As filed with the Securities and Exchange Commission on July 29, 2022

Securities Act File No. 333-231722

Investment Company Act File No. 811-23445

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-2

(Check appropriate box or boxes)

Nuveen Enhanced High Yield Municipal Bond 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.

☒ Check box if any securities being registered on this Form will be 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.

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

☐ when declared effective pursuant to Section 8(c) of the Securities Act.

If appropriate, check the following box:

☐ This [post-effective] amendment designates a new effective date for a previously filed [post-effective amendment] [registration statement].

☐ This Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, and the Securities Act registration statement number of the earlier effective registration statement for the same offering is:

☐ This Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, and the Securities Act registration statement number of the earlier effective registration statement for the same offering is:

☐ This Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, and the Securities Act registration statement number of the earlier effective registration statement for the same offering is:

Check each box that appropriately characterizes the Registrant:

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

☒ Interval Fund (Registered Closed-End Fund or a Business Development Company that makes periodic repurchase offers under Rule 23c-3 under the Investment Company Act).

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

The Fund. Nuveen Enhanced High Yield Municipal Bond Fund (the “Fund”) is a non-diversified, closed-end management investment company that continuously offers its common shares of beneficial interest (the “Common Shares”) and is operated as an “interval fund.” The Fund currently offers three classes of Common Shares: Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The Fund may offer additional classes of Common Shares in the future.

Investment Objectives. The Fund’s primary investment objective is to provide a high level of current income exempt from regular U.S. federal income tax. Capital appreciation is a secondary investment objective when consistent with the Fund’s primary investment objective. However, there can be no assurance that the Fund will achieve either of its investment objectives or that the Fund’s investment strategies will be successful.

Fund Strategies and Policies. The Fund seeks to achieve its investment objectives by investing, under normal circumstances, at least 80% of its Assets (as defined on page 4) in municipal securities and other related investments, the income from which is exempt from regular U.S. federal income tax.

The Fund’s portfolio is actively managed to identify and capitalize on high yield municipal securities (as described below) that offer favorable risk/reward potential. The Fund also uses leverage. These investment strategies should be considered high risk relative to strategies employed by investment grade municipal bond mutual funds.

The Fund invests significantly in lower-quality long-term municipal bonds. Under normal circumstances, the Fund will invest at least 75% of its net assets in low- to medium-quality municipal securities that, at the time of investment, are rated BBB/Baa or lower or are unrated but judged by the subadviser to be of comparable quality. Low- to medium-quality municipal securities include below investment grade securities (or “junk bonds”). Below investment grade securities (securities rated BB+/Ba1 or lower) are regarded as having predominately speculative characteristics with

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The date of this prospectus is July 29, 2022.

Prospectus

Fund Strategies.

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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.

As an “interval fund”, the Fund will provide Common Shareholders periodic liquidity. See “Repurchase Offers” below. The Fund’s investment adviser believes the Fund’s “interval fund” structure may provide greater income and total return potential as compared to a traditional high yield municipal mutual fund. Without the potential disruption of outflows from daily liquidity, the subadviser may capture illiquidity premiums often unavailable to individual retail investors through more liquid investment vehicles such as mutual funds. In addition, the Fund’s investment adviser believes that the Fund’s interval structure allows more flexibility to assume larger position sizes; enables a greater allocation to less-illiquid municipal securities; and provides the Fund the opportunity to realize the maximum long-term value of certain special situations within the municipal market such as work-outs (a privately negotiated, mutual agreement between the Fund and the issuer or another party with respect to securities in default or involved in bankruptcy or insolvency proceedings).

Leverage. The Fund uses leverage to achieve its investment objectives. The Fund may use leverage to the extent permitted by the Investment Company Act of 1940. The Fund may obtain leverage through either investments in inverse floating rate securities, which represent leveraged investments in underlying bonds, borrowings, reverse repurchase agreements (effectively a borrowing) and the issuance of preferred shares of beneficial interest, or a combination of thereof. In addition, the Fund may use derivatives that have the economic effect of leverage. The use of leverage creates special risks for holders of Common Shares (“Common Shareholders”). See “Leverage,” “Special Risk Considerations—Fund Level Risks—Leverage Risk,” “—Portfolio Level Risks—Inverse Floating Rate Securities Risk” and “—Reverse Repurchase Agreement Risk.” There is no assurance that the Fund’s use of leverage will work as planned or achieve its goals.

Repurchase Offers. In order to provide liquidity to Common Shareholders, the Fund has adopted a fundamental investment policy to make quarterly offers to repurchase between 5% and 25% of its outstanding Common Shares at net asset value, reduced by any applicable repurchase fee. Subject to applicable law and approval of the Fund’s Board of Trustees, for each quarterly repurchase offer, the Fund currently expects to offer to repurchase 7.5% of the Fund’s outstanding Common Shares at net asset value. If the value of Common Shares tendered for repurchase exceeds the value the Fund intended to repurchase, the Fund may determine to repurchase less than the full number of Common Shares tendered. In such event, Common Shareholders will have their Common Shares repurchased on a pro rata basis, and tendering shareholders will not have all of their tendered Common Shares repurchased by the Fund. The repurchase pricing date will occur no later than the 14th day after the repurchase request deadline (or the next business day, if the 14th day is not a business day). The Fund expects to distribute payment to Common Shareholders between one and three (3) business days after the repurchase pricing date and will distribute such payment no later than seven (7) calendar days after such date. The repurchase request deadline will generally be the same date as the repurchase pricing date.See “Periodic Repurchase Offers” and “Risks—Fund Level Risks—Repurchase Offers Risk.”

Fund Distributions. The Fund intends to declare dividends daily, and pay such dividends monthly, usually on the first business day of the month. The Fund also intends to declare and pay any capital gains once a year at year end. See “Distributions.”

Purchasing Class I Common Shares. Only certain investors are eligible to purchase Class I Common Shares. See “Plan of Distribution—Share Classes.” The minimum initial investment for Class I Common Shares is $100,000 per account, except that the minimum investment amount may be modified for certain eligible investors. See “Plan of Distribution” in the Prospectus and “Purchase of Class I Common Shares by Eligible Investors” in the Statement of Additional Information for details. There is no minimum subsequent investment amount. See “Plan of Distribution—Purchasing Shares.”

Purchasing Class A1 Common Shares. The minimum initial investment for Class A1 Common Shares is $2,500 per account, except that the minimum investment may be modified for certain financial firms that submit orders on behalf of their customers, the Trustees and certain employees and their extended family members of Nuveen, LLC and its affiliates. See “Plan of Distribution” in the Prospectus for details. The minimum subsequent investment amount for Class A1 Common Shares is $100. See “Plan of Distribution—Purchasing Shares.” An investor will pay a sales load of up to 2.50% on amounts invested. If you pay the maximum aggregate 2.50% for sales load, you must experience a total return on your net investment of 2.50% in order to recover these expenses.

(notes continued on following page)

Prospectus

Purchasing Class A2 Common Shares. The minimum initial investment for Class A2 Common Shares is $2,500 per account, except that the minimum investment may be modified for certain financial firms that submit orders on behalf of their customers, the Trustees and certain employees and their extended family members of Nuveen, LLC and its affiliates. See “Plan of Distribution” in the Prospectus for details. The minimum subsequent investment amount for Class A2 Common Shares is $100. See “Plan of Distribution—Purchasing Shares.”

This Prospectus offers three classes of Common Shares of the Fund, designated as Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares, which are continuously offered through Nuveen Securities, LLC (“Nuveen Securities”) on a best efforts basis. No escrow arrangements have been established in connection with the continuous offering. It is estimated that the Fund will be able to invest all or substantially all of the net proceeds according to its investment objectives and policies within approximately three months after receipt of the proceeds, subject to market conditions. During the continuous offering, Common Shares will be sold at their offering price, which is net asset value per Common Share for each class of Common Shares plus sales charges, where applicable. While neither the Fund nor Nuveen Securities impose an initial sales charge on Class I Common Shares or Class A2 Common Shares, if you buy Class I Common Shares or Class A2 Common Shares through certain financial firms, they may directly charge you transaction or other fees in such amount as they may determine. Please consult your financial firm for additional information. Class A1 Common Shares charge a maximum sales load of 2.50% of the offering price, which may be reduced for purchases of $100,000 and over. See “Summary of Fund Expenses” and “Plan of Distribution.”

Investor Suitability.

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 quality securities (or junk bonds) and special situations municipal securities 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 39 of this prospectus. Certain of these risks are summarized in “Prospectus Summary—Special Risk Considerations” beginning on page 8 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.

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 July 29, 2022, 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, the table of contents of which is on page 84 of this prospectus, annual and semi-annual reports to shareholders, when available, and other information about the Fund, and make shareholder inquiries by calling (833) 688-3368 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 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 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.

NOT FDIC OR GOVERNMENT INSURED     MAY LOSE VALUE     NO BANK GUARANTEE

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Summary of Fund Expenses

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Financial Highlights

The following Financial Highlights table is intended to help a prospective investor understand the Fund’s financial performance for the periods shown. Certain information reflects financial results for a single Common Share of the Fund. The total returns in the table represent the rate an investor would have earned or lost on an investment in Common Shares of the Fund (assuming reinvestment of all dividends). The Fund’s annual financial statements and financial highlights as of and for the fiscal period June 30, 2021 (commencement of operations) through March 31, 2022 have been audited by PricewaterhouseCoopers LLP (“PwC”), an independent registered public accounting firm. PwC has not reviewed or examined any records, transactions or events after the date of such reports. A copy of the Annual Report may be obtained from www.sec.gov or by visiting www.nuveen.com. The information contained in, or that can be accessed through, the Fund’s website is not part of this Prospectus, except to the extent specifically incorporated by reference in the SAI. Past results are not indicative of future performance.

The following per share data and ratios have been derived from information provided in the financial statements.

Selected data for a share outstanding throughout each period:

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Financial Highlights

The Fund

The Fund is a non-diversified, closed-end management investment company registered under the Investment Company Act of 1940, as amended (the “1940 Act”) that continuously offers its Common Shares and is operated as an interval fund. The Fund currently offers three classes of Common Shares: Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The Fund may offer additional classes of Common Shares in the future pursuant to exemptive relief from the Securities and Exchange Commission (“SEC”). The Fund was organized as a Massachusetts business trust on May 22, 2019, pursuant to the Fund’s Declaration of Trust (the “Declaration of Trust”), which is governed by the laws of The Commonwealth of Massachusetts. On February 27, 2020, and March 1, 2021, the Fund filed an amendment to the Declaration of Trust to change the name of the Fund. On June 8, 2021 the Fund filed an amendment to the Declaration of Trust to amend Section 2 of Article IX of the Declaration of Trust. On March 2, 2021 the Fund filed an Amended and Restated Establishment and Designation of Classes to designate the Class A Common Shares. On July 8, 2022 the Fund filed a Second Amended and Restated Establishment and Designation of Classes to (1) change the name of the Class A Common Shares to “Class A1 Common Shares” and (2) designate the Class A2 Common Shares. The Fund commenced operations on June 30, 2021. 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 Fund invests the proceeds of the continuous offering of Common Shares on an ongoing basis in accordance with its investment objectives and policies as stated below. It is currently anticipated that the Fund will be able to invest all or substantially all of the net proceeds according to its investment objectives and policies within approximately three months after receipt of the proceeds, depending on the amount and timing of proceeds available to the Fund as well as the availability of investments consistent with the Fund’s investment objectives and policies, and except to the extent proceeds are held in cash to pay dividends or expenses, satisfy repurchase offers or for temporary defensive purposes. Pending such investment, it is anticipated that the proceeds of an offering will be invested in low- to medium-quality municipal securities, although the Fund may, if necessary, also invest in other municipal securities.

The Fund/Use of Proceeds

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The Fund’s Investments

Investment Objectives

The Fund’s primary investment objective is to provide a high level of current income exempt from regular U.S. federal income tax. Capital appreciation is a secondary investment objective when consistent with the Fund’s primary investment objective. However, there can be no assurance that the Fund will achieve either of its investment objectives or that the Fund’s investment strategies will be successful. See “Risks.” The Fund’s investment objectives may be changed by the Board of Trustees upon 60 days’ prior written notice to shareholders.

Fund Strategies

The Fund’s portfolio is actively managed to identify and capitalize on high yield municipal securities. Nuveen Asset Management, LLC, the Fund’s subadviser (“Nuveen Asset Management”), uses a research-driven approach that seeks attractive income exempt from regular U.S. federal income taxes by identifying and capitalizing on opportunities in high yield municipal securities. The Fund invests in below investment grade bonds that Nuveen Asset Management believes may offer the potential for attractive total returns, even after taking into account the significant risk (relative to higher quality securities) that these securities typically present.

The Fund may also invest in special situations municipal securities that Nuveen Asset Management believes may offer the potential for attractive total returns, even after taking into account the significant risk (relative to higher quality securities) that these securities typically present. Special situations municipal securities are municipal securities: (i) of issuers that are facing distressed financial or operating circumstances, are in default of its obligations or in an active work-out, or are in bankruptcy; or (ii) that present uncertainties or complex features that could render them undesirable for certain investors. Special situations municipal securities may offer illiquidity and complexity premiums, which may create significant investment opportunity for the Fund.

The Fund may also use certain hedging techniques to reduce exposure of the portfolio to adverse business or market conditions. See “—Other Policies” and “Risks—Portfolio Level Risks—Hedging Risk” below.

As an “interval fund”, the Fund will provide Common Shareholders periodic liquidity. See “Periodic Repurchase Offers” below. Nuveen Fund Advisors, LLC, the Fund’s investment adviser (“Nuveen Fund Advisors”) believes the Fund’s “interval fund” structure may provide greater income and total return potential as compared to a traditional high yield municipal mutual fund. Without the potential disruption of outflows from daily liquidity, Nuveen Asset Management may capture illiquidity premiums often unavailable to individual retail investors through more liquid investment vehicles such as mutual funds. In addition, Nuveen Fund Advisors believes that the Fund’s interval structure allows more flexibility to assume larger position sizes; enables a greater allocation to less-illiquid municipal securities; and provides the Fund the opportunity to realize the maximum long-term value of certain special situations within the municipal market such as work-outs (a privately negotiated, mutual agreement between the Fund and the issuer or another party with respect to securities in default or involved in bankruptcy or insolvency proceedings).

Portfolio Contents

The Fund invests its assets in a portfolio of municipal securities. Municipal securities include municipal bonds, notes, securities issued to finance and refinance public projects, certificates of participation, variable rate demand obligations, lease obligations, municipal notes, pre-refunded municipal bonds, private activity bonds, securities issued by tender option bond trusts, including inverse floating rate securities, and other forms of municipal bonds and securities, and other related instruments that create exposure to municipal bonds, notes and securities that provide for the payment of interest income that is exempt from regular U.S. federal income tax.

Municipal Securities. Municipal securities are debt obligations generally issued by states, cities and local authorities and certain possessions and territories of the United States (such as Puerto Rico and Guam) to finance or refinance public purpose projects such as roads, schools, and water supply systems. Municipal securities may also be issued to finance and refinance privately owned facilities, such as housing, medical and educational construction, or for privately owned transportation, electric utility and pollution control projects deemed to serve a public purpose. Municipal securities may be issued on a long-term basis to provide long-term 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 securities may also be issued to finance projects on a short-term interim basis, anticipating repayment with the proceeds of long-term debt. Municipal securities may be issued and purchased 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 or inverse floating rate securities; or acquired through investments in pooled vehicles, partnerships or other investment companies. Inverse floating rate securities are securities

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The Fund’s Investments

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 may increase the leverage of the Fund.

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

Most municipal securities generate income that is tax exempt from regular U.S. federal income tax. The Fund may also invest in municipal securities that are subject to regular federal income tax. Although municipal bonds issued to finance activities with a broad public purpose are generally exempt from federal income tax, taxable municipal bonds are issued to finance activities with less significant benefits to the public, such as the construction of sports facilities, and as such the interest paid to holders of such bonds is taxable as ordinary income. Many taxable municipal bonds offer yields comparable to those of other taxable bonds, such as corporate and agency bonds. Taxable municipal bonds may be rated investment-grade or below investment-grade and pay interest based on fixed or floating rate coupons. Maturities may range from long-term to short-term.

The Fund may also invest in “AMT Bonds”, which are municipal securities that pay interest that is taxable under the federal alternative minimum tax applicable to noncorporate taxpayers.

Special Situations Municipal Securities. The Fund may invest in special situations municipal securities. Special situations municipal securities are municipal securities:

The portion of the Fund’s assets invested in special situations municipal securities may fluctuate significantly over time according to the availability of attractive special situations municipal securities opportunities. See “Risks—Portfolio Level Risks—Special Situations Municipal Securities Risk” below.

Corporate Debt Securities. The Fund may also invest in corporate debt securities, including 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.

U.S. Treasury Securities. The Fund may also invest in U.S. Government direct obligations. U.S. Government direct obligation are issued by the United States Treasury and include bills, notes and bonds. Treasury bills are issued with maturities of up to one year. They are issued in bearer form, are sold on a discount basis and are payable at par value at maturity. Treasury notes are longer-term interest-bearing obligations with original maturities of one to seven years. Treasury bonds are longer-term interest-bearing obligations with original maturities from five to thirty years.

See “Portfolio Composition and Other Information” for additional information on the types of securities in which the Fund may invest.

Derivatives. The Fund also may invest in certain derivative instruments in pursuit of its investment objectives. Such instruments include financial futures contracts, swap contracts (including interest rate and credit default swaps), options on financial futures, options on swap contracts, or other derivative instruments. Nuveen Asset Management may use derivative instruments to attempt to hedge some of the risk of the Fund’s investments or as a substitute for a position in the underlying asset. See “Portfolio Composition and Other Information—Derivatives.”

The Fund’s Investments

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Investment Policies

Under normal circumstances the Fund will invest subject to the following policies:

The foregoing policies 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 securities.

“Assets” means net assets of the Fund plus the amount of any borrowings for investment purposes. “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.

Low to medium quality municipal securities include below investment grade securities (or “junk bonds”). Below investment grade securities are generally securities rated BB+/Ba1 or lower at the time of investment and 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. For purposes of the investment limitations in this prospectus, a security’s rating is determined using the lowest rating of Moody’s, S&P and Fitch if all three NRSROs rate the security. 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 a security is not rated by any NRSRO, the rating determined by Nuveen Asset Management to be of comparable quality is used. The portion of the Fund’s assets invested in low to medium quality municipal securities may vary over time, and may fluctuate significantly over time, over the minimum of 75% described above.

While investments in special situations municipal securities may be a component of the Fund’s investment strategy in pursuit of its investment objectives, the ability of the Fund to invest in special situation municipal securities may be limited by the availability of attractive opportunities in the market. The portion of the Fund’s assets that are invested in such securities, if any, may fluctuate significantly over time up to the 25% limit described above.

Nuveen Asset Management may determine that it is in the best interest of shareholders to pursue a work-out arrangement (i.e., a privately negotiated, mutual agreement between the Fund and the issuer or another party) with respect to a defaulted security, 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.

The Fund may enter into certain derivative transactions as a hedging technique to protect against potential adverse changes in the market value of portfolio securities. The Fund also may use derivatives to attempt to protect the NAV of the Fund, to facilitate the sale of certain portfolio securities, to manage the Fund’s effective interest rate exposure, 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 securities.

For temporary defensive purposes, during periods of high cash inflows or outflows, or during a Repurchase Offer Period, the Fund may depart from its principal investment strategies and invest up to 100% of its Managed Assets in

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The Fund’s Investments

cash equivalents, U.S. government securities and other high-quality short-term debt securities. During such periods, the Fund may not be able to achieve its investment objectives. The Fund may adopt a defensive strategy when Nuveen Asset Management believes the instruments in which the Fund normally invests have elevated risks due to political or economic factors, in the event that unanticipated legal or regulatory developments interfere with implementation of the Fund’s principal investment strategies, and in other extraordinary circumstances.

The Fund’s investment policy to invest at least 80% of its Assets in municipal securities and other related investments, the income from which is exempt from regular U.S. federal income tax and certain other investment restrictions identified in the SAI as such are considered fundamental. See also “Investment Restrictions” in the SAI. 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 approval of a changes to the Fund’s fundamental policies, 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. 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 Common Shareholders.

The Fund’s Investments

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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.”

Municipal Securities

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 securities may also be issued 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 bonds, private activity bonds, tender option bonds and other forms of municipal bonds and securities.

The municipal securities 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 regular U.S. federal income tax, although the interest may be subject to the federal alternative minimum tax. Municipal securities issued by Puerto Rico involve specific risks. See “Risks—Portfolio Level Risks—Puerto Rico Municipal Securities Market Risk” below.

The yields on municipal securities 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.

The Fund may invest in “tobacco settlement bonds.” Tobacco settlement bonds are municipal securities that are secured or payable solely from the collateralization of the proceeds from class action or other litigation against the tobacco industry. Investments in tobacco settlement bonds are subject to risks. See “Risks—Portfolio Level Risks—Tobacco Settlement Bond Risk” below.

Municipal Leases and Certificates of Participation. The Fund also may purchase municipal securities 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 U.S. federal income tax, as well as 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.

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Portfolio Composition and Other Information

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.

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. The 2017 Tax Cuts and Jobs Act repealed the exclusion from gross income for interest on pre-refunded municipal securities effective for such bonds issued after December 31, 2017.

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. Under current law, a significant portion of the private activity bond market is comprised of AMT Bonds. The Fund’s distributions of its interest income from private activity bonds may subject certain investors to the federal alternative minimum tax. See “Tax Matters.”

Inverse Floating Rate Securities. The Fund may invest in inverse floating rate securities. Inverse floating rate securities 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, commonly referred to as a “tender option bond trust” (“TOB trust”), that holds municipal bonds. The TOB trust typically sells two classes of beneficial interests or securities: floating rate securities (sometimes referred to as short-term floaters or tender option bonds (“TOBs”)), and inverse floating rate securities (sometimes referred to as inverse floaters). Both classes of beneficial interests are represented by certificates or receipts. The floating rate securities have first priority on the cash flow from the municipal bonds held by the TOB trust. In this structure, the floating rate security holders have the option, at periodic short-term intervals, to tender their securities to the trust for purchase and to receive the face value thereof plus accrued interest. The obligation of the trust to repurchase tendered securities is supported by a remarketing agent and by a liquidity provider. As consideration for providing this support, the remarketing agent and the liquidity provider receive 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 trust is not obligated to purchase tendered short-term floaters in the event of certain defaults with respect to the underlying municipal bonds or a significant downgrade in the credit rating assigned to the bond issuer.

As the holder of an inverse floating rate investment, the Fund receives the residual cash flow from the TOB trust. Because the holder of the short-term floater is generally assured liquidity at the face value of the security plus accrued interest, the holder of the inverse floater assumes the interest rate cash flow risk and the market value risk associated with the municipal bond deposited into the TOB 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

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the short-term floaters to the value of the inverse floaters that are issued by the TOB trust. All voting rights and decisions to be made with respect to any other rights relating to the municipal bonds held in the TOB trust are passed through, pro rata, to the holders of the short-term floaters and to the Fund as the holder of the associated inverse floaters.

Because any increases in the interest rate on the short-term floaters issued by a TOB trust would reduce the residual interest paid on the associated inverse floaters, and because fluctuations in the value of the municipal bond deposited in the TOB trust would only affect the value of the inverse floater and not the value of the short-term floater issued by the trust so long as the value of the municipal bond held by the trust exceeded the face amount of short-term floaters outstanding, the value of inverse floaters is generally more volatile than that of an otherwise comparable municipal bond held on an unleveraged basis outside a TOB trust. Inverse floaters generally will underperform the market of fixed-rate bonds in a rising interest rate environment (i.e., when bond values are falling), but will tend to outperform the market of fixed-rate bonds when interest rates decline or remain relatively stable. Although volatile in value and return, inverse floaters typically offer the potential for yields higher than those available on fixed-rate bonds with comparable credit quality, coupon, call provisions and maturity. Inverse floaters have varying degrees of liquidity or illiquidity based primarily upon the inverse floater holder’s ability to sell the underlying bonds deposited in the TOB trust at an attractive price.

The Fund may invest in inverse floating rate securities issued by TOB trusts in which the liquidity providers have recourse to the Fund pursuant to a separate shortfall and forbearance agreement. Such an agreement would require the Fund to reimburse the liquidity provider, among other circumstances, upon termination of the TOB trust for the difference between the liquidation value of the bonds held in the trust and the principal amount and accrued interest due to the holders of floating rate securities issued by the trust. The Fund will enter into such a recourse agreement (1) when the liquidity provider requires such a recourse agreement because the level of leverage in the TOB trust exceeds the level that the liquidity provider is willing to support absent such an agreement; and/or (2) to seek to prevent the liquidity provider from collapsing the trust in the event the municipal bond held in the trust has declined in value to the point where it may cease to exceed the face amount of outstanding short-term floaters. In an instance where the Fund has entered such a recourse agreement, the Fund may suffer a loss that exceeds the amount of its original investment in the inverse floating rate securities; such loss could be as great as that original investment amount plus the face amount of the floating rate securities issued by the trust plus accrued interest thereon.

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

Floating Rate Securities. The Fund may also invest in short-term floating rate securities, as described above, issued by TOB trusts. 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 other periods of up to one year. Since the tender option feature provides a shorter term than the final maturity or first call date of the underlying municipal bond deposited in the trust, the Fund, as the holder of the floating rate securities, relies upon the terms of the remarketing and liquidity agreements with the financial institution that acts as remarketing agent and/or liquidity provider as well as the credit strength of that institution. As further assurance of liquidity, the terms of the TOB trust provide for a liquidation of the municipal bond deposited in the trust and the application of the proceeds to pay off the floating rate securities. The TOB trusts that are organized to issue both short-term floating rate securities and inverse floaters generally include liquidation triggers to protect the investor in the floating rate securities.

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 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.

Zero Coupon Bonds. A zero coupon bond is a bond that typically does not pay interest either for the entire life of the obligation or for an initial period after the issuance of the obligation. When held to its maturity, the holder receives the par value of the zero coupon bond, which generates a return equal to the difference between the purchase price and its maturity value. A zero coupon bond is normally issued and traded at a deep discount from face value. This

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Portfolio Composition and Other Information

original issue discount (“OID”) approximates the total amount of interest the security will accrue and compound prior to its maturity and reflects the payment deferral and credit risk associated with the instrument. Because zero coupon bonds, and OID instruments generally, allow an issuer to avoid or delay the need to generate cash to meet current interest payments, they may involve greater payment deferral and credit risk than coupon loans and bonds that pay interest currently or in cash. The Fund generally will be required to distribute dividends to shareholders representing the income of these instruments as it accrues, even though the Fund will not receive all of the income on a current basis or in cash. Thus, the Fund may have to sell other investments, including when it may not be advisable to do so, and use the cash proceeds to make income distributions to its shareholders. For accounting purposes, these cash distributions to shareholders will not be treated as a return of capital.

Special Situations Securities

The Fund may invest in special situations municipal securities. Special situations municipal securities are municipal securities:

The portion of the Fund’s assets invested in special situations municipal securities may fluctuate significantly over time according to the availability of attractive special situations municipal securities opportunities. See “Risks—Portfolio Level Risks—Special Situations Municipal Securities Risk” below.

Corporate Debt Securities

The Fund may invest in corporate debt securities, including 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.

U.S. Treasury Securities

The Fund may invest in U.S. Government direct obligations. U.S. Government direct obligation are issued by the United States Treasury and include bills, notes and bonds. Treasury bills are issued with maturities of up to one year. They are issued in bearer form, are sold on a discount basis and are payable at par value at maturity. Treasury notes are longer-term interest-bearing obligations with original maturities of one to seven years. Treasury bonds are longer-term interest-bearing obligations with original maturities from five to thirty years.

Derivatives

The Fund may use in certain derivative instruments in pursuit of its investment objectives. Such instruments include financial futures contracts, swap contracts (including interest rate and credit default swaps), options on financial futures, options on swap contracts or other derivative instruments. The Fund may also use credit default swaps and interest rate swaps. 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. If the Fund is a seller of a contract, the Fund would be required to pay the par (or other agreed upon) value of a referenced debt obligation to

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the counterparty in the event of a default or other credit event by the reference issuer, such as a U.S. or foreign corporate issuer, with respect to such debt obligations. In return, the Fund would receive from the counterparty a periodic stream of payments over the term of the contract provided that no event of default has occurred. If no default occurs, the Fund would keep the stream of payments and would have no payment obligations. As the seller, the Fund would be subject to investment exposure on the notional amount of the swap. If the Fund is a buyer of a contract, the Fund would have the right to deliver a referenced debt obligation and receive the par (or other agreed-upon) value of such debt obligation from the counterparty in the event of a default or other credit event (such as a credit downgrade) by the reference issuer, such as a U.S. or foreign corporation, with respect to its debt obligations. In return, the Fund would pay the counterparty a periodic stream of payments over the term of the contract provided that no event of default has occurred. If no default occurs, the counterparty would keep the stream of payments and would have no further obligations to the Fund. 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.

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 hedge some of the risk of the Fund’s investments in municipal securities 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 municipal securities and other related investments the income from which is exempt from regular federal income tax.

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”).

The Fund may enter into swap transactions for any purpose consistent with its investment objectives 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 security 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

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Portfolio Composition and Other Information

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.

Municipal Market Data Rate Locks. The Fund may purchase and sell municipal market data rate locks (“MMD Rate Locks”). An MMD Rate Lock permits the Fund to lock in a specified municipal interest rate for a portion of its portfolio to preserve a return on a particular investment or a portion of its portfolio as a duration management technique or to protect against any increase in the price of securities to be purchased at a later date. By using an MMD Rate Lock, the Fund can create a synthetic long or short position, allowing the Fund to select what the manager believes is an attractive part of the yield curve. The Fund will ordinarily use these transactions as a hedge or for duration or risk management although it is permitted to enter into them to enhance income or gain or to increase the Fund’s yield, for example, during periods of steep interest rate yield curves (i.e., wide differences between short term and long term interest rates). An MMD Rate Lock is a contract between the Fund and an MMD Rate Lock provider pursuant to which the parties agree to make payments to each other on a notional amount, contingent upon whether the Municipal Market Data AAA General Obligation Scale is above or below a specified level on the expiration date of the contract. For example, if the Fund buys an MMD Rate Lock and the Municipal Market Data AAA General Obligation Scale is below the specified level on the expiration date, the counterparty to the contract will make a payment to the Fund equal to the specified level minus the actual level, multiplied by the notional amount of the contract. If the Municipal Market Data AAA General Obligation Scale is above the specified level on the expiration date, the Fund will make a payment to the counterparty equal to the actual level minus the specified level, multiplied by the notional amount of the contract. In connection with investments in MMD Rate Locks, there is a risk that municipal yields will move in the opposite direction than anticipated by the Fund, which would cause the Fund to make payments to its counterparty in the transaction that could adversely affect the Fund’s performance.

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 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.

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 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 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.”

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

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.

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.

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Portfolio Composition and Other Information

Bonds

The Fund may invest in a wide variety of bonds of varying maturities issued by the U.S. government and municipalities (during the initial investment period or for temporary defensive measures) and other issuers. Bonds are fixed or variable-rate debt obligations, including bills, notes, debentures, money market instruments and similar instruments and securities. Bonds generally are used by corporations as well as governments and other issuers to borrow money from investors. The issuer pays the investor a fixed or variable rate of interest and normally must repay the amount borrowed on or before maturity. 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).

Illiquid Investments

The Fund may invest in investments and other instruments that, at the time of investment, are illiquid (i.e., investments that are not readily marketable). For this purpose, illiquid investments may include, but are not limited to, restricted investments (investments the disposition of which is restricted under the federal securities laws), investments that may only be resold pursuant to Rule 144A under the Securities Act of 1933, as amended (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 circumstances were to develop, the Fund might obtain a less favorable price than that which prevailed when it decided to sell. Illiquid investments will be priced at fair value as determined in good faith by the Board of Trustees or its delegate.

Temporary Defensive Investments

For temporary defensive purposes, during periods of high cash inflows or outflows, or during a Repurchase Offer Period, the Fund may depart from its principal investment strategies and invest up to 100% of its Managed Assets in cash equivalents, U.S. government securities and other high-quality short-term debt securities. During such periods, the Fund may not be able to achieve its investment objectives. The Fund may adopt a defensive strategy when Nuveen Asset Management believes the instruments in which the Fund normally invests have elevated risks due to political or economic factors, in the event that unanticipated legal or regulatory developments interfere with implementation of the Fund’s principal investment strategies, and in other extraordinary circumstances.

Portfolio Turnover

It is not the Fund’s policy to engage in transactions with the objective of seeking profits from short-term trading. For the fiscal period ended March 31, 2022, the Fund’s portfolio turnover rate was 88%. 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.”

Portfolio Composition and Other Information

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Leverage

The Fund uses to seek to achieve its investment objectives. The Fund may use leverage to the extent permitted under the 1940 Act. The Fund may obtain leverage through either investments in inverse floating rate securities, which represent leveraged investments in underlying bonds, borrowings, reverse repurchase agreements (effectively a borrowing) and issuing Preferred Shares, or a combination of thereof.

The Fund may source leverage through a number of methods including investing in inverse floating rate securities, issuance of debt securities, borrowings, entering into reverse repurchase agreements (effectively a borrowing), and issuance of Preferred Shares. The Fund currently utilizes a credit facility with a financial institution to borrow up to an aggregate limit of $30,000,000 (the “Credit Facility”) and inverse floating rate securities as leverage. As of June 30, 2022, the Fund had $20,000,000 outstanding under its Credit Facility.

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. Investments in inverse floating rate securities have the economic effect of leverage. See “Risks—Portfolio Level Risks—Inverse Floating Rate Securities 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, date and interest payment. Selling a portfolio security 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.”

The Fund may use derivatives, such as interest rate swaps with varying terms, in order to 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.

The Fund may reduce or increase the amount of leverage based upon changes in market conditions and/or composition of the Fund’s holdings. The Fund’s leverage ratio will vary from time to time based upon such changes in the amount of leverage used, variations in the value of the Fund’s holdings and the levels of Common Share subscription and repurchase offer activity related to the Fund’s continuously offered interval fund structure. 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 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 objectives. 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

36

Leverage

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 such action 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. “Senior securities” have seniority over the Common Shares in regard to the income and assets of the Fund. 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 (“Preferred Shares”); 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. 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. In order to comply with these limitations, the Fund may be required to take certain actions, such as redeeming all or a portion of its Preferred Shares or reducing its borrowings. The Fund may find it necessary to hold a portion of its net assets in cash or other liquid assets or sell a portion of its portfolio investments during times and at prices when it otherwise would not do so in order to accomplish such actions. Accordingly, such actions could reduce the net earnings or returns to Common Shareholders over time, and such impact would be magnified when Preferred Shares and/or borrowings are outstanding as the Fund would be required to make provision for both the potential need to redeem Preferred Shares and/or repay borrowings and its obligation to repurchase Common Shares pursuant to the Fund’s fundamental policy regarding repurchases. See “Periodic Repurchase Offers.” Moreover, the Fund also may be required to redeem its Preferred Shares or reduce borrowings from time to time to permit it to repurchase Common Shares pursuant to the Fund’s repurchase policy in compliance with applicable asset coverage requirements described above. 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 objectives 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,” “—Portfolio Level Risks—Inverse Floating Rate Securities Risk” and “—Reverse Repurchase Agreement Risk.” There is no assurance that the Fund’s use of leverage will work as planned or achieve its goals.

Effects of Leverage

The following table is furnished in response to requirements of the SEC. It is designed to illustrate the effects of leverage through the use of senior securities, as that term is defined under Section 18 of the 1940 Act, as well as certain other forms of leverage, such as reverse repurchase agreements and investments in inverse floating rate securities, on common share total return, assuming investment portfolio total returns (consisting of income and

Leverage

37

changes in the value of investments held in the Fund’s portfolio) of -10%, -5%, 0%, 5% and 10%. The table below reflects the Fund’s (i) continued use of leverage as of March 31, 2022 as a percentage of Managed Assets (including assets attributable to such leverage), (ii) the estimated annual effective interest expense rate payable by the Fund on such instruments (based on actual leverage costs incurred during the fiscal period ended March 31, 2022) as set forth in the table, and (iii) the annual return that the Fund’s portfolio must experience (net of expenses) in order to cover such costs of leverage based on such estimated annual effective interest expense rate. The information below does not reflect any Fund’s use of certain other forms of economic leverage achieved through the use of other instruments or transactions not considered to be senior securities under the 1940 Act, such as certain derivative instruments and investments in inverse floating rate securities.

The numbers are merely estimates, used for illustration. The costs of leverage may vary frequently and may be significantly higher or lower than the estimated rate. The assumed investment portfolio returns in the table below are hypothetical figures and are not necessarily indicative of the investment portfolio returns experienced or expected to be experienced by the Fund. Your actual returns may be greater or less than those appearing below.

Common Share total return is composed of two elements—the distributions paid by the Fund to holders of common shares (the amount of which is largely determined by the net investment income of the Fund after paying dividend payments on any preferred shares issued by the Fund and expenses on any forms of leverage outstanding) and gains or losses on the value of the securities and other instruments the Fund owns. As required by SEC rules, the table 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 income it receives on its investments is entirely offset by losses in the value of those investments. This table reflects hypothetical performance of the Fund’s portfolio and not the actual performance of the Fund’s common shares, the value of which is determined by market forces and other factors. Should the Fund elect to add additional leverage to its portfolio, any benefits of such additional leverage cannot be fully achieved until the proceeds resulting from the use of such leverage have been received by the Fund and invested in accordance with the Fund’s investment objectives and policies. As noted above, the Fund’s willingness to use additional leverage, and the extent to which leverage is used at any time, will depend on many factors.

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Leverage

Risks

The Fund is a non-diversified, closed-end management investment company that continuously offers its Common Shares and is operated as an interval fund. 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 objectives. The Fund’s performance and the value of its investments will vary in response to changes in interest rates, inflation, the financial condition of a security’s issuer, ratings on a security, 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.

Portfolio Level Risks

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 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.

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 may 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.

Issuer Credit Risk—Issuers of securities 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 security experiencing non-payment and, potentially, a decrease in the NAV of the Fund. With respect to the Fund’s investments in securities 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 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.

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

Risks

39

Below Investment Grade Risk—Debt 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 junk bonds or high yield debt, 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 security goes into default, or its issuer enters bankruptcy, it might be difficult to sell that security 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 securities 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 securities 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 securities, may experience the following:

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

Special Situations Municipal Securities Risk—The availability of special situations municipal securities that present attractive investment opportunities has historically been sporadic and may in the future be rare or at times non-existent. As such, the portion of the Fund’s assets invested in special situations municipal securities may fluctuate significantly over time according to the availability of attractive special situations municipal securities opportunities. At times when the portion of the Fund’s assets invested in special situations municipal securities is low, due to lack of availability of special situations municipal securities or otherwise, that low level exposure to such securities may impede the Fund’s ability to fully pursue its investment objectives.

Special situations municipal securities present both unusual opportunities and challenges. The ability of the Fund to capitalize on its investments in special situations municipal securities will be dependent on several factors including, but not limited to, Nuveen Asset Management’s ability (1) to select special situations municipal securities to invest in that have good prospects for improving their creditworthiness over time, or otherwise experiencing price improvement; (2) to manage the various special situations municipal securities’ credits through the recovery process, including work-outs, buyouts and bankruptcies; (3) to buy attractively-priced special situations municipal securities that have the potential to appreciate significantly in value or minimize losses, depending on market conditions; and (4) to liquidate its investments in special situations municipal securities, either by selling such securities to other investors at attractive prices, or by receiving cash, securities or other assets of value after and as a result of a work-out or the issuer’s emergence from bankruptcy.

Nuveen Asset Management’s ability to succeed in these efforts will require skills and techniques that are different from or in addition to the skills and techniques used by a typical municipal investment manager. There is no assurance that Nuveen Asset Management will succeed in its efforts, or that market circumstances will end up being favorable to deriving outsized returns from investments in special situations municipal securities.

40

Risks

Interest Rate Risk—Generally, when market interest rates rise, bond prices fall, and vice versa. Interest rate risk is the risk that municipal securities in the Fund’s portfolio will decline in value because of changes in market interest rates. As interest rates decline, issuers of municipal securities may prepay principal earlier than scheduled, forcing the Fund to reinvest in lower-yielding municipal securities and potentially reducing the Fund’s income. As interest rates increase, slower than expected principal payments may extend the average life of municipal 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 municipal securities generally fluctuate more than prices of shorter-term municipal securities as interest rates change. The risks associated with rising interest rates are greatly heightened in view of the US Federal Reserve Bank’s decision to raise the federal funds rate from historic lows, and may continue to raise interest rates if considered necessary to reduce inflation to acceptable levels.

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

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.

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’ 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.

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 Securities—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. 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 (i.e., the Fund typically bears the risk of loss with respect to any liquidity shortfall). 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. 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. 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.

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

Risks

41

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 has 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 “Risks—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 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.

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. The Fund may invest a significant portion of 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.

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 cannot be resold to the public without an effective registration statement under the Securities Act of 1933, as amended (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

42

Risks

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.

Defaulted and Distressed Securities Risk—The Fund may invest in any securities of an issuer that is in default or that is in bankruptcy or insolvency proceedings. However, 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 to a limited extent in securities rated Caa/CCC or lower, or unrated but judged by Nuveen Asset Management to be of comparable quality. Some or many of these low-rated securities, although not in default, may be “distressed,” meaning that the issuer is experiencing financial difficulties or distress at the time of acquisition. Such securities 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 security, the Fund may lose its entire investment or may be required to accept cash or securities with a value less than its original investment. Defaulted or distressed securities 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 over-the-counter (”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 objectives. The use of derivatives to enhance returns may be particularly speculative.

Risk of Swaps and Swap Options—The Fund may enter into debt-related derivatives instruments including credit default 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.

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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.

Risk of Financial Futures and Options Transactions—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 and price movements of the portfolio securities 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 municipal securities, 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 municipal securities that were the subject of the anticipatory hedge. The cost of put options on municipal 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.

Puerto Rico Municipal Securities Market Risk—To the extent that the Fund invests a significant portion of its assets in the securities issued by the Commonwealth of Puerto Rico or its political subdivisions, agencies, instrumentalities, or public corporations (collectively referred to in this prospectus as “Puerto Rico” or the “Commonwealth”), it will be disproportionally affected by political, social and economic conditions and developments in the Commonwealth. In addition, economic, political or regulatory changes in that territory could adversely affect the value of the Fund’s investment portfolio.

Puerto Rico currently is experiencing significant fiscal and economic challenges, including substantial debt service obligations, high levels of unemployment, underfunded public retirement systems, and persistent government budget deficits. These challenges may negatively affect the value of the Fund’s investments in Puerto Rican municipal securities. Several major ratings agencies have downgraded the general obligation debt of Puerto Rico to below investment grade and continue to maintain a negative outlook for this debt, which increases the likelihood that the rating will be lowered further. Puerto Rico recently defaulted on its debt by failing to make full payment due on its outstanding bonds, and there can be no assurance that Puerto Rico will be able to satisfy its future debt obligations. Further downgrades or defaults may place additional strain on the Puerto Rico economy and may negatively affect the value, liquidity, and volatility of the Fund’s investments in Puerto Rican municipal securities. Additionally, numerous issuers have entered Title III of the Puerto Rico Oversite, Management and Economic Stability Act (“PROMESA”),

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which is similar to bankruptcy protection, through which the Commonwealth of Puerto Rico can restructure its debt. However, Puerto Rico’s case is the first ever heard under PROMESA and there is no existing case precedent to guide the proceedings. Accordingly, Puerto Rico’s debt restructuring process could take significantly longer than traditional municipal bankruptcy proceedings. Further, it is not clear whether a debt restructuring process will ultimately be approved or, if so, the extent to which it will apply to Puerto Rico municipal securities sold by an issuer other than the territory. A debt restructuring could reduce the principal amount due, the interest rate, the maturity, and other terms of Puerto Rico municipal securities, which could adversely affect the value of Puerto Rican municipal securities. Legislation that would allow Puerto Rico to restructure its municipal debt obligations, thus increasing the risk that Puerto Rico may never pay off municipal indebtedness, or may pay only a small fraction of the amount owed, could also impact the value of the Fund’s investments in Puerto Rican municipal securities.

These challenges and uncertainties have been exacerbated by multiple hurricanes and a series of earthquakes and the resulting natural disasters that have struck Puerto Rico since 2017. The full extent of the natural disasters’ impact on Puerto Rico’s economy and foreign investment in Puerto Rico is difficult to estimate.

Puerto Rico’s political and economic conditions could have a negative impact on the liquidity or value of Puerto Rican municipal securities, and consequently may affect the Fund’s investments and its performance if the Fund invests a significant portion of its assets in Puerto Rican municipal securities.

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.

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 dividend or 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.

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 the Nuveen Asset Management’s credit analysis than would be the case when the Fund invests in rated securities.

Valuation Risk—The municipal bonds in which the Fund may invest 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 security at the price established by the pricing service, which could result in a loss to the Fund. Pricing services generally price municipal bonds 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 securities. 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.

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Zero Coupon Bonds Risk—Because interest on zero coupon bonds is not paid on a current basis, the values of zero coupon bonds will be more volatile in response to interest rate changes than the values of bonds that distribute income regularly. Although zero coupon bonds generate income for accounting purposes, they do not produce cash flow, and thus the Fund could be forced to liquidate securities at an inopportune time in order to generate cash to distribute to shareholders as required by tax laws.

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 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. Hedging activities may reduce the Fund’s opportunities for gain by offsetting the positive effects of favorable price movements and may result in net losses.

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 gains. 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 regular corporate rates, 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. 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 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 individual retirement accounts, for other tax exempt or tax-deferred accounts or for investors who are not sensitive to the federal income tax consequences of their investments. The Fund’s investment in AMT Bonds may trigger adverse tax consequences for Fund shareholders who are subject to the federal alternative minimum tax. If you are, or as a result of investment in the Fund would become, subject to the federal alternative minimum tax, the Fund may not be a suitable investment for you. In addition, distributions of taxable ordinary income (including any net short-term capital gain) will be taxable to shareholders as ordinary income (and not 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.”

Alternative Minimum Tax Risk—The Fund may invest in AMT Bonds. Therefore, a portion of the Fund’s otherwise exempt-interest dividends may be taxable to those shareholders subject to the federal alternative minimum tax.

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.

Taxability Risk—The Fund will invest in municipal securities in reliance at the time of purchase on an opinion of bond counsel to the issuer that the interest paid on those securities will be excludable from gross income for federal income tax purposes, and Nuveen Asset Management will not independently verify that opinion. Subsequent to the Fund’s acquisition of such a municipal security, however, the security may be determined to pay, or to have paid, taxable

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Risks

income. As a result, the treatment of dividends previously paid or to be paid by the Fund as “exempt-interest dividends” could be adversely affected, subjecting the Fund’s shareholders to increased federal income tax liabilities.

Distributions of taxable ordinary income (including any net short-term capital gain) will be taxable to shareholders as ordinary income (and not eligible for favorable taxation as “qualified dividend income”), and capital gain dividends will be taxable as long-term capital gains. See “Tax Matters.”

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. Currently, inflation rates are elevated relative to normal market conditions and could continue to increase.

Insurance Risk—The Fund may purchase municipal securities that are secured by insurance, bank credit agreements or escrow accounts. The credit quality of the companies that provide such credit enhancements will affect the value of those securities. Certain significant providers of insurance for municipal securities have incurred significant losses as a result of exposure to sub-prime mortgages and other lower credit quality investments. As a result, such losses have reduced the insurers’ capital and called into question their continued ability to perform their obligations under such insurance if they are called upon to do so in the future. While an insured municipal security will typically be deemed to have the rating of its insurer, if the insurer of a municipal security suffers a downgrade in its credit rating or the market discounts the value of the insurance provided by the insurer, the value of the municipal security would more closely, if not entirely, reflect such rating. In such a case, the value of insurance associated with a municipal security may not add any value. The insurance feature of a municipal security does not guarantee the full payment of principal and interest through the life of an insured obligation, the market value of the insured obligation or the NAV of the Common Shares represented by such insured obligation.

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. 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.

Tender Option Bond Regulatory Risk—The federal banking regulators, the SEC and the CFTC in recent years have adopted rules and regulations that have impacted or may impact TOB trusts and securities issued by such trusts, including most notably the so-called “Volcker Rule”, added to the Bank Holding Company Act of 1956 with the adoption of the Dodd-Frank Act. The Volcker Rule places certain restrictions on the ability of any “banking entity” to sponsor, acquire interests in and engage in certain activities with a TOB trust. As a result, certain activities to support the remarketing of floating rate certificates undertaken by banking entities, in their role as remarketing agents or liquidity providers to TOB trusts, before the compliance date for the Volcker Rule, are no longer permitted under the standard TOB trust structure. To be compliant with the Volcker Rule, the standard TOB trust structure has been modified since the Rule’s adoption (i) to shift certain rights and responsibilities from the remarketing agent and liquidity provider to the owners of the inverse floating rate securities such as the Fund itself, and (ii) to change the way in which liquidity is provided to support remarketing of the floating rate securities. Holders of the inverse floating rate securities, including the Fund, may delegate many of these responsibilities to a third party administrator, which would generate additional costs relative to the standard TOB trust structure. The total impact of these modifications remains to be fully seen, but the operational and structural changes associated with these modifications may make early unwinds of TOB trusts in adverse market scenarios more likely, may make the use of TOB trusts more expensive and, overall, may make it more difficult to use TOB trusts to effectively leverage municipal investments to the extent that the Fund may desire. In addition, these modifications have raised or may raise other regulatory issues that may require further refinement to the structure, may impede the future use of TOB trusts as a means of financing leverage, or may increase future costs of TOB-based leverage.

Tobacco Settlement Bond Risk—Tobacco settlement bonds are municipal securities that are backed solely by expected revenues to be derived from lawsuits involving tobacco related deaths and illnesses which were settled between certain states and American tobacco companies. Tobacco settlement bonds are secured by an issuing state’s proportionate share in the Master Settlement Agreement (“MSA”). The MSA is an agreement reached out of court in November 1998 between 46 states and nearly all of the U.S. tobacco manufacturers. Under the terms of the MSA, the actual amount of future settlement payments by tobacco manufacturers is dependent on many factors, including, but not limited to, annual domestic cigarette shipments, reduced cigarette consumption, increased taxes on cigarettes, inflation, financial capability of tobacco companies, continuing litigation and the possibility of tobacco manufacturer bankruptcy. Payments made by tobacco manufacturers could be negatively impacted if the decrease in tobacco consumption is significantly greater than the forecasted decline.

Risks

47

Fund Level Risks

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 securities 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.

Repurchase Offers Risk—As described under “Periodic Repurchase Offers”, the Fund is an “interval fund” and, in order to provide liquidity to Common Shareholders, the Fund, subject to applicable law, intends to conduct quarterly repurchase offers of the Fund’s outstanding Common Shares at NAV, subject to approval of the Board of Trustees. In each quarter, such repurchase offers will be for at least 5% of its outstanding Common Shares at NAV, pursuant to Rule 23c-3 under the 1940 Act.

The Fund currently expects to conduct quarterly repurchase offers for 7.5% of its outstanding Common Shares under ordinary circumstances. The Fund believes that these repurchase offers are generally beneficial to the Fund’s Common Shareholders, and repurchases generally will be funded from available cash or sales of portfolio securities. However, repurchase offers and the need to fund repurchase obligations may affect the ability of the Fund to be fully invested or force the Fund to maintain a higher percentage of its assets in liquid investments, which may harm the Fund’s investment performance. Moreover, diminution in the size of the Fund through repurchases may result in untimely sales of portfolio securities (with associated imputed transaction costs, which may be significant), and may limit the ability of the Fund to participate in new investment opportunities or to achieve its investment objectives. The Fund may accumulate cash by holding back (i.e., not reinvesting) payments received in connection with the Fund’s investments. The Fund believes that payments received in connection with the Fund’s investments will generate sufficient cash to meet the maximum potential amount of the Fund’s repurchase obligations. If at any time cash and other liquid assets held by the Fund are not sufficient to meet the Fund’s repurchase obligations, the Fund intends, if necessary, to sell investments. If, as expected, the Fund employs leverage, repurchases of Common Shares would compound the adverse effects of leverage in a declining market. In addition, if the Fund borrows to finance repurchases, interest on that borrowing will negatively affect Common Shareholders who do not tender their Common Shares by increasing the Fund’s expenses and reducing any net investment income. If a repurchase offer is oversubscribed, the Board of Trustees may determine to increase the amount repurchased by up to 2% of the Fund’s outstanding Common Shares as of the date of the Repurchase Request Deadline. In the event that the Board of Trustees determines not to repurchase more than the repurchase offer amount, or if Common Shareholders tender more than the repurchase offer amount plus 2% of the Fund’s outstanding Common Shares as of the date of the Repurchase Request Deadline, the Fund will repurchase the Common Shares tendered on a pro rata basis, and Common Shareholders will have to wait until the next repurchase offer to make another repurchase request. As a result, Common Shareholders may be unable to liquidate all or a given percentage of their investment in the Fund during a particular repurchase offer. Some Common Shareholders, in anticipation of proration, may tender more Common Shares than they wish to have repurchased in a particular quarter, thereby increasing the likelihood that proration will occur. A Common Shareholder may be subject to market and other risks, and the NAV of Common Shares tendered in a repurchase offer may decline between the Repurchase Request Deadline and the date on which the NAV for tendered Common Shares is determined. In addition, the repurchase of Common Shares by the Fund may be a taxable event to Common Shareholders.

While the Fund anticipates having enough cash on hand to fund share repurchases, it may need to sell securities in order to generate enough cash to fund share repurchases. This may cause the Fund to have a higher portfolio turnover rate than is generally anticipated. A higher portfolio turnover rate may result in higher taxes to Fund investors. This is because the sale of securities may accelerate the recognition of capital gains by the Fund (if the Fund’s basis in securities sold is less than the proceeds from the sale of the security) which may be distributed to investors, and it is more likely that such gains will be taxable as short-term capital gains rather than long-term capital gains that are taxable at lower rates.

If shares tendered by an investor are repurchased by the Fund, it will be a taxable transaction to the investor either in the form of a “sale or exchange” which would be taxable to an investor at capital gain tax rates, assuming such shares are held as a capital asset, or, under certain circumstances, a “dividend” which would be taxable to an investor at ordinary income tax rates. See “Tax Matters—Sale, Exchange of Liquidation of Fund Shares” in the SAI for additional information.

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 Common Share distributions. The use of leverage in a declining market will likely cause a greater decline in Common Share NAV 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, increase or decrease the amount

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of leverage. Such changes may impact the Fund’s distributions. 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.

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 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 securities 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.

Non-Diversified Status Risk—The Fund is a non-diversified fund. As defined in the 1940 Act, a non-diversified fund may invest a significant part of its investments in a smaller number of issuers than can a diversified fund. Having a larger percentage of assets in a smaller number of issuers makes a non-diversified fund, like the Fund, more susceptible to the risk that one single event or occurrence can have a significant adverse impact upon the Fund.

Large Shareholder Risk—To the extent a large proportion of the Common Shares are held by a small number of Common Shareholders (or a single shareholder), including affiliates of Nuveen Fund Advisors, the Fund is subject to the risk that these shareholders will purchase Common Shares in large amounts rapidly or unexpectedly. These transactions could adversely affect the ability of the Fund to conduct its investment program. Furthermore, it is possible that in response to a repurchase offer, the total amount of Common Shares tendered by a small number of Common Shareholders (or a single shareholder) may exceed the number of Common Shares that the Fund has offered to repurchase. If a repurchase offer is oversubscribed by Common Shareholders, the Fund will repurchase only a pro rata portion of shares tendered by each shareholder. See “Fund Level Risks—Repurchase Offers Risk” above.

Small Fund Risk—There can be no assurance that the Fund will grow to, or maintain, an economically viable size. A fund with a smaller asset base may experience higher expenses and portfolio transaction costs than a fund with a larger asset base. To the extent that the Fund does not grow to, or maintain, an economically viable size, it may be liquidated, and the expenses, timing and tax consequences of such liquidation may not be favorable to certain shareholders.

Other Risks

Economic and Political Events Risk—The Fund may be more sensitive to adverse economic, business or political developments if it invests a substantial portion of its assets in the municipal securities of similar projects (such as those relating to the education, health care, housing, transportation, or utilities industries), industrial development bonds, or in particular types of municipal securities (such as general obligation bonds, private activity bonds or moral obligation bonds). Such developments may adversely affect a specific industry or local political and economic conditions, and thus may lead to declines in the creditworthiness and value of such municipal securities.

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, instability in various countries, such as Afghanistan and Syria, 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—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

Risks

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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. In addition, Russia’s recent invasion of Ukraine in February 2022 has resulted in sanctions imposed by several nations, such as the United States, United Kingdom, European Union and Canada. The current sanctions and potential further sanctions may negatively impact certain sectors of Russia’s economy, but also may negatively impact the value of the Fund’s investments that do not have direct exposure to Russia. 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.

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 the 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—Periods of unusually high financial market volatility and restrictive credit conditions, at times limited to a particular sector or geographic area, have occurred in the past and may be expected to recur in the future. Some countries, including the United States, have adopted or have signaled protectionist trade measures, relaxation of the financial industry regulations that followed the financial crisis, and/or reductions to corporate taxes. The scope of these policy changes is still developing, but the equity and debt markets may react strongly to expectations of change, which could increase volatility, particularly if a resulting policy runs counter to the market’s expectations. The outcome of such changes cannot be foreseen at the present time. In addition, geopolitical and other risks, including environmental and public health risks, may add to instability in the world economy and markets generally. As a result of increasingly interconnected global economies and financial markets, the value and liquidity of the Fund’s investments may be negatively affected by events impacting a country or region, regardless of whether the Fund invests in issuers located in or with significant exposure to such country or region.

The current outbreak of COVID-19 has resulted in instances of market closures and dislocations, extreme volatility, liquidity constraints and increased trading costs. Efforts to contain the spread of COVID-19 have resulted in travel restrictions, closed international borders, disruptions of healthcare systems, business operations (including business closures) and supply chains, layoffs, lower consumer demand and employee availability, defaults and credit downgrades, among other significant economic impacts, all of which have disrupted global economic activity across many industries and may exacerbate other pre-existing political, social and economic risks, locally or globally and cause general concern and uncertainty. The full economic impact and ongoing effects of COVID-19 (or other future epidemics or pandemics) at the macro-level and on individual businesses are unpredictable and may result in significant and prolonged effects on the Fund’s performance.

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) 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 (2) limitations on the Fund’s ability to make distributions or dividends, as applicable, to Common Shareholders.

Governmental authorities and regulators throughout the world, such as the U.S. Federal Reserve, have in the past responded to major economic disruptions with changes to fiscal and monetary policy, including but not limited to, direct capital infusions, new monetary programs, and dramatically lower interest rates. Certain of those policy changes are being implemented or considered in response to the COVID-19 outbreak. Such policy changes may adversely affect the value, volatility and liquidity of instruments in which the Fund invests.

On June 23, 2016, the UK held a referendum on whether to remain a member state of the EU, in which voters favored the UK’s withdrawal from the EU, an event widely referred to as “Brexit.” On January 31, 2020, the UK formally withdrew from the EU. The transition period concluded on December 31, 2020, and EU law no longer applies in the

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Risks

UK. On December 30, 2020, the UK and EU signed the 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, most recently in February 2022 when Russia invaded Ukraine; 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 ongoing trade war between China and the United States, including the imposition of tariffs by each country on the other country’s products, has created a tense political environment. 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 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, securities held by the Fund or the issuers of such securities. Changing approaches to regulation may have a negative impact on the entities and/or securities 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 objectives.

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.

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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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 securities, in lower-yielding securities.

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.

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). Geopolitical tensions may, from time to time, increase the scale and sophistication of deliberate cyberattacks. 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 a 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 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.

Litigation Risk—From time to time, the Fund, Nuveen Fund Advisors and Nuveen Asset Management may be subject to pending or threatened litigation or regulatory action. Some of these claims may result in significant defense costs and potentially significant judgments. The ultimate outcome of any potential litigation or regulatory action or any claims that may arise in the future cannot be predicted and the reputation of the Fund, Nuveen Fund Advisors and/or Nuveen Asset Management could be damaged as a result. Certain litigation or regulatory scrutiny could materially adversely affect the Fund. The resolution of certain claims may result in significant fines, judgments, or settlements, which, if partially or completely uninsured, could adversely impact the Fund or the ability of Nuveen Fund Advisors and/or Nuveen Asset Management to perform their duties to 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 securities 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 securities transactions and take advantage of market opportunities.

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Risks

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.

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.

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

Risks

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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.

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.

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Risks

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

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 June 30, 2022, Nuveen managed approximately $1.1 trillion in assets, of which approximately $159.2 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.

Portfolio Managers. John Miller and Steve Hlavin serve as the Fund’s portfolio managers.

John Miller leads the municipals fixed income strategic direction and investment perspectives for Nuveen Asset Management. He also manages several municipal bond strategies and closed-end funds. John is a trusted public voice in discussing key issues and trends within the municipal market. He is a frequent guest on CNBC, Bloomberg Television and Fox Business News. His perspective is often sought out by leading industry media such as The Wall Street Journal, Barron’s, Bloomberg News and Morningstar.

John became the Head of Nuveen Municipals for Nuveen Asset Management in August of 2018 with the integration of the Nuveen Asset Management and TIAA Investments municipals team. Before being named Nuveen Asset Management’s co-head of fixed income in 2011, he was chief investment officer for the firm’s municipal bond team starting in 2007. He was named head of portfolio management for Nuveen Asset Management in 2006. He became a portfolio manager in 2000 after starting at the firm as a municipal credit analyst in 1996. He began working in the investment industry at a private account management firm in 1993.

Mr. Miller graduated with a B.A. in Economics and Political Science from Duke University, an M.A. in Economics from Northwestern University and an M.B.A. in Finance, with honors, from the University of Chicago. He holds the Chartered Financial Analyst designation and is a member of the CFA institute and the CFA society of Chicago.

Steven Hlavin is a member of the high yield portfolio management team, and is a portfolio manager for the Nuveen Short Duration High Yield Municipal Bond strategy and supports the management of the firm’s other High Yield Municipal Bond portfolios. He oversees a number of state-specific, tax-exempt portfolios including the Kansas Municipal Bond, Louisiana Municipal Bond and Wisconsin Municipal Bond strategies. He is also responsible for the tender option bond/inverse floating rate program used by some of the firm’s closed-end and open-end funds. In addition, he manages two closed-end funds that rely on the use of tender option bonds for leverage and co-manages several ETFs.

Mr. Hlavin began his career in the investment industry in 2003 when he joined the Nuveen Asset Management. Prior to his current position at the firm, he worked as a senior analyst responsible for risk management and performance measurement processes.

Mr. Hlavin graduated with a B.A. in Finance and Accounting and an M.B.A. in Finance from Miami University. He has been a speaker at the Leveraging Performance Attribution Analysis for Fixed Income Investments Conference series and the Municipal Bond Buyers Conference.

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.

Management of the Fund

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Control Persons

A control person is a person who owns, either directly or indirectly, beneficially more than 25% of the voting securities of a company. As of June 30, 2022, the Fund did not know of any person or entity who “controlled” the Fund.

Investment Management and Subadvisory Agreements

Pursuant to an investment management agreement between Nuveen Fund Advisors and the Fund, the Fund pays 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 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.

Based on eligible assets as of June 30, 2022, the complex-level fee was 0.1571% of Managed Assets, and the total annual management fee to Nuveen Fund Advisors was 0.9571% 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

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Management of the Fund

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.

Nuveen Fund Advisors has agreed to waive fees and/or reimburse expenses through July 31, 2023, so that the total annual operating expenses of the Fund (excluding any distribution and/or service fees that may be applicable to a particular class of shares, issuance and dividend costs of Preferred Shares that may be issued by the Fund, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities, litigation expenses and extraordinary expenses) do not exceed 1.25% of the average daily Managed Assets of any class of Fund shares. This expense limitation may be terminated or modified prior to that date only with the approval of the Board of Trustees.

A discussion regarding the basis for the Board of Trustees’ most recent approval of the Investment Management Agreement for the Fund may be found in the Fund’s annual report to shareholders dated March 31 of each year.

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

A discussion regarding the basis for the Board of Trustees’ most recent approval of the Sub-Advisory Agreement for the Fund may be found in the Fund’s annual report to shareholders dated March 31 of each year.

Management of the Fund

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Net Asset Value

The NAV of the Fund’s Common Shares is determined by dividing the total value of the Fund’s portfolio investments and other assets, less any liabilities, by the total number of shares outstanding.

The price you pay for your Common Shares or the amount you receive upon the repurchase of your Common Shares is based on the Fund’s NAV per Common Share, which is determined as of the close of trading (normally 4:00 p.m., Eastern Time) on each day the New York Stock Exchange (“NYSE”) is open for business. The Fund’s latest NAV per Common Share is available on the Funds’ website at www.nuveen.com. 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 per Common Share. The Fund reserves the right to change the time as of which its respective NAV is calculated if the Fund closes earlier, or as permitted by the SEC.

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-equity portfolio instruments 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. In valuing municipal securities, the pricing services may also consider, among other factors, the yields or prices of municipal securities of comparable quality, type of issue, coupon, maturity and rating and the obligor’s credit characteristics considered relevant by the pricing service or the Board of Trustees’ designee. In pricing certain securities, particularly less liquid and lower quality securities, the pricing services may consider information about a security, its issuer or market activity provided by Nuveen Fund Advisors or Nuveen Asset Management.

If a price cannot be obtained from a pricing service or other pre-approved source, or if Nuveen Fund Advisors deems such price to be unreliable, or if a significant event occurs after the close of the local market but prior to the time at which the Fund’s net asset value is calculated, a portfolio instrument will be valued at its fair value as determined in good faith by the Board of Trustees or persons acting at its direction. 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.

Short-term fixed-income securities that will mature in 60 days or less are valued at amortized cost, unless it is determined that using this method would not reflect an investment’s fair value.

The Board of Trustees has adopted valuation procedures for the Fund and has delegated the day-to-day responsibility for fair value determinations to Nuveen Fund Advisors’ Valuation Committee. 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.

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Net Asset Value

Distributions

The Fund intends to pay a regular monthly income dividend to Common Shareholders.

The Fund intends to distribute, at least annually, realized capital gains (if any). The Fund may declare and pay dividends, capital gains or other taxable distributions more frequently, if necessary or appropriate in the Board of Trustees’ discretion.

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 Board of Trustees that such change is in the best interests of the Fund and its Common Shareholders.

Distributions

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Dividend Payments and Reinvestment Options

Each Common Shareholder will have all dividends, including any capital gain dividends, reinvested automatically in additional Common Shares, unless the shareholder elects to receive cash. An election to receive cash may be revoked or reinstated at the option of the shareholder. In the case of record shareholders such as banks, brokers or other nominees that hold common shares for others who are the beneficial owners, Common Shares will be administered on the basis of the number of Common Shares certified from time to time by the record shareholder as representing the total amount registered in such shareholder’s name and held for the account of beneficial owners. Shareholders whose shares are held in the name of a bank, broker or nominee should contact the bank, broker or nominee for details. Such shareholders may not be able to transfer their shares to another bank or broker.

Common Shares will be issued to you at their NAV on the ex-dividend date; there is no sales or other charge for reinvestment. You may request to have your dividends paid to you by check, sent via electronic funds transfer through Automated Clearing House network. For further information, contact your financial advisor or call Nuveen Investor Services at (833) 688-3368. If you request that your distributions be paid by check but those distributions cannot be delivered because of an incorrect mailing address, or if a distribution check remains uncashed for six months, the undelivered or uncashed distributions and all future distributions will be reinvested in Fund shares at the current net asset value.

Automatically reinvested dividends and distributions are taxed in the same manner as cash dividends and distributions. See “Tax Matters.”

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Dividend Payments and Reinvestment Options

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 $0.01 per share and, subject to differences between classes, have equal rights to the payment of dividends and the distribution of assets upon liquidation of the Fund. The Fund is currently offering three classes of Common Shares: Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The Fund may offer additional classes of Common Shares in the future pursuant to exemptive relief from the SEC. An investment in any share class of the Fund represents an investment in the same assets of the Fund. However, the ongoing fees and expenses for each share class may be different. The fees and expenses for the Fund are set forth in “Summary of Fund Expenses” above. Certain share class details are set forth in “Plan of Distribution” below. 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. However, separate votes are taken by each class of Common Shares on matters affecting an individual class of Common Shares. The Fund does not intend to hold annual meetings of shareholders. 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 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.

The Fund will make available unaudited reports at least semiannually and audited financial statements annually to all of its Common Shareholders.

The Common Shares are not, and are not expected to be, listed for trading on any national securities exchange nor is there expected to be any secondary trading market in the Common Shares.

The following provides information about the Fund’s outstanding Common Shares as of June 30, 2022:

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.

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%.

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.

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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 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 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 objectives 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. In connection with such borrowing, the Fund may be required to maintain minimum average balances with the lender or to pay a commitment or other fee to maintain a line of credit. Any such requirements will increase the cost of borrowing over the stated interest rate. Under the requirements of the 1940 Act, the Fund, immediately after issuing any such senior security representing indebtedness, must have an “asset coverage” of at least 300%. See “Leverage.” Certain types of debt may result in the Fund being subject to certain restrictions imposed by guidelines

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Description of Shares and Debt

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. Any debt will likely be ranked senior or equal to all other existing and future debt of the Fund.

Notwithstanding the foregoing, at any time, 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 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(s) 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 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.

Description of Shares and Debt

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Certain Provisions in the Declaration of Trust and By-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. 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 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. Approval of shareholders would not be required, however, 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 of the Declaration of Trust 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 overall effect of the provisions described above 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 with its management regarding the price to be paid and facilitating the continuity of the Fund’s investment objectives 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.

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 May 26, 2021, 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” state, 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

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Certain Provisions in the Declaration of Trust and By-Laws

By-laws of the Fund provide detailed procedures for the bringing of derivative actions by shareholders which are modeled on the substantive provisions of the Massachusetts corporate law derivative demand statute. The procedures are 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, these procedures:

These procedures 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 or a class of 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 securities of the Fund, other than such right, if any, as the 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.

Certain Provisions in the Declaration of Trust and By-Laws

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Conversion to Open-End Fund

The Board of Trustees may also from time to time consider submitting to the Fund’s shareholders a proposal to convert the Fund to an open-end investment company. In determining whether to exercise its sole discretion to submit this issue to shareholders, the Board of Trustees would consider all factors then relevant, including the size of the Fund, the extent to which shareholders have adequate liquidity thorough repurchase offers, the extent to which the Fund’s capital structure is leveraged and the possibility of re-leveraging (if any) and general market and economic conditions.

If previously approved by an affirmative vote of two-thirds of the Trustees, the Declaration of Trust requires the affirmative vote of a majority of the outstanding Common Shares to approve a conversion of the Fund from a closed-end investment company to an open-end investment company. In the event there are Preferred Shares outstanding, the affirmative vote of the holders of at least a majority of the outstanding Common Shares and Preferred Shares, voting as a single class, is required.

In the event of conversion to an open-end fund, any Preferred Shares would need to be redeemed and all or a portion of any borrowings may need to be repaid upon conversion to an open-end investment company. The Fund may charge sales or redemption fees upon conversion to an open-end fund. Shareholders of an open-end investment company may require the company to redeem their shares on any business day (except in certain circumstances as authorized by or under the 1940 Act) at their net asset value, less such redemption charge, if any, as might be in effect at the time of redemption, whereas the Fund currently makes only quarterly offers to repurchase its Common Shares (typically 5% per quarter), and shareholders do not have the right to otherwise have shares redeemed. Open-end companies are thus subject to more frequent periodic out-flows that can complicate portfolio management in comparison to the Fund. The Fund would expect to pay all such redemption requests in cash. If the Fund were converted to an open-end fund, it is likely that new Common Shares may be sold at NAV plus a sales load. In addition, to the extent the Fund is merged, consolidated or converted into an open-end registered investment company, it may no longer be able to use the same investment strategies. As a result, conversion to open-end status may require changes in the management of the Fund’s portfolio in order to meet the liquidity requirements applicable to open-end funds. Because portfolio securities may have to be liquidated to meet redemptions, conversion could affect the Fund’s ability to meet its investment objectives or to use certain investment policies and techniques described above. In particular, if the Fund were to operate as an open-end investment company, it would be required to hold a greater amount of liquid assets and would be more limited in the amount of leverage it could employ, which could impact the Fund’s performance. As described above, the Fund, like an open-end company, intends to engage in a continuous offering of its Common Shares.

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Conversion to Open-End Fund

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 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, a partnership or other entity treated as a pass-through entity for U.S. federal income tax purposes, U.S. stockholders 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 Stock as a position in a “straddle,” “hedge” or as part of a “constructive sale” for federal income tax purposes.

The discussions below and certain disclosure in the SAI provide general 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 below) and that you hold the Common Shares as a capital asset (generally, property held for investment). A U.S. Common Shareholder means a person (other than a partnership) that is for U.S. federal income tax purposes (i) an individual citizen or resident of the United States, (ii) a corporation (or any other entity treated as a corporation for U.S. federal income tax purposes) created or organized in or under the laws of the United States, any state thereof or the District of Columbia, (iii) an estate the income of which is subject to U.S. federal income taxation regardless of its source or (iv) a trust if it (1) is subject to the primary supervision of a court within the United States and one or more United States persons have the authority to control all substantial decisions of the trust or (2) has a valid election in effect under applicable United States Treasury regulations to be treated as a United States person.

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 (i) derive at least 90% of its annual gross income from certain kinds of investment income; (ii) meet certain asset diversification requirements at the end of each quarter, and (iii) distribute in each taxable year at least 90% of its net investment income (including net interest income and net short term capital gain) and net tax-exempt income. 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 recognized capital gains. The Fund primarily invests in securities whose income is exempt from regular U.S. federal income tax. Thus, substantially all of the Fund’s dividends paid to you should qualify as “exempt-interest dividends.” A shareholder treats an exempt-interest dividend as interest on state and local bonds exempt from regular U.S. federal income tax. U.S. Federal income tax law imposes an alternative minimum tax with respect to noncorporate taxpayers. Interest on certain municipal obligations, such as certain private activity bonds, is included as an item of tax preference in determining the amount of a taxpayer’s alternative minimum taxable income. To the extent that the Fund receives income from such municipal obligations, a portion of the dividends paid by the Fund, although exempt from regular U.S. federal income tax, will be taxable to shareholders to the extent that their tax liability is determined under the federal alternative minimum tax. The Fund will annually provide a report indicating the percentage of the Fund’s income attributable to municipal obligations subject to the federal alternative minimum tax.

In addition to exempt-interest dividends, the Fund also may distribute to its shareholders amounts that are treated as long-term capital gain or ordinary income (which may include short-term capital gains). These distributions may be subject to federal, state and local taxation, depending on a shareholder’s situation. Taxable distributions are taxable whether or not such distributions are reinvested in the Fund. Net capital gain distributions (the excess of net long-term capital gain over net short-term capital loss) 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%. The maximum rate applicable to ordinary income is 37%. Also, certain individuals, estates and trusts may be subject to an additional 3.8% tax on net investment income, which includes net capital gains. Net investment income does not include exempt-interest dividends. The Fund does not expect that any part of its distributions to shareholders from its investments will qualify for the dividends-received deduction available to corporate shareholders or as “qualified dividend income” to noncorporate shareholders.

As a RIC, the Fund will not be subject to U.S. federal income tax in any taxable year provided that it meets certain distribution requirements. As described in “Distributions” above, the Fund may retain for investment some (or all) of its net capital gain. If the Fund retains any net capital gain or investment company taxable income, it will be subject to tax at the 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, if subject to U.S. federal income tax on long-term capital gains, (i) will be required to include in income for U.S. federal income tax

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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 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 of the Fund 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.

The Internal Revenue Service (“IRS”) currently requires that a RIC that has two or more classes of stock allocate to each such class proportionate amounts of each type of its income (such as exempt interest, ordinary income and capital gains). Accordingly, if the Fund issues Preferred Shares, it will designate dividends made with respect to Common Shares and Preferred Shares as consisting of particular types of income (e.g., exempt interest, net capital gain and ordinary income) in accordance with the proportionate share of each class in the total dividends paid by the Fund during the year. 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 on December 31 of the year the distributions were declared. Each 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 redemption, sale or exchange of Common Shares normally will result in capital gain or loss to Common Shareholders. 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. The maximum rate applicable to ordinary income is 37%. An additional 3.8% tax may apply to certain individual, estate or trust shareholders’ taxable distributions and to any capital gains. Any loss on the sale of shares that have been held for six months or less will be disallowed to the extent of any distribution of exempt-interest dividends received with respect to such shares, unless the shares are of a RIC that declares exempt-interest dividends on a daily basis in an amount equal to at least 90% of its net tax-exempt interest and distributes such dividends on a monthly or more frequent basis. If a shareholder sells or otherwise disposes of 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 gain distributions received by the shareholder on such share. Any loss realized on a sale or exchange of shares of the Fund will be disallowed to the extent those shares of the Fund are replaced by other substantially identical shares of the Fund or other substantially identical stock or securities (including through reinvestment of dividends) within a period of 61 days beginning 30 days before and ending 30 days after the date of disposition of the original shares. In that event, the basis of the replacement shares of the Fund will be adjusted to reflect the disallowed loss.

Any interest on indebtedness incurred or continued to purchase or carry the Fund’s shares to which exempt-interest dividends are allocated is not deductible by shareholders. Under certain applicable rules, the purchase or ownership of shares may be considered to have been made with borrowed funds even though such funds are not directly used for the purchase or ownership of the shares. In addition, if you receive Social Security or certain railroad retirement benefits, you may be subject to U.S. federal income tax on a portion of such benefits as a result of receiving investment income, including exempt-interest dividends and other distributions paid by the Fund.

If the Fund invests in certain pay-in-kind securities, zero coupon securities, deferred interest securities or, in general, any other securities with original issue discount (or with market discount if the Fund elects to include market discount in income currently), the Fund must accrue income on such investments for each taxable year, which generally will be prior to the receipt of the corresponding cash payments. However, the Fund must distribute to shareholders, at least annually, all or substantially all of its investment company taxable income (determined without regard to the deduction for dividends paid), including such accrued income, to qualify as a RIC and to avoid federal income and excise taxes. Therefore, the Fund may have to dispose of its portfolio securities under disadvantageous circumstances to generate cash, or may have to leverage itself by borrowing the cash, to satisfy these distribution requirements.

The Fund may hold or acquire municipal obligations that are market discount bonds. A market discount bond is a security acquired in the secondary market at a price below its redemption value (or its adjusted issue price if it is also an original issue discount bond). If the Fund invests in a market discount bond, it will be required to treat any gain recognized on the disposition of such market discount bond as ordinary taxable income to the extent of the accrued market discount.

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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 IRS that they are subject to backup withholding. Backup withholding is not an additional tax. 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’s investment policies permit it to invest a portion of its assets in securities that generate income that is not exempt from U.S. federal or state income tax. The Fund may invest in other securities the U.S. federal income tax treatment of which is uncertain or subject to recharacterization 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 tax consequences to them of an investment in the Fund.

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Plan of Distribution

Nuveen Securities, LLC, an affiliate of Nuveen Fund Advisors (the “Distributor”), is the principal underwriter and distributor of the Fund’s Common Shares pursuant to a distribution agreement (the “Distribution Agreement”) with the Fund. The Distributor, located at 333 West Wacker Drive, Chicago, Illinois 60606, is a broker-dealer registered with the SEC and is a member of the Financial Industry Regulatory Authority (“FINRA”).

The Distributor acts as the distributor of Common Shares for the Fund on a best efforts basis pursuant to the terms of the Distribution Agreement. The Distributor is not obligated to sell any specific amount of Common Shares of the Fund.

Common Shares of the Fund will be continuously offered through the Distributor. As discussed below, the Fund may authorize one or more intermediaries (e.g., broker-dealers and other financial firms) to receive orders on its behalf. The Common Shares will be offered at NAV per share calculated each regular business day. Please see “Net Asset Value” above.

The Fund and the Distributor will have the sole right to accept orders to purchase Common Shares and reserve the right to reject any order in whole or in part.

No market currently exists for the Fund’s Common Shares. The Fund will not list its Common Shares for trading on any securities exchange. There is currently no secondary market for the Fund’s Common Shares and the Fund does not anticipate that a secondary market will develop for its Common Shares. Neither Nuveen Fund Advisors nor the Distributor intends to make a market in the Fund’s Common Shares.

The Fund has agreed to indemnify the Distributor and certain of the Distributor’s affiliates against certain liabilities, including certain liabilities arising under the Securities Act, as amended. To the extent consistent with applicable law, the Distributor has agreed to indemnify the Fund and each Trustee against certain liabilities under the 1933 Act and in connection with the services rendered to the Fund.

Share Classes

The Fund has adopted an Amended and Restated Multi-Class Plan in accordance with Rule 18f-3 under the 1940 Act (the “Multi-Class Plan”). Although the Fund is not an open-end investment company, it has undertaken to comply with the terms of Rule 18f-3 as a condition of an exemptive order under the 1940 Act which permits it to have, among other things, a multi-class structure. Under the Multi-Class Plan, Common Shares of each class of the Fund represent an equal pro rata interest in the Fund and, generally, have identical voting, distribution, liquidation, and other rights, preferences, powers, restrictions, limitations, qualifications and terms and conditions, except that: (a) each class has a different designation; (b) each class of Common Shares bears any class-specific expenses; and (c) each class shall have separate voting rights on any matter submitted to shareholders in which the interests of one class differ from the interests of any other class, and shall have exclusive voting rights on any matter submitted to shareholders that relates solely to that class.

Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares of the Fund are offered in this prospectus. Each share class represents an investment in the same portfolio of investments, but each class has its own expense structure and arrangements for shareholder services or distribution, which allows you to choose the class that best fits your situation and eligibility requirements.

Class I Common Shares are generally offered for investment to investors such as pension and profit sharing plans, employee benefit trusts, endowments, foundations, corporations and institutions. Class I Common Shares may also be offered to investors participating in fee-based advisory programs that have (or whose trading agents have) an agreement with the Distributor to investors that are clients of certain registered investment advisers that have an agreement with the Distributor if it so deems appropriate. Class I Common Shares are also offered to the Trustees and certain employees and former partners of Nuveen and their extended family members. For these purposes, “extended family members” shall include such person’s spouse or domestic partner, as recognized by applicable state law, children, siblings, current brother/sister-in-laws, parents, and current father/mother-in-laws. Further information about Common Shares that are offered in conjunction with a retirement plan can be obtained directly from such retirement plan.

Class A1 Common Shares are primarily offered and sold to retail investors by broker-dealers which are members of FINRA and which have agreements with the Distributor, but may be available through other financial firms, including banks and trust companies and to specified benefit plans and other retirement accounts.

Class A2 Common Shares are primarily offered and sold to retail investors by broker-dealers which are members of FINRA and which have agreements with the Distributor, but may be available through other financial firms, including banks and trust companies and to specified benefit plans and other retirement accounts.

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Plan of Distribution

Intra-Fund Share Common Class Conversions

Conversions at the Request of a Financial Intermediary. Subject to the conditions set forth in this paragraph, Common Shares of one class of the Fund may be converted into (i.e., reclassified as) Common Shares of a different class of the Fund at the request of a shareholder’s financial intermediary. To qualify for a conversion, the shareholder must satisfy the conditions for investing in the class into which the conversion is sought (as described in this prospectus and the SAI). Also, Common Shares are not eligible to be converted until any applicable contingent deferred sales charge (“CDSC”) period has expired. No sales charge will be imposed on the conversion of Common Shares. The financial intermediary making the conversion request must submit the request in writing. In addition, the financial intermediary or other responsible party must process and report the transaction as a conversion. The value of the Common Shares received during a conversion will be based on the relative NAV of the Common Shares being converted and the Common Shares received as a result of the conversion. It generally is expected that conversions will not result in taxable gain or loss.

Class A1 and Class A2 Distribution and Service Plan

The Fund has adopted an Amended and Restated Distribution and Service Plan (the “Distribution and Service Plan”) for Class A1 Common Shares and Class A2 Common Shares of the Fund. The Distribution and Service Plan operates in a manner consistent with Rule 12b-1 under the 1940 Act, which regulates the manner in which an open-end investment company may directly or indirectly bear the expenses of distributing its Common Shares. Although the Fund is not an open-end investment company, it has undertaken to comply with the terms of Rule 12b-1 as a condition of an exemptive order under the 1940 Act which permits it to, among other things, impose distribution and shareholder servicing fees. The Distribution and Service Plan permits the Fund to compensate the Distributor for using reasonable efforts to secure purchasers of the Fund’s Common Shares, including by providing continuing information and investment services and/or by making payments to certain authorized institutions in connection with the sale of Common Shares or servicing of shareholder accounts. Most or all of the distribution and/or service fees are paid to financial firms through which Shareholders may purchase or hold Class A1 Common Shares and/or Class A2 Common Shares. Because these fees are paid out of the Fund’s Class A1 Common Share assets and Class A2 Common Share assets, respectively, on an ongoing basis, over time they will increase the cost of an investment in Class A1 Common Shares and Class A2 Common Shares and may cost you more than paying other types of sales charges. The maximum annual rates at which the distribution and/or servicing fees may be paid under the Distribution and Service Plan for Class A1 Common Shares (calculated as a percentage of the Fund’s average daily net assets attributable to the Class A1 Common Shares) is 0.75%. The maximum annual rates at which the distribution and/or servicing fees may be paid under the Distribution and Service Plan for Class A2 Common Shares (calculated as a percentage of the Fund’s average daily net assets attributable to the Class A2 Common Shares) is 0.50%.

Purchasing Shares

The following section provides basic information about how to purchase Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares of the Fund.

The Fund’s Common Shares are offered for sale in the U.S. and are not widely available outside the United States. For purposes of this policy, a U.S. resident is defined as an account with (i) a U.S. address of record and (ii) all account owners residing in the U.S. at the time of sale. Non-U.S. residents should be aware that U.S. withholding and estate taxes and certain U.S. tax reporting requirements may apply to any investment in the Fund. Eligible investors may purchase Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares in the following ways:

Through your broker-dealer or other financial firm. The Fund’s Common Shares may in the future be available through broker-dealers, banks, trust companies, insurance companies and other financial firms. Your broker-dealer or other financial firm may establish different minimum investment requirements than the Fund and may also independently charge you transaction fees and additional amounts (which may vary) in return for its services, which will reduce your return. Shares you purchase through your broker-dealer or other financial firm will normally be held in your account with that firm.

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Through the Distributor. You should discuss your investment with your financial advisor before you make a purchase to be sure the Fund is appropriate for you. If you do not list a financial advisor and his/her brokerage firm on the Account Application, the Distributor is designated as the broker of record, but solely for purposes of acting as your agent to purchase shares through any financial intermediary that has a sales agreement with the Distributor. The Distributor acts as an agent for the Fund to work with financial intermediaries that buy and sell Common Shares of the Fund on behalf of their clients. Generally, the Distributor does not sell Fund Common Shares directly to investors. Initial purchases of Fund Shares may be made through any financial intermediary that has a sales agreement with the Distributor. Unless you are investing in the Fund through a retirement and benefit plan, fee-based program or other financial intermediary, you and your investment professional may fill out the application and send it to the Fund at the address below. To open an account through a retirement and benefit plan, fee-based program or other type of financial intermediary, you should contact your financial intermediary for instructions on opening an account.

Overnight Mail:

Nuveen Enhanced High Yield Municipal Bond Fund

C/O DST Systems, Inc.

430 W. 7th Street

Kansas City, MO 64105

Regular Mail:

Nuveen Enhanced High Yield Municipal Bond Fund

C/O DST Systems, Inc.

PO Box 219307

Kansas City, MO 64121-9097

Please do not send account applications or purchase or redemption orders to Nuveen’s offices in Chicago, IL.

For inquiries, please call DST Call Center: (833) 688-3368 (8:00 a.m. – 5:00 p.m. CST).

In order to receive the current day’s NAV, order instructions must be received in good order prior to the close of regular trading on the NYSE (ordinarily 4:00 p.m., Eastern time) (“NYSE Close”). Instructions must include the name and signature of an appropriate person designated on the Account Application (“Authorized Person”), account name, account number, name of the Fund and dollar amount. Failure to send the accompanying payment on the same day may result in the cancellation of the order. Payments received without order instructions could result in a processing delay.

Investment Minimums

Class I Common Shares. The following investment minimums apply for purchases of Class I Common Shares:

Class A1 Common Shares. The following investment minimums apply for purchases of Class A1 Common Shares:

Class A2 Common Shares. The following investment minimums apply for purchases of Class A2 Common Shares:

The initial investment minimums may be modified for certain financial firms that submit orders on behalf of their customers. The Fund or the Distributor may lower or waive the minimum initial investment for certain categories of investors at their discretion. The initial investment minimums may also be modified for the Trustees and certain employees and former partners of Nuveen and their extended family members. For these purposes, “extended family members” shall include such person’s spouse or domestic partner, as recognized by applicable state law, children, siblings, current brother/sister-in-laws, parents, and current father/mother-in- laws. Please see the Statement of Additional Information for details.

Class I Common Shares are available for purchase at a modified minimum investment amount by clients of financial intermediaries who charge such clients an ongoing fee for advisory, investment, consulting or related services. Such clients may include individuals, corporations, endowments and foundations. The minimum initial investment for such clients is $100,000, but this minimum will be lowered to $25,000 for clients of financial intermediaries that have accounts holding Class I Common Shares with an aggregate value of at least $100,000. The Distributor may also lower the minimum to $25,000 for clients of financial intermediaries anticipated to reach this Class I Common Shares holdings level.

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Plan of Distribution

Additionally, Class I Common Shares are also available for purchase by family offices and their clients. A family office is a company that provides certain financial and other services to a high net worth family or families. The minimum initial investment for family offices and their clients is $100,000, but this minimum will be lowered to $25,000 for clients of family offices that have accounts holding Class I Common Shares with an aggregate value of at least $100,000.

Class I Common Shares also are available for purchase, with no minimum initial investment, by certain other categories of investors, including members of the Board of Trustees of the Fund and certain employees of Nuveen, LLC, its affiliates and extended family members of such individuals, as described in the “Purchase of Class I Common Shares by Eligible Investors” section in the SAI.

The Fund and the Distributor each reserves the right, in its sole discretion, to suspend the offering of shares of the Fund or to reject any purchase order, in whole or in part, when, in the judgment of management, such suspension or rejection is in the best interests of the Fund.

In the interest of economy and convenience, certificates for shares will not be issued.

Sales Charge—Class I Common Shares

Class I Common Shares are not subject to a sales charge.

Sales Charge—Class A1 Common Shares

This section includes important information about sales charge reduction programs available to investors in Class A1 Common Shares of the Fund and describes information or records you may need to provide to the Distributor or your financial firm in order to be eligible for sales charge reduction programs.

Unless you are eligible for a waiver, the public offering price you pay when you buy Class A1 Common Shares of the Fund is the NAV of the Shares plus an initial sales charge. The initial sales charge varies depending upon the size of your purchase, as set forth below. You do not pay a sales charge on the Fund’s distributions or dividends you reinvest in additional Class A1 Common Shares. For investors investing in Class A1 Common Shares of the Fund through a financial intermediary, it is the responsibility of the financial intermediary to ensure that you obtain the proper “breakpoint” discount.

Because the offering price is calculated to two decimal places, the dollar amount of the sales charge as a percentage of the offering price and your net amount invested for any particular purchase of Fund Shares may be higher or lower depending on whether downward or upward rounding was required during the calculation process.

Class A1 Common Shares are subject to the following sales charge:

Investors in the Fund may reduce or eliminate sales charges applicable to purchases of Class A1 Common Shares through utilization of the Right of Accumulation, Letter of Intent or Reinstatement Privilege. These programs (described below) will apply to purchases of Class A1 Common Shares of the Fund that are combined with purchases of shares of other closed-end interval funds that Nuveen sponsors in the future (collectively, “Eligible Funds”), which offer Class A1 Common Shares. Eligible Funds include open-end funds sponsored by Nuveen.

CDSC. If any Class A1 Common Shares for which you did not pay a sales charge are repurchased before the first day of the month in which the one-year anniversary of your initial purchase falls, a CDSC of 1.50% normally will be collected.

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The CDSC is not charged on Class A1 Common Shares acquired through reinvestment of dividends or capital gain distributions and is charged on the original purchase cost or the NAV of the Class A1 Common Shares at the time they are repurchased, whichever is lower. In addition, repayment of loans under certain retirement and benefit plans will constitute new sales for purposes of assessing the CDSC. To minimize the amount of any CDSC, the Fund repurchases Shares in the following order:

Investors in the Fund may reduce or eliminate sales charges applicable to purchases of Class A1 Common Shares through utilization of the Rights of Accumulation, Letter of Intention or Reinvestment Privilege. These programs will apply to purchases of other Class A1 Common Shares of the Fund that are combined with purchases of shares of closed-end interval funds that Nuveen may sponsor in the future which offer Class A1 Common Shares.

Sales Charge Reductions and Waivers

Please inform the Fund, if you have direct account privileges with the Fund, or your financial intermediary at the time of your purchase of Fund Class A1 Common Shares if you believe you qualify for a reduced front-end sales charge.

Reducing Your Class A1 Common Share Front-End Sales Charge. You may purchase Class A1 Common Shares at a discount if you qualify under the circumstances outlined below. To receive a reduced front-end sales charge, you must let the Fund, if you have direct account privileges with the Fund, or your financial intermediary know at the time of your purchase of Fund Class A1 Common Shares that you believe you qualify for a discount. If you or a related party have holdings of Eligible Funds in other accounts with your financial intermediary or with other financial intermediaries that may be combined with your current purchase in determining the sales charge as described below, you must let the Fund, if you have direct account privileges with the Fund, or your financial intermediary know. Investors should consult with their financial intermediary about the calculation of the sales charge and any additional fees or charges their financial intermediary might impose on Class A1 Common Shares.

You may be asked to provide supporting account statements or other information to allow us or your financial intermediary to verify your eligibility for a discount. If you have direct account privileges with the Fund, or your financial intermediary do not notify the Fund or provide the requested information, you may not receive the reduced sales charge for which you otherwise qualify. Class A1 Common Shares may be purchased at a discount if you qualify under any of the following conditions:

To the extent that your financial intermediary is able to do so, the value of shares of Eligible Funds determined for the purpose of reducing the sales charge of a new purchase under the Rights of Accumulation will be calculated at the higher of: (1) the aggregate current maximum offering price of your existing shares of Eligible Funds; or (2) the aggregate amount you invested in such Class A1 Common Shares (including dividend reinvestments but excluding capital appreciation) less any redemptions. You should retain any information and account records necessary to substantiate the historical amounts you and any related Purchasers have invested in Eligible Funds. You must inform the Fund and/or your financial intermediary at the time of purchase if you believe your purchase qualifies for a reduced sales charge and you may be requested to provide documentation of your holdings in order to verify your eligibility as financial intermediaries may have different policies for determining the aggregated holdings of Eligible Funds by related Purchasers. If you do not do so, you may not receive all sales charge reductions for which you are eligible.

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Plan of Distribution

Purchaser. A Purchaser includes: (1) an individual; (2) an individual, his or her spouse, domestic partner, and children under the age of 21; (3) retirement and benefit plans including a 401(k) plan, profit-sharing plan, money purchase plan, defined benefit plan, and 457(b) plan sponsored by a governmental entity, non-profit organization, school district or church to which employer contributions are made, as well as SIMPLE IRA plans and SEP-IRA plans; or (4) a trustee or other fiduciary purchasing Class A1 Common Shares for a single trust, estate or single fiduciary account. An individual may include under item (1) his or her holdings in Eligible Funds as described below in IRAs, as a sole participant of a retirement and benefit plan sponsored by the individual’s business, and as a participant in a 403(b) plan to which only pre-tax salary deferrals are made. An individual, his or her spouse, and domestic partner may include under item (2) their holdings in IRAs, and as the sole participants in retirement and benefit plans sponsored by a business owned by either or both of them. A retirement and benefit plan under item (3) includes all qualified retirement and benefit plans of a single employer and its consolidated subsidiaries, and all qualified retirement and benefit plans of multiple employers registered in the name of a single bank trustee.

Front-End Sales Charge Waivers. Class A1 Common Shares may be purchased without a front-end sales charge (at NAV) under any of the following conditions:

CDSC Waivers. The CDSC will not be assessed on the redemption of Class A1 Common Shares upon the death of a shareholder or eligible mandatory distributions under the Code. Documentation may be required and some limitations may apply.

Sales Charge Waivers on Transfers between Accounts. Class A1 Common Shares of any Nuveen Fund can be purchased at NAV under the following circumstances:

A CDSC will not be imposed at the time of the transaction under such circumstances; instead, the date on which such Class A1 Common Shares were initially purchased will be used to calculate any applicable CDSC when the Class A1 Common Shares are redeemed. You must inform the Fund and/or your financial intermediary at the time of purchase if you believe your purchase qualifies for a reduced sales charge and you may be requested to provide documentation of your holdings in order to verify your eligibility. If you do not do so, you may not receive all sales charge reductions for which you are eligible.

Reinvestment Privilege. If you redeem Class A1 Common Shares of a Nuveen Fund, you may reinvest some or all of the proceeds in the same class of any Eligible Fund on or before the 90th day after the redemption without a sales charge unless the reinvestment would be prohibited by that Nuveen Fund’s frequent trading policy (if any). Special tax rules may apply. If you paid a CDSC when you redeemed your Class A1 Common Shares, you will be credited with the amount of the CDSC. All accounts involved must have the same registration. This privilege does not apply to purchases made through Invest-A-Matic or other automatic investment services. The reinvestment privilege only applies to your Fund’s Class A1 Common Shares if you previously paid a front-end sales charge in connection with your purchase of such Class A1 Common Shares.

Sales Charge—Class A2 Common Shares

Class A2 Common Shares are not subject to a sales charge.

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Financial Intermediary Compensation

As part of a plan for distributing Common Shares, authorized financial intermediaries that sell the Fund’s Common Shares and service its shareholder accounts receive sales and service compensation. Additionally, authorized financial intermediaries may charge a fee to effect transactions in Fund Common Shares.

Sales compensation originates from sales charges that are paid directly by shareholders and distribution fees that are paid by the Fund out of share class assets. Service compensation originates from service fees. The Fund accrues the distribution and service fees daily at annual rates shown in the ‘‘Fees and Expenses’’ table above based upon average daily net assets. The portion of the distribution and service fees for each share class is as follows:

The Distributor may pay distribution and service fees to authorized financial intermediaries or use the fees for other distribution purposes, including revenue sharing. The amounts paid by the Fund need not be directly related to expenses. If the Distributor’s actual expenses exceed the fee paid to it, the Fund will not have to pay more than that fee. Conversely, if the Distributor’s expenses are less than the fee it receives, the Distributor will keep the excess amount of the fee.

Sales Activities. The Fund may use distribution fees to pay authorized financial intermediaries to finance any activity that primarily is intended to result in the sale of Common Shares. The Distributor uses its portion of the distribution fees attributable to the Common Shares of a particular class for activities that primarily are intended to result in the sale of Common Shares of such class. These activities include, but are not limited to, printing of prospectuses and statements of additional information and reports for anyone other than existing shareholders, preparation and distribution of advertising and sales material, expenses of organizing and conducting sales seminars, additional payments to authorized financial intermediaries, maintenance of shareholder accounts, the cost necessary to provide distribution-related services or personnel, travel, office expenses, equipment and other allocable overhead.

Service Activities. The Distributor may pay service fees to authorized financial intermediaries for any activity that primarily is intended to result in personal service and/or the maintenance of shareholder accounts or certain retirement and benefit plans. Any portion of the service fees paid to the Distributor will be used to service and maintain shareholder accounts.

Dealer Concessions on Class A1 Purchases With a Front-End Sales Charge. See “Sales Charge – Class A1 Common Shares” for more information.

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Plan of Distribution

Dealer Concessions Without a Front-End Sales Charge. For purchases of Class A1 Common Shares, the Distributor may pay dealers distribution-related compensation (i.e., concessions) according to the schedule set forth below (which may be subject to a CDSC).

Dealers receive concessions described below on purchases made within a 12-month period beginning with the first NAV purchase of Class A1 Common Shares for the account. The concession rate resets on each anniversary date of the initial NAV purchase, provided that the account continues to qualify for treatment at NAV.

Dealer Concession Schedule – Class A1 Common Shares for Certain Purchases Without a Front-End Sales Charge

The dealer concession received is based on the amount of the Class A1 Common Shares investment as follows:

Revenue Sharing and Other Payments to Dealers and Financial Intermediaries. Nuveen (the term ‘‘Nuveen’’ in this section refers to Nuveen Fund Advisors and also refers to the Distributor unless the context requires otherwise) may make payments to certain financial intermediaries for marketing and distribution support activities. Nuveen makes these payments, at its own expense, out of its own resources (including revenues from advisory fees and distribution and service fees), and without any additional costs to the Fund or the Fund’s Shareholders.

In general, these payments are intended to compensate or reimburse financial intermediary firms for certain activities, including: promotion of sales of Fund Common Shares, such as placing the Nuveen Family of Funds on a preferred list of fund families; making Fund Common Shares available on certain platforms, programs, or trading venues; educating a financial intermediary firm’s sales force about the Fund; providing services to shareholders; and various other promotional efforts and/or costs. The payments made to financial intermediaries may be used to cover costs and expenses related to these promotional efforts, including travel, lodging, entertainment, and meals, among other things. In addition, Nuveen may provide payments to a financial intermediary in connection with Nuveen’s participation in or support of conferences and other events sponsored, hosted, or organized by the financial intermediary. The aggregate amount of these payments may be substantial and may exceed the actual costs incurred by the financial intermediary in engaging in these promotional activities or services and the financial intermediary firm may realize a profit in connection with such activities or services.

Nuveen may make such payments on a fixed or variable basis based on Fund sales, assets, transactions processed, and/or accounts attributable to a financial intermediary, among other factors. Nuveen determines the amount of these payments in its sole discretion. In doing so, Nuveen may consider a number of factors, including: a financial intermediary’s sales, assets, and redemption rates; the nature and quality of any shareholder services provided by the financial intermediary; the quality and depth of the financial intermediary’s existing business relationships with Nuveen; the expected potential to expand such relationships; and the financial intermediary’s anticipated growth prospects. Not all financial intermediaries receive revenue sharing payments and the amount of revenue sharing payments may vary for different financial intermediaries. Depending on the particular arrangement, Nuveen may choose not to make payments in relation to certain classes of shares of the Fund.

In some circumstances, these payments may create an incentive for a broker-dealer or its investment professionals to recommend or sell Fund Common Shares to you. Nuveen may benefit from these payments to the extent the broker-dealers sell more Fund Common Shares or retain more Fund Common Shares in their clients’ accounts because Nuveen receives greater management and other fees as Fund assets increase. For more specific information about these payments, including revenue sharing arrangements, made to your broker-dealer or other financial intermediary and the conflicts of interest that may arise from such arrangements, please contact your investment professional.

Payments for Recordkeeping, Networking, and Other Services. In addition to the payments from Nuveen Fund Advisors or the Distributor described above, from time to time, Nuveen Fund Advisors and the Distributor may have other relationships with financial intermediaries relating to the provision of services to the Fund, such as providing omnibus account services or executing portfolio transactions for the Fund. The Fund generally may pay recordkeeping fees for services provided to plans where the account is a plan- level or fund-level omnibus account and plan participants have the ability to determine their investments in particular mutual funds. If your financial intermediary provides these services, Nuveen Fund Advisors or the Fund may compensate the financial intermediary for these services. In addition, your financial intermediary may have other relationships with Nuveen Fund Advisors or the Distributor that are not related to the Fund.

For example, the Fund may enter into arrangements with and pay fees to financial intermediaries that provide recordkeeping or other subadministrative services to certain groups of investors in the Fund including participants in

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retirement and benefit plans, investors in fund advisory programs, and clients of financial intermediaries that operate in an omnibus environment (collectively, “Investors”). The recordkeeping services typically include: (a) establishing and maintaining Investor accounts and records; (b) recording Investor account balances and changes thereto; (c) arranging for the wiring of funds; (d) providing statements to Investors; (e) furnishing proxy materials, periodic Fund reports, prospectuses and other communications to Investors as required; (f) transmitting Investor transaction information; and (g) providing information in order to assist the Fund in its compliance with state securities laws. The fees that the Fund pays are designed to compensate financial intermediaries for such services.

The Fund also may pay fees to broker-dealers for networking services. Networking services may include but are not limited to:

The networking fees that the Fund pay to broker-dealers normally result in reduced fees paid by the Fund to the transfer agent, which otherwise would provide these services.

Financial intermediaries may charge additional fees or commissions other than those disclosed in this prospectus, such as a transaction based fee or other fee for its service, and may categorize and disclose these arrangements differently than described in the discussion above and in the SAI. You may ask your financial intermediary about any payments it receives from Nuveen or the Fund, as well as about fees and/or commissions it charges.

Signature Validation

When a signature validation is called for, a Medallion signature guarantee or Signature validation program (SVP) stamp may be required. A Medallion signature guarantee is intended to provide signature validation for transactions considered financial in nature, and an SVP stamp is intended to provide signature validation for transactions non-financial in nature. In certain situations, a notarized signature may be used instead of a Medallion signature guarantee or an SVP stamp. A Medallion signature guarantee or SVP stamp may be obtained from a domestic bank or trust company, broker, dealer, clearing agency, savings association or other financial institution which is participating in a Medallion program or Signature validation program recognized by the Securities Transfer Association. When a Medallion signature guarantee or SVP stamp is required, signature validations from financial institutions which are not participating in one of these programs will not be accepted. Please note that financial institutions participating in a recognized Medallion program may still be ineligible to provide a signature validation for transactions of greater than a specified dollar amount. The Fund may change the signature validation requirements from time to time upon notice to Common Shareholders, which may be given by means of a new or supplemented prospectus. Shareholders should contact the Fund for additional details regarding the Fund’s signature validation requirements.

In addition, corporations, trusts, and other institutional organizations are required to furnish evidence of the authority of the persons designated on the Account Application to effect transactions for the organization.

Acceptance and Timing of Purchase Orders

A purchase order received by the Fund or its designee prior to the NYSE Close, on a day the Fund is open for business, together with payment made in one of the ways described above will be effected at that day’s NAV plus any applicable sales charge. An order received after the NYSE Close will be effected at the NAV determined on the next business day. However, orders received by certain retirement plans and other financial firms on a business day prior to the NYSE Close and communicated to the Fund or its designee prior to such time as agreed upon by the Fund and financial firm will be effected at the NAV determined on the business day the order was received by the financial firm. The Fund is “open for business” on each day the NYSE is open for trading, which excludes the following holidays: New Year’s Day, Martin Luther King, Jr. Day, Washington’s Birthday, Good Friday, Memorial Day, Juneteenth National Independence Day, Independence Day, Labor Day, Thanksgiving Day and Christmas Day. If the NYSE is closed due to weather or other extenuating circumstances on a day it would typically be open for business, the Fund reserves the right to treat such day as a Business Day and accept purchase orders in accordance with applicable law. The Fund reserves the right to close if the primary trading markets of the Fund’s portfolio instruments are closed and the Fund’s management believes that there is not an adequate market to meet purchase requests. On any business day when the Securities Industry and Financial Markets Association (“SIFMA”) recommends that the securities markets close trading early, the Fund may close trading early. Purchase orders will be accepted only on days which the Fund is open for business.

The Fund and the Distributor each reserves the right, in its sole discretion, to accept or reject any order for purchase of Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The sale of Common Shares may be

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Plan of Distribution

suspended during any period in which the NYSE is closed other than weekends or holidays, or if permitted by the rules of the SEC, when trading on the NYSE is restricted or during an emergency which makes it impracticable for the Fund to dispose of its securities or to determine fairly the value of its net assets, or during any other period as permitted by the SEC for the protection of investors.

Verification of Identity

To help the federal government combat the funding of terrorism and money laundering activities, federal law requires all financial institutions to obtain, verify and record information that identifies each person that opens a new account, and to determine whether such person’s name appears on government lists of known or suspected terrorists and terrorist organizations. As a result, the Fund must obtain the following information for each person that opens a new account:

1. Name;

2. Date of birth (for individuals);

3. Residential or business street address; and

4. Social security number, taxpayer identification number, or other identifying number.

Federal law prohibits the Fund and other financial institutions from opening a new account unless they receive the minimum identifying information listed above.

Individuals may also be asked for a copy of their driver’s license, passport or other identifying document in order to verify their identity. In addition, it may be necessary to verify an individual’s identity by cross-referencing the identification information with a consumer report or other electronic database. Additional information may be required to open accounts for corporations and other entities.

After an account is opened, the Fund may restrict your ability to purchase additional Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares until your identity is verified. The Fund also may close your account and redeem your shares or take other appropriate action if it is unable to verify your identity within a reasonable time.

Plan of Distribution

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Periodic Repurchase Offers

The Fund is a closed-end interval fund and, to provide liquidity and the ability to receive NAV on a disposition of at least a portion of your Common Shares, makes periodic offers to repurchase Common Shares. No shareholder will have the right to require the Fund to repurchase its Common Shares, except as permitted by the Fund’s interval structure. No public market for the Common Shares exists, and none is expected to develop in the future. Consequently, Common Shareholders generally will not be able to liquidate their investment other than as a result of repurchases of their Common Shares by the Fund, and then only on a limited basis.

The Fund has adopted, pursuant to Rule 23c-3 under the 1940 Act, a fundamental policy, which cannot be changed without shareholder approval, requiring the Fund to offer to repurchase at least 5% and up to 25% of its Common Shares at NAV on a regular schedule. Although the policy permits repurchases of between 5% and 25% of the Fund’s outstanding Common Shares, for each quarterly repurchase offer, the Fund currently expects to offer to repurchase 7.5% of the Fund’s outstanding Common Shares at NAV subject to approval of the Board of Trustees. The schedule requires the Fund to make repurchase offers every three months.

Repurchase Dates

The Fund will make quarterly repurchase offers every three months. As discussed below, the date on which the repurchase price for Common Shares is determined will occur no later than the 14th day after the Repurchase Request Deadline (or the next business day, if the 14th day is not a business day).

Repurchase Request Deadline

The date by which shareholders wishing to tender Common Shares for repurchase must respond to the repurchase offer typically falls approximately seven days before the Repurchase Pricing Date (defined below). The Repurchase Request Deadline will generally be the same date as the Repurchase Pricing Date. When a repurchase offer commences, the Fund sends, at least 21 days before the Repurchase Request Deadline, written notice to each Common Shareholder setting forth, among other things:

This notice may be included in a shareholder report or other Fund document. The Repurchase Request Deadline will be strictly observed. If a Common Shareholder fails to submit a repurchase request in good order by the Repurchase Request Deadline, the shareholder will be unable to liquidate Common Shares until a subsequent repurchase offer, and will have to resubmit a request in the next repurchase offer. Shareholders may withdraw or change a repurchase request with a proper instruction submitted in good form at any point before the Repurchase Request Deadline.

Determination of Repurchase Price and Payment for Shares

The Repurchase Pricing Date will occur no later than the 14th day after the Repurchase Request Deadline (or the next business day, if the 14th day is not a business day). The Fund expects to distribute payment to Common Shareholders between one and three (3) business days after the Repurchase Pricing Date and will distribute such payment no later than seven (7) calendar days after such date. The Repurchase Request Deadline will generally be the same date as the Repurchase Pricing Date. The Fund’s NAV per share may change materially between the date a repurchase offer is mailed and the Repurchase Request Deadline, and it may also change materially between the Repurchase Request

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Periodic Repurchase Offers

Deadline and Repurchase Pricing Date. The method by which the Fund calculates NAV is discussed below under “Net Asset Value.” During the period an offer to repurchase is open, shareholders may obtain the current NAV by visiting www.nuveen.com or calling the Fund’s transfer agent at (833) 688-3368.

Repurchase Fee

The Fund does not currently charge a repurchase fee. However, the Fund may charge a repurchase fee of up to 2.00% of the repurchase proceeds, which the Fund would retain to help offset non-de minimis estimated costs related to the repurchase incurred by the Fund, directly or indirectly, as a result of repurchasing Common Shares, thus allocating estimated transaction costs to the shareholder whose Common Shares are being repurchased. The Fund may introduce, or modify the amount of, a repurchase fee at any time. The Fund may also waive or reduce the repurchase fee if Nuveen Fund Advisors determines that the repurchase is offset by a corresponding purchase or if for other reasons the Fund will not incur transaction costs or will incur reduced transaction costs.

Your financial adviser or other financial intermediary may charge service fees for handling Common Share repurchases. In such cases, there may be fees imposed by the intermediary on different terms (and subject to different exceptions) than those set forth above. Please consult your financial adviser or other financial intermediary for details.

Suspension or Postponement of Repurchase Offers

The Fund may suspend or postpone a repurchase offer in limited circumstances set forth in Rule 23c-3 under the 1940 Act, as described below, but only with the approval of a majority of the Board of Trustees, including a majority of Trustees who are not “interested persons” of the Fund, as defined in the 1940 Act. The Fund may suspend or postpone a repurchase offer only: (1) if making or effecting the repurchase offer would cause the Fund to lose its status as a regulated investment company under Subchapter M of the Code; (2) for any period during which the NYSE or any other market in which the securities owned by the Fund are principally traded is closed, other than customary weekend and holiday closings, or during which trading in such market is restricted; (3) for any period during which an emergency exists as a result of which disposal by the Fund of securities owned by it is not reasonably practicable, or during which it is not reasonably practicable for the Fund fairly to determine the value of its net assets; or (4) for such other periods as the SEC may by order permit for the protection of shareholders of the Fund.

Oversubscribed Repurchase Offers

There is no minimum number of Common Shares that must be tendered before the Fund will honor repurchase requests. However, the Board of Trustees sets for each repurchase offer a maximum percentage of Common Shares that may be repurchased by the Fund, which is currently expected to be 7.5% of the Fund’s outstanding Common Shares. In the event a repurchase offer by the Fund is oversubscribed, the Fund may repurchase, but is not required to repurchase, additional Common Shares up to a maximum amount of 2% of the outstanding Common Shares of the Fund. If shareholders tender an amount of Common Shares greater than that which the Fund intends to repurchase, the Fund will repurchase the Common Shares tendered on a pro rata basis.

If any Common Shares that you wish to tender to the Fund are not repurchased because of proration, you will have to wait until the next repurchase offer and resubmit a new repurchase request, and your repurchase request will not be given any priority over other shareholders’ requests. Thus, there is a risk that the Fund may not purchase all of the Common Shares you wish to have repurchased in a given repurchase offer or in any subsequent repurchase offer. In anticipation of the possibility of proration, some shareholders may tender more Common Shares than they wish to have repurchased in a particular quarter, increasing the likelihood of proration.

There is no assurance that you will be able to tender your Common Shares when or in the amount that you desire.

Consequences of Repurchase Offers

From the time the Fund distributes or publishes each repurchase offer notification until the Repurchase Pricing Date for that offer, the Fund must maintain liquid assets at least equal to the percentage of its Common Shares subject to the repurchase offer. For this purpose, “liquid assets” means assets that may be sold or otherwise disposed of in the ordinary course of business, at approximately the price at which the Fund values them, within the period between the Repurchase Request Deadline and the repurchase payment deadline, or which mature by the repurchase payment deadline. The Fund is also permitted to borrow up to the maximum extent permitted under the 1940 Act to meet repurchase requests.

If the Fund borrows to finance repurchases, interest on that borrowing will negatively affect shareholders who do not tender their Common Shares by increasing the Fund’s expenses and reducing any net investment income. There is no assurance that the Fund will be able sell a significant amount of additional Common Shares so as to mitigate these effects.

Periodic Repurchase Offers

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These and other possible risks associated with the Fund’s repurchase offers are described under “Risks—Fund Level Risks—Repurchase Offers Risk” above. In addition, the repurchase of Common Shares by the Fund will be a taxable event to Common Shareholders, potentially even to those shareholders that do not participate in the repurchase. For a discussion of these tax consequences, see “Tax Matters” above and in the Statement of Additional Information.

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Periodic Repurchase Offers

Distributor, Custodian and Transfer Agent

Nuveen Securities, LLC, an affiliate of Nuveen Fund Advisors and Nuveen Asset Management, serves as the Fund’s principal underwriter and distributor. The custodian of the Fund’s assets is State Street Bank and Trust Company (“State Street”), One Lincoln Street, Boston, Massachusetts 02111. State Street performs custodial, fund accounting and portfolio accounting services. The transfer agent of the Fund is DST Systems, Inc., 333 West 11th Street, 5th Floor, Kansas City, Missouri 64105.

Legal Opinions and Experts

Certain legal matters will be passed on for the Fund by Stradley Ronon Stevens & Young, LLP, Chicago, Illinois. Stradley Ronon Stevens & Young, LLP may rely as to certain matters of Massachusetts law on the opinion of Morgan, Lewis & Bockius LLP, Boston, Massachusetts. PwC serves an independent registered public accounting firm, provides auditing services to the Fund.

Privacy Statement

Nuveen (and its affiliated investment advisors and funds) considers your privacy our utmost concern. In order to provide you with individualized service, we collect certain nonpublic personal information about you from information you provide on applications or other forms (such as your address and social security number), and information about your account transactions with us (such as purchases, sales and account balances). We may also collect such information through your account inquiries by mail, email, telephone or on our Website.

We do not disclose any nonpublic personal information about you to anyone, except as permitted by law. Specifically, so that we may continue to offer you Nuveen products and services that best meet your investing needs, and to effect transactions that you request or authorize, we may disclose the information we collect, as described above, to companies that perform administrative or marketing services on our behalf, such as transfer agents, or printers and mailers that assist us in the distribution of investor materials. These companies will use this information only for the services for which we hired them, and are not permitted to use or share this information for any other purpose.

If you decide at some point either to close your account(s) or to become an inactive customer, we will continue to adhere to the privacy policies and practices described in this notice.

With regard to our internal security procedures, we restrict access to your personal and account information to those employees who need to know that information to service your account. We maintain physical, electronic and procedural safeguards to protect your nonpublic personal information.

For questions about our policy, or for additional copies of this notice, please go to www.nuveen.com,or contact Nuveen at 333 West Wacker Drive, Chicago, IL 60606, or (800) 257-8787.

Distributor, Custodian and Transfer Agent/Legal Opinions and Experts, Privacy Principles of the Fund

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Nuveen Enhanced High Yield Municipal Bond Fund

Class I Common Shares

Class A1 Common Shares

Class A2 Common Shares

Prospectus

July 29, 2022

RPR-HYIF-0621D

NUVEEN ENHANCED HIGH YIELD MUNICIPAL BOND FUND

STATEMENT OF ADDITIONAL INFORMATION

Nuveen Enhanced High Yield Municipal Bond Fund (the “Fund”) is a non-diversified, closed-end management investment company that continuously offers its shares (the “Common Shares”) and is operated as an “interval fund.” The Fund currently offers three classes of Common Shares: Class I Common Shares, Class A1 Common Shares and Class A2 Common Shares. The Fund may offer additional classes of Common Shares in the future. The Fund commenced operations on June 30, 2021.

This Statement of Additional Information relating to Common Shares does not constitute a prospectus, but should be read in conjunction with the Fund’s prospectus relating thereto dated July 29, 2022 (the “Prospectus”). In this Statement of Additional Information, holders of Common Shares are referred to as “Common Shareholders.” This Statement of Additional Information does not include all information that a prospective investor should consider before purchasing Common Shares. Investors should obtain and read the Fund’s Prospectus prior to purchasing such shares. A copy of the Fund’s Prospectus, annual and semi-annual reports 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 Fund’s Prospectus or this Statement of Additional Information (“SAI”). In addition, the Fund’s audited financial statements and the independent registered public accounting firm’s report thereon included in the Fund’s annual report for the fiscal period ended March 31, 2022 are incorporated into this SAI by reference. 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 Statement of Additional Information have the meanings ascribed to them in the Prospectus.

This Statement of Additional Information is dated July 29, 2022

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INVESTMENT OBJECTIVES AND POLICIES

The Fund’s primary investment objective is to provide a high level of current income exempt from regular U.S. federal income tax. Capital appreciation is a secondary investment objective when consistent with the Fund’s primary investment objective. The Fund’s investment objectives may be changed by the Board of Trustees upon 60 days’ prior written notice to shareholders.

Fund Strategies

The Fund’s portfolio is actively managed to identify and capitalize on high yield municipal securities. Nuveen Asset Management, LLC, the Fund’s subadviser (“Nuveen Asset Management”), uses a research-driven approach that seeks attractive income exempt from regular U.S. federal income taxes by identifying and capitalizing on opportunities in high yield municipal securities. The Fund invests in below investment grade bonds that Nuveen Asset Management believes may offer the potential for attractive total returns, even after taking into account the significant risk (relative to higher quality securities) that these securities typically present.

The Fund may also invest in special situations municipal securities that Nuveen Asset Management believes may offer the potential for attractive total returns, even after taking into account the significant risk (relative to higher quality securities) that these securities typically present. Special situations municipal securities are municipal securities: (i) of issuers that are facing distressed financial or operating circumstances, are in default of its obligations or in an active work-out, or are in bankruptcy; or (ii) that present uncertainties or complex features that could render them undesirable for certain investors. Special situations municipal securities may offer illiquidity and complexity premiums, which may create significant investment opportunity for the Fund.

The Fund may also use certain hedging techniques to reduce exposure of the portfolio to adverse business or market conditions. See “—Other Policies” below and “Risks—Portfolio Level Risks—Hedging Risk” in the Prospectus.

As an “interval fund”, the Fund will provide Common Shareholders periodic liquidity. See “Periodic Repurchase Offers” in the Prospectus. Nuveen Fund Advisors, LLC, the Fund’s investment adviser (“Nuveen Fund Advisors”), believes the Fund’s “interval fund” structure may provide greater income and total return potential as compared to a traditional high yield municipal mutual fund. Without the potential disruption of outflows from daily liquidity, Nuveen Asset Management may capture illiquidity premiums often unavailable to individual retail investors through more liquid investment vehicles such as mutual funds. In addition, Nuveen Fund Advisors believes that the Fund’s interval structure allows more flexibility to assume larger position sizes; enables a greater allocation to less-illiquid municipal securities; and provides the Fund the opportunity to realize the maximum long-term value of certain special situations within the municipal market such as work-outs (a privately negotiated, mutual agreement between the Fund and the issuer or another party with respect to securities in default or involved in bankruptcy or insolvency proceedings).

Portfolio Contents

The Fund invests its assets in a portfolio of municipal securities. Municipal securities include municipal bonds, notes, securities issued to finance and refinance public projects, certificates of participation, variable rate demand obligations, lease obligations, municipal notes, pre-refunded municipal bonds, private activity bonds, securities issued by tender option bond trusts, including inverse floating rate securities, and other forms of municipal bonds and securities, and other related instruments that create exposure to municipal bonds, notes and securities that provide for the payment of interest income that is exempt from regular U.S. federal income tax.

Municipal securities are debt obligations generally issued by states, cities and local authorities and certain possessions and territories of the United States (such as Puerto Rico and Guam) to finance or refinance public purpose projects such as roads, schools, and water supply systems. Municipal securities may also be

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issued to finance and refinance privately owned facilities, such as housing, medical and educational construction, or for privately owned transportation, electric utility and pollution control projects deemed to serve a public purpose. Municipal securities may be issued on a long-term basis to provide long-term 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 securities may also be issued to finance projects on a short-term interim basis, anticipating repayment with the proceeds of long-term debt. Municipal securities may be issued and purchased 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 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 may increase the leverage of the Fund. The market value of a municipal security will generally depend upon its form, maturity, call features and interest rate, as well as the credit quality or credit rating of the issuer, all such factors examined in the context of the municipal securities market and interest rate levels and trends.

The Fund may invest in special situations municipal securities. Special situations municipal securities are municipal securities:

The portion of the Fund’s assets invested in special situations municipal securities may fluctuate significantly over time according to the availability of attractive special situations municipal securities opportunities. See “Risks—Portfolio Level Risks—Special Situations Municipal Securities Risk” in the Prospectus.

See “Portfolio Composition and Other Information” for additional information on the types of securities in which the Fund may invest.

The Fund also may invest in certain derivative instruments in pursuit of its investment objectives. Such instruments include financial futures contracts, swap contracts (including interest rate and credit default swaps), options on financial futures, options on swap contracts, or other derivative instruments. See “Leverage” and “Risks—Portfolio Level Risks—Derivatives Risk” in the Prospectus. Nuveen Asset Management may use derivative instruments to attempt to hedge some of the risk of the Fund’s investments or as a substitute for a position in the underlying asset. See “Portfolio Composition and Other Information—Derivatives” in the Prospectus.

Investment Policies

Under normal circumstances the Fund will invest subject to the following policies:

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The foregoing policies 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 securities.

“Assets” means net assets of the Fund plus the amount of any borrowings for investment purposes. “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.

Low to medium quality municipal securities include below investment grade securities (or “junk bonds”). Below investment grade securities are generally securities rated BB+/Ba1 or lower at the time of investment and 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. For purposes of the investment limitations in this prospectus, a security’s rating is determined using the lowest rating of Moody’s, S&P and Fitch if all three NRSROs rate the security. 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 a security is not rated by any NRSRO, the rating determined by Nuveen Asset Management to be of comparable quality is used. The portion of the Fund’s assets invested in low to medium quality municipal securities may vary over time, and may fluctuate significantly over time, over the minimum of 75% described above.

While investments in special situations municipal securities may be a component of the Fund’s investment strategy in pursuit of its investment objectives, the ability of the Fund to invest in special situation municipal securities may be limited by the availability of attractive opportunities in the market. The portion of the Fund’s assets that are invested in such securities, if any, may fluctuate significantly over time up to the 25% limit described above.

Nuveen Asset Management may determine that it is in the best interest of shareholders to pursue a work-out arrangement (i.e., a privately negotiated, mutual agreement between the Fund and the issuer or another party) with respect to a defaulted security, 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.

The Fund may enter into certain derivative transactions as a hedging technique to protect against potential adverse changes in the market value of portfolio securities. The Fund also may use derivatives to attempt to protect the NAV of the Fund, to facilitate the sale of certain portfolio securities, to manage the Fund’s effective interest rate exposure, 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 securities.

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For temporary defensive purposes, during periods of high cash inflows or outflows, or during a Repurchase Offer Period, the Fund may depart from its principal investment strategies and invest up to 100% of its Managed Assets in cash equivalents, U.S. government securities and other high-quality short-term debt securities. During such periods, the Fund may not be able to achieve its investment objectives. The Fund may adopt a defensive strategy when Nuveen Asset Management believes the instruments in which the Fund normally invests have elevated risks due to political or economic factors, in the event that unanticipated legal or regulatory developments interfere with implementation of the Fund’s principal investment strategies, and in other extraordinary circumstances.

The Fund’s investment policy to invest at least 80% of its Assets in municipal securities and other related investments, the income from which is exempt from regular U.S. federal income tax and certain other investment restrictions identified in the SAI as such are considered fundamental. See also “Investment Restrictions” in this SAI. 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 approval of a changes to the Fund’s fundamental policies, 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. 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 Common Shareholders.

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 net asset value (“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 securities 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 this SAI as such are considered fundamental and may not be changed without shareholder approval. See “Investment Restrictions.” 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. However, the Fund’s policy of investing at least 80% of its Assets in municipal securities and other investments, the income from which is exempt from regular U.S. federal income tax, is a fundamental policy. 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.

LEVERAGE

The Fund uses leverage to seek to achieve its investment objectives. The Fund may use leverage to the extent permitted under the Investment Company Act of 1940, as amended (the “1940 Act”). The Fund may obtain leverage through either investments 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, borrowings, reverse repurchase agreements (effectively a borrowing) and the issuance of preferred shares of beneficial interest (“Preferred Shares”), which have seniority over the Common Shares, or a combination of thereof.

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The Fund may source leverage through a number of methods including investing in inverse floating rate securities, issuance of debt securities, borrowings, entering into reverse repurchase agreements (effectively a borrowing), and issuance of Preferred Shares. The Fund currently utilizes a credit facility with a financial institution to borrow up to an aggregate limit of $30,000,000 (the “Credit Facility”) and inverse floating rate securities as leverage. As of June 30, 2022, the Fund had $20,000,000 outstanding under its Credit Facility.

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. Investments in inverse floating rate securities have the economic effect of leverage. See “Risks—Portfolio Level Risks—Inverse Floating Rate Securities Risk” in the Prospectus.

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 security 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 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.

The Fund may reduce or increase the amount of leverage based upon changes in market conditions and/or composition of the Fund’s holdings. The Fund’s leverage ratio will vary from time to time based upon such changes in the amount of leverage used, variations in the value of the Fund’s holdings and the levels of Common Share subscription and repurchase offer activity related to the Fund’s continuously offered interval fund structure. 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 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.

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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 objectives. 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. “Senior securities” have seniority over the Common Shares in regard to the income and assets of the Fund. 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 (“Preferred Shares”); 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. 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 objectives and policies.

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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,” “—Portfolio Level Risks—Inverse Floating Rate Securities Risk” and “—Reverse Repurchase Agreement Risk” in the Prospectus. There is no assurance 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 securities 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 users³;

(5) Purchase or sell real estate, but this shall not prevent the Fund from investing in municipal securities secured by real estate or interests therein or foreclosing upon and selling such real estate;

(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); and

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

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

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 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.

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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, such limitation will apply to municipal securities if the payment of principal and interest for such securities is derived principally from a specific project, and in that situation the Fund will consider such municipal securities to be in an industry associated with the project. In addition, 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.

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, unless permitted to exceed such limitation pursuant to SEC rule or exemptive relief. 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 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.

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 objectives and policies.

In addition, the Fund has adopted the following fundamental policies with respect to repurchase offers, which may not be changed without the approval of the holders of a majority of the Fund’s 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) The Fund will make quarterly repurchase offers pursuant to Rule 23c-3 under the 1940 Act, as it may be amended from time to time.

(2) The Fund will repurchase shares that are tendered by a specific date (the “Repurchase Request Deadline”), which will be established by the Board of Trustees (the “Board’) in accordance with Rule 23c-3, as amended from time to time. Rule 23c-3 requires the Repurchase Request Deadline to be no less than 21 and no more than 42 days after the Fund sends notification to shareholders of the repurchase offer.

(3) There will be a maximum fourteen (14) calendar day period (or the next business day if the 14th calendar day is not a business day) between the Repurchase Request Deadline and the date on which the NAV applicable to the repurchase offer is determined (the “Repurchase Pricing Date”).

Under certain limited circumstances, the Fund may postpone or suspend repurchase offers. See “Periodic Repurchase Offers—Suspension or Postponement of Repurchase Offers” in the Prospectus.

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PORTFOLIO COMPOSITION AND OTHER INFORMATION

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

Municipal Securities

General.    The Fund may invest in various 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 regular federal income tax. Municipal securities are often issued by state and local governmental entities to finance or refinance public projects such as roads, schools, and water supply systems. Municipal securities 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 securities 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 securities 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 Leases and Certificates of Participation.    Also included within the general category of municipal securities described in the Prospectus are municipal leases, certificates of participation in such lease obligations or installment purchase contract obligations (hereinafter collectively called “Municipal Lease Obligations”) of municipal authorities or entities. Although a Municipal Lease Obligation does not constitute a general obligation of the municipality for which the municipality’s taxing power is pledged, a Municipal Lease Obligation is ordinarily backed by the municipality’s covenant to budget for, appropriate and make the payments due under the Municipal Lease Obligation. However, certain Municipal Lease Obligations contain “non-appropriation” clauses which provide that the municipality has no obligation to make lease or installment purchase payments in future years unless money is appropriated for such purpose on a yearly basis. In the case of a “non-appropriation” lease, the Fund’s ability to recover under the lease in the event of non-appropriation or default will be limited solely to the repossession of the leased property, without recourse to the general credit of the lessee, and disposition or releasing of the property might prove difficult. In order to reduce this risk, the Fund will only purchase Municipal Lease Obligations where Nuveen Asset Management believes the issuer has a strong incentive to continue making appropriations until maturity.

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

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by the issuer. The 2017 Tax Cuts and Jobs Act repealed the exclusion from gross income for interest on pre-refunded municipal securities effective for such bonds issued after December 31, 2017.

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. Under current law, a significant portion of the private activity bond market is comprised of AMT Bonds. “AMT Bonds” are municipal securities that pay interest that is taxable under the federal alternative minimum tax applicable to noncorporate taxpayers. The Fund’s distributions of its interest income from private activity bonds may subject certain investors to the federal alternative minimum tax.

Special Taxing Districts.    Special taxing districts are organized to plan and finance infrastructure development 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 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.

Special Situations Securities

The Fund may invest in special situations municipal securities. Special situations municipal securities are municipal securities:

The portion of the Fund’s assets invested in special situations municipal securities may fluctuate significantly over time according to the availability of attractive special situations municipal securities opportunities. See “Risks—Portfolio Level Risks—Special Situations Municipal Securities Risk” below.

Corporate Debt Securities

The Fund may invest in corporate debt securities, including 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

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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.

U.S. Treasury Securities

The Fund may invest in U.S. Government direct obligations. U.S. Government direct obligation are issued by the United States Treasury and include bills, notes and bonds. Treasury bills are issued with maturities of up to one year. They are issued in bearer form, are sold on a discount basis and are payable at par value at maturity. Treasury notes are longer-term interest-bearing obligations with original maturities of one to seven years. Treasury bonds are longer-term interest-bearing obligations with original maturities from five to thirty years.

Hedging Strategies and Other Uses of Derivatives

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 the income from which is exempt from regular federal income tax.

“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 Lehman 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.

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

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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 objectives 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.

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 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

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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.

Municipal Market Data Rate Locks.    The Fund may purchase and sell municipal market data rate locks (“MMD Rate Locks”). An MMD Rate Lock permits the Fund to lock in a specified municipal interest rate for a portion of its portfolio to preserve a return on a particular investment or a portion of its portfolio as a duration management technique or to protect against any increase in the price of securities to be purchased at a later date. By using an MMD Rate Lock, the Fund can create a synthetic long or short position, allowing the Fund to select what the manager believes is an attractive part of the yield curve. The Fund will ordinarily use these transactions as a hedge or for duration or risk management although it is permitted to enter into them to enhance income or gain or to increase the Fund’s yield, for example, during periods of steep interest rate yield curves (i.e., wide differences between short term and long term interest rates). An MMD Rate Lock is a contract between the Fund and an MMD Rate Lock provider pursuant to which the parties agree to make payments to each other on a notional amount, contingent upon whether the Municipal Market Data AAA General Obligation Scale is above or below a specified level on the expiration date of the contract. For example, if the Fund buys an MMD Rate Lock and the Municipal Market Data AAA General Obligation Scale is below the specified level on the expiration date, the counterparty to the contract will make a payment to the Fund equal to the specified level minus the actual level, multiplied by the notional amount of the contract. If the Municipal Market Data AAA General Obligation Scale is above the specified level on the expiration date, the Fund will make a payment to the counterparty equal to the actual level minus the specified level, multiplied by the notional amount of the contract. In connection with investments in MMD Rate Locks, there is a risk that municipal yields will move in the opposite direction than anticipated by the Fund, which would cause the Fund to make payments to its counterparty in the transaction that could adversely affect the Fund’s performance.

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.

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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.”

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

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.

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

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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.

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.

The requirements for qualification as a regulated investment company (“RIC”) under the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”) 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 municipal securities, to attempt to manage the effective maturity or duration of securities in the Fund’s portfolio or as a substitute for a position in the underlying asset. These types of strategies may generate taxable income.

There is no assurance that these derivative strategies will be available at any time or that Nuveen Fund Advisors and Nuveen Asset Management will determine to use them for the Fund or, if used, that the strategies will be successful.

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 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. 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 or its delegatee.

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Inverse Floating Rate Securities and Floating Rate Securities

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 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 investments, 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 inverse floating rate 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, 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 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 (i.e., the Fund typically bears the risk of loss with respect to any liquidity shortfall). 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 liquidity provider to a special purpose trust. The Fund may enter into such recourse agreements (i) when the liquidity provider 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 liquidity provider to such inverse floater, 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.

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

Floating Rate Securities.    The Fund may also invest in floating rate securities, as described above, 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 security 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 short-term floating rate securities and inverse floaters generally include liquidation triggers to protect the investor in the floating rate security.

Other Investment Companies

The Fund may invest in securities of other open or closed-end investment companies (including exchange-traded funds (“ETFs”)) that invest primarily in municipal securities 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 municipal securities 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, high-yielding municipal securities 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. The Fund will consider the investments of underlying investment companies when determining compliance with Rule 35d-1 under the 1940 Act. 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 municipal security 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.

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

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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.

Short-Term Investments

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 Managed 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) the Federal National Mortgage Association*, 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 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

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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.

Short-Term Tax-Exempt Municipal Securities

Short-term tax-exempt municipal securities are securities that are exempt from regular federal income tax and mature within three years or less from the date of issuance. Short-term tax-exempt municipal income securities are defined to include, without limitation, the following:

Bond Anticipation Notes (“BANs”) are usually general obligations of state and local governmental issuers which are sold to obtain interim financing for projects that will eventually be funded through the sale of long-term debt obligations or bonds. The ability of an issuer to meet its obligations on its BANs is primarily dependent on the issuer’s access to the long-term municipal bond market and the likelihood that the proceeds of such bond sales will be used to pay the principal and interest on the BANs.

Tax Anticipation Notes (“TANs”) are issued by state and local governments to finance the current operations of such governments. Repayment is generally to be derived from specific future tax revenues. TANs are usually general obligations of the issuer. A weakness in an issuer’s capacity to raise taxes due to, among other things, a decline in its tax base or a rise in delinquencies, could adversely affect the issuer’s ability to meet its obligations on outstanding TANs.

Revenue Anticipation Notes (“RANs”) are issued by governments or governmental bodies with the expectation that future revenues from a designated source will be used to repay the notes. In general, they also constitute general obligations of the issuer. A decline in the receipt of projected revenues, such as anticipated revenues from another level of government, could adversely affect an issuer’s ability to meet its obligations on outstanding RANs. In addition, the possibility that the revenues would, when received, be used to meet other obligations could affect the ability of the issuer to pay the principal and interest on RANs.

Construction Loan Notes are issued to provide construction financing for specific projects. Frequently, these notes are redeemed with funds obtained from the Federal Housing Administration.

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Bank Notes are notes issued by local government bodies and agencies, such as those described above to commercial banks as evidence of borrowings. The purposes for which the notes are issued are varied but they are frequently issued to meet short-term working capital or capital-project needs. These notes may have risks similar to the risks associated with TANs and RANs.

Tax-Exempt Commercial Paper (“Municipal Paper”) represents very short-term unsecured, negotiable promissory notes issued by states, municipalities and their agencies. Payment of principal and interest on issues of municipal paper may be made from various sources, to the extent the funds are available therefrom. Maturities of municipal paper generally will be shorter than the maturities of TANs, BANs or RANs. There is a limited secondary market for issues of Municipal Paper.

Certain municipal securities may carry variable or floating rates of interest whereby the rate of interest is not fixed but varies with changes in specified market rates or indices, such as a bank prime rate or a tax-exempt money market index.

While the various types of notes described above as a group represent the major portion of the short-term tax-exempt note market, other types of notes are available in the marketplace and the Fund may invest in such other types of notes to the extent permitted under its investment objectives, policies and limitations. Such notes may be issued for different purposes and may be secured differently from those mentioned above.

Auction Rate Securities

Municipal securities also include auction rate municipal securities and auction rate preferred securities issued by closed-end investment companies that invest primarily in municipal securities (collectively, “auction rate securities”). In recent market environments, auctions have failed, which adversely affects the liquidity and price of auction rate securities, and are unlikely to resume. Provided that the auction mechanism is successful, auction rate securities usually permit the holder to sell the securities in an auction at par value at specified intervals. The dividend is reset by “Dutch” auction in which bids are made by broker-dealers and other institutions for a certain amount of securities at a specified minimum yield. The dividend rate set by the auction is the lowest interest or dividend rate that covers all securities offered for sale. While this process is designed to permit auction rate securities to be traded at par value, there is a risk that an auction will fail due to insufficient demand for the securities. Moreover, between auctions, there may be no secondary market for these securities, and sales conducted on a secondary market may not be on terms favorable to the seller. Auction rate securities may be called by the issuer. Thus, with respect to liquidity and price stability, auction rate securities may differ substantially from cash equivalents, notwithstanding the frequency of auctions and the credit quality of the security. The Fund’s investments in auction rate securities of closed-end funds are subject to the limitations prescribed by the 1940 Act. The Fund will indirectly bear its proportionate share of any management and other fees paid by such closed-end funds in addition to the advisory fees payable directly by the Fund.

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 15-45 days of the trade date. On such transactions the payment obligation and the interest rate are fixed at the time the buyer enters into the commitment. Beginning on the date the Fund enters into a commitment to purchase securities on a when-issued or delayed delivery basis, the Fund is required under rules of the SEC to maintain in a separate account liquid assets, consisting of cash, cash equivalents or liquid securities having a market value, at all times, of at least equal to the amount of the commitment. Income generated by any such assets which provide taxable income for federal income tax purposes is includable in the taxable income of the Fund and, to the extent distributed, will be taxable distributions to shareholders. The Fund may enter into contracts to purchase municipal securities on a forward basis (i.e., where settlement will occur more than 60 days from the date of the transaction) only to the extent that the Fund specifically collateralizes such obligations with a security that is expected to be called or mature within

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sixty days before or after the settlement date of the forward transaction. The commitment to purchase securities on a when-issued, delayed delivery or forward basis may involve an element of risk because no interest accrues on the bonds prior to settlement and at the time of delivery the market value may be less than their cost.

Zero Coupon Bonds

A zero coupon bond is a bond that typically does not pay interest either for the entire life of the obligation or for an initial period after the issuance of the obligation. When held to its maturity, the holder receives the par value of the zero coupon bond, which generates a return equal to the difference between the purchase price and its maturity value. A zero coupon bond is normally issued and traded at a deep discount from face value. This original issue discount (“OID”) approximates the total amount of interest the security will accrue and compound prior to its maturity and reflects the payment deferral and credit risk associated with the instrument. Because zero coupon securities and other OID instruments do not pay cash interest at regular intervals, the instruments’ ongoing accruals require ongoing judgments concerning the collectability of deferred payments and the value of any associated collateral. As a result, these securities may be subject to greater value fluctuations and less liquidity in the event of adverse market conditions than comparably rated securities that pay cash on a current basis. Because zero coupon bonds, and OID instruments generally, allow an issuer to avoid or delay the need to generate cash to meet current interest payments, they may involve greater payment deferral and credit risk than coupon loans and bonds that pay interest currently or in cash. The Fund generally will be required to distribute dividends to shareholders representing the income of these instruments as it accrues, even though the Fund will not receive all of the income on a current basis or in cash. Thus, the Fund may have to sell other investments, including when it may not be advisable to do so, and use the cash proceeds to make income distributions to its shareholders. For accounting purposes, these cash distributions to shareholders will not be treated as a return of capital.

Further, Nuveen Fund Advisors collects management fees on the value of a zero coupon bond or OID instrument attributable to the ongoing non-cash accrual of interest over the life of the bond or other instrument. As a result, Nuveen Fund Advisors receives non-refundable cash payments based on such non-cash accruals while the Fund and Common Shareholders incur the risk that such non-cash accruals ultimately may not be realized.

Structured Notes

The Fund may utilize structured notes and similar instruments for investment purposes and also for hedging purposes. Structured notes are privately negotiated debt obligations where the principal and/ or interest is determined by reference to the performance of a benchmark asset, market or interest rate (an “embedded index”), such as selected securities, an index of securities or specified interest rates, or the differential performance of two assets or markets. The terms of such structured instruments normally provide that their principal and/or interest payments are to be adjusted upwards or downwards (but not ordinarily below zero) to reflect changes in the embedded index while the structured instruments are outstanding. As a result, the interest and/or principal payments that may be made on a structured product may vary widely, depending upon a variety of factors, including the volatility of the embedded index and the effect of changes in the embedded index on principal and/or interest payments. The rate of return on structured notes may be determined by applying a multiplier to the performance or differential performance of the referenced index or indices or other assets. Application of a multiplier involves leverage that will serve to magnify the potential for gain and the risk of loss. These types of investments may generate taxable income.

Portfolio Trading and Turnover

Portfolio trading may be undertaken to accomplish the investment objectives of the Fund in relation to actual and anticipated movements in interest rates. In addition, a security may be sold and another of comparable quality purchased at approximately the same time to take advantage of what Nuveen Asset Management believes

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to be a temporary price disparity between the two securities. Temporary price disparities between two comparable securities may result from supply and demand imbalances where, for example, a temporary oversupply of certain securities may cause a temporarily low price for such securities, as compared with other securities of like quality and characteristics.

A security also may be sold when Nuveen Asset Management anticipates a change in the price of such security, Nuveen Asset Management believes the price of a security has reached or is near a realistic maximum, or there are other securities that Nuveen Asset Management believes are more attractive given the Fund’s investment objectives. The Fund also may engage to a limited extent in short-term trading consistent with its investment objectives. Securities 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 objectives by prudent selection of securities with a view to holding them for investment. For the fiscal period ended March 31, 2022, the Fund’s portfolio turnover rate was 88%. 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 twelve, 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. Currently the Board of Trustees consists of William C. Hunter, Amy B. R. Lancellotta, Joanne T. Medero, Judith M. Stockdale, Carole E. Stone, Margaret L. Wolff, John K. Nelson, Matthew Thornton III, Terence J. Toth, Robert L. Young, Jack B. Evans and Albin F. Moschner. 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 annual terms and are elected on an annual basis. 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 July 27, 2022, the trustees of the Fund are directors or trustees, as the case may be, of 64 Nuveen-sponsored open-end mutual funds (the “Nuveen Mutual Funds”); and 57 Nuveen-sponsored closed-end funds and 19 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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26

27

28

29

30

31

32

33

34

35

36

37

38

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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

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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 Fund’s 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 Open-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, Ms. Wolff and Mr. Young serve as the current members of the Executive Committee of the Board. During the fiscal year ended March 31, 2022, the Executive Committee met 0 times.

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, Mr. Nelson, Mr. Moschner, Ms. Stockdale and Mr. Young, each of whom is an independent trustee of the Funds. A copy of the Charter is available at www.nuveen.com/fundgovernance. During the fiscal year ended March 31, 2022, the Audit Committee met 4 times.

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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 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, 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, Ms. Lancellotta, Ms. Medero, Mr. Moschner, Mr. Nelson, Ms. Stockdale, Ms. Stone, Mr. Thornton, Ms. Wolff and Mr. Young. During the fiscal year ended March 31, 2022, the Nominating and Governance Committee met 7 times.

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, Mr. Moschner, Mr. Nelson and Mr. Thornton. During the fiscal year ended March 31, 2022, the Dividend Committee met 4 times.

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

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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 members of the Compliance Committee are Ms. Wolff, Chair, Dr. Hunter, Ms. Lancellotta, Ms. Medero, Mr. Nelson, Mr. Thornton and Mr. Toth. During the fiscal year ended March 31, 2022, the Compliance Committee met 4 times.

The Open-End Funds Committee is responsible for assisting the Board in the oversight and monitoring of the Nuveen Funds that are registered as open-end management investment companies (“Open-End Funds”). The committee may review and evaluate matters related to the formation and the initial presentation to the Board of any new Open-End Fund and may review and evaluate any matters relating to any existing Open-End Fund. The committee operates under a written charter adopted and approved by the Board. The members of the Open-End Funds Committee are Mr. Moschner, Chair, Ms. Medero, Ms. Stockdale, Ms. Stone, Mr. Thornton, Mr. Toth and Mr. Young. During the fiscal year ended March 31, 2022 the Open-End Funds Committee met four times.

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.

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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 1997 to 2003 as well as a Director of Alliant Energy from 2000 to 2004 and Member and President Pro Tem of the Board of Regents for the State of Iowa University System from 2007 to 2013. Mr. Evans is a Life Trustee of Coe College and formerly served as Chairman of the Board of United Fire Group from 2009 to 2021, 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 from 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.

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.

Amy B. R. Lancellotta

After 30 years of service, Ms. Lancellotta retired at the end of 2019 from the Investment Company Institute (ICI), which represents regulated investment companies on regulatory, legislative and securities industry initiatives that affect funds and their shareholders. From November 2006 until her retirement, Ms. Lancellotta served as Managing Director of ICI’s Independent Directors Council (IDC), which supports fund independent directors in fulfilling their responsibilities to promote and protect the interests of fund shareholders. At IDC, Ms. Lancellotta was responsible for all ICI and IDC activities relating to the fund independent director community. In conjunction with her responsibilities, Ms. Lancellotta advised and represented IDC, ICI, independent directors and the investment company industry on issues relating to fund governance and the role of fund directors. She also directed and coordinated IDC’s education, communication, governance and policy initiatives. Prior to serving as Managing Director of IDC, Ms. Lancellotta held various other positions with ICI beginning in 1989. Before joining ICI, Ms. Lancellotta was an associate at two Washington, D.C. law firms. In addition, since 2020, she has been a member of the Board of Directors of the Jewish Coalition Against Domestic Abuse (JCADA), an organization that seeks to end power-based violence, empower survivors and ensure safe communities. Ms. Lancellotta received a B.A. degree from Pennsylvania State University in 1981 and a J.D. degree from the National Law Center, George Washington University (currently known as George Washington University Law School) in 1984.

Joanne T. Medero

Ms. Medero has over 30 years of financial services experience and, most recently, from December 2009 until her retirement in July 2020, she was a Managing Director in the Government Relations and Public Policy Group at BlackRock, Inc. (BlackRock). From July 2018 to July 2020, she was also Senior Advisor to BlackRock’s Vice Chairman, focusing on public policy and corporate governance issues. In 1996, Ms. Medero

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joined Barclays Global Investors (BGI), which merged with BlackRock in 2009. At BGI, she was a Managing Director and served as Global General Counsel and Corporate Secretary until 2006. Then, from 2006 to 2009, Ms. Medero was a Managing Director and Global Head of Government Relations and Public Policy at Barclays Group (IBIM), where she provided policy guidance and directed legislative and regulatory advocacy programs for the investment banking, investment management and wealth management businesses. Before joining BGI, Ms. Medero was a Partner at Orrick, Herrington & Sutcliffe LLP from 1993 to 1995, where she specialized in derivatives and financial markets regulation issues. Additionally, she served as General Counsel of the Commodity Futures Trading Commission (CFTC) from 1989 to 1993 and, from 1986 to 1989, she was Deputy Associate Director/Associate Director for Legal and Financial Affairs at The White House Office of Presidential Personnel. Further, from 2006 to 2010, Ms. Medero was a member of the CFTC Global Markets Advisory Committee and she has been actively involved in financial industry associations, serving as Chair of the Steering Committee of the SIFMA (Securities Industry and Financial Markets Association) Asset Management Group (2016-2018) and Chair of the CTA (Commodity Trading Advisor), CPO (Commodity Pool Operator) and Futures Committee of the Managed Funds Association (2010-2012). Currently, Ms. Medero chairs the Corporations, Antitrust and Securities Practice Group of The Federalist Society for Law and Public Policy (since 2010 and from 2000 to 2002). In addition, since 2019, she has been a member of the Board of Directors of the Baltic-American Freedom Foundation, which seeks to provide opportunities for citizens of the Baltic states to gain education and professional development through exchanges in the United States. Ms. Medero received a B.A. degree from St. Lawrence University in 1975 and a J.D. degree from the National Law Center, George Washington University (currently known as George Washington University Law School) in 1978.

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.

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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, holding a BA in Economics and an MBA in Finance. Mr. Nelson joined the Board in 2013.

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. (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.

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Terence J. Toth

Mr. Toth, the Nuveen Funds’ Independent Chair, was a Co-Founding Partner of Promus Capital (2008-2017). From 2012 to 2021, he was a Director of Quality Control Corporation, from 2010 to 2019, he was a Director of Fulcrum IT Service LLC and from 2012 to 2016, he was a Director of LogicMark LLC. 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 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 as Chair of the Board of the Kehrein Center for the Arts (since 2021) and is on the Board of Catalyst Schools of Chicago since 2008. He is on the Mather Foundation Board since 2012 and is Chair of its Investment Committee. 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 formerly served as Chair from 2015 to 2022. 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

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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.

As of December 31, 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 December 31, 2021 the officers and trustees of the Fund, in the aggregate, own none of the Fund’s equity securities.

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As of June 30, 2022, each Fund’s officers and trustees, as a group, owned less than 1% of each class of the Fund’s outstanding Common Shares.

Compensation

The following table shows, for each independent Trustee, (1) the aggregate compensation paid to each Trustee by the Fund for its fiscal year ended March 31, 2022, (2) the amount of total compensation paid to each Trustee 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, 2021. The Fund does not have a retirement or pension plan. The officers and trustees affiliated with Nuveen serve without any compensation from the Fund.

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.

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Effective January 1, 2021, independent trustees receive a $200,000 annual retainer, increased to $205,000 as of January 1, 2022, plus they receive (a) a fee of $7,000 per day for attendance in person or by telephone at regularly scheduled meetings of the Board; (b) a fee of $3,000 per meeting for attendance in person or by telephone at special, non-regularly scheduled Board meetings where in-person attendance is required and $2,000, increased to $3,000 as of January 1, 2022, per meeting for attendance by telephone or in person at such meetings where in-person attendance is not required; (c) a fee of $2,500 per meeting for attendance in person or by telephone at Audit Committee meetings where in-person attendance is required and $2,000, increased to $2,250 as of January 1, 2022, per meeting for attendance by telephone or in person at such meetings where in-person attendance is not required; (d) a fee of $5,000 per meeting for attendance in person or by telephone at Compliance, Risk Management and Regulatory Oversight Committee meetings where in-person attendance is required and $2,000 per meeting for attendance by telephone or in person at such meetings where in-person attendance is not required; (e) a fee of $1,000, increased to $1,250 as of January 1, 2022, per meeting for attendance in person or by telephone at Dividend Committee meetings; (f) a fee of $500 per meeting for attendance in person or by telephone at all other committee meetings ($1,000 for shareholder meetings) where in-person attendance is required and $250 per meeting for attendance by telephone or in person at such committee meetings (excluding shareholder meetings) where in-person attendance is not required, and $100 per meeting when the Executive Committee acts as pricing committee for IPOs, plus, in each case, expenses incurred in attending such meetings; provided that no fees are received for meetings held on days on which regularly scheduled Board meetings are held; and (g) a fee of $2,500 per meeting for attendance in person or by telephone at Open-End Funds Committee meetings where in-person attendance is required and $2,000 per meeting for attendance by telephone or in person at such meetings where in-person attendance is not required; provided that no fees are received for meetings held on days on which regularly scheduled Board meetings are held. In addition to the payments described above, the Chair of the Board receives $100,000, increased to $125,000 as of January 1, 2022, and the chairpersons of the Audit Committee, the Dividend Committee, the Compliance, Risk Management and Regulatory Oversight Committee, the Nominating and Governance Committee and the Open-End Funds Committee receive $15,000, increased to 20,000 as of January 1, 2022, each as additional retainers. Independent trustees also receive a fee of $3,500 per day for site visits to entities that provide services to the Nuveen funds on days on which no Board meeting is held. When ad hoc committees are organized, the

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Nominating and Governance Committee will at the time of formation determine compensation to be paid to the members of such committee; however, in general, such fees will be $1,000 per meeting for attendance in person or by telephone at ad hoc committee meetings where in-person attendance is required and $500 per meeting for attendance by telephone or in person at such meetings where in-person attendance is not required. The annual retainer, fees and expenses are allocated among the Nuveen funds on the basis of relative net assets, although management may, in its discretion, establish a minimum amount to be allocated to each fund. In certain instances fees and expenses will be allocated only to those Nuveen funds that are discussed at a given meeting. In certain circumstances, such as during the COVID-19 pandemic, the Board may hold in-person meetings by telephonic or videographic means and be compensated at the in-person rate.

The Fund does not have retirement or pension plans. Certain Nuveen funds (the “Participating Funds”) participate in a deferred compensation plan (the “Deferred Compensation Plan”) that permits an independent Trustee to elect to defer receipt of all or a portion of his or her compensation as an independent Trustee. The deferred compensation of a participating independent Trustee is credited to a book reserve account of the Participating Fund when the compensation would otherwise have been paid to such independent Trustee. The value of an independent 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 an independent Trustee’s deferral account, the Independent trustee may elect to receive distributions in a lump sum or over a period of five years. The Participating Fund will not be liable for any other fund’s obligations to make distributions under the Deferred Compensation Plan.

The Fund has no employees. The officers of the Fund and the trustees of the Fund who are not independent Trustees serve without any compensation from the Fund.

INVESTMENT ADVISER

Nuveen Fund Advisors will be responsible for determining the Fund’s overall investment strategy and its implementation, including the Fund’s use of leverage and ongoing monitoring of Nuveen Asset Management. Nuveen Fund Advisors also is responsible for managing the Fund’s business affairs and providing certain clerical, bookkeeping and other administrative services. For additional information regarding the management services performed by Nuveen Fund Advisors and further information about the investment management agreement between the Fund and Nuveen Fund Advisors, see “Management of the Fund” in the Prospectus.

Nuveen Fund Advisors is an indirect subsidiary of Nuveen, the investment management arm of Teachers Insurance and Annuity Association of America (“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 June 30, 2022, Nuveen managed approximately $1.1 trillion in assets, of which approximately $159.2 billion was managed by Nuveen Fund Advisors.

Pursuant to the Investment Management Agreement, the Fund has agreed to pay an annual management fee for the overall advisory and administrative services and general office facilities provided by Nuveen Fund Advisors. The Fund’s management fee is separated into two components—a complex-level component, based on the aggregate amount of all Nuveen Fund assets managed by Nuveen Fund Advisors, and a specific fund-level component, based only on the amount of assets within the Fund. This pricing structure enables Nuveen Fund shareholders to benefit from growth in the assets within each individual fund as well as from growth in the amount of complex-wide assets managed by Nuveen Fund Advisors.

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,

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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.

Nuveen Fund Advisors has agreed to waive fees and/or reimburse expenses through July 31, 2023, so that the total annual operating expenses of the Fund (excluding any distribution and/or service fees that may be applicable to a particular class of shares, issuance and dividend costs of Preferred Shares that may be issued by the Fund, interest expenses, taxes, acquired fund fees and expenses, fees incurred in acquiring and disposing of portfolio securities, litigation expenses and extraordinary expenses) do not exceed 1.25% of the average daily Managed Assets of any class of Fund shares. This expense limitation may be terminated or modified prior to that date only with the approval of the Board of Trustees.

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The following table sets forth the management fee paid by the Fund for the fiscal period:

The Investment Management Agreement was approved by the Trustees of the Fund (including all of the Trustees who are not “interested persons” of the Fund). By its terms, the Investment Management Agreement will remain in effect, unless earlier terminated as described below, for an initial two year period and shall continue thereafter on an annual basis so long as such continuation is approved at least annually by (1) the Board of Trustees or the vote of a majority of the outstanding voting securities of the Fund and (2) a majority of the trustees who are not interested persons of any party to the Investment Management Agreement, cast in person at a meeting called for the purpose of voting on such approval. The Investment Management Agreement may be terminated at any time, without penalty, by either the Fund or Nuveen Fund Advisors upon 60 days’ written notice, and is automatically terminated in the event of its assignment as defined in the 1940 Act.

A discussion regarding the Board’s decision to renew the Investment Management Agreement may be found in the Fund’s annual report to shareholders dated March 31 of each year.

SUBADVISER

Nuveen Asset Management, a registered investment adviser, is the Fund’s sub-adviser responsible for investing the Fund’s Managed Assets and is a wholly-owned subsidiary of Nuveen Fund Advisors. John Miller and Steven Hlavin serves as the Fund’s portfolio managers and are responsible for the day-to-day management of the Fund’s portfolio.

Pursuant to the Sub-Advisory Agreement between Nuveen Fund Advisors and Nuveen Asset Management, Nuveen Fund Advisors pays 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 following table sets forth the management fee paid by Nuveen Fund Advisors to Nuveen Asset Management for the period indicated below.

A discussion regarding the basis for the Board’s decision to renew the Sub-Advisory Agreement for the Fund may be found in the Fund’s annual report to shareholders dated March 31 of each year.

John Miller leads the municipals fixed income strategic direction and investment perspectives for Nuveen Asset Management. He also manages several municipal bond strategies and closed-end funds. John is a trusted public voice in discussing key issues and trends within the municipal market. He is a frequent guest on

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CNBC, Bloomberg Television and Fox Business News. His perspective is often sought out by leading industry media such as The Wall Street Journal, Barron’s, Bloomberg News and Morningstar.

John became the Head of Nuveen Municipals for Nuveen Asset Management in August of 2018 with the integration of the Nuveen Asset Management and TIAA Investments municipals team. Before being named Nuveen Asset Management’s co-head of fixed income in 2011, he was chief investment officer for the firm’s municipal bond team starting in 2007. He was named head of portfolio management for Nuveen Asset Management in 2006. He became a portfolio manager in 2000 after starting at the firm as a municipal credit analyst in 1996. He began working in the investment industry at a private account management firm in 1993.

Mr. Miller graduated with a B.A. in Economics and Political Science from Duke University, an M.A. in Economics from Northwestern University and an M.B.A. in Finance, with honors, from the University of Chicago. He holds the Chartered Financial Analyst designation and is a member of the CFA institute and the CFA society of Chicago.

Steven Hlavin is a member of the high yield portfolio management team, and is a portfolio manager for the Nuveen Short Duration High Yield Municipal Bond strategy and supports the management of the firm’s other High Yield Municipal Bond portfolios. He oversees a number of state-specific, tax-exempt portfolios including the Kansas Municipal Bond, Louisiana Municipal Bond and Wisconsin Municipal Bond strategies. He is also responsible for the tender option bond/inverse floating rate program used by some of the firm’s closed-end and open-end funds. In addition, he manages two closed-end funds that rely on the use of tender option bonds for leverage and co-manages several ETFs.

Mr. Hlavin began his career in the investment industry in 2003 when he joined the Nuveen Asset Management. Prior to his current position at the firm, he worked as a senior analyst responsible for risk management and performance measurement processes.

Mr. Hlavin graduated with a B.A. in Finance and Accounting and an M.B.A. in Finance from Miami University. He has been a speaker at the Leveraging Performance Attribution Analysis for Fixed Income Investments Conference series and the Municipal Bond Buyers Conference.

In addition to serving as a portfolio manager to the Fund, Mr. Miller is also primarily responsible for the day-to-day portfolio management of the following accounts. Information is provided as of March 31, 2022 unless otherwise indicated:

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In addition to serving as a portfolio manager to the Fund, Mr. Hlavin is also primarily responsible for the day-to-day portfolio management of the following accounts. Information is provided as of March 31, 2022 unless otherwise indicated:

Portfolio Manager Securities Ownership

The following table discloses the dollar range of equity securities beneficially owned by the portfolio managers of the Fund. The information is as of March 31, 2022.

Nuveen Asset Management Portfolio Manager Compensation

Portfolio managers are compensated through a combination of base salary and variable components consisting of (i) a cash bonus; (ii) a long-term performance award; and (iii) participation in a profits interest plan.

Base salary. A portfolio manager’s base salary is determined based upon an analysis of the portfolio manager’s general performance, experience and market levels of base pay for such position.

Cash bonus. A portfolio manager is eligible to receive an annual cash bonus that is based on three variables: risk-adjusted investment performance relative to benchmark generally measured over the most recent one, three and five year periods (unless the portfolio manager’s tenure is shorter), ranking versus Morningstar peer funds generally measured over the most recent one, three and five year periods (unless the portfolio manager’s tenure is shorter), and management and peer reviews.

Long-term performance award. A portfolio manager is eligible to receive a long-term performance award that vests after three years. The amount of the award when granted is based on the same factors used in determining the cash bonus. The value of the award at the completion of the three-year vesting period is adjusted based on the risk-adjusted investment performance of Fund(s) managed by the portfolio manager during the vesting period and the performance of the TIAA organization as a whole.

Profits interest plan. Portfolio managers are eligible to receive profits interests in Nuveen Asset Management and its affiliate, Teachers Advisors, LLC, which vest over time and entitle their holders to a percentage of the firms’ annual profits. Profits interests are allocated to each portfolio manager based on such person’s overall contribution to the firms.

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There are generally no differences between the methods used to determine compensation with respect to the Funds and the Other Accounts shown in the table below.

Nuveen Asset Management Conflict of Interest Policies

Actual or apparent conflicts of interest may arise when a portfolio manager has day-to-day management responsibilities with respect to more than one account. More specifically, portfolio managers who manage multiple accounts are presented a number of potential conflicts, including, among others, those discussed below.

The management of multiple accounts may result in a portfolio manager devoting unequal time and attention to the management of each account. Nuveen Asset Management seeks to manage such competing interests for the time and attention of portfolio managers by having portfolio managers focus on a particular investment discipline. Most accounts managed by a portfolio manager in a particular investment strategy are managed using the same investment models.

If a portfolio manager identifies a limited investment opportunity which may be suitable for more than one account, an account may not be able to take full advantage of that opportunity due to an allocation of filled purchase or sale orders across all eligible accounts. To deal with these situations, Nuveen Asset Management has adopted procedures for allocating limited opportunities across multiple accounts.

With respect to many of its clients’ accounts, Nuveen Asset Management determines which broker to use to execute transaction orders, consistent with its duty to seek best execution of the transaction. However, with respect to certain other accounts, Nuveen Asset Management may be limited by the client with respect to the selection of brokers or may be instructed to direct trades through a particular broker. In these cases, Nuveen Asset Management may place separate, non-simultaneous, transactions for a Fund and other accounts which may temporarily affect the market price of the security or the execution of the transaction, or both, to the detriment of the Fund or the other accounts.

Some clients are subject to different regulations. As a consequence of this difference in regulatory requirements, some clients may not be permitted to engage in all the investment techniques or transactions or to engage in these transactions to the same extent as the other accounts managed by a portfolio manager. Finally, the appearance of a conflict of interest may arise where Nuveen Asset Management has an incentive, such as a performance-based management fee, which relates to the management of some accounts, with respect to which a portfolio manager has day-to-day management responsibilities.

Conflicts of interest may also arise when the sub-adviser invests one or more of its client accounts in different or multiple parts of the same issuer’s capital structure, including investments in public versus private securities, debt versus equity, or senior versus junior/subordinated debt, or otherwise where there are different or inconsistent rights or benefits. Decisions or actions such as investing, trading, proxy voting, exercising, waiving or amending rights or covenants, work-out activity, or serving on a board, committee or other involvement in governance may result in conflicts of interest between clients holding different securities or investments. Generally, individual portfolio managers will seek to act in a manner that they believe serves the best interest of the accounts they manage. In cases where a portfolio manager or team faces a conflict among its client accounts, it will seek to act in a manner that it believes best reflects its overall fiduciary duty, which may result in relative advantages or disadvantages for particular accounts.

Nuveen Asset Management has adopted certain compliance procedures which are designed to address these types of conflicts common among investment managers. However, there is no guarantee that such procedures will detect each and every situation in which a conflict arises.

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Code of Ethics

The Fund, Nuveen Fund Advisors, Nuveen, Nuveen Asset Management and other related entities have adopted codes of ethics under Rule 17j-1 under the 1940 Act that prohibit certain of their personnel, including the Fund’s portfolio manager, from engaging in personal investments that compete or interfere with, or attempt to take advantage of a client’s, including the Fund’s, anticipated or actual portfolio transactions, and are designed to assure that the interests of clients, including Fund shareholders, are placed before the interests of personnel in connection with personal investment transactions. Personnel subject to a code of ethics may invest in securities for their personal investment accounts, including securities that may be purchased or held by the Fund, but only so long as such investments are made in accordance with a code’s requirements. Text-only versions of the codes of ethics of the Fund, Nuveen Fund Advisors and Nuveen Asset Management can be viewed online or downloaded from the EDGAR Database on the Securities and Exchange Commission’s internet web site at http://www.sec.gov. In addition, copies of those codes of ethics may be obtained, after paying the appropriate duplicating fee, by electronic request at the following email address: publicinfo@sec.gov.

DISTRIBUTION AND SERVICE PLAN

The Fund has adopted Distribution and Service Plan for Class A1 Common Shares and Class A2 Common Shares of the Fund. See “Plan of Distribution—Class A1 and Class A2 Distribution and Service Plan” in the Prospectus. The following table sets forth the distribution and service fees paid under the Distribution and Service Plan by each applicable class of Common Shares to the Distributor for the period indicated below.

Class A2 Common Shares were not effective during the period indicated above, as such no distribution and service fees were paid under the Distribution and Service Plan for Class A2 Common Shares.

PROXY VOTING POLICIES AND PROCEDURES

Nuveen Fund Advisors has delegated to Nuveen Asset Management the full responsibility for proxy voting on securities held in the Fund’s portfolio and related duties in accordance with the Nuveen Asset Management’s policies and procedures. Nuveen Fund Advisors periodically monitors Nuveen Asset Management’s voting to ensure that it is carrying out its duties. Nuveen Asset Management’s proxy voting policies and procedures are attached to this filing as Appendix B.

Voted Proxies. Information regarding how the Fund voted proxies (for periods subsequent to the Fund commencing operations) relating to portfolio securities during the most recent 12-month period ending June 30 (or any lesser period of time ending June 30 if the Fund has not been operating for that long) of each year is available starting August 31 of that year without charge, upon request, by calling toll free (800) 257-8787 or by accessing the SEC’s website at http://www.sec.gov. This reference to the website does not incorporate the contents of the website in the Prospectus or the SAI.

PORTFOLIO TRANSACTIONS AND BROKERAGE

Subject to the supervision of the Board of Trustees, Nuveen Asset Management is primarily responsible for the Fund’s portfolio decisions and the placing of the Fund’s portfolio transactions. Commissions are negotiated with broker/dealers on all transactions.

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Pursuant to the Investment Management Agreement and the Subadvisory Agreement, each of Nuveen Fund Advisors and Nuveen Asset Management is authorized to place orders pursuant to its investment determinations for the Fund either directly with the issuer or with any broker or dealer, foreign currency dealer, futures commission merchant or others selected by it. The general policy of Nuveen Fund Advisors and Nuveen Asset Management in selecting brokers and dealers is to obtain the best results achievable in the context of a number of factors which are considered both in relation to individual trades and broader trading patterns, including the reliability of the broker/dealer, the competitiveness of the price and the commission, the research services received and whether the broker/dealer commits its own capital.

In connection with the selection of such brokers or dealers and the placing of such orders, subject to applicable law, brokers or dealers may be selected who also provide brokerage and research services (as those terms are defined in Section 28(e) of the Securities Exchange Act of 1934, as amended (the “1934 Act”)) to the Fund and/or the other accounts over which Nuveen Fund Advisors or its affiliates exercise investment discretion. Nuveen Fund Advisors and Nuveen Asset Management are authorized to pay a broker or dealer who provides such brokerage and research services a commission for executing a portfolio transaction for the Fund which is in excess of the amount of commission another broker or dealer would have charged for effecting that transaction if Nuveen Fund Advisors or Nuveen Asset Management, as applicable, determines in good faith that such amount of commission is reasonable in relation to the value of the brokerage and research services provided by such broker or dealer. Investment research services include information and analysis on particular companies and industries as well as market or economic trends and portfolio strategy, market quotations for portfolio evaluations, analytical software and similar products and services. If a research service also assists Nuveen Fund Advisors or Nuveen Asset Management in a non-research capacity (such as bookkeeping or other administrative functions), then only the percentage or component that provides assistance to Nuveen Fund Advisors or Nuveen Asset Management in the investment decision making process may be paid in commission dollars. This determination may be viewed in terms of either that particular transaction or the overall responsibilities that Nuveen Fund Advisors or Nuveen Asset Management, as applicable, and its affiliates have with respect to accounts over which they exercise investment discretion. Nuveen Fund Advisors or Nuveen Asset Management may also have arrangements with brokers pursuant to which such brokers provide research services to Nuveen Fund Advisors or Nuveen Asset Management, as applicable, in exchange for a certain volume of brokerage transactions to be executed by such brokers. While the payment of higher commissions increases the Fund’s costs, Nuveen Fund Advisors and Nuveen Asset Management do not believe that the receipt of such brokerage and research services significantly reduces the expenses of Nuveen Fund Advisors or Nuveen Asset Management, as applicable. Arrangements for the receipt of research services from brokers may create conflicts of interest.

Research services furnished to Nuveen Fund Advisors or Nuveen Asset Management by brokers that effect securities transactions for the fund may be used by Nuveen Fund Advisors or Nuveen Asset Management, as applicable, in servicing other investment companies and accounts which it manages. Similarly, research services furnished to Nuveen Fund Advisors or Nuveen Asset Management by brokers who effect securities transactions for other investment companies and accounts which Nuveen Fund Advisors or Nuveen Asset Management manages may be used by Nuveen Fund Advisors or Nuveen Asset Management, as applicable, in servicing the Fund. Not all of these research services are used by Nuveen Fund Advisors or Nuveen Asset Management in managing any particular account, including the Fund.

The Fund contemplates that, consistent with the policy of obtaining the best net results, brokerage transactions may be conducted through “affiliated broker/dealers,” as defined in the 1940 Act. The Board of Trustees has adopted procedures in accordance with Rule 17e-1 under the 1940 Act to ensure that all brokerage commissions paid to such affiliates are reasonable and fair in the context of the market in which such affiliates operate.

In certain instances there may be securities that are suitable as an investment for the Fund as well as for one or more of Nuveen Fund Advisors’ or Nuveen Asset Management’s other clients. Investment decisions for the Fund and for Nuveen Fund Advisors’ or Nuveen Asset Management’s other clients are made with a view to

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achieving their respective investment objectives. It may develop that a particular security is bought or sold for only one client even though it might be held by, or bought or sold for, other clients. Likewise, a particular security may be bought for one or more clients when one or more clients are selling the same security. Some simultaneous transactions are inevitable when several clients receive investment advice from the same investment adviser, particularly when the same security is suitable for the investment objectives of more than one client. When two or more clients are simultaneously engaged in the purchase or sale of the same security, the securities are allocated among clients in a manner believed to be equitable to each. It is recognized that in some cases this system could adversely affect the price of or the size of the position obtainable in a security for the Fund. When purchases or sales of the same security for the Fund and for other portfolios managed by Nuveen Fund Advisors or Nuveen Asset Management, as applicable, occur contemporaneously, the purchase or sale orders may be aggregated in order to obtain any price advantages available to large volume purchases or sales.

Although the Fund does not have any restrictions on portfolio turnover, it is not the Fund’s policy to engage in transactions with the objective of seeking profits from short-term trading. For the fiscal period ended March 31, 2022, the Fund’s portfolio turnover rate was 88%. The portfolio turnover rate is calculated by dividing the lesser of sales or purchases of portfolio securities by the average monthly value of the Fund’s portfolio securities. For purposes of this calculation, portfolio securities exclude all securities having a maturity when purchased of one year or less. A high rate of portfolio turnover involves correspondingly greater transaction costs than a lower rate, which costs are borne by the Fund and its shareholders.

Substantially all of the Fund’s trades are effected on a principal basis. The following table sets forth the aggregate amount of brokerage commissions paid by the Fund for the period indicated below.