paid to you will be taxable dividends. Additionally, because of the Fund’s investment objective, it generally does not expect to distribute dividends eligible for qualified dividend income treatment or the dividends received deduction. In addition to ordinary dividends, the Fund also may distribute to its Common Shareholders amounts that are treated as long-term capital gain. Taxable distributions are taxable whether or not such distributions are received in cash or reinvested in the Fund. Capital gain distributions are generally taxable at rates applicable to long-term capital gains regardless of how long a Common Shareholder has held his or her Common Shares. Long-term capital gains for noncorporate shareholders are currently taxable at a maximum rate of 20%.

As a RIC, the Fund will not be subject to U.S. federal income tax in any taxable year on income or gains that it timely distributes to shareholders. As described in “Distributions” above, the Fund may retain for investment a portion of its net investment income and some (or all) of its net capital gain. If the Fund retains any net capital gain or investment company taxable income, it generally will be subject to tax at the regular corporate income tax rate on the amount retained. If the Fund retains any net capital gain, it may report the retained amount as undistributed capital gains as part of its annual reporting to its shareholders who (i) will be required to include in income for U.S. federal income tax purposes, as long-term capital gain, their share of such undistributed amount; (ii) will be entitled to credit their proportionate shares of the tax paid by the Fund on such undistributed amount against their U.S. federal

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income tax liabilities, if any; and (iii) will be entitled to claim refunds to the extent the credit exceeds such liabilities. For U.S. federal income tax purposes, the tax basis of Common Shares owned by a Common Shareholder will be increased by an amount equal to the difference between the amount of undistributed capital gains included in the shareholder’s gross income and the tax deemed paid by the Common Shareholder under clause (ii) of the preceding sentence.

Dividends and other taxable distributions declared by the Fund in October, November or December to shareholders of record on a specified date in such month and paid during the following January will be treated as having been received by shareholders in the year the distributions were declared.

Each Common Shareholder will receive an annual statement summarizing the shareholder’s dividend and capital gains distributions (including net capital gains credited to the Common Shareholder but retained by the Fund) after the close of the Fund’s taxable year.

The sale or exchange of Common Shares, including in connection with the Fund’s final distribution to shareholders on or about the Termination Date, normally will result in capital gain or loss to Common Shareholders in an amount equal to the difference between the U.S. Common Shareholder’s adjusted tax basis in the shares and the amount realized from the sale or other disposition. Generally a shareholder’s gain or loss will be long-term capital gain or loss if the Common Shares have been held for more than one year. Present law taxes both long-term and short-term capital gains of corporations at the same rates applicable to ordinary income. For non-corporate taxpayers, however, long-term capital gains are currently taxed at a maximum rate of 20%, while short-term capital gains and other ordinary income are currently taxed at ordinary income rates. If a Common Shareholder sells or otherwise disposes of Common Shares before holding them for more than six months, any loss on the sale or disposition will be treated as a long-term capital loss to the extent of any net capital gains distributed to the Common Shareholder (including any net capital gains credited to them but retained by the Fund). Any loss realized on a sale or exchange of Common Shares will be disallowed to the extent those Common Shares are replaced by other substantially identical shares within a period of 61 days beginning 30 days before and ending 30 days after the date of disposition of the original Common Shares. In that event, the basis of the replacement shares will be adjusted to reflect the disallowed loss.

The Fund invests in the Subsidiary in order to gain exposure to Regulation S securities that are not freely tradable in the U.S. The Fund intends for the Subsidiary to be treated as a disregarded entity for U.S. federal income tax purposes. As such, the Fund intends for the Subsidiary to be disregarded as an entity separate from its sole shareholder, the Fund, and assuming that the Subsidiary is a disregarded entity, the income, gains, losses, deductions and credits of the Subsidiary will be reported by the Fund as such items are realized.

The Fund may be subject to foreign taxes, which could reduce the amount of its distributions. If more than 50% of the Fund’s assets are invested in foreign securities at the end of a year, the Fund will be eligible to make an election permitting shareholders to claim a credit or deduction for their pro rata share of foreign taxes paid by the Fund. If it makes this election, the Fund may report more taxable income to Common Shareholders than it actually distributes. There can be no assurance that the Fund will be eligible to pass through foreign tax credits in any given year.

The Fund may be required to “backup” withhold U.S. federal income tax at the current rate of 24% of all taxable distributions payable to Common Shareholders who fail to provide the Fund with their correct taxpayer identification number or to make required certifications, or if the Common Shareholders have been notified by the Internal Revenue Service (“IRS”) that they are subject to backup

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withholding. Backup withholding is not an additional tax; rather, it is a way in which the IRS ensures it will collect taxes otherwise due. Any amounts withheld may be credited against a shareholder’s U.S. federal income tax liability provided the required information is timely furnished to the IRS.

The Fund may invest in other securities the U.S. federal income tax treatment of which is uncertain or subject to re-characterization by the IRS. To the extent the tax treatment of such securities or their income differs from the tax treatment expected by the Fund, it could affect the timing or character of income recognized by the Fund, requiring the Fund to purchase or sell securities, or otherwise change its portfolio, in order to comply with the tax rules applicable to RICs under the Code. Common Shareholders may be subject to state, local and foreign taxes on their Fund distributions. Shareholders are advised to consult their own tax advisers with respect to the particular consequences to them of an investment in the Fund.

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Underwriting

The underwriters named below (the “Underwriters”), acting through                     ,                      and                      as their representatives (the “Representatives”), have severally agreed, subject to the terms and conditions of an underwriting agreement with the Fund, Nuveen Fund Advisors and the Nuveen Asset Management (the “Underwriting Agreement”), to purchase from the Fund the number of Common Shares set forth opposite their respective names. The Underwriters are committed to purchase and pay for all such Common Shares (other than those covered by the over-allotment option described below) if any are purchased.

If an Underwriter fails to purchase the Common Shares it has agreed to purchase, the Underwriting Agreement provides that one or more substitute underwriters may be found, the purchase commitments of the remaining Underwriters may be increased or the Underwriting Agreement may be terminated.

The Fund has granted to the Underwriters an option, exercisable for 45 days from the date of this prospectus, to purchase up to an additional              Common Shares to cover over-allotments, if any, at the initial offering price. The Underwriters may exercise such option solely for the purpose of covering over-allotments incurred in the sale of the Common Shares offered hereby. To the extent that the Underwriters exercise this option, each of the Underwriters will have a firm commitment, subject to certain conditions, to purchase an additional number of Common Shares proportionate to such Underwriter’s initial commitment.

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Underwriting

The Underwriting Agreement provides that the obligations of the Underwriters to purchase the Common Shares included in this offering are subject to approval of certain legal matters by counsel and certain other conditions.

Investors purchasing Common Shares in this offering will not be charged a sales load. Nuveen Fund Advisors (and not the Fund) has agreed to pay, from its own assets, compensation of up to $         per Common Share to the Underwriters in connection with the offering, which aggregate amount will not exceed         % of the total public offering price of the Common Shares sold in this offering. See “—Additional Compensation to be Paid by Nuveen Fund Advisors,” below. The Representatives have advised the Fund that the Underwriters may pay up to $         per Common Share from such compensation to selected dealers who sell the Common Shares and that such dealers may reallow a concession of up to $         per Share to certain other dealers who sell Common Shares.

Investors must pay for any Common Shares purchased on or before                 , 2021.

Nuveen Fund Advisors (and not the Fund) will pay all organizational expenses of the Fund and all offering costs associated with this offering. The Fund is not obligated to repay any such organizational expenses or offering costs paid by Nuveen Fund Advisors.

Nuveen Fund Advisors has agreed to pay expenses related to the reasonable fees and disbursements of counsel to the Underwriters in connection with the review by the Financial Industry Regulatory Authority, Inc. (“FINRA”) of the terms of the sale of the Common Shares, in an amount not to exceed $                , and the filing fees incident to the filing of this offering with FINRA.

Prior to this offering, there has been no public or private market for the Common Shares or any other securities of the Fund. Consequently, the offering price for the Common Shares was determined by negotiation among the Fund and the Representatives. There can be no assurance, however, that the price at which the Common Shares sell after this offering will not be lower than the price at which they are sold by the Underwriters or that an active trading market in the Common Shares will develop and continue after this offering. The Fund’s Common Shares are expected to be listed on the NYSE under the trading or “ticker” symbol “NPCT,” subject to notice of issuance.

In connection with the requirements for listing the Common Shares on the NYSE, the Underwriters have undertaken to sell lots of 100 or more Common Shares to a minimum of 400 beneficial owners in the United States. The minimum investment requirement is 100 Common Shares.

The Fund, Nuveen Fund Advisors and Nuveen Asset Management have each agreed to indemnify the several Underwriters for or to contribute to the losses arising out of certain liabilities, including liabilities under the 1933 Act, or to contribute to payments the Underwriters may be required to make in respect of those liabilities, except in the cases of willful misfeasance, bad faith, gross negligence or reckless disregard of applicable obligations and duties.

The Fund has agreed not to offer, sell or register with the SEC any additional equity securities of the Fund, other than issuances (1) of Common Shares hereby, (2) of preferred shares or (3) pursuant to the Fund’s dividend reinvestment plan, for a period of 180 days after the date of the Underwriting Agreement without the prior written consent of the Representatives.

Certain employees of Nuveen Fund Advisors, Nuveen Asset Management and their affiliates, who have indicated an interest in purchasing Common Shares in this offering have agreed that for a period of 180 days from the date of this prospectus, such party will not, without the prior written consent of the

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Underwriting

Representatives, on behalf of the Underwriters, offer, pledge, sell, contract to sell or otherwise dispose of or agree to sell or otherwise dispose of, directly or indirectly, or hedge any Common Shares or any securities convertible into or exchangeable for Common Shares, provided, however, that in such party may sell or otherwise dispose of Common Shares pursuant to certain limited exceptions. The Representatives in their sole discretion may release any of the securities subject to these lock-up agreements at any time.

In connection with this offering, the Underwriters may purchase and sell Common Shares in the open market. These transactions may include over-allotment and stabilizing transactions and purchases to cover syndicate short positions created in connection with this offering. Stabilizing transactions consist of certain bids or purchases for the purpose of preventing or retarding a decline in the market price of the Common Shares and syndicate short positions involve the sale by the Underwriters of a greater number of Common Shares than they are required to purchase from the Fund in this offering. The Underwriters also may impose a penalty bid, whereby selling concessions allowed to syndicate members or other broker-dealers in respect of the Common Shares sold in this offering for their account may be reclaimed by the syndicate if such Common Shares are repurchased by the syndicate in stabilizing or covering transactions. These activities may stabilize, maintain or otherwise affect the market price of the Common Shares, which may be higher than the price that might otherwise prevail in the open market; and these activities, if commenced, may be discontinued at any time without notice. These transactions may be effected on the NYSE or otherwise.

In connection with the offering, certain of the Underwriters or selected dealers may distribute prospectuses electronically.

The Fund anticipates that from time to time certain of the Underwriters may act as brokers or dealers in connection with the execution of the Fund’s portfolio transactions after they have ceased to be Underwriters and, subject to certain restrictions, may act as brokers while they are Underwriters. Certain Underwriters have performed investment banking and advisory services for Nuveen Fund Advisors and its affiliates from time to time, for which they have received customary fees and expenses. Certain Underwriters may, from time to time, engage in transactions with or perform services for Nuveen Fund Advisors and its affiliates in the ordinary course of business.

ADDITIONAL COMPENSATION TO BE PAID BY NUVEEN FUND ADVISORS

Nuveen Fund Advisors (and not the Fund) has agreed to pay from its own assets, underwriting compensation of up to $         per Common Share to the Underwriters in connection with the offering, which aggregate amount will not exceed         % of the total public offering price of the Common Shares sold in this offering. Such per share underwriting compensation payable by Nuveen Fund Advisors may be reduced with respect to the purchase of Common Shares by certain types of investors, including employees of Nuveen Fund Advisors and its affiliates or strategic partners; individuals purchasing Common Shares through certain types of fee-based advisory accounts; and individuals purchasing Common Shares through accounts with certain registered investment advisors.

Nuveen Fund Advisors (and not the Fund) has also agreed to pay, from its own assets, to each of                 ,                 ,                 ,                  and                  a fee for advice relating to the structure, design and organization of the Fund as well as for services related to the sale and distribution of the Fund’s Common Shares in the amount of $                , $                , $                , $                 and $                , respectively. If the over-allotment option is not exercised, the structuring fee paid to each of                 ,                 ,                 ,                  and                  will not exceed         %,         %,         %,         %, and         %, respectively, of the total public offering price of the Common Shares sold in this offering.

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Underwriting

Additionally, Nuveen Fund Advisors (and not the Fund) may pay, from its own assets, certain other qualifying underwriters a structuring fee, sales incentive fee or other additional compensation in connection with the offering.

The sum of all compensation to the Underwriters in connection with this public offering of Common Shares, including the underwriting compensation payable by Nuveen Fund Advisor, the structuring fees, all forms of additional payments to the Underwriters and certain other expenses will not exceed         % of the total public offering price of the Common Shares sold in this offering.

Custodian and transfer agent

The custodian of the Fund’s assets and the Subsidiary’s assets is State Street Bank and Trust Company (the “Custodian”), One Lincoln Street, Boston, Massachusetts 02111. The Custodian performs custodial, fund accounting and portfolio accounting services. The Fund’s transfer, shareholders services and dividend paying agent is Computershare Inc. and Computershare Trust Company, N.A. Computershare is located at 150 Royall Street, Canton, Massachusetts 02021.

Legal opinions and experts

Certain legal matters in connection with the Common Shares will be passed upon for the Fund by Stradley Ronon Stevens & Young, LLP, Chicago, Illinois. Skadden, Arps, Slate, Meagher & Flom LLP, Chicago, Illinois, advised the Underwriters in connection with the offering of the Common Shares. Stradley Ronon Stevens & Young, LLP may rely as to certain matters of Massachusetts law on the opinion of Morgan, Lewis & Bockius LLP, Boston, Massachusetts. PricewaterhouseCoopers LLP, an independent registered public accounting firm, provides auditing services to the Fund.

Note: The Fund or securities referred to herein are not sponsored, endorsed, issued, sold or promoted by MSCI, and MSCI bears no liability with respect to such Fund or securities or any index on which such Fund or securities are based. The Prospectus contains a more detailed description of the limited relationship MSCI has with the Fund and any related funds.

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LPR-NPCT-0421D

The information in this Statement of Additional Information is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This Statement of Additional Information is not an offer to sell these securities and it is not soliciting an offer to buy these securities in any jurisdiction where the offer and sale is not permitted.

SUBJECT TO COMPLETION, DATED MARCH     , 2021

NUVEEN CORE PLUS IMPACT FUND

STATEMENT OF ADDITIONAL INFORMATION

Nuveen Core Plus Impact Fund (the “Fund”) is a newly organized, diversified, closed-end management investment company.

This Statement of Additional Information (“SAI”) relating to common shares of the Fund (“Common Shares”) does not constitute a prospectus, but should be read in conjunction with the Fund’s prospectus relating thereto dated                                         , 2021 (the “Prospectus”). In this SAI, holders of Common Shares are referred to as “Common Shareholders.” This SAI does not include all information that a prospective investor should consider before purchasing Common Shares. Investors should obtain and read the Prospectus prior to purchasing such shares. A copy of the Prospectus, annual and semi-annual reports (when available) and additional information about the Fund may be obtained without charge by calling (800) 257-8787, by writing to the Fund at 333 West Wacker Drive, Chicago, Illinois, 60606 or from the Fund’s website (http://www.nuveen.com). The information contained in, or that can be accessed through, the Fund’s website is not part of the Prospectus or this SAI. You may also obtain a copy of the Fund’s Prospectus on the Securities and Exchange Commission’s website (http://www.sec.gov). Capitalized terms used but not defined in this SAI have the meanings ascribed to them in the Prospectus.

This Statement of Additional Information is dated                                         , 2021

INVESTMENT OBJECTIVE AND POLICIES

The Fund’s investment objective is to seek total return through high current income and capital appreciation, while giving special consideration to certain impact and environmental, social and governance (“ESG”) criteria. There can be no assurance that the Fund will achieve its investment objective or that the Fund’s investment strategies will be successful. The Fund’s investment objective may be changed by the Board of Trustees without shareholder approval.

Fund Strategies

The Fund’s portfolio will be actively managed and will seek to deliver a direct and measurable positive social and environmental impact as well as ESG leadership. In selecting fixed-income investments, Nuveen Asset Management performs its own credit analysis, paying particular attention to economic trends and other market events. Subject to Nuveen’s proprietary public market impact framework criteria (the “Impact Criteria”) and Nuveen’s ESG criteria described below, individual securities will be selected to construct a portfolio consistent with the Fund’s investment objective of total return through high current income and capital appreciation.

In addition, the Fund’s investment in fixed-income investments of any type is subject to the Impact Criteria or Nuveen’s ESG criteria.

Impact Criteria

The fixed-income investments invested according to the Impact Criteria provide direct exposure to issuers and/or individual projects with social or environmental benefits. The portion of the Fund invested in accordance with the Impact Criteria is not required to meet ESG criteria provided by a third party.

The Impact Criteria are designed to identify investments that will generate positive, measurable social and environmental impact alongside a financial return. These investments are intended to provide access to the following four social and environmental themes:

(1) Affordable Housing: Investments that support the financing of low and moderate income housing loans, transit oriented development (i.e., a mix of commercial, residential, office and entertainment centered around or located near a transit station), walkable communities, or mixed-use development projects.

(2) Community & Economic Development: Investments that support financial services, hospital/ medical services, educational services, community centers, reconstruction activities, urban revitalization, humanitarian, disaster, and international aid services, all of which are inclusive of underserved and/or economically disadvantaged communities.

(3) Renewable Energy & Climate Change: Investments that finance new or expand existing renewable energy projects (including hydroelectric, solar and wind), smart grid and other projects designed to make power generation and transmission systems more efficient, and other energy efficiency projects which seek to reduce greenhouse gas emissions.

(4) Natural Resources: Investments that support land conservation, sustainable forestry and agriculture, remediation and redevelopment of polluted or contaminated sites, sustainable waste management projects, water infrastructure including improvement of clean drinking water supplies and/or sewer systems, and sustainable building projects.

2

ESG Criteria and Evaluation Process

Nuveen’s ESG criteria are generally implemented based on data provided by independent research vendor(s). The Fund relies upon ESG ratings, controversy scores and controversial business indicators from such vendor(s), and applies internal, proprietary thresholds to those data points to create the pool of eligible portfolio investments. The Fund has the right to change such vendor(s) and to change the number of vendors providing ESG data at any time. In addition, the Fund considers Nuveen’s internal, proprietary ESG ratings as an additional factor in security selection. In those limited cases where independent ESG criteria are not available for certain types of investments or for certain issuers, these investments may nonetheless be eligible for investment by the Fund should they meet certain internal ESG criteria. Substantially all issuers, other than those in which the Fund invests in accordance with the Impact Criteria described above, must meet or exceed minimum ESG performance standards to be eligible for investment by the Fund.

The corporate issuer evaluation process favors companies with leadership in ESG performance relative to their peers. Typically, environmental assessment categories include climate change, natural resource use, waste management and environmental opportunities. Social evaluation categories include human capital, product safety and social opportunities. Governance assessment categories include corporate governance, business ethics and government and public policy. How well companies adhere to international norms and principles and involvement in major ESG controversies (examples of which may relate to the environment, customers, human rights and community, labor rights and supply chain, and governance) are other considerations.

The ESG evaluation process with respect to corporate issuers is conducted on an industry-specific basis and involves the identification of key performance indicators, which are given more or less relative weight compared to the broader range of potential assessment categories. When ESG concerns exist, the evaluation process gives careful consideration to how companies address the risks and opportunities they face in the context of their sector or industry and relative to their peers. The Fund will not generally invest in companies significantly involved in certain business activities including, but not limited to, the production of alcohol, tobacco, military weapons, firearms, nuclear power, thermal coal, and gambling products and services.

The ESG evaluation process with respect to government issuers favors issuers with leadership in ESG performance relative to all peers. Typically, environmental assessment categories include the issuer’s ability to protect, harness, and supplement its natural resources, and to manage environmental vulnerabilities and externalities. Social assessment categories include the issuer’s ability to develop a healthy, productive, and stable workforce and knowledge capital, and to create a supportive economic environment. Governance assessment categories include the issuer’s institutional capacity to support long-term stability and well-functioning financial, judicial, and political systems, and capacity to address environmental and social risks. The government ESG evaluation process is conducted on a global basis and reflects how an issuer’s exposure to and management of ESG risk factors may affect the long-term sustainability of its economy.

Other Considerations and Investments

While the Fund will invest in issuers that meet the Impact Criteria or Nuveen’s ESG criteria, it is not required to invest in every issuer that meets these criteria. In addition, if an issuer meets certain ESG criteria but does not satisfy all ESG assessment categories it may not automatically be eliminated as an eligible investment. The Impact Criteria, the ESG criteria and the resulting universe of eligible investments may be changed without the approval of the Fund’s shareholders.

Nuveen Asset Management seeks to ensure that the Fund’s investments are consistent with its Impact Criteria and/or ESG criteria, but it cannot guarantee that this will always be the case for every Fund investment. Consistent with its responsibilities, Nuveen Asset Management has the right to change the ESG vendor(s) at any time and to add to the number of vendors providing the universe of eligible companies. Investing on the basis of Impact Criteria or ESG criteria is qualitative and subjective by nature, and there can be no assurance that the Impact Criteria utilized by Nuveen, the ESG criteria utilized by the Fund’ ESG vendor(s), or any judgment exercised by Nuveen Asset Management will reflect the beliefs or values of any particular investor.

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The Fund’s investments will include investment grade and below investment grade investments. Below investment grade investments (such investments are commonly referred to as “high yield” or “junk”) generally provide high income in an effort to compensate investors for their higher risk of default, which is the failure to make required interest or principal payments.

The Fund may also invest in certain asset-backed securities, mortgage-backed securities and other securities that represent interests in assets such as pools of mortgage loans, automobile loans or credit card receivables. These securities are typically issued by legal entities established specifically to hold assets and to issue debt obligations backed by those assets. Asset-backed or mortgage-backed securities are normally created or “sponsored” by banks or other institutions or by certain government-sponsored enterprises such as the Federal National Mortgage Association (“Fannie Mae” or “FNMA”) or Federal Home Loan Mortgage Corporation (“Freddie Mac” or “FHLMC”). The Fund does not take into consideration whether the sponsor of an asset-backed security in which it invests meets the Impact Criteria or the ESG criteria. That is because asset-backed securities represent interests in pools of loans, and not of the ongoing business enterprise of the sponsor. It is therefore possible that the Fund could invest in an asset-backed or mortgage-backed security sponsored by a bank or other financial institution in which the Fund could not invest directly. However, the investments underlying an asset-backed or mortgage-backed security will generally meet or exceed the Impact Criteria or Nuveen’s ESG criteria.

The Impact Criteria or Nuveen’s ESG criteria will apply to the Fund’s investment exposure through derivatives and other instruments that have economic characteristics similar to the Fund’s fixed-income investments. However, neither the Impact Criteria nor Nuveen’s ESG criteria will apply to the Fund’s investments in derivatives used for hedging purposes.

The Fund is not restricted from investing in any investments issued or guaranteed by the U.S. government or its agencies or instrumentalities. The Fund considers investments in these investments to be consistent with its investment and social objectives.

There can be no assurance that the Fund’s strategies will be successful.

Portfolio Contents

The Fund generally invests in a portfolio of fixed-income investments of any type, including asset-backed securities, corporate bonds, preferred securities, residential and commercial mortgage-backed securities, taxable and tax-exempt municipal bonds, senior loans and loan participations and assignments, sovereign debt instruments, debt securities issued by supranational agencies, and U.S. government securities (securities issued or guaranteed by the U.S. government or its agencies or instrumentalities).

The Fund’s portfolio may contain restricted and illiquid investments (i.e., investments that are not readily marketable), including, but not limited to, restricted investments (investments the disposition of which is restricted under the federal securities laws), investments that may be resold only pursuant to Rule 144A under the Securities Act of 1933, as amended (“1933 Act”) that are deemed to be illiquid, and certain repurchase agreements. Restricted investments may be sold only in privately negotiated transactions or in a public offering with respect to which a registration statement is in effect under the 1933 Act.

The Fund may also invest directly in Regulation S securities that are freely tradable in the U.S. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the Securities and Exchange Commission (“SEC”) pursuant to Regulation S of the 1933 Act. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale.

The Fund may invest in securities of other open-end or closed-end investment companies, including exchange-traded funds (“ETFs”), that invest primarily in the types of investments in which the Fund may invest directly.

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The Fund may invest without limitation in credit default swaps, and may enter into credit default swaps as either a buyer or a seller. The credit default swaps in which the Fund may invest include credit default swap indices (“CDX”) and those in which the underlying reference instrument is the debt obligation of a single reference issuer (“single-name CDS”). A CDX is a portfolio of credit default swaps with similar characteristics, such as credit default swaps on high-yield bonds. Certain CDX instruments are subject to mandatory central clearing and exchange trading, which may reduce counterparty credit risk and increase liquidity compared to other credit default swaps or CDX transactions. Unlike other types of credit default swaps, single-name CDS do not have the benefit of diversification across many issuers.

In addition to credit default swaps, the Fund also may invest in certain derivative instruments in pursuit of its investment objective. Such instruments include financial futures contracts and options thereon, forward contracts, swaps (with varying terms, including interest rate swaps), options on swaps and other fixed-income derivative instruments. Nuveen Asset Management may use derivative instruments to attempt to hedge some of the risk of the Fund’s investments, to limit exposure to losses due to changes to foreign currency exchange rates or as a substitute for a position in the underlying asset. See “Portfolio Composition and Other Information—Derivatives” in the Prospectus.

The Fund may also invest in other types of investments and debt instruments described in this SAI. See “Portfolio Composition and Other Information” below for additional information on the types of investments in which the Fund may invest.

Investment Policies

Under normal circumstances:

The foregoing policies apply only at the time of any new investment. The Fund’s policy to invest at least 80% of its net assets plus the amount of any borrowings for investment purposes in fixed-income investments of any type, which are subject to the Impact Criteria or Nuveen’s ESG criteria, may not be changed without 60 days’ prior written notice to shareholders.

“Managed Assets” means the total assets of the Fund, minus the sum of its accrued liabilities (other than Fund liabilities incurred for the express purpose of creating leverage). Total assets for this purpose shall include assets attributable to the Fund’s use of leverage (whether or not those assets are reflected in the Fund’s financial statements for purposes of generally accepted accounting principles), and derivatives will be valued at their market value.

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Nuveen Asset Management may determine that it is in the best interest of shareholders to pursue a workout arrangement (i.e., a privately negotiated, mutual agreement between the Fund and the issuer or another party) with respect to investments that are not in default or involved in bankruptcy or insolvency proceedings, which may involve making loans to the issuer or another party, or purchasing an equity or other interest from the issuer or another party, or other related or similar steps involving the investment of additional monies.

For purposes of the limitations on emerging market debt securities, the Fund will classify an issuer based on the issuer’s country of origin, generally as determined by an unaffiliated, recognized financial data provider. An issuer’s country of origin is based on a number of criteria, such as the issuer’s country of domicile or country in which the issuer conducts its primary operations, the primary exchange on which its investments trade, the location from which the majority of the issuer’s revenue comes, and the issuer’s reporting currency. The Fund will classify an issuer of an investment as being an emerging market issuer based on the determination of an unaffiliated, recognized financial data provider. The term “emerging market” describes any country or market that is generally considered to be emerging or developing by major organizations in the international financial community, such as the International Finance Corporation, or by financial industry analysts like MSCI, Inc., which compiles the MSCI Emerging Markets Index, and J.P. Morgan Chase & Co., which compiles several fixed-income emerging markets benchmarks; or other countries or markets with similar emerging characteristics. Emerging markets can include every nation in the world except the United States, Canada, Japan, Australia, New Zealand and most nations located in Western Europe. Notwithstanding the foregoing, the fixed-income portfolio management team generally views Israel as an emerging market.

The portion of the Fund’s assets invested in below investment grade investments (such investments are commonly referred to as “high yield” or “junk”) may vary over time. Below investment grade investments are regarded as having predominately speculative characteristics with respect to the issuer’s capacity to pay interest or dividends, and repay principal, which implies higher price volatility and default risk than investment grade instruments of comparable terms and duration. These investments generally provide higher income than investment grade securities in an effort to compensate investors for their higher risk of default, which is the issuer’s failure to make required interest, dividend or principal payments on the investments. For purposes of the investment limitations in this prospectus, an investment’s rating is determined using the middle rating of Moody’s Investor Services, Inc. (“Moody’s”), Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC business (“Standard & Poor’s” or “S&P”) and Fitch Ratings, a part of the Fitch Group (“Fitch”) if all three nationally recognized statistical rating organizations (“NRSROs”) rate the investment. If ratings are provided by only two of those NRSROs, the lower rating is used to determine the rating. If only one of those NRSROs provides a rating, that rating is used. If an investment is not rated by any NRSRO, the rating determined by Nuveen Asset Management is used. Investment rating limitations are considered to apply only at the time of investment and will not be considered violated unless an excess or deficiency occurs or exists immediately after and as a result of an acquisition of investments.

During temporary defensive periods, the period in which the net proceeds of this offering of Common Shares are first being invested (the “invest-up period”), the “wind-up” period (the approximately six month period during which the Fund is transitioning its portfolio as the Fund’s Termination Date approaches) during which the Fund is transitioning its portfolio as the Termination Date approaches or the period in which the Fund’s assets are being liquidated in anticipation of the Fund’s termination, the Fund may deviate from its investment policies and objective. During such periods, the Fund may invest up to 100% of its Managed Assets in short-term investments, including high quality, short-term securities or may invest in short-, intermediate-, or long-term U.S. Treasury securities. During the invest-up period, the Fund may also purchase securities issued by ETFs that invest primarily in fixed-income investments of the types in which the Fund may invest directly. Any such investments in ETFs will be in compliance with the limitations imposed by the 1940 Act, the rules promulgated thereunder, or pursuant to any exemptive relief obtained thereunder. There can be no assurance that such techniques will be successful. Accordingly, during such periods, the Fund may not achieve its investment objective.

The Fund may seek to provide exposure to Regulation S securities that are not freely tradable in the U.S. by investing in Core Plus Impact Fund, Ltd. (the “Subsidiary”), a wholly owned subsidiary of the Fund, which will

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invest primarily in Regulation S securities. The Subsidiary is advised by the Nuveen Asset Management, which complies with the provisions of Section 15 of the 1940 Act relating to investment advisory contracts as an investment adviser to the Fund under Section 2(a)(20) of the 1940 Act. The Subsidiary has the same investment objective as the Fund. The Subsidiary may also hold cash and invest in other instruments, including fixed income securities, that are not Regulation S securities, either as investments or to serve as margin or collateral for the Subsidiary’s Regulation S positions. The Fund and the Subsidiary each complies with the provisions of the 1940 Act regarding capital structure. In addition, the Subsidiary complies with the provisions of Section 17 of the 1940 Act relating to affiliated transactions and custody of portfolio investments. The Fund’s custodian also serves as the custodian to the Subsidiary. See “Risks—Fund Level Risks—Subsidiary Risk” and “—Portfolio Level Risks—Regulation S Securities Risk” in the Prospectus.

The Subsidiary will be managed pursuant to compliance policies and procedures that are the same, in all material respects, as the policies and procedures adopted by the Fund. As a result, Nuveen Asset Management, in managing the Subsidiary’s portfolio, will be subject to the same investment policies and restrictions that apply to the management of the Fund, and, in particular, to the requirements relating to portfolio leverage, liquidity, brokerage, and the timing and method of the valuation of the Subsidiary’s portfolio investments and shares of the Subsidiary. These policies and restrictions are described in detail throughout this Prospectus. The Fund and Subsidiary will test for compliance with certain investment restrictions on a consolidated basis, except that with respect to its investments in certain securities that may involve leverage, the Subsidiary will comply with asset segregation requirements to the same extent as the Fund.

The Subsidiary is a Cayman Islands exempted company that is wholly owned and controlled by the Fund and is overseen by its own board of directors. The Fund is the sole shareholder of the Subsidiary and it is not currently expected that shares of the Subsidiary will be sold or offered to other investors. It is expected that the Subsidiary will invest primarily in Regulation S securities. As a result, the Fund, through its investment in the Subsidiary, is indirectly exposed to the risks associated with Regulation S securities. See “Risks—Fund Level Risks—Subsidiary Risk” and “—Portfolio Level Risks— Regulation S Securities Risk” in the Prospectus. There can be no assurance that the investment objective of the International Bond Fund or the Subsidiary will be achieved.

The Subsidiary is not registered under the 1940 Act and, therefore, is not subject to the investor protection provisions of the 1940 Act (unless otherwise noted in the Prospectus or this SAI). As an investor in the Subsidiary, the Fund does not have all of the protections offered to investors by the 1940 Act. However, the Subsidiary is wholly owned and controlled by the Fund and managed by Nuveen Asset Management. Therefore, the Fund’s ownership and control of the Subsidiary make it unlikely that the Subsidiary would take actions contrary to the interests of the Fund or its shareholders. Changes in the laws of the United States and/or the Cayman Islands could result in the inability of the International Bond Fund to invest in the Subsidiary as described in the Prospectus and in this SAI and could adversely affect the Fund. For example, the Cayman Islands currently does not impose certain taxes on exempted companies like the Subsidiary, including income and capital gains tax, among others. If Cayman Islands laws were changed to require such entities to pay Cayman Islands taxes, the investment returns of the Fund would likely decrease.

Nuveen Asset Management will provide investment management and other services to the Subsidiary. Nuveen Asset Management will not receive separate compensation from the Subsidiary for providing it with investment management or administrative services. However, the Fund will pay Nuveen Asset Management based on the Fund’s assets, including the assets invested in the Subsidiary. The Subsidiary will also enter into separate contracts for the provision of custody and audit services with the same or with affiliates of the same service providers that provide those services to the Fund.

The financial statements of the Subsidiary will be consolidated with the Fund’s financial statements in the Fund’s annual and semi-annual reports. The Fund’s annual and semi-annual reports, when produced, will be distributed to Common Shareholders, and copies of the reports will be available on the Fund’s website (http://www.nuveen.com) free of.

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Other Policies

The Fund may enter into certain derivative transactions as a hedging technique to protect against potential adverse changes in the market value of portfolio instruments. The Fund also may use derivatives to attempt to protect the NAV of the Fund, to facilitate the sale of certain portfolio investments, to manage the Fund’s effective interest rate exposure, and as a temporary substitute for purchasing or selling particular investments, From time to time, the Fund also may enter into derivative transactions to create investment exposure to the extent such transactions may facilitate implementation of its strategy more efficiently than through outright purchases or sales of portfolio investments.

Certain investment policies specifically identified in this SAI as such are considered fundamental and may not be changed without shareholder approval. See “Investment Restrictions” in this SAI. All of the Fund’s other investment policies are not considered to be fundamental by the Fund and can be changed by the Board without a vote of the shareholders. The Fund cannot change its fundamental policies without the approval of the holders of a “majority of the outstanding” Common Shares. When used with respect to particular shares of the Fund, a “majority of the outstanding” shares means (i) 67% or more of the shares present at a meeting, if the holders of more than 50% of the shares are present or represented by proxy or (ii) more than 50% of the shares, whichever is less.

The Fund will not invest, either directly or indirectly through derivatives, in contingent capital securities or contingent convertible securities (sometimes referred to as “CoCos”).

LEVERAGE

The Fund anticipates using leverage to pursue its investment objective. The Fund may use leverage to the extent permitted under the 1940 Act. The Fund may source leverage initially and throughout the life of the Fund through a number of methods including through borrowings, issuing preferred shares of beneficial interest (“Preferred Shares”), the issuance of debt securities, entering into reverse repurchase agreements (effectively a borrowing), and investing in residual interest certificates of tender option bond trusts, also called inverse floating rate securities, that have the economic effect of leverage because the Fund’s investment exposure to the underlying bonds held by the trust have been effectively financed by the trust’s issuance of floating rate certificates. In addition, the Fund may use derivatives that may have the economic effect of leverage. The sources of leverage will vary depending on market conditions. See “Leverage,” “ Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk,” and “Portfolio Composition and Other Information—Derivatives.” The Fund anticipates using such leverage in an aggregate amount equal to approximately 35% of the Fund’s Managed Assets, if current market conditions persist. The Fund may employ leverage through the issuance of Preferred Shares within 12 months after the completion of this offering, but may do so only if the Board of Trustees determines it to be in the best interests of Common Shareholders.

Reverse repurchase agreements involve the sale of securities held by the Fund with an agreement to repurchase the securities at an agreed-upon price, date and interest payment. Selling a portfolio instrument and agreeing to buy it back under a reverse repurchase agreement is economically equivalent to borrowing. See “Risks—Portfolio Level Risks—Reverse Repurchase Agreement Risk” in the Prospectus.

The Fund may use derivatives, such as interest rate swaps with varying terms, in order to hedge duration risk or manage the interest rate expense associated with all or a portion of its leverage. Interest rate swaps are bi-lateral agreements whereby parties agree to exchange future payments, typically based upon the differential of a fixed rate and a variable rate, on a specified notional amount. Interest rate swaps can enable the Fund to effectively convert its variable leverage expense to fixed, or vice-versa. For example, if the Fund issues leverage having a short-term floating rate of interest, the Fund could use interest rate swaps to hedge against a rise in the short-term benchmark interest rates associated with its outstanding leverage. In doing so, the Fund would seek to achieve lower leverage costs, and thereby enhance Common Share distributions, over an extended period, which

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would be the result if short-term market interest rates on average exceed the fixed interest rate over the term of the swap. To the extent the fixed swap rate is greater than short-term market interest rates on average over the period, overall costs associated with leverage will be greater (and thereby reduce distributions to Common Shareholders) than if the Fund had not entered into the interest rate swap(s). See “Portfolio Composition and Other Information—Derivatives” in the Prospectus.

So long as the net income received from the Fund’s investments purchased with leverage proceeds exceeds the current expense of any leverage, the investment of the proceeds of leverage will generate more net income than if the Fund had not leveraged itself. Under these circumstances, the excess net income will be available to pay higher distributions to Common Shareholders. However, if the net income received from the Fund’s portfolio investments purchased with the proceeds of leverage is less than the current expense of any leverage, the Fund may be required to utilize other Fund assets to make interest and/or dividend payments on its leveraging instruments, which may result in a decline in Common Share NAV and reduced net investment income available for distribution to Common Shareholders.

In pursuit of its investment objective, the Fund has the ability to reduce or increase the amount and type of leverage based upon changes in market conditions, composition of the Fund’s holdings and remaining time until the Fund’s Termination Date. The Fund’s leverage ratio will vary from time to time based upon such changes in the amount of leverage used and variations in the value of the Fund’s holdings.

The Fund pays a management fee to Nuveen Fund Advisors (which in turn pays a portion of such fee to Nuveen Asset Management) based on a percentage of Managed Assets. Managed Assets include the proceeds realized and managed from the Fund’s use of most types of leverage (excluding the leverage exposure attributable to the use of futures, swaps and similar derivatives). Because Managed Assets include the Fund’s net assets as well as assets that are attributable to the Fund’s investment of the proceeds of its leverage, it is anticipated that the Fund’s Managed Assets will be greater than its net assets. Nuveen Fund Advisors and Nuveen Asset Management will be responsible for using leverage to pursue the Fund’s investment objective. Nuveen Fund Advisors and Nuveen Asset Management will base their decision regarding whether and how much leverage to use for the Fund, and the terms of that leverage, on their assessment of whether such use of leverage is in the best interests of the Fund. However, a decision to employ or increase leverage will have the effect, all other things being equal, of increasing Managed Assets and in turn Nuveen Fund Advisors’ and Nuveen Asset Management’s management fees. Thus, Nuveen Fund Advisors and Nuveen Asset Management may have a conflict of interest in determining whether to use or increase leverage. Nuveen Fund Advisors and Nuveen Asset Management will seek to manage that potential conflict by using leverage only when they determine that it would be in the best interests of the Fund and its Common Shareholders, and by periodically reviewing with the Board of Trustees the Fund’s performance and the Fund’s degree of overall use of leverage and the impact of the use of leverage on that performance.

The Fund may issue “senior securities” as defined under the 1940 Act. The 1940 Act generally defines a “senior security” as any bond, debenture, note, or similar obligation or instrument constituting a security and evidencing indebtedness, and any stock of a class having priority over any other class as to distribution of assets or payment of dividends; however, the term does not include any promissory note or other evidence of indebtedness issued in consideration of any loan, extension, or renewal thereof, made for temporary purposes and in an amount not exceeding five percent of the value of the Fund’s total assets. A loan shall be presumed to be for temporary purposes if it is repaid within 60 days and is not extended or renewed.

Under the 1940 Act, the Fund is not permitted to issue “senior securities” that are Preferred Shares if, immediately after the issuance of Preferred Shares, the asset coverage ratio with respect to such Preferred Shares would be less than 200%. With respect to any such Preferred Shares, asset coverage means the ratio which the value of the total assets of the Fund, less all liabilities and indebtedness not represented by senior securities, bears to the aggregate amount of senior securities representing indebtedness of the Fund plus the aggregate liquidation preference of such Preferred Shares.

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Under the 1940 Act, the Fund is not permitted to issue “senior securities representing indebtedness” if, immediately after the issuance of such senior securities representing indebtedness, the asset coverage ratio with respect to such senior securities would be less than 300%. “Senior securities representing indebtedness” include borrowings (including loans from financial institutions) and debt securities. “Senior securities representing indebtedness” also include other derivative investments or transactions, such as reverse repurchase agreements, to the extent the Fund has not fully covered, segregated or earmarked cash or liquid assets in accordance with the 1940 Act, the rules thereunder, and applicable positions of the SEC and its staff. With respect to any such senior securities representing debt, asset coverage means the ratio which the value of the total assets of the Fund, less all liabilities and indebtedness not represented by senior securities (as defined in the 1940 Act), bears to the aggregate amount of such borrowing represented by senior securities issued by the Fund.

If the Fund issues senior securities and the asset coverage with respect to such senior securities declines below the required ratios discussed above (as a result of market fluctuations or otherwise), the Fund may sell portfolio securities when it may be disadvantageous to do so.

Certain types of leverage used by the Fund may result in the Fund being subject to certain covenants, asset coverage or other portfolio composition limits by its lenders, debt or preferred securities purchasers, rating agencies that may rate the debt or preferred securities, or reverse repurchase counterparties. Such limitations may be more stringent than those imposed by the 1940 Act and may impact whether the Fund is able to maintain its desired amount of leverage. At this time Nuveen Fund Advisors does not believe that any such potential investment limitations will impede it from managing the Fund’s portfolio in accordance with its investment objective and policies.

Utilization of leverage is a speculative investment technique and involves certain risks to the Common Shareholders, including increased variability of the Fund’s net income, distributions and NAV in relation to market changes. See “Risks—Fund Level Risks—Leverage Risk” in the Prospectus. There is no assurance that the Fund will use leverage or that the Fund’s use of leverage will work as planned or achieve its goals.

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INVESTMENT RESTRICTIONS

Except as described below, the Fund, as a fundamental policy, may not, without the approval of the holders of a majority of the outstanding Common Shares and, if issued, Preferred Shares voting together as a single class, and of the holders of a majority of the outstanding Preferred Shares voting as a separate class:

(1) Issue senior securities, as defined in the 1940 Act, except as permitted by the 1940 Act¹;

(2) Borrow money, except as permitted by the 1940 Act and exemptive orders granted under the 1940 Act^1,2;

(3) Act as underwriter of another issuer’s securities, except to the extent that the Fund may be deemed to be an underwriter within the meaning of the Securities Act of 1933, as amended (the “1933 Act”) in connection with the purchase and sale of portfolio securities;

(4) Invest more than 25% of its total assets in investments of issuers in any one industry or group of related industries; provided, however, that such limitation shall not apply to municipal securities other than those municipal securities backed principally by the assets and revenues of non-governmental users nor shall it apply to obligations issued or guaranteed by the United States Government or by its agencies or instrumentalities, and provided further that for purposes of this limitation, the term “issuer” shall not include a lender selling a participation to the Fund together with any other person interpositioned between such lender and the Fund with respect to a participation that shifts to the Fund the direct debtor-creditor relationship with the borrower³;

(5) Purchase or sell real estate, but this shall not prevent the Fund from investing in securities secured by real estate or interests therein or foreclosing upon and selling such real estate and this shall not prevent the Fund from investing in securities of companies that deal in real estate or are engaged in the real estate business, including real estate investment trusts, and securities secured by real estate or interests therein and the Fund may hold and sell real estate or; mortgages on real estate acquired through default, liquidation, or other distributions of an interest in real estate as a result of the Fund’s ownership of such securities;

(6) Purchase or sell physical commodities unless acquired as a result of ownership of securities or other instruments (but this shall not prevent the Fund from purchasing or selling options, futures contracts or derivative instruments or from investing in securities or other instruments backed by physical commodities);

(7) Make loans, except as permitted by the 1940 Act and exemptive orders granted under the 1940 Act⁴; and

¹ Section 18(c) of the 1940 Act generally limits a registered closed-end investment company to issuing one class of senior securities representing indebtedness and one class of senior securities representing stock, except that the class of indebtedness or stock may be issued in one or more series, and promissory notes or other evidences of indebtedness issued in consideration of any loan, extension, or renewal thereof, made by a bank or other person and privately arranged, and not intended to be publicly distributed, are not deemed a separate class of senior securities.

² Section 18(a) of the 1940 Act generally prohibits a registered closed-end fund from incurring borrowings if, immediately thereafter, the aggregate amount of its borrowings exceeds 33¹/₃% of its total assets. The Fund has not applied for, and currently does not intend to apply for, such exemptive relief, but reserves the right to do so in the future.

³ For purposes of this restriction, governments and their political subdivisions are not part of any industry.

⁴ Section 21 of the 1940 Act makes it unlawful for a registered investment company, like the Fund, to lend money or other property if (i) the investment company’s policies set forth in its registration statement do not permit such a loan or (ii) the borrower controls or is under common control with the investment company. The SEC has granted to Nuveen Fund Advisors, and to certain funds to which it advises, exemptive relief from Section 21 (the “NFA Section 21 Relief”). The NFA Section 21 Relief may be relied upon by the Fund, so long as the Fund complies with the terms and conditions of the NFA Section 21 Relief.

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(8) With respect to 75% of the value of the Fund’s total assets, purchase any securities (other than obligations issued or guaranteed by the United States government or by its agencies or instrumentalities and securities of other investment companies), if as a result more than 5% of the Fund’s total assets would then be invested in securities of a single issuer or if as a result the Fund would hold more than 10% of the outstanding voting securities of any single issuer.

Under the 1940 Act, investments of more than 25% of a fund’s total assets in one or more issuers in the same industry or group of industries constitutes concentration. The policy in subparagraph (4) above will be interpreted in accordance with public interpretations of the SEC and its staff pertaining to concentration from time to time. The policy in subparagraph (4) above will be interpreted to give broad authority to the Fund as to how to classify issuers within or among either industries or groups of related industries. The Fund currently utilizes any one or more industry classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by Nuveen Fund Advisors. For the purpose of applying the 25% industry limitation set forth in subparagraph (4) above, the Fund will consider the investments of underlying investment companies when determining compliance with its concentration policy, to the extent the Fund has sufficient information about such investments.

For the purpose of applying the limitation set forth in subparagraph (8) above, an issuer shall be deemed the sole issuer of a security when its assets and revenues are separate from other governmental entities and its securities are backed only by its assets and revenues. Similarly, in the case of a non-governmental issuer, such as an industrial corporation or a privately owned or operated hospital, if the security is backed only by the assets and revenues of the non-governmental issuer, then such non-governmental issuer would be deemed to be the sole issuer. Where a security is also backed by the enforceable obligation of a superior or unrelated governmental or other entity (other than a bond insurer), it shall also be included in the computation of securities owned that are issued by such governmental or other entity. Where a security is guaranteed by a governmental entity or some other facility, such as a bank guarantee or letter of credit, such a guarantee or letter of credit would be considered a separate security and would be treated as an issue of such government, other entity or bank. When a municipal security is insured by bond insurance, it shall not be considered a security that is issued or guaranteed by the insurer; instead, the issuer of such municipal security will be determined in accordance with the principles set forth above. The foregoing restrictions do not limit the percentage of the Fund’s assets that may be invested in municipal securities insured by any given insurer.

Under the 1940 Act, the Fund may invest only up to 10% of its total assets in the aggregate in shares of other investment companies and only up to 5% of its total assets in any one investment company, provided the investment does not represent more than 3% of the voting stock of the acquired investment company at the time such shares are purchased; provided, however, the Fund may exceed such limits pursuant to any SEC rule promulgated thereunder or exemptive relief obtained thereunder. As a shareholder in any investment company, the Fund will bear its ratable share of that investment company’s expenses, and will also remain subject to payment of the Fund’s management, advisory and administrative fees with respect to assets so invested. Holders of Common Shares would therefore be subject to duplicative expenses to the extent the Fund invests in other investment companies.

In addition to the foregoing fundamental investment policies, the Fund is also subject to the following non-fundamental restrictions and policies, which may be changed by the Board of Trustees upon 60 days’ prior written notice to shareholders. The Fund may not:

(1) Purchase securities of open-end or closed-end investment companies except in compliance with the 1940 Act, the rules promulgated thereunder, or any exemptive relief obtained thereunder; and

(2) Purchase securities of companies for the purpose of exercising control, except to the extent that exercise by the Fund of its rights under loan agreements would be deemed to constitute exercising control.

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The Fund may be subject to certain restrictions imposed by guidelines of one or more credit rating agencies that may issue ratings for Preferred Shares, commercial paper or notes, or, if the Fund borrows from a lender, by the lender. These guidelines may impose asset coverage or portfolio composition requirements that are more stringent than those imposed on the Fund by the 1940 Act. If these restrictions were to apply, it is not anticipated that these guidelines will impede Nuveen Fund Advisors or Nuveen Asset Management from managing the Fund’s portfolio in accordance with the Fund’s investment objective and policies.

PORTFOLIO COMPOSITION AND OTHER INFORMATION

The following information supplements the discussion of the Fund’s investment objective, policies, and strategies that are described in the Prospectus.

Corporate Bonds

Corporate bonds are fully taxable debt obligations issued by corporations. These securities fund capital improvements, expansions, debt refinancing or acquisitions that require more capital than would ordinarily be available from a single lender. Investors in corporate bonds lend money to the issuing corporation in exchange for interest payments and repayment of the principal at a set maturity date. Rates on corporate bonds are set according to prevailing interest rates at the time of the issue, the credit rating of the issuer, the length of the maturity and other terms of the security, such as a call feature.

Corporate bonds come in many varieties and may differ in the way that interest is calculated, the amount and frequency of payments, the type of collateral, if any, and the presence of special features (e.g., conversion rights). The Fund’s investments in corporate bonds may include, but are not limited to, senior, junior, secured and unsecured bonds, notes and other debt securities, and may be fixed rate, variable rate or floating rate, among other things. Holders of corporate bonds, as creditors, have a prior legal claim over common and preferred stockholders as to both income and assets of the issuer for the principal and interest due to them, and may have a prior claim over other creditors, but are generally subordinate to any existing lenders in the issuer’s capital structure.

Corporate bonds are subject to the risk of an issuer’s inability to meet principal and interest payments on the obligations and may also be subject to price volatility due to such factors as market interest rates, the issuer’s performance or credit rating, market perception of the creditworthiness of the issuer and general market liquidity. In addition, corporate restructurings, such as mergers, leveraged buyouts, takeovers or similar corporate transactions are often financed by an increase in a corporate issuer’s debt securities. As a result of the added debt burden, the credit quality and market value of an issuer’s existing corporate bonds may decline significantly. Corporate bonds usually yield more than government or agency bonds due to the presence of credit risk.

Emerging Market Issuers

The Fund will invest in investments of emerging market issuers. The Fund’s emerging market investments include a broad range of investments of emerging market issuers such as government bonds, corporate bonds, and other sovereign or quasi-sovereign debt instruments. The Fund will classify an issuer of an investment based on the issuer’s country of origin, generally as determined by an unaffiliated, recognized financial data provider. An issuer’s country or origin is based on a number of criteria, such as the issuer’s country of domicile or country in which the issuer conducts its primary operations, the primary exchange on which its securities trade, the location from which the majority of the issuer’s revenue comes, and the issuer’s reporting currency. The term “emerging market” describes any country or market that is generally considered to be emerging or developing by major organizations in the international financial community, such as the International Finance Corporation, or by financial industry analysts like MSCI, Inc., which compiles the MSCI Emerging Markets Index, and J.P. Morgan Chase & Co., which compiles several fixed-income emerging markets benchmarks; or other countries or markets with similar emerging characteristics. Emerging markets can include every nation in the world except

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the United States, Canada, Japan, Australia, New Zealand and most nations located in Western Europe. Notwithstanding the foregoing, the fixed-income portfolio management team generally views Israel as an emerging market.

The Fund’s emerging market debt investments may also include secured loans, unsecured loans, senior loans, second lien loans, subordinated debt and sukuk debt instruments.

Sukuk are certificates structured to comply with Sharia law and its investment principles. These certificates usually represent the beneficial ownership interest in a portfolio of eligible existing or future tangible or intangible assets (“underlying assets”). In a typical sukuk, a special purpose vehicle (“SPV”) issues certificates to investors in exchange for their capital. The SPV transfers the capital to or for the benefit of the entity that is raising the capital (the “obligor”) in exchange for the underlying assets of the obligor that are held in trust by the SPV. The obligor is obligated, usually through a series of contracts, to make periodic payments to investors through the SPV over a specified period of time and a final payment to investors through the SPV on a date certain. Obligors of sukuk include financial institutions and corporations, foreign governments and agencies of foreign governments, including issuers in emerging markets.

Sovereign and Supranational Securities

Sovereign securities are issued or guaranteed by foreign sovereign governments or their agencies, authorities, political subdivisions or instrumentalities, and supranational agencies. A supranational agency is a multinational union or association in which member countries cede authority and sovereignty on a limited number of matters to the group, whose decisions are binding upon its members. Quasi-sovereign securities typically are issued by companies or agencies that may receive financial support or backing from a local government or in which the government owns a majority of the issuer’s voting shares.

The ability of a foreign sovereign issuer, especially in an emerging market country, to make timely and ultimate payments on its debt obligations will be strongly influenced by the sovereign issuer’s balance of payments, including export performance, its access to international credits and investments, fluctuations of interest rate and the extent of its foreign reserves. A country whose exports are concentrated in a few commodities or whose economy depends on certain strategic imports could be vulnerable to fluctuations in international prices of these commodities or imports. To the extent that a country receives payment for its export in currencies other than dollars, its ability to make debt payments denominated in dollars could be adversely affected. If a sovereign issuer cannot generate sufficient earnings from foreign trade to service its external debt, it may need to depend on continuing loans and aid from foreign governments, commercial banks and multinational organizations. There may be no bankruptcy proceedings similar to those in the U.S. by which defaulted interest may be collected.

The Fund also may invest in debt obligations issued or guaranteed by supranational agencies organized or supported by several national governments, such as the International Bank for Reconstruction and Development (the “World Bank”), the Inter-American Development Bank, the Asian Development Bank, and the European Investment Bank. In addition, the Portfolio may purchase debt obligations of foreign corporations or financial institutions, such as Yankee bonds (dollar-denominated bonds sold in the United States by foreign companies), Samurai bonds (yen-denominated bonds sold in Japan by non-Japanese issuers), and Euro bonds (bonds not issued in the country (and possibly not the currency of the country) of the issuer).

Foreign Securities Exchanges

Fixed commissions on foreign securities exchanges are generally higher than negotiated commissions on U.S. exchanges. Foreign markets also have different clearance and settlement procedures, and in some markets there have been times when settlements have been unable to keep pace with the volume of securities transactions, making it difficult to conduct such transactions. Further, satisfactory custodial services for investment securities may not be available in some countries having smaller, emerging capital markets, which may result in the Fund

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incurring additional costs and delays in transporting such securities outside such countries. Delays in settlement could result in temporary periods when a portion of the assets of the Fund is uninvested. In addition, settlement problems could cause the Fund to miss attractive investment opportunities or to incur losses due to an inability to sell or deliver securities in a timely fashion. In the event of a default by an issuer of foreign securities, it may be more difficult for the Fund to obtain or to enforce a judgment against the issuer.

Municipal Bonds

The Fund may invest in taxable and tax-exempt municipal securities, including municipal bonds and notes, other securities issued to finance and refinance public projects, and other related securities and derivative instruments creating exposure to municipal bonds, notes and securities that provide for the payment of interest income that is exempt from U.S. regular federal income tax. Municipal bonds are often issued by state and local governmental entities to finance or refinance public projects such as roads, schools, and water supply systems. Municipal bonds may also be issued on behalf of private entities or for private activities, such as housing, medical and educational facility construction, or for privately owned transportation, electric utility and pollution control projects. Municipal bonds may be issued on a long-term basis to provide permanent financing. The repayment of such debt may be secured generally by a pledge of the full faith and credit taxing power of the issuer, a limited or special tax, or any other revenue source, including project revenues, which may include tolls, fees and other user charges, lease payments and mortgage payments. Municipal bonds may also be issued to finance projects on a short-term interim basis, anticipating repayment with the proceeds of the later issuance of long-term debt. The Fund may purchase municipal securities in the form of bonds, notes, leases or certificates of participation; structured as callable or non-callable; with payment forms including fixed coupon, variable rate, zero coupon, capital appreciation bonds, tender option bonds, and residual interest bonds or inverse floating rate securities; or acquired through investments in pooled vehicles, partnerships or other investment companies. Inverse floating rate securities are securities that pay interest at rates that vary inversely with changes in prevailing short-term tax-exempt interest rates and represent a leveraged investment in an underlying municipal security, which could have the economic effect of leverage.

Municipal securities are either general obligation or revenue bonds and typically are issued to finance public projects (such as roads or public buildings), to pay general operating expenses, or to refinance outstanding debt.

Municipal bonds may also be issued on behalf of private entities or for private activities, such as housing, medical and educational facility construction, or for privately owned industrial development and pollution control projects. General obligation bonds are backed by the full faith and credit, or taxing authority, of the issuer and may be repaid from any revenue source; revenue bonds may be repaid only from the revenues of a specific facility or source. The Fund may also purchase municipal securities that represent lease obligations, municipal notes, pre-refunded municipal securities, private activity bonds, securities issued by tender option bonds, which includes inverse floating rate securities, and other related securities and derivative instruments that create exposure to municipal bonds, notes and securities and that provide for the payment of interest income that is exempt from U.S. regular federal income tax.

The municipal bonds in which the Fund will invest are generally issued by states, cities and local authorities and certain possessions and territories of the United States (such as Puerto Rico and Guam), and pay interest that, in the opinion of bond counsel to the issuer (or on the basis of other authority believed by Nuveen Asset Management to be reliable), is exempt from U.S. regular federal income tax, although the interest may be subject to the federal alternative minimum tax.

The yields on Municipal bonds depend on a variety of factors, including prevailing interest rates and the condition of the general money market and the municipal bond market, the size of a particular offering, the maturity of the obligation and the rating of the issue. The market value of municipal securities will vary with changes in interest rate levels and as a result of changing evaluations of the ability of their issuers to meet interest and principal payments.

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A municipal security’s market value generally will depend upon its form, maturity, call features, and interest rate, as well as the credit quality of the issuer, all such factors examined in the context of the municipal securities market and interest rate levels and trends.

Municipal Leases and Certificates of Participation. The Fund also may purchase municipal bonds that represent lease obligations and certificates of participation in such leases. These carry special risks because the issuer of the securities may not be obligated to appropriate money annually to make payments under the lease. A municipal lease is an obligation in the form of a lease or installment purchase which is issued by a state or local government to acquire equipment and facilities. Income from such obligations is generally exempt from state and local taxes in the state of issuance. Leases and installment purchase or conditional sale contracts (which normally provide for title to the leased asset to pass eventually to the governmental issuer) have evolved as a means for governmental issuers to acquire property and equipment without meeting the constitutional and statutory requirements for the issuance of debt. The debt issuance limitations are deemed to be inapplicable because of the inclusion in many leases or contracts of “non-appropriation” clauses that relieve the governmental issuer of any obligation to make future payments under the lease or contract unless money is appropriated for such purpose by the appropriate legislative body on a yearly or other periodic basis. In addition, such leases or contracts may be subject to the temporary abatement of payments in the event the issuer is prevented from maintaining occupancy of the leased premises or utilizing the leased equipment or facilities. Although the obligations may be secured by the leased equipment or facilities, the disposition of the property in the event of non-appropriation or foreclosure might prove difficult, time consuming and costly, and result in a delay in recovering, or the failure to recover fully, the Fund’s original investment. To the extent that the Fund invests in unrated municipal leases or participates in such leases, the credit quality rating and risk of cancellation of such unrated leases will be monitored on an ongoing basis. In order to reduce this risk, the Fund will only purchase municipal securities representing lease obligations where Nuveen Asset Management believes the issuer has a strong incentive to continue making appropriations until maturity.

A certificate of participation represents an undivided interest in an unmanaged pool of municipal leases, an installment purchase agreement or other instruments. The certificates are typically issued by a municipal agency, a trust or other entity that has received an assignment of the payments to be made by the state or political subdivision under such leases or installment purchase agreements. Such certificates provide the Fund with the right to a pro rata undivided interest in the underlying municipal securities. In addition, such participations generally provide the Fund with the right to demand payment, on not more than seven days’ notice, of all or any part of the Fund’s participation interest in the underlying municipal securities, plus accrued interest.

Municipal Notes. Municipal securities in the form of notes generally are used to provide for short-term capital needs, in anticipation of an issuer’s receipt of other revenues or financing, and typically have maturities of up to three years. Such instruments may include tax anticipation notes, revenue anticipation notes, bond anticipation notes, tax and revenue anticipation notes and construction loan notes. Tax anticipation notes are issued to finance the working capital needs of governments. Generally, they are issued in anticipation of various tax revenues, such as income, sales, property, use and business taxes, and are payable from these specific future taxes. Revenue anticipation notes are issued in expectation of receipt of other kinds of revenue, such as federal revenues available under federal revenue sharing programs. Bond anticipation notes are issued to provide interim financing until long-term bond financing can be arranged. In most cases, the long-term bonds then provide the funds needed for repayment of the bond anticipation notes. Tax and revenue anticipation notes combine the funding sources of both tax anticipation notes and revenue anticipation notes. Construction loan notes are sold to provide construction financing. Mortgage notes insured by the Federal Housing Authority secure these notes; however, the proceeds from the insurance may be less than the economic equivalent of the payment of principal and interest on the mortgage note if there has been a default. The anticipated revenues from taxes, grants or bond financing generally secure the obligations of an issuer of municipal notes. An investment in such instruments, however, presents a risk that the anticipated revenues will not be received or that such revenues will be insufficient to satisfy the issuer’s payment obligations under the notes or that refinancing will be otherwise unavailable.

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Pre-Refunded Municipal Securities. The principal of and interest on pre-refunded municipal securities are no longer paid from the original revenue source for the securities. Instead, the source of such payments is typically an escrow fund consisting of U.S. government securities. The assets in the escrow fund are derived from the proceeds of refunding bonds issued by the same issuer as the pre-refunded municipal securities. Issuers of municipal securities use this advance refunding technique to obtain more favorable terms with respect to securities that are not yet subject to call or redemption by the issuer. For example, advance refunding enables an issuer to refinance debt at lower market interest rates, restructure debt to improve cash flow or eliminate restrictive covenants in the indenture or other governing instrument for the pre-refunded municipal securities. However, except for a change in the revenue source from which principal and interest payments are made, the pre-refunded municipal securities remain outstanding on their original terms until they mature or are redeemed by the issuer. Interest paid on a municipal bond issued after December 31, 2017 to advance refund another municipal bond is subject to U.S. federal income tax.

Private Activity Bonds. Private activity bonds, formerly referred to as industrial development bonds, are issued by or on behalf of public authorities to obtain funds to provide privately operated housing facilities, airport, mass transit or port facilities, sewage disposal, solid waste disposal or hazardous waste treatment or disposal facilities and certain local facilities for water supply, gas or electricity. Other types of private activity bonds, the proceeds of which are used for the construction, equipment, repair or improvement of privately operated industrial or commercial facilities, may constitute municipal securities, although the current federal tax laws place substantial limitations on the size of such issues.

Inverse Floating Rate Securities. Inverse floating rate securities (sometimes referred to as “inverse floaters”) are securities whose interest rates bear an inverse relationship to the interest rate on another security or the value of an index. Generally, inverse floating rate securities represent beneficial interests in a special purpose trust formed for the purpose of holding municipal bonds. The special purpose trust typically sells two classes of beneficial interests or securities: floating rate securities (sometimes referred to as short-term floaters or tender option bonds) and inverse floating rate securities (sometimes referred to as inverse floaters or residual interest securities). Both classes of beneficial interests are represented by certificates. The short-term floating rate securities have first priority on the cash flow from the municipal bonds held by the special purpose trust. Typically, a third party, such as a bank, broker-dealer or other financial institution, grants the floating rate security holders the option, at periodic intervals, to tender their securities to the institution and receive the face value thereof. As consideration for providing the option, the financial institution receives periodic fees. The holder of the short-term floater effectively holds a demand obligation that bears interest at the prevailing shortterm, tax-exempt rate. However, the institution granting the tender option will not be obligated to accept tendered short-term floaters in the event of certain defaults or a significant downgrade in the credit rating assigned to the bond issuer. For its inverse floating rate investment, the Fund receives the residual cash flow from the special purpose trust. Because the holder of the short-term floater is generally assured liquidity at the face value of the security, the Fund as the holder of the inverse floater assumes the interest rate cash flow risk and the market value risk associated with the municipal security deposited into the special purpose trust. The volatility of the interest cash flow and the residual market value will vary with the degree to which the trust is leveraged. This is expressed in the ratio of the total face value of the short-term floaters in relation to the value of the residual inverse floaters that are issued by the special purpose trust. In addition, all voting rights and decisions to be made with respect to any other rights relating to the municipal bonds held in the special purpose trust are passed through to the Fund, as the holder of the residual interest securities.

Because increases in the interest rate on the short-term floaters reduce the residual interest paid on inverse floaters, and because fluctuations in the value of the municipal bond deposited in the special purpose trust affect the value of the inverse floater only, and not the value of the short-term floater issued by the trust, and because fluctuations in the value of the municipal bond deposited in the special purpose trust affect the value of the inverse floater only, and not the value of the short-term floater issued by the trust, inverse floaters’ value is generally more volatile than that of fixed rate bonds. The market price of inverse floating rate securities is generally more volatile than the underlying securities due to the leveraging effect of this ownership structure.

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These securities generally will underperform the market of fixed rate bonds in a rising interest rate environment (i.e., when bond values are falling), but tend to outperform the market of fixed rate bonds when interest rates decline or remain relatively stable. Although volatile, inverse floaters typically offer the potential for yields exceeding the yields available on fixed rate bonds with comparable credit quality, coupon, call provisions and maturity. Inverse floaters have varying degrees of liquidity based upon, among other things, the liquidity of the underlying securities deposited in a special purpose trust.

The Fund may invest in inverse floating rate securities issued by special purpose trusts that have recourse to the Fund. In Nuveen Fund Advisors’ and Nuveen Asset Management’s discretion, the Fund may enter into a separate shortfall and forbearance agreement with the liquidity provider to a special purpose trust. The Fund may enter into such recourse agreements (i) when the liquidity provider to the special purpose trust requires such an agreement because the level of leverage in the trust exceeds the level that the liquidity provider is willing support absent such an agreement; and/or (ii) to seek to prevent the liquidity provider from collapsing the trust in the event that the municipal obligation held in the trust has declined in value. Such an agreement would require the Fund to reimburse the third party granting liquidity to the floating rate security holders the special purpose trust, upon termination of the trust issuing the inverse floater, the difference between the liquidation value of the bonds held in the trust and the principal amount due to the holders of floating rate interests. Such agreements may expose the Fund to a risk of loss that exceeds its investment in the inverse floating rate securities. Absent a shortfall and forbearance agreement, the Fund would not be required to make such a reimbursement. If the Fund chooses not to enter into such an agreement, the special purpose trust could be liquidated and the Fund could incur a loss.

The Fund may invest in both inverse floating rate securities and floating rate securities (as discussed below) issued by the same special purpose trust.

The Fund will segregate or earmark liquid assets with its custodian in accordance with the 1940 Act to cover its obligations with respect to its investments in special purpose trusts.

Investments in inverse floating rate securities create leverage. The use of leverage creates special risks for Common Shareholders. See “Leverage” and “Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk” in the Prospectus.

Floating Rate Securities. The Fund may also invest in floating rate securities issued by special purpose trusts. Floating rate securities may take the form of short-term floating rate securities or the option period may be substantially longer. Generally, the interest rate earned will be based upon the market rates for municipal securities with maturities or remarketing provisions that are comparable in duration to the periodic interval of the tender option, which may vary from weekly, to monthly, to extended periods of one year or multiple years. Since the option feature has a shorter term than the final maturity or first call date of the underlying bond deposited in the trust, the Fund as the holder of the floating rate security relies upon the terms of the agreement with the financial institution furnishing the option as well as the credit strength of that institution. As further assurance of liquidity, the terms of the trust provide for a liquidation of the municipal securities deposited in the trust and the application of the proceeds to pay off the floating rate security. The trusts that are organized to issue both shortterm floating rate securities and inverse floaters generally include liquidation triggers to protect the investor in the floating rate security.

Special Taxing Districts. Special taxing districts are organized to plan and finance infrastructure developments to induce residential, commercial and industrial growth and redevelopment. The bond financing methods such as tax increment finance, tax assessment, special services district and Mello-Roos bonds, are generally payable solely from taxes or other revenues attributable to the specific projects financed by the bonds without recourse to the credit or taxing power of related or overlapping municipalities. They often are exposed to real estate development-related risks and can have more taxpayer concentration risk than general tax-supported bonds, such as general obligation bonds. Further, the fees, special taxes, or tax allocations and other revenues that

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are established to secure such financings are generally limited as to the rate or amount that may be levied or assessed and are not subject to increase pursuant to rate covenants or municipal or corporate guarantees. The bonds could default if development failed to progress as anticipated or if larger taxpayers failed to pay the assessments, fees and taxes as provided in the financing plans of the districts.

When-Issued and Delayed Delivery Transactions. The Fund may buy and sell municipal securities on a when-issued or delayed delivery basis, making payment or taking delivery at a later date, normally within 15 to 45 days of the trade date. This type of transaction may involve an element of risk because no interest accrues on the bonds prior to settlement and, because bonds are subject to market fluctuations, the value of the bonds at time of delivery may be less (or more) than cost. A separate account of the Fund will be established with its custodian consisting of cash, cash equivalents, or liquid securities having a market value at all times at least equal to the amount of the commitment.

Asset-Backed Securities

ABS are securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets, either fixed or revolving, that by their terms convert into cash within a finite time period. Asset-backed securitization is a financing technique in which financial assets, in many cases themselves less liquid, are pooled and converted into instruments that may be offered and sold in the capital markets. In a basic securitization structure, an entity, often a financial institution, originates or otherwise acquires a pool of financial assets, either directly or through an affiliate. It then sells the financial assets, again either directly or through an affiliate, to a specially created investment vehicle that issues securities “backed” or supported by those financial assets, which securities are ABS. Payment on the ABS depends primarily on the cash flows generated by the assets in the underlying pool and other rights designed to assure timely payment, such as liquidity facilities, guarantees or other features generally known as credit enhancements. While residential mortgages were the first financial assets to be securitized in the form of MBS, non-mortgage related securitizations have grown to include many other types of financial assets, such as credit card receivables, auto loans and student loans.

U.S. Government Obligations

Securities issued or guaranteed by U.S. government agencies and instrumentalities include obligations that are supported by: (a) the full faith and credit of the U.S. Treasury (e.g., direct pass-through certificates of Ginnie Maes); (b) the limited authority of the issuer or guarantor to borrow from the U.S. Treasury (e.g., obligations of Federal Home Loan Banks); or (c) only the credit of the issuer or guarantor (e.g., obligations of the Federal Home Loan Mortgage Corporation). In the case of obligations not backed by the full faith and credit of the U.S. Treasury, the agency issuing or guaranteeing the obligation is principally responsible for ultimate repayment.

Agencies and instrumentalities that issue or guarantee debt securities and that have been established or sponsored by the U.S. government include, in addition to those identified above, the Bank for Cooperatives, the Export-Import Bank, the Federal Farm Credit System, the Federal Intermediate Credit Banks, the Federal Land Banks, the Federal National Mortgage Association and the Student Loan Marketing Association.

Mortgage-Backed Securities, including Commercial Mortgage-Backed Securities

The Funds may invest in mortgage-backed securities. A mortgage-backed security is a type of pass-through security, which is a security representing pooled debt obligations repackaged as interests that pass income through an intermediary to investors. In the case of mortgage-backed securities, the ownership interest is in a pool of mortgage loans. Commercial mortgage-backed securities (“CMBS”) are backed by a pool of mortgages on commercial property.

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Mortgage-backed securities are most commonly issued or guaranteed by the Government National Mortgage Association (“Ginnie Mae” or “GNMA”), the Federal National Mortgage Association (“Fannie Mae” or “FNMA”) or the Federal Home Loan Mortgage Corporation (“Freddie Mac” or “FHLMC”), but may also be issued or guaranteed by other private issuers.

GNMA is a government-owned corporation that is an agency of the U.S. Department of Housing and Urban Development. It guarantees, with the full faith and credit of the United States, full and timely payment of all monthly principal and interest on its mortgage-backed securities.

Government-related guarantors (i.e., not backed by the full faith and credit of the United States government) include FNMA and FHLMC. FNMA is a government-sponsored corporation. FNMA purchases conventional (i.e., not insured or guaranteed by any government agency) residential mortgages from a list of approved seller/servicers which include state and federally chartered savings and loan associations, mutual savings banks, commercial banks and credit unions and mortgage bankers. Pass-through securities issued by FNMA are guaranteed as to timely payment of principal and interest by FNMA, but are not backed by the full faith and credit of the United States Government. FHLMC was created by Congress in 1970 for the purpose of increasing the availability of mortgage credit for residential housing. It is a government-sponsored corporation that issues Participation Certificates (“PCs”), which are pass-through securities, each representing an undivided interest in a pool of residential mortgages. FHLMC guarantees the timely payment of interest and ultimate collection of principal, but PCs are not backed by the full faith and credit of the United States government.

On September 6, 2008, the Federal Housing Finance Agency (“FHFA”) placed FNMA and FHLMC into conservatorship. As the conservator, FHFA succeeded to all rights, titles, powers and privileges of FNMA and FHLMC and of any stockholder, officer or director of FNMA and FHLMC with respect to FNMA and FHLMC and the assets of FNMA and FHLMC. FHFA selected a new chief executive officer and chairman of the board of directors for each of FNMA and FHLMC. In addition, the U.S. Treasury Department agreed to provide FNMA and FHLMC with up to $100 billion of capital each to ensure that they are able to continue to provide ongoing liquidity to the U.S. home mortgage market. FNMA and FHLMC are continuing to operate as going concerns while in conservatorship and each remain liable for all of its obligations, including its guaranty obligations, associated with its mortgage-backed securities.

Mortgage-backed securities issued by private issuers, whether or not such obligations are subject to guarantees by the private issuer, may entail greater risk than obligations directly or indirectly guaranteed by the U.S. government. Any investments a Fund makes in mortgage-related securities that are issued by private issuers have some exposure to subprime loans as well as to the mortgage and credit markets generally. Private issuers include commercial banks, savings associations, mortgage companies, investment banking firms, finance companies and special purpose finance entities (called special purpose vehicles or structured investment vehicles) and other entities that acquire and package mortgage loans for resale as mortgage-related securities. Unlike mortgage-related securities issued or guaranteed by the U.S. government or one of its sponsored entities, mortgage-related securities issued by private issuers do not have a government or government sponsored entity guarantee, but may have credit enhancement provided by external entities such as banks or financial institutions or achieved through the structuring of the transaction itself. Examples of such credit support arising out of the structure of the transaction include: (1) the issuance of senior and subordinated securities (e.g., the issuance of securities by a special purpose vehicle in multiple classes or “tranches,” with one or more classes being senior to other subordinated classes as to the payment of principal and interest, with the result that defaults on the underlying mortgage loans are borne first by the holders of the subordinated class); (2) the creation of “reserve funds” (in which case cash or investments, sometimes funded from a portion of the payments on the underlying mortgage loans, are held in reserve against future losses); and (3) “overcollateralization” (in which case the scheduled payments on, or the principal amount of, the underlying mortgage loans exceeds that required to make payment of the securities and pay any servicing or other fees). However, there can be no guarantee that credit enhancements, if any, will be sufficient to prevent losses in the event of defaults on the underlying mortgage loans.

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In addition, mortgage-related securities that are issued by private issuers are not subject to the underwriting requirements for the underlying mortgages that are applicable to those mortgage related securities that have a government or government-sponsored entity guarantee. As a result, the mortgage loans underlying private mortgage-related securities may, and frequently do, have less favorable collateral, credit risk or other underwriting characteristics than government or government sponsored mortgage-related securities and have wider variances in a number of terms including interest rate, term, size, purpose and borrower characteristics. Privately issued pools more frequently include second mortgages, high loan-to-value mortgages and manufactured housing loans. The coupon rates and maturities of the underlying mortgage loans in a private-label mortgage-related securities pool may vary to a greater extent than those included in a government guaranteed pool, and the pool may include subprime mortgage loans. Subprime loans refer to loans made to borrowers with weakened credit histories or with a lower capacity to make timely payments on their loans. For these reasons, the loans underlying these securities have had in many cases higher default rates than those loans that meet government underwriting requirements.

The risk of non-payment is greater for mortgage-related securities that are backed by mortgage pools that contain subprime loans, but a level of risk exists for all loans. Market factors adversely affecting mortgage loan repayments may include a general economic turndown, high unemployment, a general slowdown in the real estate market, a drop in the market prices of real estate, or an increase in interest rates resulting in higher mortgage payments by holders of adjustable rate mortgages.

Privately issued mortgage-related securities are generally less liquid than obligations directly or indirectly guaranteed by the U.S. government or a government-sponsored entity, especially when there is a perceived weakness in the mortgage and real estate market sectors. Without an active trading market, mortgage-related securities held in a Fund’s portfolio may be particularly difficult to value because of the complexities involved in assessing the value of the underlying mortgage loans. The average life of a mortgage-backed security is likely to be substantially less than the original maturity of the mortgage pools underlying the securities. Prepayments of principal by mortgagors and mortgage foreclosures will usually result in the return of the greater part of principal invested far in advance of the maturity of the mortgages in the pool or can result in credit losses.

Loans

The Fund may invest in loans, including senior secured loans, unsecured and/or subordinated loans, loan participations and unfunded contracts. These loans are typically made by or issued to corporations primarily to finance acquisitions, refinance existing debt, support organic growth, or pay out dividends, and are typically originated by large banks and are then syndicated out to institutional investors as well as to other banks. Loans typically bear interest at a floating rate, although some loans pay a fixed rate. Floating rate loans have interest rates that reset periodically, typically monthly or quarterly. The interest rates on floating rate loans are generally based on a percentage above the London Inter-Bank Offered Rate, a U.S. bank’s prime or base rate, the overnight federal funds rate or another rate. Due to their lower place in the borrower’s capital structure, unsecured and/or subordinated loans involve a higher degree of overall risk than senior bank loans of the same borrower. Loan participations are loans that are shared by a group of lenders. Unfunded commitments are contractual obligations by lenders (such as the Fund) to loan an amount in the future or that is due to be contractually funded in the future. Assignments may be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning lender.

Loans may have restrictive covenants limiting the ability of a borrower to further encumber its assets. The types of covenants included in loan agreements generally vary depending on market conditions, the creditworthiness of the borrower, the nature of the collateral securing the loan and other factors. Such restrictive covenants normally allow for early intervention and proactive mitigation of credit risk by providing lenders with the ability to (1) intervene and either prevent or restrict actions that may potentially compromise the borrower’s

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ability to repay the loan and/or (2) obtain concessions from the borrower in exchange for waiving or amending a particular covenant. Loans with fewer or weaker restrictive covenants may limit the Fund’s ability to intervene or obtain additional concessions from borrowers.

Senior Loans

The Fund may invest in (i) senior loans made by banks or other financial institutions to foreign corporations, partnerships and other business entities (each a “Borrower” and, collectively, “Borrowers”), (ii) assignments of such interests in senior loans, or (iii) participation interests in senior loans. Senior loans hold the most senior position in the capital structure of a Borrower, are typically secured with specific collateral and have a claim on the assets and/or stock of the Borrower that is senior to that held by subordinated debt holders and stockholders of the Borrower. The capital structure of a Borrower may include senior loans, senior and junior subordinated debt, preferred stock and common stock issued by the Borrower, typically in descending order of seniority with respect to claims on the Borrower’s assets. The proceeds of senior loans primarily are used by Borrowers to finance leveraged buyouts, recapitalizations, mergers, acquisitions, stock repurchases, refinancings, internal growth and for other corporate purposes. A senior loan is typically originated, negotiated and structured by a U.S. or foreign commercial bank, insurance company, finance company or other financial institution (“Agent”) for a lending syndicate of financial institutions which typically includes the Agent (“Lenders”). The Agent typically administers and enforces the senior loans on behalf of the other Lenders in the syndicate. In addition, an institution, typically but not always the Agent, holds any collateral on behalf of the Lenders. The Fund normally will rely primarily on the Agent to collect principal of and interest on a Senior Loan. Also, the Fund usually will rely on the Agent to monitor compliance by the Borrower with the restrictive covenants in a loan agreement.

Senior loans in which the Fund invests generally pay interest at rates that are redetermined periodically at short-term intervals by reference to a base lending rate, plus a premium. Senior loans typically have rates of interest that are redetermined either daily, monthly, quarterly or semi-annually by reference to a base lending rate plus a premium or credit spread. These base lending rates are primarily London Inter-Bank Offered Rate (“LIBOR”) (of any tenor, but typically between one month and six months, and currency), and secondarily the prime rate offered by one or more major U.S. banks (the “Prime Rate”) and the certificate of deposit (“CD”) rate or other base lending rates used by commercial lenders. As adjustable rate loans, the frequency of how often a senior loan resets its interest rate will impact how closely such senior loans track current market interest rates. Senior loans typically have a stated term of between one and eight years. In the experience of Nuveen Asset Management, the average life of senior loans in recent years has been approximately two years because of prepayments.

In July 2017, the Financial Conduct Authority (the authority that regulates LIBOR) announced it intends to stop compelling banks to submit rates for the calculation of LIBOR after 2021. Alternatives to LIBOR are established or in development in most major currencies, including the Secured Overnight Financing Rate (“SOFR”), which is intended to replace U.S. dollar LIBOR. It is unknown if SOFR will become the primary base lending rate for senior loans.

The Fund primarily purchases senior loans by assignment from a participant in the original syndicate of lenders or from subsequent assignees of such interests. The purchaser of an assignment typically succeeds to all the rights and obligations under the loan agreement with the same rights and obligations as the assigning Lender. Assignments may, however, be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning Lender.

The Fund may purchase participation interests in the original syndicate making senior loans. Loan participation interests typically represent direct participations in a loan to a corporate Borrower, and generally are offered by banks or other financial institutions or lending syndicates. The Fund may participate in such

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syndications, or can buy part of a senior loan, becoming a part Lender. When purchasing a participation interest, the Fund assumes the credit risk associated with the corporate Borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. The participation interests in which the Fund may invest may not be rated by any NRSRO. See “Risks—Portfolio Level Risks—Senior Loan Participation Risk” in the Prospectus.

Although senior loans have the most senior position in a Borrower’s capital structure and are often secured by specific collateral, they are typically below investment grade quality and may have below investment grade ratings; these ratings are associated with securities having speculative characteristics. Senior loans rated below investment grade may therefore be regarded as “junk,” despite their senior capital structure position or specific collateral pledged to secure such loans.” The Fund may purchase and retain in its portfolio senior loans where the Borrowers have experienced, or may be perceived to be likely to experience, credit problems, including involvement in or recent emergence from bankruptcy reorganization proceedings or other forms of debt restructuring. Such investments may provide opportunities for enhanced income as well as capital appreciation. At times, in connection with the restructuring of a senior loan either outside of bankruptcy court or in the context of bankruptcy court proceedings, the Fund may determine or be required to accept equity securities or junior debt securities in exchange for all or a portion of a senior loan.

Loan Participations and Assignments

The Fund may purchase participations and/or assignments in commercial loans. Such investments may be secured or unsecured and may pay interest at fixed or floating rates. Loan participations and assignments involve special types of risk, including interest rate risk, liquidity risk and the risks of being a lender.

Loan participations typically represent direct participation, together with other parties, in a loan to a corporate borrower, and generally are offered by banks or other financial institutions or lending syndicates. The Fund may participate in such syndications, or can buy part of a loan, becoming a part lender. When purchasing loan participations, a Fund assumes the credit risk associated with the corporate borrower and may assume the credit risk associated with an interposed bank or other financial intermediary. The loan participations in which the Fund intends to invest may not be rated by any nationally recognized rating service.

Investments in loans through a direct assignment of the financial institution’s interests with respect to the loan may involve additional risks to the Fund. The purchaser of an assignment typically succeeds to all the rights and obligations under the loan agreement with the same rights and obligations as the assigning lender. Assignments may, however, be arranged through private negotiations between potential assignees and potential assignors, and the rights and obligations acquired by the purchaser of an assignment may differ from, and be more limited than, those held by the assigning lender. If a loan is foreclosed, the Fund could become part owner of any collateral, and would bear the costs and liabilities associated with owning and disposing of the collateral. In addition, it is conceivable that under emerging legal theories of lender liability, the Fund could be held liable as co-lender. It is unclear whether loans and other forms of indebtedness offer securities law protections against fraud and misrepresentation. In the absence of definitive regulatory guidance, the Fund relies on Nuveen Asset Management’s research in an attempt to avoid situations where fraud or misrepresentation could adversely affect the Fund.

A loan is often administered by an agent bank acting as agent for all holders. The agent bank administers the terms of the loan, as specified in the loan agreement. In addition, the agent bank is normally responsible for the collection of principal and interest payments from the corporate borrower and the apportionment of these payments to the credit of all institutions which are parties to the loan agreement. Unless, under the terms of the loan, the Fund has direct recourse against the corporate borrower, the Fund may have to rely on the agent bank or other financial intermediary to apply appropriate credit remedies against a corporate borrower. A financial institution’s employment as agent bank might be terminated in the event that it fails to observe a requisite standard of care or becomes insolvent. A successor agent bank would generally be appointed

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to replace the terminated agent bank, and assets held by the agent bank under the loan agreement should remain available to holders of such indebtedness. However, if assets held by the agent bank for the benefit of the Fund were determined to be subject to the claims of the agent bank’s general creditors, the Fund might incur certain costs and delays in realizing payment on a loan or loan participation and could suffer a loss of principal and/or interest. In situations involving other interposed financial institutions (e.g., an insurance company or governmental agency) similar risks may arise.

Second Lien Loans

The Fund may invest in second lien loans and unsecured loans. Such loans are made by public and private corporations and other non-governmental Borrowers for a variety of purposes. As in the case of senior loans, the Fund may purchase interests in second lien loans and unsecured loans through assignments or participations. Second lien loans have similar characteristics as senior loans except that such interests are junior in priority to debt secured with a first lien. Second lien loans are second in priority of payment to one or more senior loans of the related Borrower and are typically secured by a second priority security interest or lien to or on specified collateral securing the Borrower’s obligation under the indebtedness. They typically have similar protections and rights as senior loans. Second lien loans are not (and by their terms cannot become) subordinate in priority of payment to any obligation of the related Borrower other than senior loans of such Borrower. Second lien loans may feature fixed or floating rate interest payments. Because second lien loans are junior to senior loans, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk. In addition, second lien loans of below investment grade quality share many of the risk characteristics of other below investment grade debt instruments.

Unsecured loans generally have lower priority in right of payment compared to holders of secured interests of the Borrower. Unsecured loans are not secured by a security interest or lien to or on specified collateral securing the Borrower’s obligation under the indebtedness. Unsecured loans by their terms may be or may become subordinate in right of payment to other obligations of the Borrower, including senior loans, second lien loans and other interests. Unsecured loans may have fixed or adjustable floating rate interest payments. Because unsecured loans are subordinate to senior loans and other secured debt of the Borrower, they present a greater degree of investment risk but often pay interest at higher rates reflecting this additional risk. Such investments generally are of below investment grade quality. Unsecured loans of below investment grade quality share many of the same risks of other below investment grade debt instruments.

Subordinated Loans

The subordinated loans in which the Fund may invest are typically privately-negotiated investments that rank junior in priority of payment to senior debt, such as senior loans, and are often unsecured. Because subordinated interests may rank lower as to priority of payment than senior loans and second lien loans of the Borrower, they may present a greater degree of investment risk than senior loans and second lien loans but often pay interest at higher rates reflecting this additional risk. Other than their more subordinated status, such investments have many characteristics and risks similar to senior loans and second lien loans discussed above. Subordinated interests of below investment grade quality share risks of other below investment grade debt instruments. Subordinated loans rank senior to common and preferred equity in a Borrower’s capital structure. Subordinated loans may have elements of both debt and equity instruments, offering fixed or adjustable rates of return in the form of interest payments associated with senior debt, while providing lenders an opportunity to participate in the capital appreciation of a Borrower, if any, through an equity interest. This equity interest may take the form of warrants or direct equity investments which will be in conjunction with the subordinated loans. Due to their higher risk profile and often less restrictive covenants as compared to senior loans, subordinated loans generally earn a higher return than secured senior loans. The warrants associated with subordinated loans are typically detachable, which allows lenders the opportunity to receive repayment of their principal on an agreed amortization schedule while retaining their equity interest in the Borrower. Subordinated loans also may include a “put” feature, which permits the holder to sell its equity interest back to the Borrower at a price determined through an agreed formula.

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The Fund may invest in subordinated loans that are primarily unsecured and that provide for relatively high, adjustable rates of interest, providing the Fund with significant current interest income. The subordinated loans in which the Fund may invest may have interest-only payments in the early years, with amortization of principal deferred to the later years of the subordinated loans. In some cases, the Fund may acquire subordinated loans that, by their terms, convert into equity or additional debt instruments or defer payments of interest for the first few years after issuance. Also, in some cases the subordinated loans in which the Fund may invest will be collateralized by a subordinated lien on some or all of the assets of the Borrower.

Preferred Securities

The Fund may invest in all types of preferred securities, including both traditional preferred securities and non-traditional preferred securities. Traditional preferred securities are generally equity securities of the issuer that have priority over the issuer’s common shares as to the payment of dividends (i.e., the issuer cannot pay dividends on its common shares until the dividends on the preferred shares are current) and as to the payout of proceeds of a bankruptcy or other liquidation, but are subordinate to an issuer’s senior debt and junior debt as to both types of payments. Additionally, in a bankruptcy or other liquidation, traditional preferred securities are generally subordinate to an issuer’s trade creditors and other general obligations. Traditional preferred securities may be perpetual or have a term, and typically have a fixed liquidation (or “par”) value.

The term “preferred securities” also includes certain hybrid securities and other types of preferred securities that do not have the traditional features described above. Preferred securities that are hybrid securities often behave similarly to investments in traditional preferred securities and are regarded by market investors as being part of the preferred securities market. Such hybrid securities possess varying combinations of features of both debt and traditional preferred securities and as such they may constitute senior debt, junior debt or preferred shares in an issuer’s capital structure. Thus, they may not be subordinate to a company’s debt securities (as are traditional preferred securities).

Hybrid securities include trust preferred securities. Trust preferred securities are typically issued by corporations, generally in the form of interest-bearing notes with preferred securities characteristics, or by an affiliated business trust of a corporation or other special purpose entity, generally in the form of beneficial interests in subordinated debentures or similarly structured securities. The trust preferred securities market consists of both fixed and floating coupon rate securities that are either perpetual in nature or have stated maturity dates. Trust preferred securities may defer payment of income without triggering an event of default. These securities may have many characteristics of equity due to their subordinated position in an issuer’s capital structure.

Preferred securities may also include certain forms of debt that have many characteristics of preferred shares, and that are regarded by the investment marketplace to be part of the broader preferred securities market. Among these preferred securities are certain exchange-listed debt issues that historically have several attributes, including trading and investment performance characteristics, in common with exchange-listed traditional preferred securities and hybrid securities. Generally, these types of preferred securities are senior debt or junior debt in the capital structure of an issuer.

As a general matter, dividend or interest payments on preferred securities may be cumulative or non-cumulative and may be deferred (in the case of cumulative payments) or skipped (in the case of non-cumulative payments) at the option of the issuer. Generally, preferred security holders have no voting rights with respect to the issuing company, except in some cases voting rights may arise if the issuer fails to pay the preferred share dividends or if a declaration of default occurs and is continuing.

Preferred securities may either trade over-the-counter (“OTC”) or trade on an exchange. Preferred securities can be structured differently for retail and institutional investors, and the Fund may invest in preferred

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securities of either structure. The retail segment is typified by $25 par value exchange-traded securities and the institutional segment is typified by $1,000 par value OTC securities. Both $25 and $1,000 par value securities are often callable at par value, typically at least five years after their original issuance date.

The Fund may invest in preferred securities with different distribution structures. The various coupon structures may be broadly characterized as follows:

Preferred securities may be issued with either a final maturity date, or as a perpetual structure. In certain instances, a final maturity date may be extended and/or the final payment of principal may be deferred at the issuer’s option for a specified time without any adverse consequence to the issuer.

High Yield Instruments

High yield instruments or “junk bonds” that are rated below investment grade involve a greater degree of risk (in particular, a greater risk of default) than, and special risks in addition to, the risks associated with investment grade instruments. Under rating agency guidelines, medium- and lower-rated instruments and comparable unrated instruments will likely have some quality and protective characteristics that are outweighed by large uncertainties or major risk exposures to adverse conditions. Medium- and lower-rated instruments may have poor prospects of ever attaining any real investment standing, may have a current identifiable vulnerability to default or be in default, may be unlikely to have the capacity to pay interest or dividends and repay liquidation preference or principal when due in the event of adverse business, financial or economic conditions, and/or may be likely to be in default or not current in the payment of interest, dividends, liquidation preference or principal. Such instruments are considered speculative with respect to the issuer’s capacity to pay interest or dividends and repay liquidation preference or principal in accordance with the terms of the obligation. Accordingly, it is possible that these types of factors could reduce the value of investments held by the Fund with a commensurate effect on the value of the Common Shares. High yield instruments involve substantial risk of loss and are

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susceptible to default or decline in market value due to real or perceived adverse economic and business developments or competitive industry conditions, as compared to higher-rated instruments. These instruments generally provide higher income than investment grade instruments in an effort to compensate investors for their higher risk of default, which is the issuer’s failure to make required interest, dividends, liquidation preference or principal payments on the securities. High yield instruments issuers include small or relatively new companies lacking the history or capital to merit investment-grade status, former blue chip companies downgraded because of financial problems, companies electing to borrow heavily to finance or avoid a takeover or buyout, and firms with heavy debt loads.

The secondary markets for these instruments are generally not as liquid as the secondary markets for higher rated instruments. The secondary markets for high yield instruments are concentrated in relatively few market makers and the participants in the market are mostly institutional investors, including insurance companies, banks, other financial institutions and mutual funds. In addition, the trading volume for high yield securities is generally lower than that for higher-rated instruments, and the secondary markets could contract under adverse market or economic conditions independent of any specific adverse changes in the condition of a particular issuer. These factors may have an adverse effect on the ability of the Fund to dispose of particular portfolio investments, may adversely affect the Fund’s NAV per share and may limit the ability of the Fund to obtain accurate market quotations for purposes of valuing instruments and calculating NAV. If the Fund is not able to obtain precise or accurate market quotations for a particular instrument, it will become more difficult to value the Fund’s portfolio investments, and a greater degree of judgment may be necessary in making such valuations. Less liquid secondary markets may also affect the ability of the Fund to sell securities at their fair value. If the secondary markets for high yield instruments contract due to adverse economic conditions or for other reasons, certain instruments in the Fund’s portfolio may become illiquid and the proportion of the Fund’s assets invested in illiquid securities may significantly increase.

Prices for high yield instruments may be affected by legislative and regulatory developments. These laws could adversely affect the Fund’s NAV and investment practices, the secondary market for high yield instruments, the financial condition of issuers of these securities and the value of outstanding high yield securities. See “Risks—Portfolio Level Risks—Below Investment Grade Risk” in the Prospectus.

High yield instruments rated in the lower rating categories (Caa1 or lower by Moody’s, CCC+ or lower by S&P or Fitch, or comparably rated by another NRSRO) are subject to very high credit risk. The Fund may not invest in an issuer who is in default on its obligations to pay principal or interest thereon when due or that is in bankruptcy or insolvency proceedings.

Regulation S Securities

The Fund may seek to provide exposure to Regulation S securities that are not freely tradable in the U.S. by investing in the Subsidiary. The Fund may also invest directly in Regulation S securities that are freely tradable in the U.S. Regulation S securities are debt or equity securities of U.S. and foreign issuers offered through private offerings exempt from registration with the SEC pursuant to Regulation S of the 1933 Act. Offerings of Regulation S securities may be conducted outside of the United States, and Regulation S securities may be relatively less liquid as a result of legal or contractual restrictions on resale. Although Regulation S securities may be resold in privately negotiated transactions, the price realized from these sales could be less than the price originally paid by the Fund. Further, companies whose securities are not publicly traded may not be subject to the disclosure of other investor protection requirements that would be applicable if their securities were publicly traded. Accordingly, Regulation S securities may involve a high degree of business and financial risk and may result in substantial losses. See “Risks—Fund Level Risks—Subsidiary Risk” and “—Portfolio Level Risks—Regulation S Securities Risk” in the Prospectus.

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Illiquid Investments

The Fund may invest in illiquid investments (i.e., investments that are not readily marketable), including, but not limited to, restricted investments (investments the disposition of which is restricted under the federal securities laws), investments that may be resold only pursuant to Rule 144A under the 1933 Act that are deemed to be illiquid, and certain repurchase agreements.

Restricted investments may be sold only in privately negotiated transactions or in a public offering with respect to which a registration statement is in effect under the 1933 Act. Where registration is required, the Fund may be obligated to pay all or part of the registration expenses and a considerable period may elapse between the time of the decision to sell and the time the Fund may be permitted to sell an investment under an effective registration statement. If, during such a period, adverse market conditions were to develop, the Fund might obtain a less favorable price than that which prevailed when it decided to sell. To the extent that the Board of Trustees or its delegatee determines that the price of any illiquid investment provided by the pricing service is inappropriate, such investment will be priced at a fair value as determined in good faith by the Board of Trustees or its delegatee.

Hedging Strategies and Other Uses of Derivatives

The Fund may use certain derivative instruments in pursuit of its investment objective. Such instruments include financial futures contracts, forward contracts, swap contracts (including interest rate, total return and credit default swaps), options on financial futures, options on swap contracts or other derivative instruments. The credit default swaps in which the Fund may invest include CDX and single-name CDS. A CDX is a portfolio of credit default swaps with similar characteristics, such as credit default swaps on high-yield bonds. Certain CDX indices are subject to mandatory central clearing and exchange trading, which may reduce counterparty credit risk and increase liquidity compared to other credit default swaps or CDX transactions. Unlike other types of credit default swaps, single-name CDS do not have the benefit of diversification across many issuers. Interest rate swaps involve the exchange by the Fund with a counterparty of their respective commitments to pay or receive interest, such as an exchange of fixed-rate payments for floating rate payments. The Fund will usually enter into interest rate swaps on a net basis; that is, the two payment streams will be netted out in a cash settlement on the payment date or dates specified in the instrument, with the Fund receiving or paying, as the case may be, only the net amount of the two payments. See “—Segregation of Assets” below.

The Fund may periodically engage in hedging transactions, and otherwise use various types of derivative instruments, described below, to reduce risk, to effectively gain particular market exposures, to seek to enhance returns, and to reduce transaction costs, among other reasons. The Fund will value derivative instruments at market/fair value for purposes of calculating compliance with the Fund’s 80% investment policy in investments in fixed-income investments of any type, which are subject to the Impact Criteria or Nuveen’s ESG criteria.

“Hedging” is a term used for various methods of seeking to preserve portfolio capital value by offsetting price changes in one investment through making another investment whose price should tend to move in the opposite direction.

A “derivative” is a financial contract whose value is based on (or “derived” from) a traditional security (such as a stock or a bond), an asset (such as a commodity like gold), or a market index (such as the Bloomberg Barclays Municipal Bond Index). Some forms of derivatives may trade on exchanges, while non-standardized derivatives, which tend to be more specialized and complex, trade in “over-the-counter” or a one-on-one basis. It may be desirable and possible in various market environments to partially hedge the portfolio against fluctuations in market value due to market interest rate or credit quality fluctuations, or instead to gain a desired investment exposure, by entering into various types of derivative transactions, including financial futures and index futures as well as related put and call options on such instruments, structured notes, or interest rate swaps on taxable or tax-exempt securities or indexes (which may be “forward-starting”), credit default swaps, and options on interest rate swaps, among others.

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These transactions present certain risks. In particular, the imperfect correlation between price movements in the futures contract and price movements in the securities being hedged creates the possibility that losses on the hedge by a Fund may be greater than gains in the value of the securities in the Fund’s portfolio. In addition, futures and options markets may not be liquid in all circumstances. As a result, in volatile markets, the Fund may not be able to close out the transaction without incurring losses substantially greater than the initial deposit.

Finally, the potential deposit requirements in futures contracts create an ongoing greater potential financial risk than do options transactions, where the exposure is limited to the cost of the initial premium. Losses due to hedging transactions will reduce yield. Net gains, if any, from hedging and other portfolio transactions will be distributed as taxable distributions to shareholders. Successful implementation of most hedging strategies will generate taxable income.

The Fund will invest in these instruments only in markets believed by Nuveen Asset Management to be active and sufficiently liquid. Successful implementation of most hedging strategies will generate taxable income.

Swap Transactions. The Fund may enter into total return, interest rate and credit default swap agreements and interest rate caps, floors and collars. The Fund may also enter into options on the foregoing types of swap agreements (“swap options”).

The Fund may enter into swap transactions for any purpose consistent with its investment objective and strategies, such as for the purpose of attempting to obtain or preserve a particular return or spread at a lower cost than obtaining a return or spread through purchases and/or sales of instruments in other markets, as a duration management technique, to attempt to reduce risk arising from the ownership of a particular instrument, or to gain exposure to certain sectors or markets in the most economical way possible. Swap agreements are two party contracts entered into primarily by institutional investors for a specified period of time. In a standard swap transaction, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on a particular predetermined asset, reference rate or index. The gross returns to be exchanged or swapped between the parties are generally calculated with respect to a notional amount, e.g., the return on or increase in value of a particular dollar amount invested at a particular interest rate or in a basket of securities representing a particular index. The notional amount of the swap agreement generally is only used as a basis upon which to calculate the obligations that the parties to the swap agreement have agreed to exchange. See “—Segregation of Assets” below.

Some, but not all, swaps may be cleared, in which case a central clearing counterparty stands between each buyer and seller and effectively guarantees performance of each contract, to the extent of its available resources for such purpose. Uncleared swaps have no such protection; each party bears the risk that its direct counterparty will default.

Interest Rate Swaps, Caps, Collars and Floors. Interest rate swaps are bilateral contracts in which each party agrees to make periodic payments to the other party based on different referenced interest rates (e.g., a fixed rate and a floating rate) applied to a specified notional amount. The purchase of an interest rate floor entitles the purchaser, to the extent that a specified index falls below a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling such interest rate floor. The purchase of an interest rate cap entitles the purchaser, to the extent that a specified index rises above a predetermined interest rate, to receive payments of interest on a notional principal amount from the party selling such interest rate cap. Interest rate collars involve selling a cap and purchasing a floor or vice versa to protect the Fund against interest rate movements exceeding given minimum or maximum levels.

Depending on the state of interest rates in general, the Fund’s use of interest rate swaps could enhance or harm the overall performance of Common Shares. To the extent interest rates decline, the value of the interest

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rate swap could decline, and could result in a decline in the NAV of Common Shares. In addition, if the counterparty to an interest rate swap defaults, the Fund would not be able to use the anticipated net receipts under the swap to offset the interest payments on borrowings or the dividend payments on any outstanding preferred shares. Depending on whether the Fund would be entitled to receive net payments from the counterparty on the swap, which in turn would depend on the general state of short-term interest rates at that point in time, such a default could negatively impact the performance of Common Shares. In addition, at the time an interest rate swap transaction reaches its scheduled termination date, there is a risk that the Fund would not be able to obtain a replacement transaction or that the terms of the replacement would not be as favorable as on the expiring transaction. If this occurs, it could have a negative impact on the performance of Common Shares. The Fund could be required to prepay the principal amount of any borrowings. Such redemption or prepayment would likely result in the Fund seeking to terminate early all or a portion of any swap transaction. Early termination of a swap could result in a termination payment by or to the Fund.

Total Return Swaps. In a total return swap, one party agrees to pay the other the “total return” of a defined underlying asset during a specified period, in return for periodic payments based on a fixed or variable interest rate or the total return from other underlying assets. A total return swap may be applied to any underlying asset but is most commonly used with equity indices, single stocks, bonds and defined baskets of loans and mortgages. The Fund might enter into a total return swap involving an underlying index or basket of securities to create exposure to a potentially widely-diversified range of securities in a single trade. An index total return swap can be used by Nuveen Asset Management to assume risk, without the complications of buying the component securities from what may not always be the most liquid of markets.

Credit Default Swaps. A credit default swap is a bilateral contract that enables an investor to buy or sell protection against a defined-issuer credit event. The Fund may enter into credit default swap agreements either as a buyer or a seller. The Fund may buy protection to attempt to mitigate the risk of default or credit quality deterioration in an individual security or a segment of the fixed-income securities market to which it has exposure, or to take a “short” position in individual bonds or market segments which it does not own. The Fund may sell protection in an attempt to gain exposure to the credit quality characteristics of particular bonds or market segments without investing directly in those bonds or market segments.

As the buyer of protection in a credit default swap, the Fund would pay a premium (by means of an upfront payment or a periodic stream of payments over the term of the agreement) in return for the right to deliver a referenced bond or group of bonds to the protection seller and receive the full notional or par value (or other agreed upon value) upon a default (or similar event) by the issuer(s) of the underlying referenced obligation(s). If no default occurs, the protection seller would keep the stream of payments and would have no further obligation to the Fund. Thus, the cost to the Fund would be the premium paid with respect to the agreement. If a credit event occurs, however, the Fund may elect to receive the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. The Fund bears the risk that the protection seller may fail to satisfy its payment obligations. If the Fund sells or writes credit default swaps, the Fund will segregate the full notional amount of the payment obligation under the credit default swap that must be paid upon the occurrence of a credit event. See “—Segregation of Assets” below.

If the Fund is a seller of protection in a credit default swap and no credit event occurs, the Fund would generally receive an up-front payment or a periodic stream of payments over the term of the swap. If a credit event occurs, however, generally the Fund would have to pay the buyer the full notional value of the swap in exchange for an equal face amount of deliverable obligations of the reference entity that may have little or no value. As the protection seller, the Fund effectively adds leverage to its portfolio because, in addition to being subject to investment exposure on its total net assets, the Fund is subject to investment exposure on the notional amount of the swap. Thus, the Fund bears the same risk as it would by buying the reference obligation(s) directly, plus the additional risks related to obtaining investment exposure through a derivative instrument discussed below under “—Risks Associated with Swap Transactions.”

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Swap Options. A swap option is a contract that gives a counterparty the right (but not the obligation), in return for payment of a premium, to enter into a new swap agreement or to shorten, extend, cancel, or otherwise modify an existing swap agreement at some designated future time on specified terms. A cash-settled option on a swap gives the purchaser the right, in return for the premium paid, to receive an amount of cash equal to the value of the underlying swap as of the exercise date. The Fund may write (sell) and purchase put and call swap options. Depending on the terms of the particular option agreement, the Fund generally would incur a greater degree of risk when it writes a swap option than when it purchases a swap option. When the Fund purchases a swap option, it risks losing only the amount of the premium it has paid should it decide to let the option expire unexercised. However, when the Fund writes a swap option, upon exercise of the option the Fund would become obligated according to the terms of the underlying agreement.

Risks Associated with Swap Transactions. The use of swap transactions is a highly specialized activity which involves strategies and risks different from those associated with ordinary portfolio security transactions. See “Risks—Portfolio Level Risks—Risk of Swaps and Swap Options” in the Prospectus.

Futures and Options on Futures. A futures contract is an agreement between two parties to buy and sell a security, index or interest rate (each a “financial instrument”) for a set price on a future date. Certain futures contracts, such as futures contracts relating to individual securities, call for making or taking delivery of the underlying financial instrument. However, these contracts generally are closed out before delivery by entering into an offsetting purchase or sale of a matching futures contract (same exchange, underlying financial instrument, and delivery month). Other futures contracts, such as futures contracts on interest rates and indices, do not call for making or taking delivery of the underlying financial instrument, but rather are agreements pursuant to which two parties agree to take or make delivery of an amount of cash equal to the difference between the value of the financial instrument at the close of the last trading day of the contract and the price at which the contract was originally written. These contracts also may be settled by entering into an offsetting futures contract.

Options on Currencies. The Fund may purchase put and call options on foreign currencies. A foreign currency option provides the option buyer with the right to buy or sell a stated amount of foreign currency at the exercise price at a specified date or during the option period. A call option gives its owner the right, but not the obligation, to buy the currency, while a put option gives its owner the right, but not the obligation, to sell the currency. The option seller (writer) is obligated to fulfill the terms of the option sold if it is exercised. However, either seller or buyer may close its position during the option period in the secondary market for such options at any time prior to expiration.

A foreign currency call option rises in value if the underlying currency appreciates. Conversely, a foreign currency put option rises in value if the underlying currency depreciates. While purchasing a foreign currency option may protect the Fund against an adverse movement in the value of a foreign currency, it would limit the gain which might result from a favorable movement in the value of the currency. For example, if the Fund were holding securities denominated in an appreciating foreign currency and had purchased a foreign currency put to hedge against a decline in the value of the currency, it would not have to exercise its put. In such an event, however, the amount of the Fund’s gain would be offset in part by the premium paid for the option. Similarly, if the Fund entered into a contract to purchase a security denominated in a foreign currency and purchased a foreign currency call to hedge against a rise in the value of the currency between the date of purchase and the settlement date, the Fund would not need to exercise its call if the currency instead depreciated in value. In such a case, the Fund could acquire the amount of foreign currency needed for settlement in the spot market at a lower price than the exercise price of the option.

Forward Currency Contracts and other Foreign Currency Transactions. The Fund may enter into forward currency contracts. A forward currency contract involves an obligation to purchase or sell a specific currency at a future date, which may be any fixed number of days from the date of the contract agreed upon by the parties, at a price set at the time of the contract. These contracts are traded directly between currency traders

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(usually large commercial banks) and their customers. Unlike futures contracts, which are standardized contracts, forward contracts can be specifically drawn to meet the needs of the parties that enter into them. The parties to a forward currency contract may agree to offset or terminate the contract before its maturity, or may hold the contract to maturity and complete the contemplated exchange. Because forward contracts are not traded on an exchange, the Fund is subject to the credit and performance risk of the counterparties to such contracts. The following, among others, are types of currency management strategies involving forward contracts that may be used by the Fund. The Fund also may use currency futures contracts and options thereon, put and call options on foreign currencies and currency swaps for the same purposes.

Position Hedges. The Fund could also use forward contracts to lock in the U.S. dollar value of portfolio positions. This is known as a “position hedge.” When the Fund believes that a foreign currency might suffer a substantial decline against the U.S. dollar, it could enter into a forward contract to sell an amount of that foreign currency approximating the value of some or all of the Fund’s portfolio investments denominated in that foreign currency. When the Fund believes that the U.S. dollar might suffer a substantial decline against a foreign currency, it could enter into a forward contract to buy that foreign currency for a fixed dollar amount. Alternatively, the Fund could enter into a forward contract to sell a different foreign currency for a fixed U.S. dollar amount if the Fund’s portfolio managers believe that the U.S. dollar value of that foreign currency will fall whenever there is a decline in the U.S. dollar value of the currency in which portfolio investments of the Fund are denominated. This is referred to as a “cross hedge.”

Shifting Currency Exposure. The Fund may also enter into forward contracts to shift its investment exposure from one currency into another. This may include shifting exposure from U.S. dollars to foreign currency or from one foreign currency to another foreign currency. This strategy tends to limit exposure to the currency sold, and increase exposure to the currency that is purchased, much as if the Fund had sold an investment denominated in one currency and purchased an equivalent investment denominated in another currency.

Other Investment Companies

The Fund may invest in securities of other open or closed-end investment companies (including ETFs) that invest primarily in fixed-income investments of the types in which the Fund may invest directly. In addition, the Fund may invest a portion of its Managed Assets in pooled investment vehicles (other than investment companies) that invest primarily in fixed-income investments of the types in which the Fund may invest directly. The Fund generally expects that it may invest in other investment companies and/or other pooled investment vehicles either during periods when it has large amounts of uninvested cash, such as the period shortly after the Fund receives the proceeds of an offering of its Common Shares or borrowing or during periods when there is a shortage of attractive fixed-income investments available in the market. The Fund may invest in investment companies that are advised by Nuveen Fund Advisors, Nuveen Asset Management or their respective affiliates to the extent permitted by applicable law and/or pursuant to exemptive relief from the SEC. As a stockholder in an investment company, the Fund will bear its ratable share of that investment company’s expenses and would remain subject to payment of the Fund’s management, advisory and administrative fees with respect to assets so invested. Common Shareholders would therefore be subject to duplicative expenses to the extent the Fund invests in other investment companies. Moreover, the Fund will consider the investments of underlying investment companies when determining compliance with its own concentration policy, to the extent the Fund has sufficient information about such investments.

Nuveen Fund Advisors will take expenses into account when evaluating the investment merits of an investment in an investment company relative to available fixed-income investments. In addition, the securities of other investment companies may also be leveraged and will therefore be subject to the same leverage risks described herein. As described in the Fund’s Prospectus, the NAV and market value of leveraged shares will be more volatile and the yield to Common Shareholders will tend to fluctuate more than the yield generated by unleveraged shares.

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Repurchase Agreements

As temporary investments, the Fund may invest in repurchase agreements. A repurchase agreement is a contractual agreement whereby the seller of securities (U.S. government securities or municipal securities) agrees to repurchase the same security at a specified price on a future date agreed upon by the parties. The agreed-upon repurchase price determines the yield during the Fund’s holding period. Repurchase agreements are considered to be loans collateralized by the underlying security that is the subject of the repurchase contract. Income generated from transactions in repurchase agreements will be taxable. The Fund will only enter into repurchase agreements with registered securities dealers or domestic banks that, in the opinion of Nuveen Asset Management, present minimal credit risk. The risk to the Fund is limited to the ability of the issuer to pay the agreed-upon repurchase price on the delivery date; however, although the value of the underlying collateral at the time the transaction is entered into always equals or exceeds the agreed-upon repurchase price, if the value of the collateral declines there is a risk of loss of both principal and interest. In the event of default, the collateral may be sold but the Fund might incur a loss if the value of the collateral declines, and might incur disposition costs or experience delays in connection with liquidating the collateral. In addition, if bankruptcy proceedings are commenced with respect to the seller of the security, realization upon the collateral by the Fund may be delayed or limited. Nuveen Asset Management will monitor the value of the collateral at the time the transaction is entered into and at all times subsequent during the term of the repurchase agreement in an effort to determine that such value always equals or exceeds the agreed-upon repurchase price. In the event the value of the collateral declines below the repurchase price, Nuveen Asset Management will demand additional collateral from the issuer to increase the value of the collateral to at least that of the repurchase price, including interest.

Dollar Rolls

The Fund may enter into mortgage “dollar rolls” in which the Fund sells mortgage-backed securities and simultaneously contracts with the same counterparty to repurchase similar (same type, coupon and maturity) but not identical securities on a specified future date. During the period between the sale and repurchase (the “roll period”), the Fund forgoes principal and interest paid on the mortgage-backed securities. However, the Fund would benefit to the extent of any difference between the price received for the securities sold and the lower forward price for the future purchase (often referred to as the “drop”) plus any fee income received. Unless such benefits exceed the income, capital appreciation and gain or loss due to mortgage prepayments that would have been realized on the securities sold as part of the mortgage dollar roll, the investment performance of the Fund will be less than what the performance would have been without the use of the mortgage dollar roll. The Fund will segregate until the settlement date cash or liquid securities in an amount equal to the forward purchase price.

Short-Term Taxable Fixed Income Securities

For temporary defensive purposes or to keep cash on hand fully invested, the Fund may invest up to 100% of its net assets in cash equivalents and short-term taxable fixed-income securities, although the Fund intends to invest in taxable short-term investments only in the event that suitable tax-exempt short-term investments are not available at reasonable prices and yields. Short-term taxable fixed income investments are defined to include, without limitation, the following:

(1) U.S. government securities, including bills, notes and bonds differing as to maturity and rates of interest that are either issued or guaranteed by the U.S. Treasury or by U.S. government agencies or instrumentalities. U.S. government agency securities include securities issued by (a) the Federal Housing Administration, Farmers Home Administration, Export-Import Bank of the United States, Small Business Administration, and the Government National Mortgage Association, whose securities are supported by the full faith and credit of the United States; (b) the Federal Home Loan Banks, Federal Intermediate Credit Banks, and the Tennessee Valley Authority, whose securities are supported by the right of the agency to borrow from the U.S. Treasury; (c) FNMA, whose securities are supported by the discretionary authority of the U.S. government to purchase certain obligations of the agency or instrumentality; and (d) the Student

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Loan Marketing Association, whose securities are supported only by its credit. While the U.S. government provides financial support to such U.S. government-sponsored agencies or instrumentalities, no assurance can be given that it always will do so since it is not so obligated by law. The U.S. government, its agencies, and instrumentalities do not guarantee the market value of their securities. Consequently, the value of such securities may fluctuate.

(2) Certificates of Deposit issued against funds deposited in a bank or a savings and loan association. Such certificates are for a definite period of time, earn a specified rate of return, and are normally negotiable. The issuer of a certificate of deposit agrees to pay the amount deposited plus interest to the bearer of the certificate on the date specified thereon. Under current Federal Deposit Insurance Company regulations, the maximum insurance payable as to any one certificate of deposit is $250,000; therefore, certificates of deposit purchased by the Fund may not be fully insured.

(3) Repurchase agreements, which involve purchases of debt securities. At the time the Fund purchases securities pursuant to a repurchase agreement, it simultaneously agrees to resell and redeliver such securities to the seller, who also simultaneously agrees to buy back the securities at a fixed price and time. This assures a predetermined yield for the Fund during its holding period, since the resale price is always greater than the purchase price and reflects an agreed-upon market rate. Such actions afford an opportunity for the Fund to invest temporarily available cash. The Fund may enter into repurchase agreements only with respect to obligations of the U.S. government, its agencies or instrumentalities; certificates of deposit; or bankers’ acceptances in which the Fund may invest. Repurchase agreements may be considered loans to the seller, collateralized by the underlying securities. The risk to the Fund is limited to the ability of the seller to pay the agreed-upon sum on the repurchase date; in the event of default, the repurchase agreement provides that the Fund is entitled to sell the underlying collateral. If the value of the collateral declines after the agreement is entered into, and if the seller defaults under a repurchase agreement when the value of the underlying collateral is less than the repurchase price, the Fund could incur a loss of both principal and interest. Nuveen Asset Management monitors the value of the collateral at the time the action is entered into and at all times during the term of the repurchase agreement. Nuveen Asset Management does so in an effort to determine that the value of the collateral always equals or exceeds the agreed-upon repurchase price to be paid to the Fund. If the seller were to be subject to a federal bankruptcy proceeding, the ability of the Fund to liquidate the collateral could be delayed or impaired because of certain provisions of the bankruptcy laws.

(4) Commercial paper, which consists of short-term unsecured promissory notes, including variable rate master demand notes issued by corporations to finance their current operations. Master demand notes are direct lending arrangements between the Fund and a corporation. There is no secondary market for such notes. However, they are redeemable by the Fund at any time. Nuveen Asset Management will consider the financial condition of the corporation (e.g., earning power, cash flow, and other liquidity measures) and will continuously monitor the corporation’s ability to meet all of its financial obligations, because the Fund’s liquidity might be impaired if the corporation were unable to pay principal and interest on demand. Investments in commercial paper will be limited to commercial paper rated in the highest categories by a major rating agency and which mature within one year of the date of purchase or carry a variable or floating rate of interest.

Segregation of Assets

As a closed-end investment company registered with the SEC, the Fund is subject to the federal securities laws, including the 1940 Act, the rules thereunder, and various interpretive positions of the SEC and its staff. Under current laws, rules and positions, the Fund must maintain liquid assets (often referred to as “asset segregation”), or engage in other SEC staff-approved measures, to “cover” open positions with respect to certain kinds of derivative instruments and financial agreements (such as reverse repurchase agreements). Generally, the Fund will maintain an amount of liquid assets with its custodian in an amount at least equal to the current amount of its obligations, including the value of unpaid past and future payment obligations, under derivative instruments

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and financial agreements, in accordance with SEC guidance. However, the Fund also may “cover” certain obligations by other means such as through ownership of the underlying security or financial instrument. The Fund also may enter into offsetting transactions with respect to certain obligations consistent with existing guidance from the SEC and its staff so that its combined position, coupled with any liquid assets maintained by its custodian, equals its net outstanding obligation in related derivatives or financial agreements. In the case of long positions in financial futures contracts that are not contractually required to cash settle, the Fund may set aside or earmark liquid assets or enter into offsetting positions equal to such contracts’ full notional value, less any margin on deposit for liquid assets, while the positions are open. In the case of short positions in financial futures contracts that are not contractually required to cash settle, the Fund may set aside or earmark liquid assets or enter into offsetting positions equal to such contracts’ current market value, less any margin on deposit for liquid assets, while the positions are open. With respect to financial futures contracts that are contractually required to cash settle, however, the Fund is permitted to set aside liquid assets or enter into an offsetting position in an amount equal to the Fund’s daily marked-to-market net obligations (i.e., the Fund’s daily net liability) under the contracts, if any, rather than such contracts’ full notional value. If the Fund writes credit default swaps, it will segregate the full notional amount of the payment obligation under the credit default swap that must be paid upon the occurrence of a credit event. The Fund may invest in inverse floating rate securities issued by special purpose trusts. With respect to such investments, the Fund will segregate or earmark assets in an amount equal to at least 100% of the face amount of the floating rate securities issued by such trusts.

The SEC recently adopted new Rule 18f-4 under the 1940 Act, which imposes limits on the amount of derivatives a fund can enter into and replaces the asset segregation framework previously used by funds to comply with Section 18 of the 1940 Act, among other requirements. The Fund will comply with the new rule’s requirements on or before the SEC’s compliance date in 2022. See “Risks—Portfolio Level Risks—Derivatives Risk” in the Prospectus.

The Fund reserves the right to modify its policies in the future to comply with any changes in the positions from time to time articulated by the SEC or its staff.

To the extent the Fund uses its assets to cover its obligations as required by the 1940 Act, the rules thereunder, and applicable positions of the SEC and its staff, such assets may not be used for other operational purposes. Nuveen Fund Advisors and/or Nuveen Asset Management will monitor the Fund’s use of derivatives and will take action as necessary for the purpose of complying with the asset segregation policy stated above. Such actions may include the sale of the Fund’s portfolio investments.

Portfolio Trading and Turnover

Portfolio trading may be undertaken to accomplish the investment objective of the Fund in relation to actual and anticipated movements in interest rates. In addition, an investment may be sold and another of comparable quality purchased at approximately the same time to take advantage of what Nuveen Asset Management believes to be a temporary price disparity between the two investments. Temporary price disparities between two comparable investments may result from supply and demand imbalances where, for example, a temporary oversupply of certain investments may cause a temporarily low price for such investments, as compared with other investments of like quality and characteristics.

An investment also may be sold when Nuveen Asset Management anticipates a change in the price of such investment, Nuveen Asset Management believes the price of an investment has reached or is near a realistic maximum, or there are other investments that Nuveen Asset Management believes are more attractive given the Fund’s investment objective. The Fund also may engage to a limited extent in short-term trading consistent with its investment objective. Investments may be sold in anticipation of a market decline or purchased in anticipation of a market rise and later sold, but the Fund will not engage in trading solely to recognize a gain. Subject to the foregoing, the Fund will attempt to achieve its investment objective by prudent selection of investments with a view to holding them for investment. While there can be no assurance thereof, the Fund anticipates that its annual portfolio turnover rate generally will not exceed 75% under normal circumstances. However, the rate of turnover

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will not be a limiting factor when the Fund deems it desirable to sell or purchase investments. Therefore, depending on market conditions, the annual portfolio turnover rate of the Fund may exceed 75% in particular years. A higher portfolio turnover rate results in correspondingly greater brokerage commissions and other transactional expenses that are borne by the Fund. High portfolio turnover may result in the realization of net short-term capital gains by the Fund which, when distributed to shareholders, will be taxable as ordinary income.

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MANAGEMENT OF THE FUND

TRUSTEES AND OFFICERS

The management of the Fund, including general supervision of the duties performed for the Fund under the investment management agreement with Nuveen Fund Advisors (the “Investment Management Agreement”), is the responsibility of the Board of Trustees of the Fund. The number of trustees of the Fund is ten, none of whom are an “interested person” (as the term “interested person” is defined in the 1940 Act) (referred to herein as “independent trustees”). None of the independent trustees has ever been a director, trustee or employee of, or consultant to, Nuveen, Nuveen Fund Advisors, Nuveen Asset Management, or their affiliates. The Board of Trustees is divided into three classes, Class I, Class II and Class III, the Class I trustees serving until the 2022 annual meeting, the Class II trustees serving until the 2023 annual meeting and the Class III trustees serving until the 2024 annual meeting, in each case until their respective successors are elected and qualified, as described below. Currently, William C. Hunter, Judith M. Stockdale, Carole E. Stone and Margaret L. Wolff are slated in Class I, John K. Nelson, Terence J. Toth and Robert L. Young are slated in Class II and Jack B. Evans, Albin F. Moschner and Matthew Thornton III are slated in Class III. If the Fund issues preferred shares, two of the Fund’s trustees would be elected by the holders of such preferred shares, voting separately as a class. The remaining trustees of the Fund would be elected by holders of common shares and preferred shares, voting together as a class. In the event that the Fund fails to pay dividends on outstanding preferred shares for two years, holders of preferred shares would be entitled to elect a majority of trustees of the Fund. The officers of the Fund serve indefinite terms until their successor has been duly elected and qualified, their death or their resignation or removal. The names, business addresses and years of birth of the trustees and officers of the Fund, their principal occupations and other affiliations during the past five years, the number of portfolios each trustee oversees and other directorships they hold are set forth below. Except as noted in the table below, as of March 8, 2021 the trustees of the Fund are directors or trustees, as the case may be, of 68 Nuveen-sponsored open-end mutual funds (the “Nuveen Mutual Funds”); and 63 Nuveen-sponsored closed-end funds and 13 Nuveen-sponsored exchange-traded funds (collectively with the Nuveen Mutual Funds and the Nuveen-sponsored closed-end funds, the “Nuveen Funds”).

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Organization and Management of Wholly-Owned Subsidiary

The Fund may seek to provide exposure to Regulation S securities that are not freely tradable in the U.S. by investing in the Subsidiary, a wholly owned subsidiary of the Fund. The Subsidiary is advised by Nuveen Asset Management, which complies with the provisions of Section 15 of the 1940 Act relating to investment advisory contracts as an investment adviser to the Fund under Section 2(a)(20) of the 1940 Act. The Subsidiary invests primarily in Regulation S securities. The Fund and the Subsidiary each complies with the provisions of the 1940 Act regarding capital structure. In addition, the Subsidiary complies with the provisions of Section 17 of the 1940 Act relating to affiliated transactions and custody of portfolio investments. The Fund’s custodian also serves as the custodian to the Subsidiary.

The Subsidiary is a company organized under the laws of the Cayman Islands, whose registered office is located at the offices of Walkers Corporate Limited, 190 Elgin Avenue, George Town, Grand Cayman KY1-9008, Cayman Islands. The Subsidiary’s affairs are overseen by a board of directors, which is comprised of [•] and [•].

Nuveen Asset Management provides investment management and administrative services to the Subsidiary. Nuveen Asset Management will provide investment management and other services to the Subsidiary. Nuveen Asset Management will not receive separate compensation from the Subsidiary for providing it with investment management or administrative services. However, the Fund will pay Nuveen Asset Management based on the Fund’s assets, including the assets invested in the Subsidiary. The Subsidiary will also enter into separate contracts for the provision of custody and audit services with the same or with affiliates of the same service providers that provide those services to the Fund.

The Subsidiary is managed pursuant to compliance policies and procedures that are the same, in all material respects, as the policies and procedures adopted by the Fund. As a result, Nuveen Asset Management, in managing the Subsidiary’s portfolio, is subject to the same investment policies and restrictions that apply to the management of the Fund, and, in particular, to the requirements relating to portfolio leverage, liquidity, brokerage, and the timing and method of the valuation of the Subsidiary’s portfolio investments and shares of the Subsidiary. These policies and restrictions are described elsewhere in detail in the Prospectus and this SAI. The Fund and the Subsidiary test for compliance with certain investment restrictions on a consolidated basis, except that with respect to its investments in certain securities that may involve leverage, the Subsidiary complies with asset segregation requirements to the same extent as the Fund.

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Board Leadership Structure and Risk Oversight

The Board of Directors or the Board of Trustees (as the case may be, each is referred to hereafter as the “Board”) oversees the operations and management of the Nuveen Funds (the “Funds”), including the duties performed for each Fund by its investment adviser. The Board has adopted a unitary board structure. A unitary board consists of one group of trustees who serve on the board of every fund in the complex. In adopting a unitary board structure, the trustees seek to provide effective governance through establishing a board, the overall composition of which, will, as a body, possess the appropriate skills, diversity (including, among other things, gender, race and ethnicity), independence and experience to oversee the Funds’ business. With this overall framework in mind, when the Board, through its Nominating and Governance Committee discussed below, seeks nominees for the Board, the trustees consider, not only the candidate’s particular background, skills and experience, among other things, but also whether such background, skills and experience enhance the Board’s diversity and at the same time complement the Board given its current composition and the mix of skills and experiences of the incumbent trustees. The Nominating and Governance Committee believes that the Board generally benefits from diversity of background (including, among other things, gender, race and ethnicity), skills, experience and views among its members, and considers this a factor in evaluating the composition of the Board, but has not adopted any specific policy on diversity or any particular definition of diversity.

The Board believes the unitary board structure enhances good and effective governance, particularly given the nature of the structure of the investment company complex. Funds in the same complex generally are served by the same service providers and personnel and are governed by the same regulatory scheme which raises common issues that must be addressed by the trustees across the fund complex (such as compliance, valuation, liquidity, brokerage, trade allocation or risk management). The Board believes it is more efficient to have a single board review and oversee common policies and procedures which increases the Board’s knowledge and expertise withrespect to the many aspects of fund operations that are complex-wide in nature. The unitary structure also enhances the Board’s influence and oversight over the investment adviser and other service providers.

In an effort to enhance the independence of the Board, the Board also has a chair that is an independent trustee. The Board recognizes that a chair can perform an important role in setting the agenda for the Board, establishing the boardroom culture, establishing a point person on behalf of the Board for fund management, and reinforcing the Board’s focus on the long-term interests of shareholders. The Board recognizes that a chair may be able to better perform these functions without any conflicts of interests arising from a position with fund management. Accordingly, the trustees have elected Terence J. Toth as the independent chair of the Board. Pursuant to the Funds’ By-laws, the Chair shall perform all duties incident to the office of Chair of the Board and such other duties as from time to time may be assigned to him or her by the trustees or the By-laws.

Although the Board has direct responsibility over various matters (such as advisory contracts, underwriting contracts and Fund performance), the Board also exercises certain of its oversight responsibilities through several committees that it has established and which report back to the full Board. The Board believes that a committee structure is an effective means to permit trustees to focus on particular operations or issues affecting the Funds, including risk oversight. More specifically, with respect to risk oversight, the Board has delegated matters relating to valuation and compliance to certain committees (as summarized below) as well as certain aspects of investment risk. In addition, the Board believes that the periodic rotation of trustees among the different committees allows the trustees to gain additional and different perspectives of the Fund’s operations. The Board has established six standing committees: the Executive Committee, the Dividend Committee, the Closed-End Funds Committee, the Audit Committee, the Compliance, Risk Management and Regulatory Oversight Committee and the Nominating and Governance Committee. The Board also may from time to time create ad hoc committees to focus on particular issues as the need arises. The membership and functions of the standing committees are summarized below.

The Executive Committee, which meets between regular meetings of the Board, is authorized to exercise all of the powers of the Board. Mr. Toth, Chair, Mr. Moschner and Ms. Wolff serve as the current members of the Executive Committee of the Board.

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The Board has an Audit Committee, in accordance with Section 3(a) (58)(A) of the Securities Exchange Act of 1934 (“1934 Act”), that is composed of Independent Trustees who are also “independent” as that term is defined in the listing standards of the NYSE pertaining to closed-end funds. The Audit Committee assists the Board in the oversight and monitoring of the accounting and reporting policies, processes and practices of the Funds, and the audits of the financial statements of the Funds; the quality and integrity of the financial statements of the Funds; the Funds’ compliance with legal and regulatory requirements relating to the Funds’ financial statements; the independent auditors’ qualifications, performance and independence; and the pricing procedures of the Funds and the internal valuation group of Nuveen. It is the responsibility of the Audit Committee to select, evaluate and replace any independent auditors (subject only to Board and, if applicable, shareholder ratification) and to determine their compensation. The Audit Committee is also responsible for, among other things, overseeing the valuation of securities comprising the Funds’ portfolios. Subject to the Board’s general supervision of such actions, the Audit Committee addresses any valuation issues, oversees the Funds’ pricing procedures and actions taken by Nuveen’s internal valuation group which provides regular reports to the committee, reviews any issues relating to the valuation of the Funds’ securities brought to its attention and considers the risks to the Funds in assessing the possible resolutions to these matters. The Audit Committee may also consider any financial risk exposures for the Funds in conjunction with performing its functions.

To fulfill its oversight duties, the Audit Committee receives annual and semi-annual reports and has regular meetings with the external auditors for the Funds and the internal audit group at Nuveen. The Audit Committee also may review in a general manner the processes the Board or other Board committees have in place with respect to risk assessment and risk management as well as compliance with legal and regulatory matters relating to the Funds’ financial statements. The committee operates under a written charter adopted and approved by the Board. Members of the Audit Committee shall be independent (as set forth in the charter) and free of any relationship that, in the opinion of the trustees, would interfere with their exercise of independent judgment as an Audit Committee member. The members of the Audit Committee are Ms. Stone, Chair, Mr. Evans, Dr. Hunter, Mr. Nelson, Mr. Moschner and Ms. Stockdale, each of whom is an independent trustee of the Funds. A copy of the Charter is available at www.nuveen.com/fundgovernance.

The Nominating and Governance Committee is responsible for seeking, identifying and recommending to the Board qualified candidates for election or appointment to the Board. In addition, the Nominating and Governance Committee oversees matters of corporate governance, including the evaluation of Board performance and processes, the assignment and rotation of committee members, and the establishment of corporate governance guidelines and procedures, to the extent necessary or desirable, and matters related thereto. Although the unitary and committee structure has been developed over the years and the Nominating and Governance Committee believes the structure has provided efficient and effective governance, the committee recognizes that as demands on the Board evolve over time (such as through an increase in the number of funds overseen or an increase in the complexity of the issues raised), the committee must continue to evaluate the Board and committee structures and their processes and modify the foregoing as may be necessary or appropriate to continue to provide effective governance. Accordingly, the Nominating and Governance Committee has a separate meeting each year to, among other things, review the Board and committee structures, their performance and functions, and recommend any modifications thereto or alternative structures or processes that would enhance the Board’s governance over the Funds’ business.

In addition, the Nominating and Governance Committee, among other things, makes recommendations concerning the continuing education of trustees; monitors performance of legal counsel and other service providers; establishes and monitors a process by which security holders are be able to communicate in writing with members of the Board; and periodically reviews and makes recommendations about any appropriate changes to trustee compensation. In the event of a vacancy on the Board, the Nominating and Governance Committee receives suggestions from various sources, including shareholders, as to suitable candidates. Suggestions should be sent in writing to William Siffermann, Managing Director of Fund Board Relations, Nuveen, LLC, 333 West Wacker Drive, Chicago, IL 60606. The Nominating and Governance Committee sets appropriate standards and requirements for nominations for new trustees and reserves the right to interview any

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and all candidates and to make the final selection of any new trustees. In considering a candidate’s qualifications, each candidate must meet certain basic requirements, including relevant skills and experience, time availability (including the time requirements for due diligence site visits to internal and external sub- advisors and service providers) and, if qualifying as an independent trustee candidate, independence from the Advisor, sub-advisors, underwriters or other service providers, including any affiliates of these entities. These skill and experience requirements may vary depending on the current composition of the Board, since the goal is to ensure an appropriate range of skills, diversity and experience, in the aggregate. Accordingly, the particular factors considered and weight given to these factors will depend on the composition of the Board and the skills and backgrounds of the incumbent trustees at the time of consideration of the nominees. All candidates, however, must meet high expectations of personal integrity, independence, governance experience and professional competence. All candidates must be willing to be critical within the Board and with management and yet maintain a collegial and collaborative manner toward other Board members. The committee operates under a written charter adopted and approved by the Board. This committee is composed of the independent trustees of the Funds. Accordingly, the members of the Nominating and Governance Committee are Mr. Toth, Chair, Mr. Evans, Dr. Hunter, Mr. Moschner, Mr. Nelson, Ms. Stockdale, Ms. Stone, Mr. Thornton, Ms. Wolff and Mr. Young.

The Dividend Committee is authorized to declare distributions on the Funds’ shares including, but not limited to, regular and special dividends, capital gains and ordinary income distributions. The members of the Dividend Committee are Mr. Young, Chair, Dr. Hunter, Mr. Moschner and Ms. Wolff.

The Compliance, Risk Management and Regulatory Oversight Committee (the “Compliance Committee”) is responsible for the oversight of compliance issues, risk management and other regulatory matters affecting the Funds that are not otherwise the jurisdiction of the other committees. The Board has adopted and periodically reviews policies and procedures designed to address the Funds’ compliance and risk matters. As part of its duties, the Compliance Committee reviews the policies and procedures relating to compliance matters and recommends modifications thereto as necessary or appropriate to the full Board; develops new policies and procedures as new regulatory matters affecting the Funds arise from time to time; evaluates or considers any comments or reports from examinations from regulatory authorities and responses thereto; and performs any special reviews, investigations or other oversight responsibilities relating to risk management, compliance and/or regulatory matters as requested by the Board.

In addition, the Compliance Committee is responsible for risk oversight, including, but not limited to, the oversight of risks related to investments and operations. Such risks include, among other things, exposures to particular issuers, market sectors, or types of securities; risks related to product structure elements, such as leverage; and techniques that may be used to address those risks, such as hedging and swaps. In assessing issues brought to the committee’s attention or in reviewing a particular policy, procedure, investment technique or strategy, the Compliance Committee evaluates the risks to the Funds in adopting a particular approach or resolution compared to the anticipated benefits to the Funds and their shareholders.

In fulfilling its obligations, the Compliance Committee meets on a quarterly basis, and at least once a year in person. The Compliance Committee receives written and oral reports from the Funds’ Chief Compliance Officer (“CCO”) and meets privately with the CCO at each of its quarterly meetings. The CCO also provides an annual report to the full Board regarding the operations of the Funds’ and other service providers’ compliance programs as well as any recommendations for modifications thereto. The Compliance Committee also receives reports from the investment services group of Nuveen regarding various investment risks. Notwithstanding the foregoing, the full Board also participates in discussions with management regarding certain matters relating to investment risk, such as the use of leverage and hedging. The investment services group therefore also reports to the full Board at its quarterly meetings regarding, among other things, Fund performance and the various drivers of such performance. Accordingly, the Board directly and/or in conjunction with the Compliance Committee oversees matters relating to investment risks. Matters not addressed at the committee level are addressed directly by the full Board. The committee operates under a written charter adopted and approved by the Board. The

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members of the Compliance Committee are Ms. Wolff, Chair, Mr. Nelson, Mr. Thornton, Mr. Toth and Mr. Young.

The Closed-End Funds Committee is responsible for assisting the Board in the oversight and monitoring of the Nuveen Funds that are registered as closed-end management investment companies (“Closed- End Funds”). The committee may review and evaluate matters related to the formation and the initial presentation to the Board of any new Closed-End Fund and may review and evaluate any matters relating to any existing Closed-End Fund.

The Closed-End Funds Committee receives updates on the secondary closed-end fund market and evaluates the premiums and discounts of the Nuveen closed-end funds, including the Fund, at each quarterly meeting. The Closed-End Funds Committee reviews, among other things, the premium and discount trends in the broader closed-end fund market, by asset category and by closed-end fund; the historical total return performance data for the Nuveen closed-end funds, including the Fund, based on net asset value and price over various periods; the volatility trends in the market; the use of leverage by the Nuveen closed-end funds, including the Fund; the distribution data of the Nuveen closed-end funds, including the Fund, and as compared to peer averages; and a summary of common share issuances, if any, and share repurchases, if any, during the applicable quarter by the Nuveen closed-end funds, including the Fund. The Closed-End Funds Committee regularly engages in more in-depth discussions of premiums and discounts of the Nuveen closed-end funds. Additionally, the Closed-End Funds Committee members participate in workshops to explore, among other things, actions to address discounts of the Nuveen closed-end funds, potential share repurchases and available leverage strategies and their use. The committee operates under a written charter adopted and approved by the Board. The members of the Closed-End Funds Committee are Mr. Evans, Chair, Dr. Hunter, Mr. Toth, Ms. Wolff and Mr. Young.

Board Diversification and Trustee Qualifications. In determining that a particular trustee was qualified to serve on the Board, the Board considered each trustee’s background, skills, experience and other attributes in light of the composition of the Board with no particular factor controlling. The Board believes that trustees need to have the ability to critically review, evaluate, question and discuss information provided to them, and to interact effectively with Fund management, service providers and counsel, in order to exercise effective business judgment in the performance of their duties, and the Board believes each trustee satisfies this standard. An effective trustee may achieve this ability through his or her educational background; business, professional training or practice; public service or academic positions; experience from service as a board member or executive of investment funds, public companies or significant private or not-for-profit entities or other organizations; and/or other life experiences. Accordingly, set forth below is a summary of the experiences, qualifications, attributes and skills that led to the conclusion, as of the date of this document, that each trustee should serve in that capacity. References to the experiences, qualifications, attributes and skills of trustees are pursuant to requirements of the SEC, do not constitute holding out the Board or any trustee as having any special expertise or experience and shall not impose any greater responsibility or liability on any such person or on the Board by reason thereof.

Jack B. Evans

Mr. Evans has served as Chairman (since 2019), formerly, President from 1996-2019 of the Hall-Perrine Foundation, a private philanthropic corporation. Mr. Evans was formerly President and Chief Operating Officer (1972-1995) of the SCI Financial Group, Inc., a regional financial services firm headquartered in Cedar Rapids, Iowa. Formerly, he was a member of the Board of the Federal Reserve Bank of Chicago from 1998 to 2003 as well as a Director of Alliant Energy from 2000 to 2004 and President Pro Tem of the Board of Regents for the State of Iowa University System from 2000 to 2004. Mr. Evans is Chairman of the Board (since 2009) of United Fire Group, a Life Trustee of Coe College and the Iowa College Foundation and formerly served as a Director and Public Member of the American Board of Orthopaedic Surgery form 2015 to 2020 and served on the Board of The Gazette Company form 1996 to 2015. He has a Bachelor of Arts from Coe College and an M.B.A. from the University of Iowa. Mr. Evans joined the Board in 1999.

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William C. Hunter

Dr. Hunter became Dean Emeritus of the Henry B. Tippie College of Business at the University of Iowa in 2012, after having served as Dean of the College since July 2006. He had been Dean and Distinguished Professor of Finance at the University of Connecticut School of Business from 2003 to 2006. From 1995 to 2003, he was the Senior Vice President and Director of Research at the Federal Reserve Bank of Chicago. He has held faculty positions at Emory University, Atlanta University, the University of Georgia and Northwestern University. He has consulted with numerous foreign central banks and official agencies in Europe, Asia, Central America and South America. He has been a Director of Wellmark, Inc. since 2009. He is a past Director (2005- 2015) and a past President (2010-2014) of Beta Gamma Sigma, Inc., The International Business Honor Society, and a past Director (2004-2018) of the Xerox Corporation. Dr. Hunter received his PhD (1978) and MBA (1970) from Northwestern University and his BS from Hampton University (1970). Dr. Hunter joined the Board in 2004.

Albin F. Moschner

Mr. Moschner is a consultant in the wireless industry and, in July 2012, founded Northcroft Partners, LLC, a management consulting firm that provides operational, management and governance solutions. Prior to founding Northcroft Partners, LLC, Mr. Moschner held various positions at Leap Wireless International, Inc., a provider of wireless services, where he was as a consultant from February 2011 to July 2012, Chief Operating Officer from July 2008 to February 2011, and Chief Marketing Officer from August 2004 to June 2008. Before he joined Leap Wireless International, Inc., Mr. Moschner was President of the Verizon Card Services division of Verizon Communications, Inc. from 2000 to 2003, and President of One Point Services at One Point Communications from 1999 to 2000. Mr. Moschner also served at Zenith Electronics Corporation as Director, President and Chief Executive Officer from 1995 to 1996, and as Director, President and Chief Operating Officer from 1994 to 1995. Mr. Moschner was formerly Chairman (2019) and a member of the Board of Directors (2012- 2019) of USA Technologies, Inc. and, from 1996 until 2016, he was a member of the Board of Directors of Wintrust Financial Corporation. In addition, he is emeritus (since 2018) of the Advisory Boards of the Kellogg School of Management (1995-2018) and the Archdiocese of Chicago Financial Council (2012-2018). Mr. Moschner received a Bachelor of Engineering degree in Electrical Engineering from The City College of New York in 1974 and a Master of Science degree in Electrical Engineering from Syracuse University in 1979. Mr. Moschner joined the Board in 2016.

John K. Nelson

Mr. Nelson is on the Board of Directors of Core12, LLC. (since 2008), a private firm which develops branding, marketing, and communications strategies for clients. Mr. Nelson has extensive experience in global banking and markets, having served in several senior executive positions with ABN AMRO Holdings N.V. and its affiliated entities and predecessors, including LaSalle Bank Corporation from 1996 to 2008, ultimately serving as Chief Executive Officer of ABN AMRO N.V. North America. During his tenure at the bank, he also served as Global Head of its Financial Markets Division, which encompassed the bank’s Currency, Commodity, Fixed Income, Emerging Markets, and Derivatives businesses. He was a member of the Foreign Exchange Committee of the Federal Reserve Bank of the United States and during his tenure with ABN AMRO served as the bank’s representative on various committees of The Bank of Canada, European Central Bank, and The Bank of England. Mr. Nelson previously served as a senior, external advisor to the financial services practice of Deloitte Consulting LLP. (2012-2104). At Fordham University, he served as a director of The President’s Council (2010-2019) and previously served as a director of The Curran Center for Catholic American Studies (2009-2018). He served as a trustee and Chairman of The Board of Trustees of Marian University (2011-2013). Mr. Nelson is a graduate of Fordham University and holds a BA in Economics (1984) and an MBA in Finance (1991). Mr. Nelson joined the Board in 2013.

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Judith M. Stockdale

Ms. Stockdale retired in 2012 as Executive Director of the Gaylord and Dorothy Donnelley Foundation, a private foundation working in land conservation and artistic vitality in the Chicago region and the Low Country of South Carolina. She is currently a board member of the Land Trust Alliance (since 2013). Her previous positions include Executive Director of the Great Lakes Protection Fund, Executive Director of Openlands, and Senior Staff Associate at the Chicago Community Trust. She has served on the Advisory Council of the National Zoological Park, the Governor’s Science Advisory Council (Illinois) and the Nancy Ryerson Ranney Leadership Grants Program. She has been a member of the Boards of Brushwood Center, Forefront f/k/a Donors Forum and the U.S. Endowment for Forestry and Communities. Ms. Stockdale, a native of the United Kingdom, has a Bachelor of Science degree in geography from the University of Durham (UK) and a Master of Forest Science degree from Yale University. Ms. Stockdale joined the Board in 1997.

Carole E. Stone

Ms. Stone recently retired from the Board of Directors of Cboe Global Markets, Inc. (2010-May 2020) (formerly, CBOE Holdings, Inc.) having served from 2010-2020. She previously served on the Boards of the Chicago Board Options Exchange and C2 Options Exchange, Incorporated. Ms. Stone retired from the New York State Division of the Budget in 2004, having served as its Director for nearly five years and as Deputy Director from 1995 through 1999. She has also served as the Chair of the New York Racing Association Oversight Board, as a Commissioner on the New York State Commission on Public Authority Reform and as a member of the Boards of Directors of several New York State public authorities. Ms. Stone has a Bachelor of Arts from Skidmore College in Business Administration. Ms. Stone joined the Board in 2007.

Matthew Thornton III

Mr. Thornton has over 40 years of broad leadership and operating experience from his career with FedEx Corporation (“FedEx”), which, through its portfolio of companies, provides transportation, e-commerce and business services. In November 2019, Mr. Thornton retired as Executive Vice President and Chief Operating Officer of FedEx Freight Corporation (FedEx Freight), a subsidiary of FedEx, where, from May 2018 until his retirement, he had been responsible for day-to-day operations, strategic guidance, modernization of freight operations and delivering innovative customer solutions. From September 2006 to May 2018, Mr. Thornton served as Senior Vice President, U.S. Operations at Federal Express Corporation (FedEx Express), a subsidiary of FedEx. Prior to September 2006, Mr. Thornton held a range of positions of increasing responsibility with FedEx, including various management positions. In addition, Mr. Thornton currently (since 2014) serves on the Board of Directors of The Sherwin-Williams Company, where he is a member of the Audit Committee and the Nominating and Corporate Governance Committee, and the Board of Directors of Crown Castle International (since 2020), where he is a member of the Strategy Committee and the Compensation Committee. Formerly (2012-2018), he was a member of the Board of Directors of Safe Kids Worldwide^®, a non-profit organization dedicated to the prevention of childhood injuries. Mr. Thornton is a member (since 2014) of the Executive Leadership Council (ELC), the nation’s premier organization of global black senior executives. He is also a member of the National Association of Corporate Directors (NACD). Mr. Thornton has been recognized by Black Enterprise on its 2017 list of the Most Powerful Executives in Corporate America and by Ebony on its 2016 Power 100 list of the world’s most influential and inspiring African Americans. Mr. Thornton received a B.B.A. degree from the University of Memphis in 1980 and an M.B.A. from the University of Tennessee in 2001. Mr. Thornton joined the Board in 2020.

Terence J. Toth

Mr. Toth, the Nuveen Funds’ Independent Chair, was a Co-Founding Partner of Promus Capital (2008-2017). From 2008 to 2013, he was a Director, Legal & General Investment Management America, Inc. From 2004 to 2007, he was Chief Executive Officer and President of Northern Trust Global Investments, and

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Executive Vice President of Quantitative Management & Securities Lending from 2000 to 2004. He also formerly served on the Board of the Northern Trust Mutual Funds. He joined Northern Trust in 1994 after serving as Managing Director and Head of Global Securities Lending at Bankers Trust (1986 to 1994) and Head of Government Trading and Cash Collateral Investment at Northern Trust from 1982 to 1986. He currently serves on the Boards of Quality Control Corporation since 2012 and Catalyst Schools of Chicago since 2008. He is on the Mather Foundation Board since 2012 and is Chair of its Investment Committee and previously served as a Director of LogicMark LLC (2012-2016) and of Fulcrum IT Service LLC (2010-2019). Mr. Toth graduated with a Bachelor of Science degree from the University of Illinois, and received his MBA from New York University. In 2005, he graduated from the CEO Perspectives Program at Northwestern University. Mr. Toth joined the Board in 2008.

Margaret L. Wolff

Ms. Wolff retired from Skadden, Arps, Slate, Meagher & Flom LLP in 2014 after more than 30 years of providing client service in the Mergers & Acquisitions Group. During her legal career, Ms. Wolff devoted significant time to advising boards and senior management on U.S. and international corporate, securities, regulatory and strategic matters, including governance, shareholder, fiduciary, operational and management issues. Ms. Wolff has been a trustee of New York-Presbyterian Hospital since 2005 and, since 2004, she has served as a trustee of The John A. Hartford Foundation (a philanthropy dedicated to improving the care of older adults) where she currently is the Chair. From 2013 to 2017, she was a Board member of Travelers Insurance Company of Canada and The Dominion of Canada General Insurance Company (each of which is a part of Travelers Canada, the Canadian operation of The Travelers Companies, Inc.). From 2005 to 2015, she was a trustee of Mt. Holyoke College and served as Vice Chair of the Board from 2011 to 2015. Ms. Wolff received her Bachelor of Arts from Mt. Holyoke College and her Juris Doctor from Case Western Reserve University School of Law. Ms. Wolff joined the Board in 2016.

Robert L. Young

Mr. Young has more than 30 years of experience in the investment management industry. From 1997 to 2017, he held various positions with J.P. Morgan Investment Management Inc. (“J.P. Morgan Investment”) and its affiliates (collectively, “J.P. Morgan”). Most recently, he served as Chief Operating Officer and Director of J.P. Morgan Investment (from 2010 to 2016) and as President and Principal Executive Officer of the J.P. Morgan Funds (from 2013 to 2016). As Chief Operating Officer of J.P. Morgan Investment, Mr. Young led service, administration and business platform support activities for J.P. Morgan’s domestic retail mutual fund and institutional commingled and separate account businesses, and co-led these activities for J.P. Morgan’s global retail and institutional investment management businesses. As President of the J.P. Morgan Funds, Mr. Young interacted with various service providers to these funds, facilitated the relationship between such funds and their boards, and was directly involved in establishing board agendas, addressing regulatory matters, and establishing policies and procedures. Before joining J.P. Morgan, Mr. Young, a former Certified Public Accountant (CPA), was a Senior Manager (Audit) with Deloitte & Touche LLP (formerly, Touche Ross LLP), where he was employed from 1985 to 1996. During his tenure there, he actively participated in creating, and ultimately led, the firm’s midwestern mutual fund practice. Mr. Young holds a Bachelor of Business Administration degree in Accounting from the University of Dayton and, from 2008 to 2011, he served on the Investment Committee of its Board of Trustees. Mr. Young joined the Board in 2017.

Independent Chairman

The trustees have elected Terence J. Toth as the independent Chairman of the Board of Trustees. Specific responsibilities of the Chairman include (a) presiding at all meetings of the Board of Trustees and of the shareholders; (b) seeing that all orders and resolutions of the trustees are carried into effect; and (c) maintaining records of and, whenever necessary, certifying all proceedings of the trustees and the shareholders.

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Class I trustees will serve until the 2022 annual meeting of shareholders; Class II trustees will serve until the 2023 annual meeting of shareholders; and Class III trustees will serve until the 2024 annual meeting of shareholders. As each trustee’s term expires, shareholders will be asked to elect trustees and such trustees shall be elected for a term expiring at the time of the third succeeding annual meeting subsequent to their election or thereafter in each case when their respective successors are duly elected and qualified. These provisions could delay for up to two years the replacement of a majority of the Board of Trustees. See “Certain Provisions in the Declaration of Trust and By-Laws” in the Prospectus.

As of February 28, 2021 no trustee who is not an interested person of the Fund or any of his or her immediate family members owns beneficially or of record, any security issued by Nuveen Fund Advisors, Nuveen Asset Management, Nuveen or any person (other than a registered investment company) directly or indirectly controlling, controlled by or under common control with Nuveen Fund Advisors, Nuveen Asset Management or Nuveen.

As of February 28, 2021 the officers and trustees of the Fund, in the aggregate, own none of the Fund’s equity securities.

Compensation

The following table shows, for each independent trustee, (1) the estimated aggregate compensation to be paid by the Fund projected during the Fund’s fiscal year after commencement of operation, (2) the amount of total compensation paid by the Fund that has been deferred and (3) the total compensation paid to each trustee by the Nuveen Funds during the calendar year ended December 31, 2020. The Fund does not have a retirement or pension plan. The officers and trustees affiliated with Nuveen serve without any compensation from the Fund.

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The Fund has a deferred compensation plan (the “Plan”) that permits any trustee who is not an “interested person” of the Fund to elect to defer receipt of all or a portion of his or her compensation as a trustee. The deferred compensation of a participating trustee is credited to a book reserve account of the Fund when the compensation would otherwise have been paid to the trustee. The value of the trustee’s deferral account at any time is equal to the value that the account would have had if contributions to the account had been invested and reinvested in shares of one or more of the eligible Nuveen Funds. At the time for commencing distributions from a trustee’s deferral account, the trustee may elect to receive distributions in a lump sum or over a period of five years. The Fund will not be liable for any other fund’s obligations to make distributions under the Plan.