AIM COUNSELOR SERIES TRUST

(INVESCO COUNSELOR SERIES TRUST)

(Exact Name of Registrant as Specified in Charter)

11 Greenway Plaza, Suite 2500, Houston, TX 77046
(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: (713) 626-1919

John M. Zerr, Esquire
11 Greenway Plaza, Suite 2500
Houston, TX 77046
(Name and Address of Agent for Service) Copies to:

Elisa Mitchell, Esquire		E. Carolan Berkley, Esquire
Invesco Advisers, Inc.		Stradley Ronon Stevens & Young, LLP
11 Greenway Plaza, Suite 2500		2600 One Commerce Square
Houston, TX 77046		Philadelphia, PA 19103-7599

Approximate Date of Proposed Public Offering: As soon as practicable after this post-effective amendment becomes effective.

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

o		immediately upon filing pursuant to paragraph (b)
þ		on December 16, 2011, pursuant to paragraph (b)
o		60 days after filing pursuant to paragraph (a)(1)
o		on (date), pursuant to paragraph (a)(1)
o		75 days after filing pursuant to paragraph (a)(2)
o		on (date), pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

o this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

 

 

 

 

 

Invesco Core Plus Bond Fund’s investment objective is total return, comprised of current income and capital appreciation.

 

 

As with all other mutual fund securities, the Securities and Exchange Commission (SEC) has not approved or disapproved these securities or determined whether the information in this prospectus is adequate or accurate. Anyone who tells you otherwise is committing a crime.

 

An investment in the Fund:

n   is not FDIC insured;

n   may lose value; and

n   is not guaranteed by a bank.

 

 

 

        Invesco Core Plus Bond Fund

 

 

for a fixed interest rate payment based on a specified principal or notional amount.

 

The Fund may invest in interest rate futures to gain or reduce its exposure to interest rates. An interest rate futures contract is an exchange-traded contact in which the specified underlying security is either an interest-bearing fixed income security or an inter-bank deposit. Interest rate futures are based off an underlying security which is a debt obligation and moves in value as interest rates change.

 

The Fund may utilize forward currency contracts to mitigate the risk of foreign currency exposure. A forward currency contract is an agreement between parties to exchange a specified amount of currency at a specified future time at a specified rate. Forward currency contracts are used to protect against uncertainty in the level of future currency exchange rates or to gain or modify exposure to a particular currency. The Fund may use these contracts to hedge against adverse movements in the foreign currencies in which portfolio securities are denominated. These strategies are implemented within the risk profile of the guidelines set forth in the prospectus.

 

The Fund engages in dollar roll transactions to enhance the Fund’s return on cash.

 

The Fund will attempt to maintain (i) a dollar-weighted average portfolio maturity of between three and ten years, and (ii) a duration (the Fund’s price sensitivity to changes in interest rates) of within +/- one year of the benchmark index.

 

The Fund may invest up to 30% of its total assets in foreign debt securities and up to 20% of its total assets in high yield debt securities (junk bonds). In regard to foreign debt security holdings, up to 30% of the Fund’s total assets may be in developing markets debt securities and up to 20% of the Fund’s total assets may be denominated in currencies other than the U.S. dollar.

 

The Fund utilizes active duration and yield curve positioning for risk management and for generating alpha (specific factors affecting the return on investments in excess of the benchmark) versus its benchmark. Duration is a measure of volatility expressed in years and represents the anticipated percent change in a bond’s price at a single point in time for a 1% change in yield. As duration increases, volatility increases as applicable interest rates change.

 

In attempting to meet its investment objective, the Fund engages in active and frequent trading of portfolio securities.

 

The portfolio managers utilize an appropriate benchmark index in structuring the portfolio. The portfolio managers then decide on risk factors to use in managing the Fund relative to that benchmark. In doing so, the portfolio managers consider recommendations from a team of specialists in positioning the Fund to generate alpha. The portfolio managers generally rely upon a different team of specialists for trade execution and for assistance in determining the most efficient way (in terms of cost-efficiency and selection) to implement those recommendations. Although a variety of specialists provide input in the management of the Fund, the portfolio managers retain responsibility for ensuring the Fund is positioned appropriately in terms of risk exposures and position sizes. The portfolio managers rely on the specialists for adjusting the Fund’s risk exposures and security selection. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (e.g., duration, yield, curve positioning, sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund.

 

Principal Risks of Investing in the Fund

As with any mutual fund investment, loss of money is a risk of investing. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation (FDIC) or any other governmental agency. The risks associated with an investment in the Fund can increase during times of significant market volatility. The principal risks of investing in the Fund are:

 

Active Trading Risk . The Fund engages in frequent trading of portfolio securities. Active trading results in added expenses and may result in a lower return and increased tax liability.

 

Counterparty Risk . Individually negotiated or over-the-counter derivatives are also subject to counterparty risk, which is the risk that the other party to the contract (such as a futures contract or swap agreement) will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.

 

Credit Risk . The issuer of instruments in which the Fund invests may be unable to meet interest and/or principal payments, thereby causing its instruments to decrease in value and lowering the issuer’s credit rating.

 

Currency/Exchange Rate Risk . The dollar value of the Fund’s foreign investments will be affected by changes in the exchange rates between the dollar and the currencies in which those investments are traded.

 

Derivatives Risk . Derivatives may be more difficult to purchase, sell or value than other investments and may be subject to market, interest rate, credit, leverage, counterparty and management risks. A fund investing in a derivative could lose more than the cash amount invested or incur higher taxes. Over-the-counter derivatives are also subject to counterparty risk, which is the risk that the other party to the contract will not fulfill its contractual obligation to complete the transaction with the Fund.

 

Developing Markets Securities Risk . Securities issued by foreign companies and governments located in developing countries may be affected more negatively by inflation, devaluation of their currencies, higher transaction costs, delays in settlement, adverse political developments, the introduction of capital controls, withholding taxes, nationalization of private assets, expropriation, social unrest, war or lack of timely information than those in developed countries.

 

Dollar Roll Transactions Risk . Dollar roll transactions involve the risk that the market value and yield of the securities retained by the Fund may decline below the price of the mortgage-related securities sold by the Fund that it is obligated to repurchase.

 

Forward Foreign Currency Exchange Contracts . The use of forward contracts involves the risk of mismatching the Fund’s objectives under a forward contract with the value of securities denominated in a particular currency. Furthermore, such transactions reduce or preclude the opportunity for gain if the value of the currency should move in the direction opposite to the position taken. There is an additional risk to the effect that currency contracts create exposure to currencies in which the Fund’s securities are not denominated. Unanticipated changes in currency prices may result in poorer overall performance for the Fund than if it had not entered into such contracts.

 

Foreign Securities Risk . The Fund’s foreign investments may be affected by changes in a foreign country’s exchange rates; political and social instability; changes in economic or taxation policies; difficulties when enforcing obligations; decreased liquidity; and increased volatility. Foreign companies may be subject to less regulation resulting in less publicly available information about the companies.

 

Futures Risk . A decision as to whether, when and how to use futures involves the exercise of skill and judgment and even a well-conceived futures transaction may be unsuccessful because of market behavior or unexpected events.

 

High Yield Bond (Junk Bond) Risk . Junk bonds involve a greater risk of default or price changes due to changes in the credit quality of the issuer. The values of junk bonds fluctuate more than those of high-quality bonds in response to company, political, regulatory or economic developments. Values of junk bonds can decline significantly over short periods of time.

 

Interest Rate Risk . Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics, including duration.

 

2        Invesco Core Plus Bond Fund

 

Leverage Risk . Leverage exists when the Fund purchases or sells an instrument or enters into a transaction without investing cash in an amount equal to the full economic exposure of the instrument or transaction and the Fund could lose more than it invested. Leverage created from borrowing or certain types of transactions or instruments, including derivatives, may impair the Fund’s liquidity, cause it to liquidate positions at an unfavorable time, increase volatility or otherwise not achieve its intended objective.

 

Liquidity Risk . The Fund may hold illiquid securities that it may be unable to sell at the preferred time or price and could lose its entire investment in such securities.

 

Management Risk . The investment techniques and risk analysis used by the Fund’s portfolio managers may not produce the desired results.

 

Market Risk . The prices of and the income generated by the Fund’s securities may decline in response to, among other things, investor sentiment; general economic and market conditions; regional or global instability; and currency and interest rate fluctuations.

 

Mortgage- and Asset-Backed Securities Risk . The Fund may invest in mortgage- and asset-backed securities that are subject to prepayment or call risk, which is the risk that the borrower’s payments may be received earlier or later than expected due to changes in prepayment rates on underlying loans. Faster prepayments often happen when interest rates are falling. As a result, the Fund may reinvest these early payments at lower interest rates, thereby reducing the Fund’s income. Conversely, when interest rates rise, prepayments may happen more slowly, causing the security to lengthen in duration. Longer duration securities tend to be more volatile. Securities may be prepaid at a price less than the original purchase value. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of mortgage-backed securities and could result in losses to the Fund. The risk of such defaults is generally higher in the case of mortgage pools that include subprime mortgages. Subprime mortgages refer to loans made to borrowers with weakened credit histories or with lower capacity to make timely payments on their mortgages.

 

Non-Diversification Risk . The Fund is non-diversified and can invest a greater portion of its assets in a single issuer. A change in the value of the issuer could affect the value of the Fund more than if it was a diversified fund.

 

Reinvestment Risk . Reinvestment risk is the risk that a bond’s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond.

 

Swaps Risk . Swaps are subject to credit risk and counterparty risk.

 

U.S. Government Obligations Risk . The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund’s ability to recover should they default.

 

 

 

Tax Information

The Fund’s distributions generally are taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account.

 

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and the Fund’s distributor or its related companies may pay the intermediary for the sale of Fund shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson or financial adviser to recommend the Fund over another investment. Ask your salesperson or financial adviser or visit your financial intermediary’s Web site for more information.

 

Investment Objective(s), Strategies, Risks and Portfolio Holdings

 

proprietary communication technology. Decisions to purchase or sell securities are determined by the relative value considerations of the investment professionals that factor in economic and credit-related fundamentals, market supply and demand, market dislocations and situation-specific opportunities. The purchase or sale of securities may be related to a decision to alter the Fund’s macro risk exposure (such as, duration, yield curve positioning and sector exposure), a need to limit or reduce the Fund’s exposure to a particular security or issuer, degradation of an issuer’s credit quality, or general liquidity needs of the Fund.

 

The Fund may, from time to time, take temporary defensive positions in cash and other securities that are less risky and inconsistent with the Fund’s principal investment strategies in anticipation of, or in response to, adverse market, economic, political or other conditions. As a result, the Fund may not achieve its investment objective.

 

The Fund’s investments in the types of securities described in this prospectus vary from time to time, and, at any time, the Fund may not be invested in all of the types of securities described in this prospectus. Any percentage limitations with respect to assets of the Fund are applied at the time of purchase.

 

Risks

The principal risks of investing in the Fund are:

 

Active Trading Risk . Frequent trading of portfolio securities results in increased costs and may lower the Fund’s actual return. Frequent trading also may increase short term gains and losses, which may affect the Fund’s tax liability.

 

Counterparty Risk . Individually negotiated or over-the-counter derivatives are also subject to counterparty risk, which is the risk that the other party to the contract (such as a futures contract or swap agreement) will not fulfill its contractual obligations, which may cause losses or additional costs to the Fund.

 

Credit Risk . The issuers of instruments in which the Fund invests may be unable to meet interest and/or principal payments. This risk is increased to the extent the Fund invests in junk bonds. An issuer’s securities may decrease in value if its financial strength weakens, which may reduce its credit rating and possibly its ability to meet its contractual obligations.

 

Currency/Exchange Rate Risk . The dollar value of the Fund’s foreign investments will be affected by changes in the exchange rates between the dollar and the currencies in which those investments are traded. The Fund may buy or sell currencies other than the U.S. dollar in order to capitalize on anticipated changes in exchange rates. There is no guarantee that these investments will be successful.

 

Derivatives Risk . The use of derivatives involves risks similar to, as well as risks different from, and possibly greater than, the risks associated with investing directly in securities or other more traditional instruments. Risks to which derivatives may be subject include market, interest rate, credit, leverage and management risks. They may also be more difficult to purchase, sell or value than other investments. When used for hedging or reducing exposure, the derivative may not correlate perfectly with the underlying asset, reference rate or index. A fund investing in a derivative could lose more than the cash amount invested. Over-the-counter derivatives are also subject to counterparty risk, which is the risk that the other party to the contract will not fulfill its contractual obligation to complete the transaction with the Fund. In addition, the use of certain derivatives may cause the Fund to realize higher amounts of income or short-term capital gains (generally taxed at ordinary income tax rates).

 

Developing Markets Securities Risk . The prices of securities issued by foreign companies and governments located in developing countries may be impacted by certain factors more than those in countries with mature economies. For example, developing countries may experience higher rates of inflation or sharply devalue their currencies against the U.S. dollar, thereby causing the value of investments issued by the government or companies located in those countries to decline. Governments in developing markets may be relatively less stable. The introduction of capital controls, withholding taxes, nationalization of private assets, expropriation, social unrest, or war may result in adverse volatility in the prices of securities or currencies. Other factors may include additional transaction costs, delays in settlement procedures, and lack of timely information.

 

Dollar Roll Transactions Risk . Dollar roll transactions involve the risk that the market value and yield of the securities retained by the Fund may decline below the price of the mortgage-related securities sold by the Fund that it is obligated to repurchase. Also, in the event the buyer of mortgage-related securities files for bankruptcy or becomes insolvent, the Fund’s use of the proceeds from the sale may be restricted pending a decision whether the Fund is obligated to repurchase mortgage-related securities.

 

Forward Foreign Currency Exchange Contracts . The use of forward contracts involves the risk of mismatching the Fund’s objectives under a forward contract with the value of securities denominated in a particular currency. Furthermore, such transactions reduce or preclude the opportunity for gain if the value of the currency should move in the direction opposite to the position taken. There is an additional risk to the effect that currency contracts create exposure to currencies in which the Fund’s securities are not denominated. Unanticipated changes in currency prices may result in poorer overall performance for the Fund than if it had not entered into such contracts.

 

Foreign Securities Risk . The dollar value of the Fund’s foreign investments may be affected by changes in the exchange rates between the dollar and the currencies in which those investments are traded. The value of the Fund’s foreign investments may be adversely affected by political and social instability in their home countries, by changes in economic or taxation policies in those countries, or by the difficulty in enforcing obligations in those countries. Foreign companies generally may be subject to less stringent regulations than U.S. companies, including financial reporting requirements and auditing and accounting controls. As a result, there generally is less publicly available information about foreign companies than about U.S. companies. Trading in many foreign securities may be less liquid and more volatile than U.S. securities due to the size of the market or other factors.

 

Futures Risk . A decision as to whether, when and how to use futures involves the exercise of skill and judgment and even a well-conceived futures transaction may be unsuccessful because of market behavior or unexpected events. In addition to the derivatives risks discussed above, the prices of futures can be highly volatile, using futures can lower total return, and the potential loss from futures can exceed the Fund’s initial investment in such contracts.

 

High Yield Bond (Junk Bond) Risk . Compared to higher quality debt securities, junk bonds involve a greater risk of default or price changes due to changes in the credit quality of the issuer because they are generally unsecured and may be subordinated to other creditors’ claims. The values of junk bonds often fluctuate more in response to company, political, regulatory or economic developments than higher quality bonds. Their values can decline significantly over short periods of time or during periods of economic difficulty when the bonds could be difficult to value or sell at a fair price. Credit ratings on junk bonds do not necessarily reflect their actual market value.

 

Interest Rate Risk . Interest rate risk refers to the risk that bond prices generally fall as interest rates rise; conversely, bond prices generally rise as interest rates fall. Specific bonds differ in their sensitivity to changes in interest rates depending on their individual characteristics. One measure of this sensitivity is called duration. The longer the duration of a particular bond, the greater its price sensitivity is to interest rates. Similarly, a longer duration portfolio of securities has greater price sensitivity. Falling interest rates may also prompt some issuers to refinance existing debt, which could affect the Fund’s performance.

 

Leverage Risk . Borrowing money to buy securities exposes the Fund to leverage because the Fund can achieve a return on a capital base larger than the assets that shareholders have contributed to the Fund. Certain other transactions may give rise to a form of leverage. Leverage also

 

5        Invesco Core Plus Bond Fund

exists when the Fund purchases or sells an instrument or enters into a transaction without investing cash in an amount equal to the full economic exposure of the instrument or transaction and the Fund could lose more than it invested. Such instruments may include, among others, reverse repurchase agreements, written options and derivatives, and transactions may include the use of when-issued, delayed delivery or forward commitment transactions. Except in the case of borrowing, the Fund mitigates leverage risk by segregating or earmarking liquid assets or otherwise covers transactions that may give rise to such risk. To the extent that the Fund is not able to close out a leveraged position because of market illiquidity, the Fund’s liquidity may be impaired to the extent that it has a substantial portion of liquid assets segregated or earmarked to cover obligations and may liquidate portfolio positions when it may not be advantageous to do so. Leveraging may cause the Fund to be more volatile because it may exaggerate the effect of any increase or decrease in the value of the Fund’s portfolio securities. There can be no assurance that the Fund’s leverage strategy will be successful.

 

Liquidity Risk . A security is considered to be illiquid if the Fund is unable to sell such security at a fair price within a reasonable amount of time. A security may be deemed illiquid due to a lack of trading volume in the security or if the security is privately placed and not traded in any public market or is otherwise restricted from trading. The Fund may be unable to sell illiquid securities at the time or price it desires and could lose its entire investment in such securities.

 

Management Risk . The investment techniques and risk analysis used by the Fund’s portfolio managers may not produce the desired results.

 

Market Risk . The prices of and the income generated by the Fund’s securities may decline in response to, among other things, investor sentiment; general economic and market conditions; regional or global instability; and currency and interest rate fluctuations.

 

Mortgage- and Asset-Backed Securities Risk . The Fund may invest in mortgage- and asset-backed securities that are subject to prepayment or call risk, which is the risk that the borrower’s payments may be received earlier or later than expected due to changes in prepayment rates on underlying loans. Faster prepayments often happen when interest rates are falling. As a result, the Fund may reinvest these early payments at lower interest rates, thereby reducing the Fund’s income. Conversely, when interest rates rise, prepayments may happen more slowly, causing the security to lengthen in duration. Longer duration securities tend to be more volatile. Securities may be prepaid at a price less than the original purchase value. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of mortgage-backed securities and could result in losses to the Fund. The risk of such defaults is generally higher in the case of mortgage pools that include subprime mortgages. Subprime mortgages refer to loans made to borrowers with weakened credit histories or with lower capacity to make timely payments on their mortgages.

 

Non-Diversification Risk . The Fund is non-diversified, meaning it can invest a greater portion of its assets in the obligations or securities of any single issuer than a diversified fund. To the extent that a large percentage of the Fund’s assets may be invested in a limited number of issuers, a change in the value of the issuers’ securities could affect the value of the Fund more than would occur in a diversified fund.

 

Reinvestment Risk . Reinvestment risk is the risk that a bond’s cash flows (coupon income and principal repayment) will be reinvested at an interest rate below that on the original bond. If interest rates decline, the underlying bond may rise in value, but the cash flows received from that bond may have to be reinvested at a lower interest rate.

 

Swaps Risk . Swap agreements are not entered into or traded on exchanges and there is no central clearing or guaranty function for swaps. Therefore, swaps are subject to credit risk or the risk of default or non-performance by the counterparty. Swaps could result in losses if the reference index, security or investments do not perform as expected.

 

U.S. Government Obligations Risk . The Fund may invest in obligations issued by U.S. Government agencies and instrumentalities that may receive varying levels of support from the government, which could affect the Fund’s ability to recover should they default.

 

Portfolio Holdings

A description of Fund policies and procedures with respect to the disclosure of Fund portfolio holdings is available in the SAI, which is available at www.invesco.com/us.

 

Fund Management

 

The Adviser(s)

Invesco Advisers, Inc. (Invesco or the Adviser) serves as the Fund’s investment adviser. The Adviser manages the investment operations of the Fund as well as other investment portfolios that encompass a broad range of investment objectives, and has agreed to perform or arrange for the performance of the Fund’s day-to-day management. The Adviser is located at 1555 Peachtree Street, N.E., Atlanta, Georgia 30309. The Adviser, as successor in interest to multiple investment advisers, has been an investment adviser since 1976.

 

Pending Litigation.   Detailed information concerning pending litigation can be found in the SAI.

 

Adviser Compensation

During the fiscal year ended August 31, 2011, the Adviser received compensation of 0.11% of Invesco Core Plus Bond Fund’s average daily net assets after fee waiver and/or expense reimbursement.

 

A discussion regarding the basis for the Board of Trustees’ approval of the investment advisory agreement and investment sub-advisory agreements of the Fund is available in the Fund’s most recent annual report to shareholders for the twelve-month period ended August 31.

 

 

Portfolio Managers

The following individuals are jointly and primarily responsible for the day-to-day management of the Fund’s portfolio:

 

 

 

More information on the portfolio managers may be found at www.invesco.com/us. The Web site is not part of this prospectus.

 

The Fund’s SAI provides additional information about the portfolio managers’ investments in the Fund, a description of the compensation structure and information regarding other accounts managed.

Sales Charges

Purchases of Class A shares of Invesco Core Plus Bond Fund are subject to the maximum 4.75% initial sales charge as listed under the heading “Category II Initial Sales Charges” in the “Shareholder Account Information—Initial Sales Charges (Class A Shares Only)” section of this prospectus. Purchases of Class B shares will be subject to payment of Category I contingent deferred sales charges (CDSCs) during the applicable CDSC

 

6        Invesco Core Plus Bond Fund

periods (including exchanges into Class B Shares of another Invesco Fund during the applicable CDSC periods) listed under the heading “CDSCs on Class B Shares” in the “Shareholder Account Information—Contingent Deferred Sales Charges (CDSCs)” section of the prospectus. Purchases of Class C shares are subject to a CDSC. For more information on CDSCs, see the “Shareholder Account Information—Contingent Deferred Sales Charges (CDSCs)” section of this prospectus.

 

 

The financial highlights show the Fund’s financial history for the past five fiscal years or, if shorter, the period of operations of the Fund or any of its share classes. The financial highlights table is intended to help you understand the Fund’s financial performance. Certain information reflects financial results for a single Fund share. Institutional Class is not offered in this prospectus.

 

The total returns in the table represent the rate that an investor would have earned (or lost) on an investment in the Fund (assuming reinvestment of all dividends and distributions).

 

This information has been audited by PricewaterhouseCoopers LLP, whose report, along with the Fund’s financial statements, is included in the Fund’s annual report, which is available upon request.

 

8        Invesco Core Plus Bond Fund

 

In connection with the final settlement reached between Invesco and certain of its affiliates with certain regulators, including the New York Attorney General’s Office, the SEC and the Colorado Attorney General’s Office (the settlement) arising out of certain market timing and unfair pricing allegations made against Invesco and certain of its affiliates, Invesco and certain of its affiliates agreed, among other things, to disclose certain hypothetical information regarding investment and expense information to Fund shareholders. The chart below is intended to reflect the annual and cumulative impact of the Fund’s expenses, including investment advisory fees and other Fund costs, on the Fund’s returns over a 10-year period. The example reflects the following:

 

There is no assurance that the annual expense ratio will be the expense ratio for the Fund classes for any of the years shown. This is only a hypothetical presentation made to illustrate what expenses and returns would be under the above scenarios; your actual returns and expenses are likely to differ (higher or lower) from those shown below.

 

9        Invesco Core Plus Bond Fund

In addition to the Fund, Invesco serves as investment adviser to many other Invesco and Invesco Van Kampen mutual funds that are offered to retail investors (Invesco Funds or Funds). The following information is about all of the Invesco Funds that offer retail share classes.

 

If shares of the Funds are held in an account maintained by an intermediary or in the name of a conduit investment vehicle (and not in the name of an individual investor), the intermediary or conduit investment vehicle may impose rules which differ from, and/or charge a transaction or other fee in addition to, those described in this prospectus.

 

Additional information is available on the Internet at www.invesco.com/us. Go to the tab for “Accounts & Services,” then click on “Service Center,” or consult the Fund’s SAI, which is available on that same Web site or upon request free of charge. The Web site is not part of this prospectus.

 

Choosing a Share Class

Each Fund may offer multiple classes of shares and not all Funds offer all share classes discussed herein. Each class represents an interest in the same portfolio of investments. Certain classes have higher expenses than other classes which may lower the return on your investment when compared to a less expensive class. In deciding which class of shares to purchase, you should consider the following attributes of the various share classes, among other things: (i) the eligibility requirements that apply to purchases of a particular class, (ii) the initial sales charges and contingent deferred sales charges (CDSCs), if any, applicable to the class, (iii) the 12b-1 fee, if any, paid by the class, and (iv) any services you may receive from a financial intermediary. Please contact your financial adviser to assist you in making your decision. Please refer to the prospectus fee table for more information on the fees and expenses of a particular Fund’s share classes.

 

 

 

In addition to the share classes shown in the chart above, the following Funds offer the following additional share classes on a limited basis:

 

 

 

 

 

 

A-1        The Invesco Funds

MCF—12/11

Share Class Eligibility

 

Class A, B, C and Invesco Cash Reserve Shares

Class A, C and Invesco Cash Reserve Shares are available to all retail investors, including individuals, trusts, corporations and other business and charitable organizations and eligible employee benefit plans. The share classes offer different fee structures which are intended to compensate financial intermediaries for services provided in connection with the sale of shares and continued maintenance of the customer relationship. You should consider the services provided by your financial adviser and any other financial intermediaries who will be involved in the servicing of your account when choosing a share class.

 

New or additional investments in Class B shares are not permitted. Existing shareholders of Class B shares may continue as Class B shareholders, continue to reinvest dividends and capital gains distributions in Class B shares and exchange their Class B shares for Class B shares of other Funds as permitted by the current exchange privileges, until they convert. For Class B shares outstanding on November 29, 2010 and Class B shares acquired upon reinvestment of dividends, all Class B share attributes including the associated Rule 12b-1 fee, CDSC and conversion features, will continue.

 

Class A2 Shares

Class A2 shares, which are offered only on Invesco Limited Maturity Treasury Fund and Invesco Tax-Free Intermediate Fund, are closed to new investors. All references in this prospectus to Class A shares, shall include Class A2 shares, unless otherwise noted.

 

Class A5, B5, C5 and R5 Shares

Class A5, B5, C5 and R5 shares are closed to new investors. Only investors who have continuously maintained an account in Class A5, C5 or R5 of a specific Fund may make additional purchases into Class A5, C5 and R5, respectively, of such specific Fund. All references in this Prospectus to Class A, B, C or R shares of the Invesco Funds shall include Class A5 (excluding Invesco Money Market Fund), B5, C5, or R5 shares, respectively, of the Invesco Funds, unless otherwise noted. All references in this Prospectus to Invesco Cash Reserve Shares of Invesco Money Market Fund shall include Class A5 shares of Invesco Money Market Fund, unless otherwise noted.

 

Class P Shares

In addition to the other share classes discussed herein, the Invesco Summit Fund offers Class P shares, which were historically sold only through the AIM Summit Investors Plans I and II (each a Plan and, collectively, the Summit Plans). Class P shares are sold with no initial sales charge and have a 12b-1 fee of 0.10%. However, Class P shares are not sold to members of the general public. Only shareholders who had accounts in the Summit Plans at the close of business on December 8, 2006 may purchase Class P shares and only until the total of their combined investments in the Summit Plans and in Class P shares directly equals the face amount of their former Plan under the 30 year extended investment option. The face amount of a Plan is the combined total of all scheduled monthly investments under the Plan. For a Plan with a scheduled monthly investment of $100.00, the face amount would have been $36,000.00 under the 30 year extended investment option.

 

Class R Shares

Class R shares are generally available only to eligible employee benefit plans. These may include, for example, retirement and deferred compensation plans maintained pursuant to Sections 401, 403, and 457 of the Internal Revenue Code (the Code); nonqualified deferred compensation plans; health savings accounts maintained pursuant to Section 223 of the Code; and voluntary employees’ beneficiary arrangements maintained pursuant to Section 501(c)(9) of the Code. Retirement plans maintained pursuant to Section 401 generally include 401(k) plans, profit sharing plans, money purchase pension plans, and defined benefit plans. Class R shares are generally not available for individual retirement accounts (IRAs) such as traditional, Roth, SEP, SAR-SEP and SIMPLE IRAs.

 

Class S Shares

Class S shares are limited to investors who purchase shares with the proceeds received from a systematic contractual investment plan redemption within the 12 months prior to purchasing Class S shares, and who purchase through an approved financial intermediary that has an agreement with the distributor to sell Class S shares. Class S shares are not otherwise sold to members of the general public. An investor purchasing Class S shares will not pay an initial sales charge. The investor will no longer be eligible to purchase additional Class S shares at that point where the value of the contributions to the prior systematic contractual investment plan combined with the subsequent Class S share contributions equals the face amount of what would have been the investor’s systematic contractual investment plan under the 30-year investment option. The face amount of a systematic contractual investment plan is the combined total of all scheduled monthly investments under that plan. For a plan with a scheduled monthly investment of $100.00, the face amount would have been $36,000.00 under the 30-year extended investment option.

 

Class Y Shares

Class Y shares are generally available to investors who purchase through a fee-based advisory account with an approved financial intermediary or to any current, former or retired trustee, director, officer or employee (or immediate family members of a current, former or retired trustee, director, officer or employee) of any Invesco Fund or of Invesco Ltd. or any of its subsidiaries. In fee-based advisory programs, a financial intermediary typically charges each investor a fee based on the value of the investor’s account in exchange for servicing that account.

 

Subject to any conditions or limitations imposed on the servicing of Class Y shares by your financial adviser, if you received Class Y shares as a result of a merger or reorganization of a predecessor fund into any of the Funds, you will be permitted to make additional Class Y share purchases.

 

Investor Class Shares

Some of the Funds offer Investor Class shares.  Investor Class shares are sold with no initial sales charge and have a maximum 12b-1 fee of 0.25%. Investor Class shares are not sold to members of the general public. Only the following persons may purchase Investor Class shares:

 

A-2        The Invesco Funds

Distribution and Service (12b-1) Fees

Except as noted below, each Fund has adopted a distribution plan or distribution plan and service plan pursuant to SEC Rule 12b-1. A 12b-1 plan allows a Fund to pay distribution and service fees to Invesco Distributors, Inc. (Invesco Distributors) to compensate or reimburse, as applicable, Invesco Distributors for its efforts in connection with the sale and distribution of the Fund’s shares and for services provided to shareholders, all or a substantial portion of which are paid to the dealer of record. Because the Funds pay these fees out of their assets on an ongoing basis, over time these fees will increase the cost of your investment and may cause you to pay more than the maximum permitted initial sales charges described in this prospectus.

 

The following Funds and share classes do not have 12b-1 plans:

Under the applicable distribution plan or distribution plan and service plan, the Funds may pay distribution and service fees up to the following amounts with respect to each Fund’s average daily net assets with respect to such class:

 

Please refer to the prospectus fee table for more information on a particular Fund’s 12b-1 fees.

 

Initial Sales Charges (Class A Shares Only)

The Funds are grouped into four categories for determining initial sales charges. The “Other Information” section of each Fund’s prospectus will tell you the sales charge category in which the Fund is classified. As used below, the term “offering price” with respect to all categories of Class A shares includes the initial sales charge.

 

 

 

 

 

Class A Shares Sold Without an Initial Sales Charge

Certain categories of investors are permitted to purchase and certain intermediaries are permitted to sell Class A shares of the Funds without an initial sales charge because their transactions involve little or no expense. The investors who may purchase Class A shares without paying an initial sales charge include the following:

 

No investor will pay an initial sales charge in the following circumstances:

 

A-3        The Invesco Funds

 

Reduced Sales Charges and Sales Charge Exceptions

You may qualify for reduced sales charges or sales charge exceptions. Qualifying types of accounts for you and your “Immediate Family” as described in a Fund’s SAI include individual, joint, certain trusts, 529 college savings plan and Coverdell Education Savings, certain retirement plans established for the benefit of an individual, and Uniform Gifts/Transfers to Minor Acts accounts. To qualify for these reductions or exceptions, you or your financial adviser must notify the transfer agent and provide the necessary documentation at the time of purchase that your purchase qualifies for such treatment. Certain individuals and employer-sponsored retirement plans may link accounts for the purpose of qualifying for lower initial sales charges.

 

Purchases of Class A shares of Invesco Tax-Exempt Cash Fund or Invesco Cash Reserve Shares of Invesco Money Market Fund or Investor Class shares of any fund will not be taken into account in determining whether a purchase qualifies for a reduction in initial sales charges pursuant to Rights of Accumulation or Letters of Intent.

 

Rights of Accumulation

You may combine your new purchases of Class A shares of a Fund with other Fund shares currently owned (Class A, B, C, P, R, S or Y) for the purpose of qualifying for the lower initial sales charge rates that apply to larger purchases. The applicable initial sales charge for the new purchase is based on the total of your current purchase and the value of other shares owned based on their current public offering price. The transfer agent may automatically link certain accounts registered in the same name with the same taxpayer identification number for the purpose of qualifying you for lower initial sales charge rates.

 

Letters of Intent

Under a Letter of Intent (LOI), you commit to purchase a specified dollar amount of Class A shares of one or more Funds during a 13-month period. The amount you agree to purchase determines the initial sales charge you pay. If the full amount committed to in the LOI is not invested by the end of the 13-month period, your account will be assessed the higher initial sales charge that would normally be applicable to the total amount actually invested.

 

Reinstatement Following Redemption

If you redeem any class of shares of a Fund, you may reinvest all or a portion of the proceeds from the redemption in the same share class of any Fund in the same Category within 180 days of the redemption without paying an initial sales charge. Class B, P and S redemptions may be reinvested only into Class A shares with no initial sales charge. Class Y redemptions may be reinvested into either Class Y shares or Class A shares with no initial sales charge.

 

This reinstatement privilege does not apply to a purchase made through a regularly scheduled automatic investment plan, such as a purchase by a regularly scheduled payroll deduction or transfer from a bank account.

 

In order to take advantage of this reinstatement privilege, you must inform your financial adviser or the transfer agent that you wish to do so at the time of your investment.

 

Contingent Deferred Sales Charges (CDSCs)

 

CDSCs on Class A Shares and Invesco Cash Reserve Shares of Invesco Money Market Fund

You can purchase $1,000,000 or more (a Large Purchase) of Class A shares of Category I, II and IV Funds without paying an initial sales charge. However, if you redeem these shares prior to 18 months after the date of purchase, they will be subject to a CDSC of 1%.

 

If you currently own Class A shares of a Category I, II or IV Fund, and make additional purchases without paying an initial sales charge that result in account balances of $1,000,000 or more, the additional shares purchased will be subject to an 18-month, 1% CDSC.

 

If Invesco Distributors pays a concession to the dealer of record in connection with a Large Purchase of Class A shares by an employee benefit plan, the Class A shares may be subject to a 1% CDSC if all of the plan’s shares are redeemed within one year from the date of the plan’s initial purchase.

 

If you acquire Invesco Cash Reserve Shares of Invesco Money Market Fund or Class A shares of Invesco Tax-Exempt Cash Fund through an exchange involving Class A shares that were subject to a CDSC, the shares acquired as a result of the exchange will continue to be subject to that same CDSC.