Investment Strategies and Risks

Set forth below are detailed descriptions of the various types of securities and investment techniques that Invesco and/or the Sub-Advisers (as defined herein) may use in managing the Fund, as well as the risks associated with those types of securities and investment techniques. The descriptions of the types of securities and investment techniques below supplement the discussion of principal investment strategies and risks contained in the Fund’s Prospectus. Where a particular type of security or investment technique is not discussed in the Fund’s Prospectus, that security or investment technique is not a principal investment strategy.

Unless otherwise indicated, the Fund may invest in all of the following types of investments. The Fund may not invest in all of the types of securities or use all of the investment techniques described below, and the Fund might not invest in all of these types of securities or use all of these techniques at any one time. Invesco and/or the Sub-Advisers may invest in other types of securities and may use other investment techniques in managing the Fund, as well as securities and techniques not described. The Fund’s transactions in a particular type of security or use of a particular technique is subject to limitations imposed by the Fund’s investment objective(s), policies and restrictions described in the Fund’s Prospectus and/or this SAI, as well as the federal securities laws.

Any percentage limitations relating to the composition of the Fund’s portfolio identified in the Fund’s Prospectus or this SAI apply at the time the Fund acquires an investment. Subsequent changes that result from market fluctuations generally will not require the Fund to sell any portfolio security. However, the Fund may sell its illiquid securities holdings, or reduce its borrowings, if any, in response to fluctuations in the value of such holdings.

The Fund’s investment objectives, policies, strategies and practices described below are non-fundamental and may be changed without approval of the holders of the Fund’s voting securities, unless otherwise indicated.

Debt Investments

U.S. Government Obligations. The Fund may invest in U.S. Government obligations, which are obligations issued or guaranteed by the U.S. Government, its agencies and instrumentalities, and include bills, notes and bonds issued by the U.S. Treasury, as well as “stripped” or “zero coupon” U.S. Treasury obligations.

U.S. Government obligations may be, (i) supported by the full faith and credit of the U.S. Treasury, (ii) supported by the right of the issuer to borrow from the U.S. Treasury, (iii) supported by the discretionary authority of the U.S. Government to purchase the agency’s obligations, or (iv) supported only by the credit of the instrumentality. There is a risk that the U.S. Government may choose not to provide financial support to U.S. Government-sponsored agencies or instrumentalities if it is not legally obligated to do so. In that case, if the issuer were to default, the Fund holding securities of such issuer might not be able to recover its investment from the U.S. Government. For example, while the U.S. Government has provided financial support to Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC), no assurance can be given that the U.S. Government will always do so, since the U.S. Government is not so obligated by law. There also is no guarantee that the government would support Federal Home Loan Banks. Accordingly, securities of FNMA, FHLMC and Federal Home Loan Banks, and other agencies, may involve a risk of non-payment of principal and interest. Any downgrade of the credit rating of the securities issued by the U.S. Government may result in a downgrade of securities issued by its agencies or instrumentalities, including government-sponsored entities.

Temporary Investments. The Fund may experience situations where it is unable to invest money that it has received overnight. The Fund is permitted to leave balances in its accounts with the Bank of New York Mellon (BNY Mellon), the custodian bank. To compensate the Fund for such activity, the Fund may receive compensation from BNY Mellon at an agreed upon rate.

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Rule 2a-7 Requirements

As permitted by Rule 2a-7 under the 1940 Act, the Fund seeks to maintain a stable price of $1.00 per share by using the amortized cost method to value portfolio securities and rounding the share value to the nearest cent. Rule 2a-7 imposes requirements as to the diversification of the Fund, quality of portfolio securities, maturity of the Fund and of individual securities and liquidity of the Fund.

The Fund intends to qualify as a “Retail Money Market Fund,” as defined by Rule 2a-7. As a Retail Money Market Fund, the Fund (1) will be permitted to use the amortized cost method of valuation to seek to maintain a $1.00 share price, (2) may be subject to a liquidity fee and/or a redemption gate on fund redemptions should certain triggering events specified in Rule 2a-7 occur; and (3) will be limited to investments by natural persons. For more information on shareholder eligibility, please see the Fund’s prospectus. Institutional money market funds may also be subject to a liquidity fee and/or a redemption gate on fund redemptions should certain triggering events specified in Rule 2a-7 occur. For more information on liquidity fees and redemptions, see “Appendix K — Purchase, Redemption and Pricing of Shares” below.

Diversification. In summary, Rule 2a-7 requires that a money market fund may not invest in the securities of any issuer if, as a result, more than 5% of the Fund’s total assets would be invested in that issuer; provided that, the Fund may invest up to 25% of its total assets in the First Tier securities of a single issuer for up to three business days after acquisition. Certain securities are not subject to this diversification requirement. These include: Government Securities; certain repurchase agreements; and shares of certain money market funds. Rule 2a-7 imposes a separate diversification test upon the acquisition of a guarantee or demand feature. (A demand feature is, in summary, a right to sell a security at a price equal to its approximate amortized cost plus accrued interest). Government Security generally means any security issued or guaranteed as to principal or interest by the U.S. Government or certain of its agencies or instrumentalities; or any certificate of deposit for any of the foregoing.

For purposes of these diversification requirements with respect to issuers of Municipal Securities (defined under the caption Municipal Securities), each state (including the District of Columbia and Puerto Rico), territory and possession of the United States, each political subdivision, agency, instrumentality, and authority thereof, and each multi-state agency of which a state is a member is a separate “issuer.” When the assets and revenues of an agency, authority, instrumentality, or other political subdivision are separate from the government creating the subdivision and the security is backed only by assets and revenues of the subdivision, such subdivision would be deemed to be the sole issuer. Similarly, in the case of an industrial development bond or private activity bond, if such bond is backed only by the assets and revenues of the non-governmental user, then such non-governmental user would be deemed to be the sole issuer.

Quality. The Fund may invest only in U.S. dollar denominated securities that are “Eligible Securities” as defined in Rule 2a-7. Rule 2a-7 defines an Eligible Security, in summary, as a security with a remaining maturity of 397 calendar days or less that the Fund’s investment adviser (subject to oversight and pursuant to guidelines established by the Board) determines present minimal credit risk to the Fund. The eligibility of a security with a guarantee may be determined based on whether the guarantee is an Eligible Security.

The Fund will limit investments to those which are Eligible Securities at the time of acquisition.

Maturity. Under Rule 2a-7, the Fund may invest only in U.S. dollar-denominated securities maturing within 397 days of the date of purchase, with certain exceptions permitted by applicable regulations. The Fund maintains a dollar-weighted average portfolio maturity of no more than 60 days, and a dollar-weighted average portfolio maturity as determined without exceptions regarding certain interest rate adjustments under Rule 2a-7 of no more than 120 days. The maturity of a security is determined in compliance with Rule 2a-7, which for purposes of the dollar-weighted average portfolio

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maturity permits, among other things, certain securities bearing adjustable interest rates to be deemed to have a maturity shorter than their stated maturity.

Liquidity. The Fund will hold securities that are sufficiently liquid to meet reasonably foreseeable shareholder redemptions in light of the Fund’s obligations under section 22(e) of the 1940 Act (which forbids the suspension of the right of redemption, or postponement of the date of payment or satisfaction upon redemption for more than seven days after the tender of such security for redemption, subject to specified exemptions) and any commitments the Fund has made to shareholders. In addition, the Fund will not acquire an illiquid security if, immediately after the acquisition, the Fund would have invested more than 5% of its total assets in illiquid securities. The Fund will not acquire any security other than a Weekly Liquid Asset (in summary cash, direct obligations of the U.S. Government, Government Securities issued by a person controlled or supervised by and acting as an instrumentality of the U.S. Government pursuant to authority granted by the Congress, that are issued at a discount to the principal amount to be repaid at maturity and have a remaining maturity of 60 days or less, securities that will mature or are subject to a demand feature that is exercisable and payable within 5 business days and, under rule amendments, amounts receivable and unconditionally due within 5 business days on pending sales of portfolio securities) if, immediately after the acquisition, the Fund would have invested less than 30% of its total assets in Weekly Liquid Assets.

Credit Linked Notes (CLNs). A CLN is a security structured and issued by an issuer, which may be a bank, broker or special purpose vehicle. If a CLN is issued by a special purpose vehicle, the special purpose vehicle will typically be collateralized by AAA-rated securities, but some CLNs are not collateralized. The performance and payment of principal and interest is tied to that of a reference obligation which may be a particular security, basket of securities, credit default swap, basket of credit default swaps, or index. The reference obligation may be denominated in foreign currencies. Risks of CLNs include those risks associated with the underlying reference obligation including but not limited to market risk, interest rate risk, credit risk, default risk and foreign currency risk. In the case of a CLN created with credit default swaps, the structure will be “funded” such that the par amount of the security will represent the maximum loss that could be incurred on the investment and no leverage is introduced. An investor in a CLN also bears counterparty risk or the risk that the issuer of the CLN will default or become bankrupt and not make timely payment of principal and interest of the structured security. Should the issuer default or declare bankruptcy, the credit linked note holder may not receive any compensation. In return for these risks, the credit linked note holder receives a higher yield. As with most derivative instruments, valuation of a CLN may be difficult due to the complexity of the security.

Bank Instruments. The Fund may invest in bank instruments. Bank instruments are unsecured interest bearing bank deposits. Bank instruments include, but are not limited to, certificates of deposit, time deposits, and banker’s acceptances from U.S. or foreign banks as well as Eurodollar certificates of deposit (Eurodollar CDs) and Eurodollar time deposits of foreign branches of domestic banks. Some certificates of deposit are negotiable interest-bearing instruments with a specific maturity issued by banks and savings and loan institutions in exchange for the deposit of funds, and can typically be traded in the secondary market prior to maturity. Other certificates of deposit, like time deposits, are non-negotiable receipts issued by a bank in exchange for the deposit of funds which earns a specified rate of interest over a definite period of time; however, it cannot be traded in the secondary market. A bankers’ acceptance is a bill of exchange or time draft drawn on and accepted by a commercial bank.

An investment in Eurodollar CDs or Eurodollar time deposits may involve some of the same risks that are described for Foreign Securities.

Commercial Instruments. The Fund may invest in commercial instruments, including commercial paper, master notes and other short-term corporate instruments, that are denominated in U.S. dollars or foreign currencies.

Commercial instruments are a type of instrument issued by large banks and corporations to raise money to meet their short term debt obligations, and are only backed by the issuing bank or corporation’s promise to pay the face amount on the maturity date specified on the note. Commercial paper consists of

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short-term promissory notes issued by corporations. Commercial paper may be traded in the secondary market after its issuance. Master notes are demand notes that permit the investment of fluctuating amounts of money at varying rates of interest pursuant to arrangements with issuers who meet the credit quality criteria of the Fund. The interest rate on a master note may fluctuate based on changes in specified interest rates or may be reset periodically according to a prescribed formula or may be a set rate. Although there is no secondary market in master demand notes, if such notes have a demand feature, the payee may demand payment of the principal amount of the note upon relatively short notice. Master notes are generally illiquid and therefore typically subject to the Fund’s percentage limitations for investments in illiquid securities. Commercial instruments may not be registered with the U.S. Securities and Exchange Commission (SEC).

Synthetic Municipal Instruments. The Fund may invest in synthetic municipal instruments, the value of and return on which are derived from underlying securities. The types of synthetic municipal instruments in which the Fund may invest include tender option bonds, and fixed and variable rate trust certificates. These types of instruments involve the deposit into a trust or custodial account of one or more long-term tax-exempt bonds or notes (Underlying Bonds), and the sale of certificates evidencing interests in the trust or custodial account to investors such as the Fund. The trustee or custodian receives the long-term fixed rate interest payments on the Underlying Bonds, and pays certificate holders fixed rates or short-term floating or variable interest rates which are reset periodically. A “tender option bond” provides a certificate holder with the conditional right to sell its certificate to the sponsor or some designated third party at specified intervals and receive the par value of the certificate plus accrued interest (a demand feature). A “fixed rate trust certificate” evidences an interest in a trust entitling a certificate holder to future interest and/or principal payments on the Underlying Bonds. A “variable rate trust certificate” evidences an interest in a trust entitling the certificate holder to receive variable rate interest based on prevailing short-term interest rates and also typically provides the certificate holder with the conditional demand feature (the right to tender its certificate at par value plus accrued interest under certain conditions).

Typically, a certificate holder cannot exercise the demand feature until the occurrence of certain conditions, such as where the issuer of the Underlying Bond defaults on interest payments. Moreover, because synthetic municipal instruments involve a trust or custodial account and a third party conditional demand feature, they involve complexities and potential risks that may not be present where a municipal security is owned directly.

The tax-exempt character of the interest paid to certificate holders is based on the assumption that the holders have an ownership interest in the Underlying Bonds; however, the Internal Revenue Service (IRS) has not issued a ruling addressing this issue. In the event the IRS issues an adverse ruling or successfully litigates this issue, it is possible that the interest paid to the Fund on certain synthetic municipal instruments would be deemed to be taxable. The Fund relies on opinions of special tax counsel on this ownership question and opinions of bond counsel regarding the tax-exempt character of interest paid on the Underlying Bonds.

Municipal Securities. The Fund may invest in Municipal Securities, which are typically debt obligations of states, territories or possessions of the United States and the District of Columbia and their political subdivisions, agencies and instrumentalities, the interest on which, in the opinion of bond counsel or other counsel to the issuers of such securities, is, at the time of issuance, exempt from federal income tax. The issuers of municipal securities obtain funds for various public purposes, including the construction of a wide range of public facilities such as airports, highways, bridges, schools, hospitals, housing, mass transportation, streets and water and sewer works. Other public purposes for which municipal securities may be issued include refunding outstanding obligations, obtaining funds for general operating expenses and obtaining funds to lend to other public institutions and facilities. Certain types of municipal securities are issued to obtain funding for privately operated facilities. The credit and quality of private activity debt securities are dependent on the private facility or user, who is responsible for the interest payment and principal repayment.

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The two major classifications of Municipal Securities are bonds and notes. Municipal bonds are municipal debt obligations in which the issuer is obligated to repay the original (or “principal”) payment amount on a certain maturity date along with interest. A municipal bond’s maturity date (the date when the issuer of the bond repays the principal) may be years in the future. Short-term bonds mature in one to three years, while long-term bonds usually do not mature for more than a decade. Notes are short-term instruments which usually mature in less than two years. Most notes are general obligations of the issuing municipalities or agencies and are sold in anticipation of a bond sale, collection of taxes or receipt of other revenues. Municipal notes also include tax, revenue notes and revenue and bond anticipation notes (discussed more fully below) of short maturity, generally less than three years, which are issued to obtain temporary funds for various public purposes.

Municipal debt securities may be also be classified as general obligation or revenue obligations (or “special delegation securities”). General obligation securities are secured by the issuer’s pledge of its faith, credit and taxing power for the payment of principal and interest.

Revenue debt obligations, such as revenue bonds and revenue notes, are usually payable only from the revenues derived from a particular facility or class of facilities or, in some cases, from the proceeds of a special excise tax or other specific revenue source but not from the general taxing power. The principal and interest payments for industrial development bonds or pollution control bonds are often the sole responsibility of the industrial user and therefore may not be backed by the taxing power of the issuing municipality. The interest paid on such bonds may be exempt from federal income tax, although current federal tax laws place substantial limitations on the purposes and size of such issues. Such obligations are considered to be Municipal Securities provided that the interest paid thereon, in the opinion of bond counsel, qualifies as exempt from federal income tax.

Another type of revenue obligation is pre-refunded bonds, which are typically issued to refinance debt. In other words, pre-refunded bonds result from the advance refunding of bonds that are not currently redeemable. The proceeds from the issue of the lower yield and/or longer maturing pre-refunding bond will usually be used to purchase U.S. Government obligations, such as U.S. Treasury securities, which are held in an escrow account and used to pay interest and principal payments until the scheduled call date of the original bond issue occurs. Like other fixed income securities, pre-refunded bonds are subject to interest rate, market, credit, and reinvestment risks.

Within these principal classifications of municipal securities, there are a variety of types of municipal securities, including but not limited to, fixed and variable rate securities, variable rate demand notes, municipal leases, custodial receipts, participation certificates, inverse floating rate securities, and derivative municipal securities.

Variable rate securities bear rates of interest that are adjusted periodically according to formulae intended to reflect market rates of interest.

Variable rate demand notes are obligations which contain a floating or variable interest rate adjustment formula and which are subject to a right of demand for payment of the principal balance plus accrued interest either at any time or at specified intervals. The interest rate on a variable rate demand note may be based on a known lending rate, such as a bank’s prime rate, and may be adjusted when such rate changes or the interest rate may be a market rate that is adjusted at specified intervals. The adjustment formula maintains the value of the variable rate demand note at approximately the par value of such note at the adjustment date.

Inverse floating rate obligations are variable rate debt instruments that pay interest at rates that move in the opposite direction of prevailing interest rates. Because the interest rate paid to holders of such obligations is generally determined by subtracting a variable or floating rate from a predetermined amount, the interest rate paid to holders of such obligations will decrease as such variable or floating rate increases and increase as such variable or floating rate decreases. The inverse floating rate obligations in which the Fund may invest include derivative instruments such as residual interest bonds, tender option bonds (TOBs) or municipal bond trust certificates. Such instruments are typically created by a

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special purpose trust (the TOB Trust) that holds long-term fixed rate bonds, which are contributed by the Fund (the underlying security), and sells two classes of beneficial interests: short-term floating rate interests, which are sold to or held by third party investors (Floaters), and inverse floating residual interests, which are purchased by the Fund (Residuals). The Floaters have first priority on the cash flow from the bonds held by the TOB Trust and the Fund (as holder of the Residuals) is paid the residual cash flow from the bonds held by the TOB Trust. Like most other fixed-income securities, the value of inverse floating rate obligations will decrease as interest rates increase. They are more volatile, however, than most other fixed-income securities because the coupon rate on an inverse floating rate obligation typically changes at a multiple of the change in the relevant index rate. Thus, any rise in the index rate (as a consequence of an increase in interest rates) causes a correspondingly greater drop in the coupon rate of an inverse floating rate obligation while a drop in the index rate causes a correspondingly greater increase in the coupon of an inverse floating rate obligation. Some inverse floating rate obligations may also increase or decrease substantially because of changes in the rate of prepayments. Inverse floating rate obligations tend to underperform the market for fixed rate bonds in a rising interest rate environment, but tend to outperform the market for fixed rate bonds when interest rates decline or remain relatively stable. Inverse floating rate obligations have varying degrees of liquidity. The Fund generally invests in inverse floating rate obligations that include embedded leverage, thus exposing the Fund to greater risks and increased costs. The market value of “leveraged” inverse floating rate obligations generally will fluctuate in response to changes in market rates of interest to a greater extent than the value of an unleveraged investment. The extent of increases and decreases in the value of inverse floating rate obligations generally will be larger than changes in an equal principal amount of a fixed rate security having similar credit quality, redemption provisions and maturity, which may cause the Fund’s net asset value to be more volatile than if it had not invested in inverse floating rate obligations. The use of short-term floating rate obligations may require the Fund to segregate or earmark cash or liquid assets to cover its obligations. Securities so segregated or earmarked will be unavailable for sale by the Fund (unless replaced by other securities qualifying for segregation requirements), which may limit the Fund’s flexibility and may require that the Fund sell other portfolio investments at a time when it may be disadvantageous to sell such assets.

A TOB transaction typically provides for the automatic termination or “collapse” of a TOB Trust upon the occurrence of mandatory tender events (MTEs) or tender option termination events (TOTEs), as defined in the TOB Trust agreements. MTEs and TOTEs include, among other events, a credit ratings downgrade of the underlying security below a specified level, a decrease in the market value of the underlying security below a specified amount, a bankruptcy of the liquidity provider, or the inability of the Floaters to be sold to third parties or, in the case of holders tendering (or putting) their interests for repayment of principal, the inability to be remarketed to third parties. Following such an event, the underlying security is generally sold for current market value and the proceeds distributed to holders of the Floaters and Residuals, with the holder of the Residuals generally receiving the proceeds of such sale only after the holders of the Floaters have received proceeds equal to the purchase price of their securities (and the liquidity provider is generally required to contribute cash to the TOB Trust only in an amount sufficient to ensure that holders of the Floaters receive the purchase price for their securities in connection with such termination of the TOB Trust, in which instance the Fund may have an obligation to reimburse the liquidity provider, as described below). The sale of the underlying security following such an event could be at an adverse price that might result in the loss by the Fund of a substantial portion, or even all, of its investment in the related Residuals. In addition, the Fund may enter into reimbursement agreements with the liquidity provider of certain TOB transactions in connection with certain Residuals held by the Fund. These agreements commit the Fund to reimburse the liquidity provider to the extent that the liquidity provider must provide cash to a TOB Trust, including following the termination of a TOB Trust resulting from the occurrence of an MTE (Liquidity Shortfall). In connection with the occurrence of an MTE and the termination of the TOB Trust triggered thereby, the reimbursement agreement will effectively make the Fund liable for the amount of the negative difference, if any, between the liquidation value of the underlying security and the purchase price of the Floaters issued by the TOB Trust. Under the standard terms of a TOB transaction, absent a reimbursement agreement, the Fund, as holder of the Residuals, would not be required to make such a reimbursement payment to the liquidity provider.

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Final rules implementing section 619 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (commonly known as the “Volcker Rule”) prohibit banking entities from engaging in proprietary trading of certain instruments and limit such entities’ investments in, and relationships with, “covered funds,” as defined in the rules. These rules may preclude banking entities and their affiliates from sponsoring and/or providing services for existing TOB Trusts. To ensure compliance with the Volcker Rule, TOB market participants, including the Fund and the Adviser, have developed a new TOB structure wherein the Fund, as holder of the Residuals, will perform certain duties previously performed by banking entities as “sponsors” of TOB Trusts. These duties may be performed on behalf of the Fund by a third-party service provider. The Fund’s enhanced role under the new TOB structure may increase the Fund’s operational and regulatory risk. The new structure is substantially similar to the current structure. However, pursuant to the Volcker Rule the remarketing agent would not be able to repurchase tendered Floaters for its own account upon a failed remarketing. In the event of a failed remarketing, a banking entity serving as liquidity provider may loan the necessary funds to the TOB Trust to purchase the tendered Floaters. The TOB Trust, not the Fund, would be the borrower and the loan from the liquidity provider will be secured by the purchased Floaters now held by the TOB Trust. However, as previously described, the Fund would bear the risk of loss with respect to any Liquidity Shortfall to the extent it entered into a reimbursement agreement with the liquidity provider.

Certain of the TOB Trusts that issue Residuals held by the Fund have been migrated to the new structure, and all of the TOB Trusts that issue Residuals held by the Fund will be required to do so by July 21, 2016 to ensure compliance with the terms of the Volcker Rule. There can be no assurances that the new TOBs structure will continue to be a viable option for leverage, or that all of the Residuals held by the Fund will continue to be held by the Fund as of the compliance date. Further, there can be no assurances that alternative forms of leverage will be available to the Fund in order to maintain current levels of leverage. Any alternative forms of leverage may be less advantageous to the Fund and may adversely affect the Fund’s net asset value, distribution rate and ability to achieve its investment objective. The ultimate impact of these rules on the inverse floating rate obligation market and the municipal market generally is not yet certain.

Certificates of participation (or “Participation certificates”) are obligations issued by state or local governments or authorities to finance the acquisition of equipment and facilities. They may represent participations in a lease, an installment purchase contract or a conditional sales contract. These participation interests may give the purchaser an undivided interest in one or more underlying Municipal Securities. Municipal securities may not be backed by the faith, credit and taxing power of the issuer.

Custodial receipts are underwritten by securities dealers or banks and evidence ownership of future interest payments, principal payments or both on certain municipal securities.

Municipal leases are obligations issued by state and local governments or authorities to finance the acquisition of equipment and facilities. Municipal lease obligations, another type of Municipal Security, may take the form of a lease, an installment purchase contract or a conditional sales contract. Municipal lease obligations are issued by state and local governments and authorities to acquire land, equipment and facilities such as state and municipal vehicles, telecommunications and computer equipment, and other capital assets. Interest payments on qualifying municipal lease obligations are generally exempt from federal income taxes. Municipal lease obligations are generally subject to greater risks than general obligation or revenue bonds. State laws set forth requirements that states or municipalities must meet in order to issue municipal obligations, and such obligations may contain a covenant by the issuer to budget for, appropriate, and make payments due under the obligation. However, certain municipal lease obligations may contain “non-appropriation” clauses which provide that the issuer is not obligated to make payments on the obligation in future years unless funds have been appropriated for this purpose each year. If not enough money is appropriated to make the lease payments, the leased property may be repossessed as security for holders of the municipal lease obligation. In such an event, there is no assurance that the property’s private sector or re-leasing value will be enough to make all outstanding payments on the municipal lease obligation or that the payments will continue to be tax-free. Additionally, it may be difficult to dispose of the underlying capital asset in the event of non-appropriation or other default. Direct investments by the Fund in municipal lease obligations

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may be deemed illiquid and therefore subject to the Fund’s percentage limitations for investments in illiquid securities and the risks of holding illiquid securities.

A municipal forward contract is a Municipal Security which is purchased on a when-issued basis with longer-than-standard settlement dates, in some cases taking place up to five years from the date of purchase. The buyer, in this case the Fund, will execute a receipt evidencing the obligation to purchase the bond on the specified issue date, and must segregate cash to meet that forward commitment.

Municipal forward contracts typically carry a substantial yield premium to compensate the buyer for the risks associated with a long when-issued period, including shifts in market interest rates that could materially impact the principal value of the bond, deterioration in the credit quality of the issuer, loss of alternative investment options during the when-issued period and failure of the issuer to complete various steps required to issue the bonds.

Municipal Securities also include the following securities:

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The Fund may purchase and sell securities on a when-issued and delayed delivery basis whereby the Fund buys or sells a security with payment and delivery taking place in the future. The payment obligation and the interest rate are fixed at the time the Fund enters into the commitment. No income accrues on such securities until the date the Fund actually takes delivery of such securities. These transactions are subject to market risk as the value or yield of a security at delivery may be more or less than the purchase price or the yield generally available on securities when delivery occurs. In addition, the Fund is subject to counterparty risk because it relies on the buyer or seller, as the case may be, to consummate the transaction, and failure by the other party to complete the transaction may result in the Fund missing the opportunity of obtaining a price or yield considered to be advantageous. The Fund will only make commitments to purchase such securities with the intention of actually acquiring these securities, but the Fund may sell these securities prior to settlement if it is deemed advisable. No specific limitation exists as to the percentage of the Fund’s assets which may be used to acquire securities on a when-issued and delayed delivery basis.

After purchase by the Fund, an issue of Municipal Securities may cease to be rated by Moody’s Investors Service, Inc. (Moody’s) or Standard and Poor’s Ratings Services (S&P), or another nationally recognized statistical rating organization (NRSRO), or the rating of such a security may be reduced below the minimum credit quality rating required for purchase by the Fund. Neither event would require the Fund to dispose of the security.

The yields on Municipal Securities are dependent on a variety of factors, including general economic and monetary conditions, money market factors, conditions of the Municipal Securities market, size of a particular offering, and maturity and rating of the obligation. Because many Municipal Securities are issued to finance similar projects, especially those related to education, health care, transportation and various utilities, conditions in those sectors and the financial condition of an individual municipal issuer can affect the overall municipal market. The market values of the Municipal Securities held by the Fund will be affected by changes in the yields available on similar securities. If yields increase following the purchase of a Municipal Security, the market value of such Municipal Security will generally decrease. Conversely, if yields decrease, the market value of a Municipal Security will generally increase. The ratings of S&P and Moody’s represent their opinions of the quality of the municipal securities they undertake to rate. It should be emphasized, however, that ratings are general and are not absolute standards of quality. Consequently, municipal securities with the same maturity, coupon and rating may have different yields while municipal securities of the same maturity and coupon with different ratings may have the same yield.

Certain of the municipal securities in which the Fund may invest represent relatively recent innovations in the municipal securities markets and the markets for such securities may be less developed than the market for conventional fixed rate municipal securities.

Under normal market conditions, longer-term municipal securities generally provide a higher yield than shorter-term municipal securities. The Fund has no limitation as to the maturity of municipal securities in which they may invest. The Adviser may adjust the average maturity of the Fund’s portfolio from time to time depending on its assessment of the relative yields available on securities of different maturities and its expectations of future changes in interest rates.

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The net asset value of the Fund will change with changes in the value of its portfolio securities. Since the Fund invests primarily in fixed income municipal securities, the net asset value of the Fund can be expected to change as general levels of interest rates fluctuate. When interest rates decline, the value of a portfolio invested in fixed income securities generally can be expected to rise. Conversely, when interest rates rise, the value of a portfolio invested in fixed income securities generally can be expected to decline. The prices of longer term municipal securities generally are more volatile with respect to changes in interest rates than the prices of shorter term municipal securities. Volatility may be greater during periods of general economic uncertainty.

Municipal securities, like other debt obligations, are subject to the credit risk of nonpayment. The ability of issuers of municipal securities to make timely payments of interest and principal may be adversely impacted in general economic downturns and as relative governmental cost burdens are allocated and reallocated among federal, state and local governmental units. Such nonpayment would result in a reduction of income to the Fund, and could result in a reduction in the value of the municipal securities experiencing nonpayment and a potential decrease in the net asset value of the Fund. In addition, the Fund may incur expenses to work out or restructure a distressed or defaulted security.

The Fund may invest in Municipal Securities with credit enhancements such as letters of credit and municipal bond insurance. The Fund may invest in Municipal Securities that are insured by financial insurance companies. Since a limited number of entities provide such insurance, the Fund may invest more than 25% of its assets in securities insured by the same insurance company. If the Fund invests in Municipal Securities backed by insurance companies and other financial institutions, changes in the financial condition of these institutions could cause losses to the Fund and affect share price. Letters of credit are issued by a third party, usually a bank, to enhance liquidity and ensure repayment of principal and any accrued interest if the underlying Municipal Bond should default. These credit enhancements do not guarantee payments or repayments on the Municipal Securities and a downgrade in the credit enhancer could affect the value of the Municipal Security.

If the IRS determines that an issuer of a Municipal Security has not complied with applicable tax requirements, interest from the security could be treated as taxable, which could result in a decline in the security’s value. In addition, there could be changes in applicable tax laws or tax treatments that reduce or eliminate the current federal income tax exemption on Municipal Securities or otherwise adversely affect the current federal or state tax status of Municipal Securities.

The Fund may invest in taxable municipal securities, including taxable municipal bonds. Taxable municipal securities are debt securities issued by or on behalf of states and their political subdivisions, the District of Columbia, and possessions of the United States, the interest on which is not exempt from federal income tax.

Investment Grade Debt Obligations. The Fund may invest in U.S. dollar-denominated debt obligations issued or guaranteed by U.S. corporations or U.S. commercial banks and U.S. dollar-denominated obligations of foreign issuers. Debt obligations include, among others, bonds, notes, debentures and variable rate demand notes.

The Adviser considers investment grade securities to include: (i) securities rated BBB- or higher by S&P or Baa3 or higher by Moody’s or an equivalent rating by another NRSRO, (ii) comparably rated short term securities, or (iii) unrated securities determined by the Adviser to be of comparable quality, each at the time of purchase. Descriptions of debt securities ratings are found in Appendix A.

In choosing corporate debt securities on behalf of the Fund, portfolio managers may consider:

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Debt securities are subject to a variety of risks, such as interest rate risk, income risk, prepayment risk, inflation risk, credit risk, currency risk and default risk.

Floating Rate Corporate Loans and Corporate Debt Securities . Floating rate loans consist generally of obligations of companies and other entities (collectively, borrower) incurred for the purpose of reorganizing the assets and liabilities of a borrower; acquiring another company; taking over control of a company (leveraged buyout); temporary refinancing; or financing internal growth or other general business purposes. Floating rate loans are often obligations of borrowers who have incurred a significant percentage of debt compared to equity issued and thus are highly leveraged. Floating rate loans may include both term loans, which are generally fully funded at the time of the Fund’s investment, and revolving loans, which may require the Fund to make additional investments in the loans as required under the terms of the loan agreement. A revolving credit loan agreement may require the Fund to increase its investment in a loan at a time when the Fund might not otherwise have done so, even if the borrower’s condition makes it unlikely that the loan will be repaid.

A floating rate loan is generally offered as part of a lending syndicate to banks and other financial institutions and is administered in accordance with the terms of the loan agreement by an agent bank who is responsible for collection of principal and interest and fee payments from the borrower and apportioning those payments to all lenders who are parties to the agreement. Typically, the agent is given broad discretion to enforce the loan agreement and is compensated by the borrower for its services.

Floating rate loans may be acquired by direct investment as a lender at the inception of the loan or by assignment of a portion of a floating rate loan previously made to a different lender or by purchase of a participation interest. If the Fund makes a direct investment in a loan as one of the lenders, it generally acquires the loan at par. This means the Fund receives a return at the full interest rate for the loan. If the Fund acquires its interest in loans in the secondary market or acquires a participation interest, the loans may be purchased or sold above, at, or below par, which can result in a yield that is below, equal to, or above the stated interest rate of the loan. At times, the Fund may be able to invest in floating rate loans only through assignments or participations.

A participation interest represents a fractional interest in a floating rate loan held by the lender selling the Fund the participation interest. In the case of participations, the Fund will not have any direct contractual relationship with the borrower, the Fund’s rights to consent to modifications of the loan are limited and it is dependent upon the participating lender to enforce the Fund’s rights upon a default.

The Fund may be subject to the credit of both the agent and the lender from whom the Fund acquires a participation interest.

Historically, floating rate loans have not been registered with the SEC or any state securities commission or listed on any securities exchange. As a result, the amount of public information available about a specific floating rate loan has been historically less extensive than if the floating rate loan were registered or exchange traded.

Floating rate debt securities are typically in the form of notes or bonds issued in public or private placements in the securities markets. Floating rate debt securities will typically have substantially similar terms to floating rate loans, but will not be in the form of participations or assignments.

The floating rate loans and debt securities in which the Fund invests will, in most instances, be secured and senior to other indebtedness of the borrower. Each floating rate loan and debt security will generally be secured by collateral such as accounts receivable, inventory, equipment, real estate, intangible assets such as trademarks, copyrights and patents, and securities of subsidiaries or affiliates. The value of the collateral generally will be determined by reference to financial statements of the borrower, by an independent appraisal, by obtaining the market value of such collateral, in the case of cash or securities if readily ascertainable, or by other customary valuation techniques considered

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appropriate by Invesco and/or the Sub-Advisers. The value of collateral may decline after the Fund’s investment, and collateral may be difficult to sell in the event of default. Consequently, the Fund may not receive all the payments to which it is entitled. The Fund’s assets may be invested in unsecured floating rate loans and debt securities or subordinated floating rate loans and debt securities, which may or may not be secured. If the borrower defaults on an unsecured loan or security, there is no specific collateral on which the lender can foreclose. If the borrower defaults on a subordinated loan or security, the collateral may not be sufficient to cover both the senior and subordinated loans and securities.

Most borrowers pay their debts from cash flow generated by their businesses. If a borrower’s cash flow is insufficient to pay its debts, it may attempt to restructure its debts rather than sell collateral. Borrowers may try to restructure their debts by filing for protection under the federal bankruptcy laws or negotiating a work-out. If a borrower becomes involved in a bankruptcy proceeding, access to collateral may be limited by bankruptcy and other laws. If a court decides that access to collateral is limited or voidable, the Fund may not recover the full amount of principal and interest that is due.

A borrower must comply with certain restrictive covenants contained in the loan agreement or indenture (in the case of floating rate debt securities). In addition to requiring the scheduled payment of principal and interest, these covenants may include restrictions on the payment of dividends and other distributions to the borrower’s shareholders, provisions requiring compliance with specific financial ratios, and limits on total indebtedness. The agreement may also require the prepayment of the floating rate loans or debt securities from excess cash flow. A breach of a covenant that is not waived by the agent (or lenders directly) is normally an event of default, which provides the agent and lenders the right to call for repayment of the outstanding floating rate loan or debt security.

Purchasers of floating rate loans may receive and/or pay certain fees. These fees are in addition to interest payments and may include commitment fees, facility fees, and prepayment penalty fees. When the Fund buys a floating rate loan, it may receive a facility fee, and when it sells a floating rate loan, it may pay an assignment fee.

It is expected that the majority of floating rate loans and debt securities will have stated maturities of three to ten years. However, because floating rate loans and debt securities are frequently prepaid, it is expected that the average maturity will be three to five years. The degree to which borrowers prepay floating rate loans and debt securities, whether as a contractual requirement or at the borrower’s election, may be affected by general business conditions, the borrower’s financial condition and competitive conditions among lenders. Prepayments cannot be predicted with accuracy. Prepayments may result in the Fund’s investing in floating rate loans and debt securities with lower yields.

Investments in loans, loan participations and assignments present the possibility that the Fund could be held liable as a co-lender under emerging legal theories of lender liability. The Fund anticipates that loans, loan participations and assignments could be sold only to a limited number of institutional investors. If there is no active secondary market for a loan, it may be more difficult to sell the interests in such a loan at a price that is acceptable or to even obtain pricing information. In addition, some loans, loan participations and assignments may not be rated by major rating agencies. Loans held by the Fund might not be considered securities for the purposes of the Securities Act of 1933, as amended (the 1933 Act) or the Securities Exchange Act of 1934, and therefore a risk exists that purchasers, such as the Fund may not be entitled to rely on the anti-fraud provisions of those Acts.

Structured Notes and Indexed Securities. Structured notes and indexed securities may entail a greater degree of market risk than other types of debt securities because the investor bears the risk of the reference instrument. Structured notes or indexed securities also may be more volatile, less liquid, and more difficult to accurately price than less complex securities and instruments or more traditional debt securities. In addition to the credit risk of the structured note or indexed security’s issuer and the normal risks of price changes in response to changes in interest rates, the principal amount of structured notes or indexed securities may decrease as a result of changes in the value of the underlying reference instruments. Further, in the case of certain structured notes or indexed securities in which the interest rate, or exchange rate in the case of currency, is linked to a reference instrument, the rate may be

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increased or decreased or the terms may provide that, under certain circumstances, the principal amount payable on maturity may be reduced to zero resulting in a loss to the Fund.

Other Investments

Other Investment Companies. Unless otherwise indicated in this SAI or the Fund’s prospectus, the Fund may purchase shares of other investment companies. The 1940 Act imposes the following restrictions on investments in other investment companies: (i) a Fund may not purchase more than 3% of the total outstanding voting stock of another investment company; (ii) a Fund may not invest more than 5% of its total assets in securities issued by another investment company; and (iii) a Fund may not invest more than 10% of its total assets in securities issued by other investment companies. The 1940 Act and related rules provide certain exemptions from these restrictions. For example, under certain conditions, a Fund may acquire an unlimited amount of shares of mutual funds that are part of the same group of investment companies as the acquiring fund. In addition, these restrictions do not apply to investments by the Fund in investment companies that are money market funds, including money market funds that have Invesco or an affiliate of Invesco as an investment adviser (the Affiliated Money Market Funds).

When the Fund purchases shares of another investment company, including an Affiliated Money Market Fund, the Fund will indirectly bear its proportionate share of the advisory fees and other operating expenses of such investment company and will be subject to the risks associated with the portfolio investments of the underlying investment company.

Variable or Floating Rate Instruments. The Fund may invest in Municipal Securities which have variable or floating rate instruments.

Variable or floating rate instruments are securities that provide for a periodic adjustment in the interest rate paid on the obligation. The interest rates for securities with variable interest rates are readjusted on set dates (such as the last day of the month or calendar quarter) and the interest rates for securities with floating rates are reset whenever a specified interest rate change occurs. Variable or floating interest rates generally reduce changes in the market price of securities from their original purchase price because, upon readjustment, such rates approximate market rates. Accordingly, as market interest rates decrease or increase, the potential for capital appreciation or depreciation is less for variable or floating rate securities than for fixed rate obligations. Many securities with variable or floating interest rates have a demand feature allowing the Fund to demand payment of principal and accrued interest prior to its maturity. The terms of such demand instruments require payment of principal and accrued interest by the issuer, a guarantor, and/or a liquidity provider. All variable or floating rate instruments will meet the applicable rating standards of the Fund. The Fund’s Adviser, or Sub-Adviser, as applicable, may determine that an unrated floating rate or variable rate demand obligation meets the Fund’s rating standards by reason of being backed by a letter of credit or guarantee issued by a bank that meets those rating standards.

Participation Notes. The Fund may invest in participation notes. Participation notes, also known as participation certificates, are issued by banks or broker-dealers and are designed to replicate the performance of foreign companies or foreign securities markets and can be used by the Fund as an alternative means to access the securities market of a country. Participation notes are generally traded over-the-counter (OTC). The performance results of participation notes will not replicate exactly the performance of the foreign company or foreign securities market that they seek to replicate due to transaction and other expenses. Investments in participation notes involve the same risks associated with a direct investment in the underlying foreign companies or foreign securities market that they seek to replicate. In addition, participation notes are subject to counterparty risk, currency risk and reinvestment risk. Counterparty risk is the risk that the broker-dealer or bank that issues them will not fulfill its contractual obligation to complete the transaction with the Fund. Participation notes constitute general unsecured contractual obligations of the banks or broker-dealers that issue them, and the Fund is relying on the creditworthiness of such banks or broker-dealers and has no rights under a participation note against the issuer of the underlying assets. Additionally, there is a currency risk since the dollar value of the Fund’s foreign investments will be affected by changes in the exchange rates between the dollar and

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(a) the currencies in which the notes are denominated, such euro denominated participation notes, and (b) the currency of the country in which a foreign company sits. Also, there is a reinvestment risk because the amounts from the note may be reinvested in a less valuable investment when the note matures.

Investment Techniques

Forward Commitments, When-Issued and Delayed-Delivery Securities. The Fund may purchase or sell securities on a forward commitment, when-issued or delayed-delivery basis.

Securities sold on a forward commitment, when-issued or delayed-delivery basis involve delivery and payment that take place in the future after the date of the commitment to purchase or sell the securities at a pre-determined price and/or yield. Settlement of such transactions normally occurs a month or more after the purchase or sale commitment is made. Typically, no interest accrues to the purchaser until the security is delivered. Forward commitments also include “To Be Announced” (TBA) synthetic securities, which are contracts for the purchase or sale of mortgage-backed securities to be delivered at a future agreed upon date, whereby the specific mortgage pool numbers or the number of pools that will be delivered to fulfill the trade obligation or terms of the contract are unknown at the time of the trade. The Fund may also enter into buy/sell back transactions (a form of delayed-delivery agreement). In a buy/sell back transaction, the Fund enters a trade to sell securities at one price and simultaneously enters a trade to buy the same securities at another price for settlement at a future date. Although the Fund generally intends to acquire or dispose of securities on a forward commitment, when-issued or delayed-delivery basis, the Fund may sell these securities or its commitment before the settlement date if deemed advisable.

When purchasing a security on a forward commitment, when-issued or delayed-delivery basis, the Fund assumes the rights and risks of ownership of the security, including the risk of price and yield fluctuation, and takes such fluctuations into account when determining its net asset value. Securities purchased on a forward commitment, when-issued or delayed-delivery basis are subject to changes in value based upon the public’s perception of the creditworthiness of the issuer and changes, real or anticipated, in the level of interest rates. Accordingly, securities acquired on such a basis may expose the Fund to risks because they may experience such fluctuations prior to actual delivery. Purchasing securities on a forward commitment, when-issued or delayed-delivery basis may involve the additional risk that the yield available in the market when the delivery takes place actually may be higher than that obtained in the transaction itself.

Many forward commitments, when-issued and delayed-delivery transactions, including TBAs, are also subject to the risk that a counterparty may become bankrupt or otherwise fail to perform its obligations due to financial difficulties, including making payments or fulfilling obligations to the Fund. The Fund may obtain no or only limited recovery in a bankruptcy or other organizational proceedings, and any recovery may be significantly delayed. With respect to forward settling TBA transactions involving U.S. Government agency mortgage-backed securities, the counterparty risk may be mitigated by the recently adopted requirement that counterparties exchange variation margin on a regular basis as the market value of the deliverable security fluctuates.

Investment in these types of securities may increase the possibility that the Fund will incur short-term gains subject to federal taxation or short-term losses if the Fund must engage in portfolio transactions in order to honor its commitment. Until the settlement date, the Fund will segregate liquid assets of a dollar value sufficient at all times to make payment for the forward commitment, when-issued or delayed delivery transactions. Such segregated liquid assets will be marked-to-market daily, and the amount segregated will be increased if necessary to maintain adequate coverage of the delayed-delivery commitments. The delayed delivery securities, which will not begin to accrue interest or dividends until the settlement date, will be recorded as an asset of the Fund and will be subject to the risk of market fluctuation. The purchase price of the delayed delivery securities is a liability of the Fund until settlement. TBA transactions and transactions in other forward-settling mortgage-backed securities are effected pursuant to a collateral agreement with the seller. The Fund provides to the seller collateral consisting of

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cash or liquid securities in an amount as specified by the agreement upon initiation of the transaction. The Fund will make payments throughout the term of the transaction as collateral values fluctuate to maintain full collateralization for the term of the transaction. Collateral will be marked-to-market every business day. If the seller defaults on the transaction or declares bankruptcy or insolvency, the Fund might incur expenses in enforcing its rights, or the Fund might experience delay and costs in recovering collateral or may suffer a loss of principal and interest if the value of the collateral declines. In these situations, the Fund will be subject to greater risk that the value of the collateral will decline before it is recovered or, in some circumstances, the Fund may not be able to recover the collateral, and the Fund will experience a loss.

Short Sales. The Fund may engage in short sales that the Fund owns or has the right to obtain (short sales against the box). The Fund will not sell a security short that it does not own if, as a result of such short sale, the aggregate market value of such securities sold short exceeds 10% of the Fund’s total assets.

A short sale involves the sale of a security which the Fund does not own in the hope of purchasing the same security at a later date at a lower price. To make delivery to the buyer, the Fund must borrow the security from a broker. The Fund normally closes a short sale by purchasing an equivalent number of shares of the borrowed security on the open market and delivering them to the broker. A short sale is typically effected when the Fund’s Adviser believes that the price of a particular security will decline. Open short positions using options, futures, swaps or forward foreign currency contracts are not deemed to constitute selling securities short.

To secure its obligation to deliver the securities sold short to the broker, the Fund will be required to deposit cash or liquid securities with the broker. In addition, the Fund may have to pay a premium to borrow the securities, and while the loan of the security sold short is outstanding, the Fund is required to pay to the broker the amount of any dividends paid on shares sold short. In addition to maintaining collateral with the broker, the Fund will earmark or segregate an amount of cash or liquid securities equal to the difference, if any, between the current market value of the securities sold short and any cash or liquid securities deposited as collateral with the broker-dealer in connection with the short sale. The collateral will be marked to market daily. The amounts deposited with the broker or segregated with the custodian do not have the effect of limiting the amount of money that the Fund may lose on a short sale. Short sale transactions covered in this manner are not considered senior securities and are not subject to the Fund’s fundamental investment limitations on senior securities and borrowings.

Short positions create a risk that the Fund will be required to cover them by buying the security at a time when the security has appreciated in value, thus resulting in a loss to the Fund. A short position in a security poses more risk than holding the same security long. Because a short position loses value as the security’s price increases, the loss on a short sale is theoretically unlimited. The loss on a long position is limited to what the Fund originally paid for the security together with any transaction costs. The Fund may not always be able to borrow a security the Fund seeks to sell short at a particular time or at an acceptable price. It is possible that the market value of the securities the Fund holds in long positions will decline at the same time that the market value of the securities the Fund has sold short increases, thereby increasing the Fund’s potential volatility. Because the Fund may be required to pay dividends, interest, premiums and other expenses in connection with a short sale, any benefit for the Fund resulting from the short sale will be decreased, and the amount of any ultimate gain or loss will be decreased or increased, respectively, by the amount of such expenses.

The Fund may also enter into short sales against the box. Short sales against the box are short sales of securities that the Fund owns or has the right to obtain (equivalent in kind or amount to the securities sold short). If the Fund enters into a short sale against the box, it will be required to set aside securities equivalent in kind and amount to the securities sold short (or securities convertible or exchangeable into such securities) and will be required to hold such securities while the short sale is outstanding. The Fund will incur transaction costs including interest expenses, in connection with opening, maintaining, and closing short sales against the box.

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Short sales against the box result in a “constructive sale” and require the Fund to recognize any taxable gain unless an exception to the constructive sale applies. See “Dividends, Distributions and Tax Matters — Tax Matters — Tax Treatment of Portfolio Transactions — Options, futures, forward contracts, swap agreements and hedging transactions.”

Margin Transactions. The Fund will not purchase any security on margin, except that the Fund may obtain such short-term credits as may be necessary for the clearance of purchases and sales of portfolio securities. The payment by the Fund of initial or variation margin in connection with futures, swaps or related options transactions and the use of a reverse repurchase agreement to finance the purchase of a security will not be considered the purchase of a security on margin.

Interfund Loans. The SEC has issued an exemptive order permitting the Invesco Funds to borrow money from and lend money to each other for temporary or emergency purposes. The Invesco Funds’ interfund lending program is subject to a number of conditions, including the requirements that: (1) an interfund loan generally will occur only if the interest rate on the loan is more favorable to the borrowing fund than the interest rate typically available from a bank for a comparable transaction and the rate is more favorable to the lending fund than the rate available on overnight repurchase transactions; (2) an Invesco Fund may not lend more than 15% of its net assets through the program (measured at the time of the last loan); and (3) an Invesco Fund may not lend more than 5% of its net assets to another Invesco Fund through the program (measured at the time of the loan). The Fund may participate in the program only if and to the extent that such participation is consistent with the Fund’s investment objective and investment policies. Interfund loans have a maximum duration of seven days. Loans may be called with one day’s notice and may be repaid on any day.

Borrowing. The Fund may borrow money to the extent permitted under “Fund Policies”. Such borrowings may be utilized (i) for temporary or emergency purposes; (ii) in anticipation of or in response to adverse market conditions; or, (iii) for cash management purposes. All borrowings are limited to an amount not exceeding 33 1/3% of the Fund’s total assets (including the amount borrowed) less liabilities (other than borrowings). Any borrowings that exceed this amount will be reduced within three business days to the extent necessary to comply with the 33 1/3% limitation even if it is not advantageous to sell securities at that time.

If there are unusually heavy redemptions, the Fund may have to sell a portion of its investment portfolio at a time when it may not be advantageous to do so. Selling Fund securities under these circumstances may result in a lower net asset value per share or decreased dividend income, or both. Invesco and the Sub-Advisers believe that, in the event of abnormally heavy redemption requests, the Fund’s borrowing ability would help to mitigate any such effects and could make the forced sale of their portfolio securities less likely.

The Fund may borrow from a bank, broker-dealer, or an Invesco Fund. Additionally, the Fund is permitted to temporarily carry a negative or overdrawn balance in their account with their custodian bank. To compensate the custodian bank for such overdrafts, the Fund may either (i) leave funds as a compensating balance in their account so the custodian bank can be compensated by earning interest on such funds; or (ii) compensate the custodian bank by paying it an agreed upon rate. The Fund may not purchase additional securities when any borrowings from banks or broker-dealers exceed 5% of the Fund’s total assets or when any borrowings from an Invesco Fund are outstanding.

Lending Portfolio Securities. The Fund may lend its portfolio securities (principally to broker-dealers) to generate additional income. Such loans are callable at any time and are continuously secured by segregated collateral equal to no less than the market value, determined daily, of the loaned securities. Such collateral will be cash, letters of credit, or debt securities issued or guaranteed by the U.S. Government or any of its agencies. The Fund may lend portfolio securities to the extent of one-third of its total assets. The Fund will loan its securities only to parties that Invesco has determined are in good standing and when, in Invesco’s judgment, the income earned would justify the risks.

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The Fund will not have the right to vote securities while they are on loan, but it can call a loan in anticipation of an important vote. The Fund would receive income in lieu of dividends on loaned securities and may, at the same time, generate income on the loan collateral or on the investment of any cash collateral.

If the borrower defaults on its obligation to return the securities loaned because of insolvency or other reasons, the Fund could experience delays and costs in recovering securities loaned or gaining access to the collateral. If the Fund is not able to recover the securities loaned, the Fund may sell the collateral and purchase a replacement security in the market. Lending securities entails a risk of loss to the Fund if and to the extent that the market value of the loaned securities increases and the collateral is not increased accordingly.

Any cash received as collateral for loaned securities will be invested, in accordance with the Fund’s investment guidelines, in short-term money market instruments or Affiliated Money Market Funds. Investing this cash subjects that investment to market appreciation or depreciation. For purposes of determining whether the Fund is complying with its investment policies, strategies and restrictions, the Fund will consider the loaned securities as assets of the Fund, but will not consider any collateral received as the Fund asset. The Fund will bear any loss on the investment of cash collateral.

For a discussion of tax considerations relating to lending portfolio securities, see “Dividends, Distributions and Tax Matters — Tax Matters — Tax Treatment of Portfolio Transactions — Securities lending.”

Repurchase Agreements. The Fund may engage in repurchase agreement transactions. Repurchase agreements are agreements under which the Fund acquires ownership of a security from a broker-dealer or bank that agrees to repurchase the security at a mutually agreed upon time and price (which is higher than the purchase price), thereby determining the yield during the Fund’s holding period. The Fund may enter into a “continuing contract” or “open” repurchase agreement under which the seller is under a continuing obligation to repurchase the underlying securities from the Fund on demand and the effective interest rate is negotiated on a daily basis.

In any repurchase transaction, collateral for a repurchase agreement may include cash items, Government Securities, and investment grade debt obligations. The Fund may engage in repurchase agreements collateralized by securities that are rated below investment grade by the requisite NRSROs or unrated securities of comparable quality, loan participations, and equities. For these types of repurchase agreement transactions, the Fund would look to the counterparty, and not the collateral, for determining diversification under Rule 2a-7. Thus, collateral for a repurchase agreement may include securities that the Fund could not hold directly.

Regardless of the collateral underlying the repurchase agreement, the Fund must determine that the repurchase agreement with the particular counterparty involves minimal credit risk and satisfies the credit quality standards in compliance with Rule 2a-7 under the 1940 Act. Lower quality collateral and collateral with longer maturities may be subject to greater price fluctuations than higher quality collateral and collateral with shorter maturities. If the repurchase agreement counterparty were to default, lower quality collateral may be more difficult to liquidate than higher quality collateral. Repurchase agreements involving collateral other than Government Securities and cash items may be subject to special risks and may not have the benefit of certain protections in the event of counter party’s insolvency.

If the seller of a repurchase agreement fails to repurchase the security in accordance with the terms of the agreement, the Fund might incur expenses in enforcing its rights, and could experience a loss on the sale of the underlying security to the extent that the proceeds of the sale including accrued interest are less than the resale price provided in the agreement, including interest. In addition, although the Bankruptcy Code and other insolvency laws may provide certain protections for some types of repurchase agreements, if the seller of a repurchase agreement should be involved in bankruptcy or insolvency proceedings, the Fund may incur delay and costs in selling the underlying security or may suffer a loss of principal and interest if the value of the underlying security declines.

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The Fund may enter into repurchase agreements that involve securities that would be subject to a court “stay” in the event of the seller’s bankruptcy or insolvency. A “stay” will prevent the Fund from selling the securities it holds under a repurchase agreement until permitted by a court. In these situations the Fund will be subject to greater risk that the value of the securities will decline before they are sold, and that the Fund will experience a loss.

The securities underlying a repurchase agreement will be marked-to-market every business day so that the value of such securities is at least equal to the investment value of the repurchase agreement, including any accrued interest thereon. Custody of the securities will be maintained by the Fund’s custodian or sub-custodian for the duration of the agreement.

The Fund may invest their cash balances in joint accounts with other Invesco Funds for the purpose of investing in repurchase agreements with maturities not to exceed 60 days, and in certain other money market instruments with remaining maturities not to exceed 90 days. Repurchase agreements may be considered loans by the Fund under the 1940 Act.

Restricted and Illiquid Securities. The Fund may invest up to 5% of its net assets in securities that are illiquid.

Illiquid securities are securities that cannot be disposed of within seven days in the normal course of business at approximately the price at which they are valued. Illiquid securities may include a wide variety of investments, such as: (1) repurchase agreements maturing in more than seven days (unless the agreements have demand/redemption features); (2) OTC options contracts and certain other derivatives (including certain swap agreements); (3) fixed time deposits that are not subject to prepayment or that provide for withdrawal penalties upon prepayment (other than overnight deposits); (4) loan interests and other direct debt instruments; (5) municipal lease obligations; (6) commercial paper issued pursuant to Section 4(2) of the 1933 Act and (7) securities that are unregistered, that can be sold to qualified institutional buyers in accordance with Rule 144A under the 1933 Act, or that are exempt from registration under the 1933 Act or otherwise restricted under the federal securities laws.

Limitations on the resale of restricted securities may have an adverse effect on their marketability, which may prevent the Fund from disposing of them promptly at reasonable prices. The Fund may have to bear the expense of registering such securities for resale, and the risk of substantial delays in effecting such registrations. The Fund’s difficulty valuing and selling illiquid securities may result in a loss or be costly to the Fund.

If a substantial market develops for a restricted security or other illiquid investment held by the Fund, it may be treated as a liquid security, in accordance with procedures and guidelines approved by the Board. While Invesco monitors the liquidity of restricted securities on a daily basis, the Board oversees and retains ultimate responsibility for Invesco’s liquidity determinations. Invesco considers various factors when determining whether a security is liquid, including the frequency of trades, availability of quotations and number of dealers or qualified institutional buyers in the market.

Rule 144A Securities . Rule 144A securities are securities which, while privately placed, are eligible for purchase and resale pursuant to Rule 144A under the 1933 Act. This Rule permits certain qualified institutional buyers, such as the Fund, to trade in privately placed securities even though such securities are not registered under the 1933 Act. Invesco and/or Sub-Advisers, under the supervision of the Board, will consider whether securities purchased under Rule 144A are illiquid and thus subject to the Fund’s restriction on investment in illiquid securities. Determination of whether a Rule 144A security is liquid or not is a question of fact. In making this determination Invesco and/or Sub-Advisers will consider the trading markets for the specific security taking into account the unregistered nature of a Rule 144A security. In addition, Invesco and/or Sub-Advisers could consider the (i) frequency of trades and quotes; (ii) number of dealers and potential purchasers; (iii) dealer undertakings to make a market; and (iv) nature of the security and of market place trades (for example, the time needed to dispose of the security, the method of soliciting offers and the mechanics of transfer). Invesco and/or Sub-Advisers will also monitor

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the liquidity of Rule 144A securities and, if as a result of changed conditions, Invesco and/or Sub-Advisers determines that a Rule 144A security is no longer liquid, Invesco and/or Sub-Advisers will review the Fund’s holdings of illiquid securities to determine what, if any, action is required to assure that the Fund complies with its restriction on investment in illiquid securities. Investing in Rule 144A securities could increase the amount of the Fund’s investments in illiquid securities if qualified institutional buyers are unwilling to purchase such securities.

Reverse Repurchase Agreements. The Fund may engage in reverse repurchase agreements.

Reverse repurchase agreements are agreements that involve the sale of securities held by the Fund to financial institutions such as banks and broker-dealers, with an agreement that the Fund will repurchase the securities at an agreed upon price and date. During the reverse repurchase agreement period, the Fund continues to receive interest and principal payments on the securities sold. The Fund may employ reverse repurchase agreements (i) for temporary emergency purposes, such as to meet unanticipated net redemptions so as to avoid liquidating other portfolio securities during unfavorable market conditions; (ii) to cover short-term cash requirements resulting from the timing of trade settlements; or (iii) to take advantage of market situations where the interest income to be earned from the investment of the proceeds of the transaction is greater than the interest expense of the transaction.

Reverse repurchase agreements are a form of leverage and involve the risk that the market value of securities to be purchased by the Fund may decline below the price at which the Fund is obligated to repurchase the securities, or that the other party may default on its obligation, so that the Fund is delayed or prevented from completing the transaction. Leverage may make the Fund’s returns more volatile and increase the risk of loss. At the time the Fund enters into a reverse repurchase agreement, it will segregate, and maintain, liquid assets having a dollar value equal to the repurchase price, if specified, or the value of the proceeds received on any sale subject to repurchase plus accrued interest. This practice of segregating assets is referred to as “cover”. The liquidity of the Fund and its ability to meet redemption requests may be impaired to the extent that a substantial portion of the Fund’s otherwise liquid assets are used as a cover or pledged to the counterparty as collateral. In the event the buyer of securities under a reverse repurchase agreement files for bankruptcy or becomes insolvent, the Fund’s use of the proceeds from the sale of the securities may be restricted pending a determination by the other party, or its trustee or receiver, whether to enforce the Fund’s obligation to repurchase the securities. Reverse repurchase agreements may be considered borrowings by the Fund for purposes of the 1940 Act and, therefore, may be included in the Fund’s calculations of its limitation on borrowing. See the section entitled “Borrowing” above.

Sale of Money Market Securities. The Fund does not seek profits through short-term trading and will generally hold portfolio securities to maturity. However, the Adviser and/or Sub-Adviser may seek to enhance the yield of the Fund by taking advantage of yield disparities that occur in the money markets. For example, market conditions frequently result in similar securities trading at different prices. Also, there frequently are differences in yields between various types of money market securities. The Adviser and/or Sub-Adviser may dispose of any portfolio security prior to its maturity if such disposition and reinvestment of proceeds are expected to enhance yield consistent with the Adviser’s and/or Sub-Adviser’s judgment as to desirable portfolio maturity structure. The Adviser and/or Sub-Adviser may also dispose of any portfolio security prior to maturity to meet redemption requests, and as a result of a revised credit evaluation of the issuer or other circumstances or considerations. This procedure may increase or decrease the Fund’s yield depending upon the Adviser’s and/or Sub-Adviser’s ability to correctly time and execute such transactions. The Fund’s policy of investing in securities with maturities of 397 days or less will result in high portfolio turnover. Since brokerage commissions are not normally paid on investments of the type made by the Fund, the high turnover should not adversely affect the Fund’s net income.

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Commodity Exchange Act (CEA) Regulation and Exclusions:

With respect to the Fund, Invesco has claimed an exclusion from the definition of “commodity pool operator” (CPO) under the CEA and the rules of the Commodity Futures Trading Commission (CFTC) and, therefore, is not subject to CFTC registration or regulation as a CPO. In addition, Invesco is relying upon a related exclusion from the definition of “commodity trading advisor” (CTA) under the CEA and the rules of the CFTC with respect to the Fund.

The terms of the CPO exclusion requires the Fund, among other things, to adhere to certain limits on their investments in “commodity interests.” Commodity interests include commodity futures, commodity options and swaps, which in turn include non-deliverable forwards, as further described below. Because Invesco and the Fund intends to comply with the terms of the CPO exclusion, the Fund may, in the future, need to adjust their investment strategies, consistent with their investment objectives, to limit their investments in these types of instruments. The Fund is not intended as vehicles for trading in the commodity futures, commodity options or swaps markets. The CFTC has neither reviewed nor approved Invesco’s reliance on these exclusions, or the Fund, its investment strategies or this SAI.

Generally, the exclusion from CPO regulation on which Invesco relies requires the Fund to meet one of the following tests for their commodity interest positions, other than positions entered into for bona fide hedging purposes (as defined in the rules of the CFTC): either (1) the aggregate initial margin and premiums required to establish the Fund’s positions in commodity interests may not exceed 5% of the liquidation value of the Fund’s portfolio (after taking into account unrealized profits and unrealized losses on any such positions); or (2) the aggregate net notional value of the Fund’s commodity interest positions, determined at the time the most recent such position was established, may not exceed 100% of the liquidation value of the Fund’s portfolio (after taking into account unrealized profits and unrealized losses on any such positions). In addition to meeting one of these trading limitations, the Fund may not market itself as a commodity pool or otherwise as a vehicle for trading in the commodity futures, commodity options or swaps markets. If, in the future, the Fund can no longer satisfy these requirements, Invesco would withdraw its notice claiming an exclusion from the definition of a CPO, and Invesco would be subject to registration and regulation as a CPO with respect to the Fund, in accordance with the CFTC rules that allow for substituted compliance with CFTC disclosure and shareholder reporting requirements based on Invesco’s compliance with comparable SEC requirements. However, as a result of CFTC regulation with respect to the Fund, the Fund may incur additional compliance and other expenses.

Receipt of Issuer’s Nonpublic Information

The Adviser or Sub-Advisers (through their portfolio managers, analysts, or other representatives) may receive material nonpublic information about an issuer that may restrict the ability of the Adviser or Sub-Advisers to cause the Fund to buy or sell securities of the issuer on behalf of the Fund for substantial periods of time. This may impact the Fund’s ability to realize profit or avoid loss with respect to the issuer and may adversely affect the Fund’s flexibility with respect to buying or selling securities, potentially impacting Fund performance. For example, activist investors of certain issuers in which the Adviser or Sub-Advisers hold large positions may contact representatives of the Adviser or Sub-Advisers and may disclose material nonpublic information in such communication. The Adviser or Sub-Advisers would be restricted from trading on the basis of such material nonpublic information, limiting their flexibility in managing the Fund and possibly impacting Fund performance.

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Cybersecurity Risk

The Fund, like all companies, may be susceptible to operational and information security risks. Cybersecurity failures or breaches of the Fund or its service providers or the issuers of securities in which the Fund invests, have the ability to cause disruptions and impact business operations, potentially resulting in financial losses, the inability of Fund shareholders to transact business, violations of applicable privacy and other laws, regulatory fines, penalties, reputational damage, reimbursement or other compensation costs, and/or additional compliance costs. The Fund and its shareholders could be negatively impacted as a result.

Fund Policies

Fundamental Restrictions. Except as otherwise noted below, the Fund is subject to the following investment restrictions, which may be changed only by a vote of the Fund’s outstanding shares. Fundamental restrictions may be changed only by a vote of the lesser of (i) 67% or more of the Fund’s shares present at a meeting if the holders of more than 50% of the outstanding shares are present in person or represented by proxy, or (ii) more than 50% of the Fund’s outstanding shares. Any investment restriction that involves a maximum or minimum percentage of securities or assets (other than with respect to borrowing) shall not be considered to be violated unless an excess over or a deficiency under the percentage occurs immediately after, and is caused by, an acquisition or disposition of securities or utilization of assets by the Fund.

(1) The Fund is a “diversified company” as defined in the 1940 Act. The Fund will not purchase the securities of any issuer if, as a result, the Fund would fail to be a diversified company within the meaning of the 1940 Act, and the rules and regulations promulgated thereunder, as such statute, rules and regulations are amended from time to time or are interpreted from time to time by the SEC staff (collectively, the 1940 Act Laws and Interpretations) or except to the extent that the Fund may be permitted to do so by exemptive order or similar relief (collectively, with the 1940 Act Laws and Interpretations, the 1940 Act Laws, Interpretations and Exemptions). In complying with this restriction, however, the Fund may purchase securities of other investment companies to the extent permitted by the 1940 Act Laws, Interpretations and Exemptions.

(2) The Fund may not borrow money or issue senior securities, except as permitted by the 1940 Act Laws, Interpretations and Exemptions.

(3) The Fund may not underwrite the securities of other issuers. This restriction does not prevent the Fund from engaging in transactions involving the acquisition, disposition or resale of its portfolio securities, regardless of whether the Fund may be considered to be an underwriter under the 1933 Act.

(4) The Fund will not make investments that will result in the concentration (as that term may be defined or interpreted by the 1940 Act Laws, Interpretations and Exemptions) of its investments in the securities of issuers primarily engaged in the same industry. This restriction does not limit the Fund’s investments in (i) obligations issued or guaranteed by the U.S. Government, its agencies or instrumentalities, or (ii) tax-exempt obligations issued by governments or political subdivisions of governments, or (iii) bank instruments. In complying with this restriction, the Fund will not consider a bank-issued guaranty or financial guaranty insurance as a separate security.

(5) The Fund may not purchase real estate or sell real estate unless acquired as a result of ownership of securities or other instruments. This restriction does not prevent the Fund from investing in issuers that invest, deal, or otherwise engage in transactions in real estate or interests therein, or investing in securities that are secured by real estate or interests therein.

(6) The Fund may not purchase physical commodities or sell physical commodities unless acquired as a result of ownership of securities or other instruments. This restriction does not prevent the

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Fund from engaging in transactions involving futures contracts and options thereon or investing in securities that are secured by physical commodities.

(7) The Fund may not make personal loans or loans of its assets to persons who control or are under common control with the Fund, except to the extent permitted by 1940 Act Laws, Interpretations and Exemptions. This restriction does not prevent the Fund from, among other things, purchasing debt obligations, entering into repurchase agreements, loaning its assets to broker-dealers or institutional investors, or investing in loans, including assignments and participation interests.

(8) The Fund may, notwithstanding any other fundamental investment policy or limitation, invest all of its assets in the securities of a single open-end management investment company with substantially the same fundamental investment objectives, policies and restrictions as the Fund.

(9) Under normal circumstances, the Fund will invest at least 80% of the value of its assets (as that term may be defined or interpreted by the 1940 Act Laws, Interpretations and Exemptions) in investments the income from which is exempt from federal income tax under regular tax rules.

The investment restrictions set forth above provide the Fund with the ability to operate under new interpretations of the 1940 Act or pursuant to exemptive relief from the SEC without receiving prior shareholder approval of the change. Even though the Fund has this flexibility, the Board has adopted non-fundamental restrictions for the Fund relating to certain of these restrictions which Invesco and, when applicable, the Sub-Advisers must follow in managing the Fund. Any changes to these non-fundamental restrictions, which are set forth below, require the approval of the Board.

Non-Fundamental Restrictions. Non-fundamental restrictions may be changed for the Fund without shareholder approval. The non-fundamental investment restrictions listed below apply to the Fund unless otherwise indicated.

(1) In complying with the fundamental restriction regarding issuer diversification, the Fund will not, with respect to 100% of its total assets, purchase the securities of any issuer (other than securities issued or guaranteed by the U.S. Government or any of its agencies or instrumentalities and securities issued by other investment companies), if, as a result, (i) more than 5% of the Fund’s total assets would be invested in the securities of that issuer, except as permitted by Rule 2a-7 under the 1940 Act, or (ii) the Fund would hold more than 10% of the outstanding voting securities of that issuer. The Fund may purchase securities of other investment companies as permitted by the 1940 Act Laws, Interpretations and Exemptions.

In complying with the fundamental restriction regarding issuer diversification, since the Fund invests in municipal securities, it will regard each state (including the District of Columbia and Puerto Rico), territory and possession of the United States, each political subdivision, agency, instrumentality and authority thereof, and each multi-state agency of which a state is a member as a separate “issuer.” When the assets and revenues of an agency, authority, instrumentality or other political subdivision are separate from the government creating the subdivision and the security is backed only by assets and revenues of the subdivision, such subdivision would be deemed to be the sole issuer. Similarly, in the case of an Industrial Development Bond or Private Activity Bond, if that bond is backed only by the assets and revenues of the non-governmental user, then that non-governmental user would be deemed to be the sole issuer. However, if the creating government or another entity guarantees a security, then to the extent that the value of all securities issued or guaranteed by that government or entity and owned by the Fund exceeds 10% of the Fund’s total assets, the guarantee would be considered a separate security and would be treated as issued by that government or entity. Securities issued or guaranteed by a bank or subject to financial guaranty insurance are not subject to the limitations set forth in the preceding sentence.

(2) In complying with the fundamental restriction regarding industry concentration, the Fund may invest up to 25% of its total assets in the securities of issuers whose principal business activities are in the same industry.

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(3) Notwithstanding the fundamental restriction with regard to engaging in transactions involving futures contracts and options thereon or investing in securities that are secured by physical commodities, the Fund currently may not invest in any security (including futures contracts or options thereon) that is secured by physical commodities.

The Fund does not consider currencies or other financial commodities or contracts and financial instruments to be physical commodities (which include, for example, oil, precious metals and grains). Accordingly, the Fund will interpret the fundamental restriction and the related non-fundamental restriction to permit the Fund, subject to the Fund’s investment objectives and general investment policies (as stated in the Fund’s prospectus and herein), to invest directly in foreign currencies and other financial commodities and to purchase, sell or enter into commodity futures contracts and options thereon, forward foreign currency contracts, foreign currency options, currency-, commodity- and financial instrument-related swap agreements, hybrid instruments, interest rate or securities-related or foreign currency-related hedging instruments or other currency-, commodity- or financial instrument-related derivatives, subject to compliance with any applicable provisions of the federal securities or commodities laws. The Fund will interpret its fundamental restriction regarding the purchase and sale of physical commodities and their related non-fundamental restriction to permit the Fund to invest in ETF’s registered investment companies and other pooled investment vehicles that invest in physical and/or financial commodities, subject to the limits described in the Fund’s prospectus and herein.

(4) Notwithstanding the fundamental restriction with regard to making loans, the Fund may lend up to 33 1/3% of its total assets and may lend money to an Invesco Fund, on such terms and conditions as the SEC may require in an exemptive order.

(5) Notwithstanding the fundamental restriction with regard to investing all assets in an open-end fund, the Fund may not invest all of its assets in the securities of a single open-end management investment company with the same fundamental investment objectives, policies and restrictions as the Fund.

(6) The Fund may not acquire any securities of registered open-end investment companies or registered unit investment trusts in reliance on Sections 12(d)(1)(F) or 12(d)(1)(G) of the 1940 Act.

Policies and Procedures for Disclosure of Fund Holdings

The Board has adopted policies and procedures with respect to the disclosure of the Fund’s portfolio holdings (the Holdings Disclosure Policy). Invesco and the Board may amend the Holdings Disclosure Policy at any time without prior notice. Details of the Holdings Disclosure Policy and a description of the basis on which employees of Invesco and its affiliates may release information about portfolio securities in certain contexts are provided below.

Public release of portfolio holdings. The Fund makes available to beneficial owners of Fund shares and prospective investors information regarding or derived from the Fund’s portfolio holdings. The Fund discloses the following portfolio holdings information on www.invesco.com/us .

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The Fund will file monthly with the Securities and Exchange Commission portfolio holdings and other information about the Fund and its portfolio as of the last business day of the preceding month or any subsequent calendar day of such month within five business days of the end of each month.

These holdings are listed along with the percentage of the Fund’s net assets they represent. Generally, employees of Invesco and its affiliates may not disclose such portfolio holdings until one day after they have been posted on www.invesco.com/us . You may also obtain the publicly available portfolio holdings information described above by contacting us at 1-800-959-4246.

Selective disclosure of portfolio holdings pursuant to non-disclosure agreement. Employees of Invesco and its affiliates may disclose non-public full portfolio holdings on a selective basis only if Invesco’s U.S. Executive Management Committee (EMC) approves the parties to whom disclosure of non-public full portfolio holdings will be made. The EMC must determine that the proposed selective disclosure will be made for legitimate business purposes of the Fund and is in the best interest of the Fund’s shareholders. In making such determination, the EMC will address any perceived conflicts of interest between shareholders of the Fund and Invesco or its affiliates as part of granting its approval.

The Board exercises continuing oversight of the disclosure of Fund portfolio holdings by (1) overseeing the implementation and enforcement of the Holdings Disclosure Policy and the Invesco Funds Code of Ethics by the Chief Compliance Officer (or his designee) of Invesco and the Invesco Funds and (2) considering reports and recommendations by the Chief Compliance Officer concerning any material compliance matters (as defined in Rule 38a-1 under the 1940 Act and Rule 206(4)-7 under the Investment Advisers Act of 1940, as amended) that may arise in connection with the Holdings Disclosure Policy. Pursuant to the Holdings Disclosure Policy, the Board reviews the types of situations in which Invesco provides selective disclosure and approves situations involving perceived conflicts of interest between shareholders of the Fund and Invesco or its affiliates brought to the Board’s attention by Invesco.

Invesco discloses non-public full portfolio holdings information to the following persons in connection with the day-to-day operations and management of the funds advised by Invesco (the Invesco Funds):