AIM INVESTMENT FUNDS
497, 2000-09-11
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<PAGE>   1
        AIM GLOBAL
        INFRASTRUCTURE FUND

--------------------------------------------------------------------------------

        AIM Global Infrastructure Fund seeks to provide long-term growth of
        capital.

                                                    AIM --Registered Trademark--
        PROSPECTUS
        FEBRUARY 28, 2000,
        AS REVISED
        SEPTEMBER 11, 2000
                                       This prospectus contains important
                                       information about the Class A, B and C
                                       shares of the fund. Please read it
                                       before investing and keep it for
                                       future reference.

                                       As with all other mutual fund
                                       securities, the Securities and
                                       Exchange Commission 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:
                                          - is not FDIC insured;
                                          - may lose value; and
                                          - is not guaranteed by a bank.


[AIM LOGO APPEARS HERE]                       INVEST WITH DISCIPLINE
--Registered Trademark--                     --Registered Trademark--
<PAGE>   2
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

TABLE OF CONTENTS
--------------------------------------------------------------------------------

<TABLE>
<S>                                      <C>
INVESTMENT OBJECTIVE AND STRATEGIES          1
- - - - - - - - - - - - - - - - - - - - - - - -

PRINCIPAL RISKS OF INVESTING IN THE FUND     1
- - - - - - - - - - - - - - - - - - - - - - - -

PERFORMANCE INFORMATION                      3
- - - - - - - - - - - - - - - - - - - - - - - -

Annual Total Returns                         3

Performance Table                            3

FEE TABLE AND EXPENSE EXAMPLE                4
- - - - - - - - - - - - - - - - - - - - - - - -

Fee Table                                    4

Expense Example                              4

FUND MANAGEMENT                              5
- - - - - - - - - - - - - - - - - - - - - - - -

The Advisor                                  5

Advisor Compensation                         5

Portfolio Managers                           5

OTHER INFORMATION                            5
- - - - - - - - - - - - - - - - - - - - - - - -

Sales Charges                                5

Dividends and Distributions                  5

FINANCIAL HIGHLIGHTS                         6
- - - - - - - - - - - - - - - - - - - - - - - -

SHAREHOLDER INFORMATION                    A-1
- - - - - - - - - - - - - - - - - - - - - - - -

Choosing a Share Class                     A-1

Purchasing Shares                          A-3

Redeeming Shares                           A-4

Exchanging Shares                          A-6

Pricing of Shares                          A-8

Taxes                                      A-8

OBTAINING ADDITIONAL INFORMATION    Back Cover
- - - - - - - - - - - - - - - - - - - - - - - -
</TABLE>

The AIM Family of Funds, The AIM Family of Funds and Design (i.e., the AIM
logo), AIM and Design, AIM, AIM Funds, AIM Funds and Design, AIM Investor, AIM
LINK, AIM Institutional Funds, aimfunds.com, La Familia AIM de Fondos, La
Familia AIM de Fondos and Design, Invierta con DISCIPLINA and Invest with
DISCIPLINE are registered service marks and AIM Bank Connection and AIM Internet
Connect are service marks of A I M Management Group Inc.

No dealer, sales person or any other person has been authorized to give any
information or to make any representations other than those contained in this
prospectus, and you should not rely on such other information or
representations.
<PAGE>   3
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

INVESTMENT OBJECTIVE AND STRATEGIES
--------------------------------------------------------------------------------

The fund's investment objective is long-term growth of capital. The investment
objective of the fund may be changed by the Board of Trustees without
shareholder approval.

  The fund seeks to meet this objective by investing, normally, at least 65% of
its total assets in equity securities of domestic and foreign infrastructure
companies. The fund considers an "infrastructure company" to be one that (1)
derives at least 50% of its revenues or earnings from infrastructure activities;
or (2) devotes at least 50% of its assets to such activities, based on its most
recent fiscal year. Such companies include those that design, develop, or
provide products and services significant to a country's infrastructure (such as
transportation systems, communications equipment and services, nuclear power and
other energy sources, water supply, and oil, gas, and coal exploration). The
fund may invest up to 35% of its assets in debt securities issued by
infrastructure companies, or in equity and debt securities of other companies
the portfolio managers believe will benefit from developments in the
infrastructure industry.

  The fund will normally invest in the securities of companies located in at
least three different countries, including the United States, and may invest a
significant portion of its assets in the securities of U.S. issuers. However,
the fund will invest no more than 50% of its total assets in the securities of
issuers in any one country, other than the U.S. The fund may invest
substantially in securities denominated in one or more currencies. The fund may
invest in companies located in developing countries, i.e., those that are in the
initial stages of their industrial cycles. The fund may also invest up to 20% of
its total assets in lower-quality debt securities, i.e., "junk bonds."

  The portfolio managers allocate the fund's assets among securities of
countries and in currency denominations that are expected to provide the best
opportunities for meeting the fund's investment objective. In analyzing specific
companies for possible investment, the portfolio managers ordinarily look for
several of the following characteristics: above-average per share earnings
growth; high return on invested capital; a healthy balance sheet; sound
financial and accounting policies and overall financial strength; strong
competitive advantages; effective research and product development and
marketing; development of new technologies; efficient service; pricing
flexibility; strong management; and general operating characteristics that will
enable the companies to compete successfully in their respective markets. The
portfolio managers consider whether to sell a particular security when any of
those factors materially changes.

  In anticipation of or in response to adverse market conditions, for cash
management purposes or for defensive purposes, the fund may temporarily hold all
or a portion of its assets in cash (U.S. dollars, foreign currencies or
multinational currency units), money market instruments, shares of affiliated
money market funds, or high-quality debt securities. As a result, the fund may
not achieve its investment objective.

PRINCIPAL RISKS OF INVESTING IN THE FUND
--------------------------------------------------------------------------------

There is a risk that you could lose all or a portion of your investment in the
fund. The value of your investment in the fund will go up and down with the
prices of the securities in which the fund invests. The prices of equity
securities change in response to many factors, including the historical and
prospective earnings of the issuer, the value of its assets, general economic
conditions, interest rates, investor perceptions, and market liquidity.

  The value of the fund's shares is particularly vulnerable to factors affecting
the infrastructure industry, such as substantial political, environmental, and
other governmental regulation. Such regulation may, among other things, increase
compliance costs and proscribe the development of new technologies. In addition,
increases in fuel, energy and other prices have historically limited the growth
potential of infrastructure companies.

  Because the fund focuses its investments in the infrastructure industry, the
value of your fund shares may rise and fall more than the value of shares of a
fund that invests more broadly.

  The prices of foreign securities may be further affected by other factors,
including:

- Currency exchange rates--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.

- Political and economic conditions--The value of the fund's foreign investments
  may be adversely affected by political and social instability in their home
  countries and by changes in economic or taxation policies in those countries.

- Regulations--Foreign companies generally are subject to less stringent
  regulations, including financial and accounting controls, than are U.S.
  companies. As a result, there generally is less publicly available information
  about foreign companies than about U.S. companies.

- Markets--The securities markets of other countries are smaller than U.S.
  securities markets. As a result, many foreign



                                        1
<PAGE>   4
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------


  securities may be less liquid and their prices may be more volatile than U.S.
  securities.

  These factors may affect the prices of securities issued by foreign companies
and governments located in developing countries more than those in countries
with mature economies. For example, many developing countries have, in the past,
experienced high rates of inflation or sharply devalued their currencies against
the U.S. dollar, thereby causing the value of investments in companies located
in those countries to decline. Transaction costs are often higher in developing
countries and there may be delays in settlement procedures.

  The fund may participate in the initial public offering (IPO) market. Because
of the fund's small asset base, any investment the fund may make in IPOs may
significantly increase the fund's total return. As the fund's assets grow, the
impact of IPO investments will decline, which may reduce the fund's total
return.

  An investment in the fund is not a deposit of a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.


                                        2
<PAGE>   5
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

PERFORMANCE INFORMATION
--------------------------------------------------------------------------------

The bar chart and table shown below provide an indication of the risks of
investing in the fund. The fund's past performance is not necessarily an
indication of its future performance.

ANNUAL TOTAL RETURNS
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The following bar chart shows changes in the performance of the fund's Class A
shares from year to year. The bar chart does not reflect sales loads. If it did,
the annual total returns shown would be lower.

                     [GRAPH]
<TABLE>
<CAPTION>
                                              ANNUAL
YEAR ENDED                                    TOTAL
DECEMBER 31                                   RETURNS
-----------                                   -------
<S>                                           <C>
1995 .......................................   6.11%
1996 .......................................  22.56%
1997 .......................................   3.10%
1998 .......................................   4.35%
1999 .......................................  38.96%
</TABLE>

  During the periods shown in the bar chart, the highest quarterly return was
32.53% (quarter ended December 31, 1999) and the lowest quarterly return was
-15.23% (quarter ended September 30, 1998).

PERFORMANCE TABLE

The following performance table compares the fund's performance to that of a
broad-based securities market index. The fund's performance reflects payment of
sales loads.

<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(for the periods ended                                       SINCE      INCEPTION
December 31, 1999)                       1 YEAR   5 YEARS   INCEPTION     DATE
---------------------------------------------------------------------------------
<S>                                      <C>      <C>       <C>         <C>
Class A                                  32.36%    13.11%     12.27%    05/31/94
Class B                                  33.29     13.43      12.58     05/31/94
Class C                                     --        --         --     03/01/99
MSCI AC World Index(1)                   27.31     18.90      17.10(2)  05/31/94(2)
---------------------------------------------------------------------------------
</TABLE>

(1) The Morgan Stanley Capital International All Country World Index measures
    the performance of securities listed on the major world stock exchanges of
    47 markets, including both developed and emerging markets.
(2) The average annual total return given is since the inception date of the
    class with the longest performance history.


                                        3


<PAGE>   6
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

FEE TABLE AND EXPENSE EXAMPLE
--------------------------------------------------------------------------------

FEE TABLE

This table describes the fees and expenses that you may pay if you buy and hold
shares of the fund:

<TABLE>
<CAPTION>
SHAREHOLDER FEES
- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(fees paid directly from
your investment)              CLASS A   CLASS B   CLASS C
---------------------------------------------------------
<S>                           <C>       <C>       <C>
Maximum Sales Charge (Load)
Imposed on Purchases
(as a percentage of
offering price)               4.75%     None      None

Maximum Deferred
Sales Charge (Load)
(as a percentage of
original purchase
price or redemption
proceeds, whichever is less)  None(1)   5.00%     1.00%
---------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
ANNUAL FUND OPERATING EXPENSES
- - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(expenses that are deducted
from fund assets)           CLASS A   CLASS B   CLASS C
---------------------------------------------------------
<S>                         <C>       <C>       <C>
Management Fees              0.98%     0.98%     0.98%

Distribution and/or
Service (12b-1) Fees         0.50      1.00      1.00

Other Expenses               0.72      0.72      0.72

Total Annual Fund
Operating Expenses           2.20      2.70      2.70

Expense

Reimbursement(2)             0.20      0.20      0.20

Net Expenses                 2.00      2.50      2.50
---------------------------------------------------------
</TABLE>

(1) If you buy $1,000,000 or more of Class A shares and redeem these shares
    within 18 months from the date of purchase, you may pay a 1% contingent
    deferred sales charge (CDSC) at the time of redemption.
(2) The investment advisor has contractually agreed to limit Total Annual Fund
    Operating Expenses (excluding interest, taxes, dividends on short sales,
    extraordinary items and increases in expenses due to expense offset
    arrangements, if any) on Class A, Class B and Class C shares to 2.00%, 2.50%
    and 2.50%, respectively.

You may also be charged a transaction or other fee by the financial institution
managing your account.

  As a result of 12b-1 fees, long-term shareholders in the fund may pay more
than the maximum permitted initial sales charge.

EXPENSE EXAMPLE

This example is intended to help you compare the costs of investing in different
classes of the fund with the cost of investing in other mutual funds.

  The example assumes that you invest $10,000 in the fund for the time periods
indicated and then redeem all of your shares at the end of those periods. The
example also assumes that your investment has a 5% return each year and that the
fund's gross operating expenses remain the same. To the extent fees are waived,
the expenses will be lower. Although your actual returns and costs may be higher
or lower, based on these assumptions your costs would be:

<TABLE>
<CAPTION>
              1 YEAR   3 YEARS   5 YEARS   10 YEARS
---------------------------------------------------
<S>           <C>       <C>       <C>       <C>
Class A        $689     $1,136    $1,608     $2,908
Class B         775      1,144     1,640      2,931
Class C         375        844     1,440      3,051
---------------------------------------------------
</TABLE>

You would pay the following expenses if you did not redeem your shares:

<TABLE>
<CAPTION>
              1 YEAR   3 YEARS   5 YEARS   10 YEARS
---------------------------------------------------
<S>           <C>       <C>       <C>       <C>
Class A        $689     $1,136    $1,608     $2,908
Class B         275        844     1,440      2,931
Class C         275        844     1,440      3,051
---------------------------------------------------
</TABLE>


                                        4
<PAGE>   7
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

FUND MANAGEMENT
--------------------------------------------------------------------------------

THE ADVISOR

A I M Advisors, Inc. (the advisor) serves as the investment advisor. The advisor
is located at 11 Greenway Plaza, Suite 100, Houston, Texas 77046-1173. The
advisor supervises all aspects of the fund's operations and provides investment
advisory services to the fund, including obtaining and evaluating economic,
statistical and financial information to formulate and implement investment
programs for the fund.

  The advisor has acted as an investment advisor since its organization in 1976.
Today, the advisor, together with its subsidiaries, advises or manages over 120
investment portfolios, including the fund, encompassing a broad range of
investment objectives.

ADVISOR COMPENSATION

During the fiscal year ended October 31, 1999, the advisor received compensation
of 0.76% of average daily net assets.

PORTFOLIO MANAGERS

The advisor uses a team approach to investment management. The individual
members of the team who are primarily responsible for the day-to-day management
of the fund's portfolio, all of whom are officers of A I M Capital Management,
Inc., a wholly owned subsidiary of the advisor, are

- Claude C. Cody IV, Senior Portfolio Manager, who has been responsible for the
  fund since 1999 and has been associated with the advisor and/or its affiliates
  since 1992.

- Craig A. Smith, Senior Portfolio Manager, who has been responsible for the
  fund since 1999 and has been associated with the advisor and/or its affiliates
  since 1989.

- Meggan M. Walsh, Portfolio Manager, who has been responsible for the fund
  since 1999 and has been associated with the advisor and/or its affiliates
  since 1991.

OTHER INFORMATION
--------------------------------------------------------------------------------

SALES CHARGES

Purchases of Class A shares of AIM Global Infrastructure Fund are subject to the
maximum 4.75% initial sales charge as listed under the heading "CATEGORY II
Initial Sales Charges" in the "Shareholder Information--Choosing a Share Class"
section of this prospectus. Purchases of Class B and Class C shares are subject
to the contingent deferred sales charges listed in that section.

DIVIDENDS AND DISTRIBUTIONS

The fund expects that its distributions, if any, will consist primarily of
capital gains.

DIVIDENDS

The fund generally declares and pays dividends, if any, annually.

CAPITAL GAINS DISTRIBUTIONS

The fund generally distributes any long-term and short-term capital gains, if
any, annually.


                                        5
<PAGE>   8
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

FINANCIAL HIGHLIGHTS
--------------------------------------------------------------------------------

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.

  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.

<TABLE>
<CAPTION>
                                                                      CLASS A
                                                  ---------------------------------------------------
                                                              YEAR ENDED OCTOBER 31,
                                                  ---------------------------------------------------
                                                    1999        1998(a)   1997(a)   1996(a)     1995
-----------------------------------------------------------------------------------------------------
<S>                                               <C>         <C>        <C>        <C>       <C>
Net asset value, beginning of period              $  14.18     $ 15.01    $ 14.42   $ 12.11   $ 12.47
Income from investment operations:
  Net investment income (loss)                       --           0.07(b)   (0.01)    (0.03)    (0.03)(c)
  Net realized and unrealized gain (loss) on
    investments                                       3.07       (0.79)      1.32      2.34     (0.33)
    Net increase (decrease) from investment
      operations                                      3.07       (0.72)      1.31      2.31     (0.36)
Distributions to shareholders:
  From net investment income                         (0.07)      --         --        --          --
  From net realized gain on investments              (0.85)      (0.11)     (0.72)    --          --
    Total distributions                              (0.92)      (0.11)     (0.72)    --          --
Net asset value, end of period                    $  16.33     $ 14.18    $ 15.01   $ 14.42   $ 12.11
Total return(d)                                      22.72%      (4.82)%     9.38%    19.08%    (2.89)%
-----------------------------------------------------------------------------------------------------
Ratios and supplemental data:
-----------------------------------------------------------------------------------------------------
Net assets, end of period (in 000s)               $ 19,958     $23,531    $38,281   $38,397   $36,241
Ratio of net investment income (loss) to
  average net assets:
  With fee waivers                                    0.09%(e)    0.52%     (0.09)%   (0.19)%   (0.32)%
  Without fee waivers                                (0.13)%(e)   0.28%     (0.17)%   (0.30)%   (0.58)%
Ratio of expenses to average net assets:
  With fee waivers                                    2.00%(e)    1.99%      2.00%     2.14%     2.36%
  Without fee waivers                                 2.22%(e)    2.23%      2.08%     2.25%     2.62%
Portfolio turnover rate                                 49%         96%        41%       41%       45%
-----------------------------------------------------------------------------------------------------
</TABLE>

(a) These selected per share data were calculated based upon average shares
    outstanding during the period.
(b) Before reimbursement the net investment income per share would have been
    reduced by $0.03.
(c) Before reimbursement the net investment income per share would have been
    reduced by $0.03.
(d) Total return does not include sales charges and is not annualized for
    periods less than one year.
(e) Ratios are based on average net assets of $21,681,105.


                                        6
<PAGE>   9
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

FINANCIAL HIGHLIGHTS (CONTINUED)
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                      CLASS B
                                                  ----------------------------------------------------
                                                              YEAR ENDED OCTOBER 31,
                                                  ----------------------------------------------------
                                                   1999(a)     1998(a)   1997(a)   1996(a)      1995
------------------------------------------------------------------------------------------------------
<S>                                               <C>         <C>       <C>        <C>        <C>
Net asset value, beginning of period              $  13.87    $ 14.75   $ 14.24    $ 12.03   $  12.45
Income from investment operations:
  Net investment income (loss)                       (0.06)     --   (b)  (0.09)     (0.09)     (0.09)(c)
  Net realized and unrealized gain (loss) on
    investments                                       2.98      (0.77)     1.32       2.30      (0.33)
    Net increase (decrease) from investment
      operations                                      2.92      (0.77)     1.23       2.21      (0.42)
Distributions to shareholders:
  From net realized gain on investments              (0.85)     (0.11)    (0.72)        --        --
    Total distributions                              (0.85)     (0.11)    (0.72)        --        --
Net asset value, end of period                    $  15.94    $ 13.87   $ 14.75    $ 14.24   $  12.03
Total return(d)                                      22.03%     (5.31)%    8.83%     18.37%     (3.37)%
-----------------------------------------------------------------------------------------------------
Ratios and supplemental data:
-----------------------------------------------------------------------------------------------------
Net assets, end of period (in 000s)               $ 25,134    $32,349   $57,199    $53,678   $ 50,181
Ratio of net investment income (loss) to average
  net assets:
  With fee waivers                                   (0.41)%(e)  0.02%    (0.59)%    (0.69)%    (0.82)%
  Without fee waivers                                (0.63)%(e) (0.22)%   (0.67)%    (0.80)%    (1.08)%
Ratio of expenses to average net assets:
  With fee waivers                                    2.50%(e)   2.49%     2.50%      2.64%      2.86%
  Without fee waivers                                 2.72%(e)   2.73%     2.58%      2.75%      3.12%
Portfolio turnover rate                                 49%        96%       41%        41%        45%
-----------------------------------------------------------------------------------------------------
</TABLE>

(a) These selected per share data were calculated based upon average shares
    outstanding during the period.
(b) Before reimbursement the net investment income per share would have been
    reduced by $0.03.
(c) Before reimbursement the net investment income per share would have been
    reduced by $0.03.
(d) Total return does not include sales charges and is not annualized for
    periods less than one year.
(e) Ratios are based on average net assets of $28,390,371.

<TABLE>
<CAPTION>
                                                                 CLASS C
                                                              -------------
                                                              MARCH 1, 1999
                                                                   TO
                                                               OCTOBER 31,
                                                                 1999(a)
---------------------------------------------------------------------------
<S>                                                           <C>
Net asset value, beginning of period                             $13.99
Income from investment operations:
  Net investment income (loss)                                    (0.03)
  Net realized and unrealized gain (loss) on investments           1.98
    Net increase (decrease) from investment operations             1.95
Distributions to shareholders:
  From net investment income                                      --
  From net realized gain on investments                           --
    Total distributions                                           --
Net asset value, end of period                                   $15.94
Total return(b)                                                   13.94%
---------------------------------------------------------------------------
Ratios and supplemental data:
---------------------------------------------------------------------------
Net assets, end of period (in 000s)                              $   16
Ratio of net investment income (loss) to average net assets:
  With fee waivers                                                (0.41)%(c)
  Without fee waivers                                             (0.63)%(c)
Ratio of expenses to average net assets:
  With fee waivers                                                 2.50%(c)
  Without fee waivers                                              2.72%(c)
Portfolio turnover rate                                              49%
---------------------------------------------------------------------------
</TABLE>

(a) These selected per share data were calculated based upon the average shares
    outstanding during the period.
(b) Total return does not include sales charges and is not annualized for
    periods less than one year.
(c) Ratios are annualized and based on average net assets of $10,439.


                                        7
<PAGE>   10
                                 -------------
                                 THE AIM FUNDS
                                 -------------

SHAREHOLDER INFORMATION
--------------------------------------------------------------------------------

In addition to the fund, A I M Advisors, Inc. serves as investment advisor to
many other mutual funds (the AIM Funds). The following information is about all
the AIM Funds.

CHOOSING A SHARE CLASS

Many of the AIM Funds have multiple classes of shares, each class representing
an interest in the same portfolio of investments. When choosing a share class,
you should consider the factors below:

<TABLE>
<CAPTION>
CLASS A                              CLASS B                              CLASS C
---------------------------------------------------------------------------------------------------------
<S>                                  <C>                                  <C>
- Initial sales charge               - No initial sales charge            - No initial sales charge
- Reduced or waived initial sales    - Contingent deferred sales          - Contingent deferred sales
  charge for certain purchases         charge on redemptions within         charge on redemptions within
                                       six years                            one year

- Lower distribution and service     - 12b-1 fee of 1.00%                 - 12b-1 fee of 1.00%
  (12b-1) fee than Class B or
  Class C shares (See "Fee Table
  and Expense Example")

                                     - Converts to Class A shares         - Does not convert to Class A
                                       eight years after the end of         shares
                                       the month in which shares
                                       were purchased along with a
                                       pro rata portion of its
                                       reinvested dividends and
                                       distributions(1)

- Generally more appropriate for     - Purchase orders limited to         - Generally more appropriate
  long-term investors                  amounts less than $250,000           for short-term investors
</TABLE>

      (1) AIM Money Market Fund: Class B shares convert to AIM Cash Reserve
          Shares.
          AIM Global Trends Fund: If you held Class B shares on May 29, 1998 and
          continue to hold them, those shares will convert to Class A shares of
          that fund seven years after the end of the month in which shares were
          purchased. If you exchange those shares for Class B shares of another
          AIM Fund, the shares into which you exchanged will not convert to
          Class A shares until eight years after the end of the month in which
          you purchased your original shares.
--------------------------------------------------------------------------------

DISTRIBUTION AND SERVICE (12B-1) FEES

Each AIM Fund (except AIM Tax-Free Intermediate Fund) has adopted 12b-1 plans
that allow the AIM Fund to pay distribution fees to A I M Distributors, Inc.
(the distributor) for the sale and distribution of its shares and fees for
services provided to shareholders, all or a substantial portion of which are
paid to the dealer of record. Because the AIM Fund pays these fees out of its
assets on an ongoing basis, over time these fees will increase the cost of your
investment and may cost you more than paying other types of sales charges.

SALES CHARGES

Generally, you will not pay a sales charge on purchases or redemptions of Class
A shares of AIM Tax-Exempt Cash Fund and AIM Cash Reserve Shares of AIM Money
Market Fund. You may be charged a contingent deferred sales charge if you redeem
AIM Cash Reserve Shares of AIM Money Market Fund acquired through certain
exchanges. Sales charges on all other AIM Funds and classes of those Funds are
detailed below. As used below, the term "offering price" with respect to all
categories of Class A shares includes the initial sales charge.

INITIAL SALES CHARGES

The AIM Funds are grouped into three categories with respect to initial sales
charges. The "Other Information" section of your prospectus will tell you in
what category your particular AIM Fund is classified.

<TABLE>
<CAPTION>
CATEGORY I INITIAL SALES CHARGES
------------------------------------------------------------
                                          INVESTOR'S
                                         SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $   25,000      5.50%          5.82%
$ 25,000 but less than $   50,000      5.25           5.54
$ 50,000 but less than $  100,000      4.75           4.99
$100,000 but less than $  250,000      3.75           3.90
$250,000 but less than $  500,000      3.00           3.09
$500,000 but less than $1,000,000      2.00           2.04
-------------------------------------------------------------
</TABLE>

                                      A-1                            MCF--06/00

<PAGE>   11
                                 -------------
                                 THE AIM FUNDS
                                 -------------

<TABLE>
<CAPTION>
CATEGORY II INITIAL SALES CHARGES
------------------------------------------------------------
                                           INVESTOR'S
                                          SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $   50,000      4.75%          4.99%
$ 50,000 but less than $  100,000      4.00           4.17
$100,000 but less than $  250,000      3.75           3.90
$250,000 but less than $  500,000      2.50           2.56
$500,000 but less than $1,000,000      2.00           2.04
-------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
CATEGORY III INITIAL SALES CHARGES
-------------------------------------------------------------
                                          INVESTOR'S
                                         SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $  100,000      1.00%          1.01%
$100,000 but less than $  250,000      0.75           0.76
$250,000 but less than $1,000,000      0.50           0.50
-------------------------------------------------------------
</TABLE>

CONTINGENT DEFERRED SALES CHARGES FOR CLASS A SHARES

You can purchase $1,000,000 or more of Class A shares at net asset value.
However, if you purchase shares of that amount in Categories I or II, they will
be subject to a contingent deferred sales charge (CDSC) of 1% if you redeem them
prior to 18 months after the date of purchase. The distributor may pay a dealer
concession and/or a service fee for purchases of $1,000,000 or more.

CONTINGENT DEFERRED SALES CHARGES FOR
CLASS B AND CLASS C SHARES

You can purchase Class B and Class C shares at their net asset value per share.
However, when you redeem them, they are subject to a CDSC in the following
percentages:

<TABLE>
<CAPTION>
     YEAR SINCE
    PURCHASE MADE          CLASS B            CLASS C
----------------------------------------------------------
<S>                   <C>                <C>
First                         5%                1%
Second                        4                None
Third                         3                None
Fourth                        3                None
Fifth                         2                None
Sixth                         1                None
Seventh and following       None               None
----------------------------------------------------------
</TABLE>

COMPUTING A CDSC

The CDSC on redemptions of shares is computed based on the lower of their
original purchase price or current market value, net of reinvested dividends and
capital gains distributions. In determining whether to charge a CDSC, we will
assume that you have redeemed shares on which there is no CDSC first and, then,
shares in the order of purchase.

REDUCED SALES CHARGES
AND SALES CHARGE EXCEPTIONS

You may qualify for reduced sales charges or sales charge exceptions. To qualify
for these reductions or exceptions, you or your financial consultant must
provide sufficient information at the time of purchase to verify that your
purchase qualifies for such treatment.

REDUCED SALES CHARGES

You may be eligible to buy Class A shares at reduced initial sales charge rates
under Rights of Accumulation or Letters of Intent under certain circumstances.

Rights of Accumulation

You may combine your new purchases of Class A shares with Class A shares
currently owned 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 current
value of all Class A shares you own.

Letters of Intent

Under a Letter of Intent (LOI), you commit to purchase a specified dollar amount
of Class A shares of AIM Funds during a 13-month period. The amount you agree to
purchase determines the initial sales charge you pay. If the full face amount of
the LOI is not invested by the end of the 13-month period, your account will be
adjusted to the higher initial sales charge level for the amount actually
invested.

INITIAL SALES CHARGE EXCEPTIONS

You will not pay initial sales charges

- on shares purchased by reinvesting dividends and distributions;

- when exchanging shares among certain AIM Funds;

- when using the reinstatement privilege; and

- when a merger, consolidation, or acquisition of assets of an AIM Fund occurs.

CONTINGENT DEFERRED SALES CHARGE (CDSC) EXCEPTIONS

You will not pay a CDSC

- if you redeem Class B shares you held for more than six years;

- if you redeem Class C shares you held for more than one year;

- if you redeem shares acquired through reinvestment of dividends and
  distributions; and

- on increases in the net asset value of your shares.

There may be other situations when you may be able to purchase or redeem shares
at reduced or without sales charges. Consult the fund's Statement of Additional
Information for details.

MCF--06/00                            A-2

<PAGE>   12
                                --------------
                                 THE AIM FUNDS
                                --------------

PURCHASING SHARES

MINIMUM INVESTMENTS PER AIM FUND ACCOUNT

The minimum investments for AIM Fund accounts (except for investments in AIM Mid
Cap Opportunities Fund and AIM Small Cap Opportunities Fund) are as follows:

<TABLE>
<CAPTION>
                                                                  INITIAL                      ADDITIONAL
TYPE OF ACCOUNT                                                 INVESTMENTS                    INVESTMENTS
-----------------------------------------------------------------------------------------------------------
<S>                                              <C>                                         <C>
Savings Plans (money-purchase/profit sharing     $  0 ($25 per AIM Fund investment for               $25
plans, 401(k) plans, Simplified Employee Pension      salary deferrals from Savings Plans)
(SEP) accounts, Salary Reduction (SARSEP)
accounts, Savings Incentive Match Plans for
Employee IRA (Simple IRA) accounts, 403(b) or
457 plans)
Automatic Investment Plans                         50                                                 50
IRA, Education IRA or Roth IRA                    250                                                 50
All other accounts                                500                                                 50
----------------------------------------------------------------------------------------------------------
</TABLE>

HOW TO PURCHASE SHARES

You may purchase shares using one of the options below.

<TABLE>
<CAPTION>
PURCHASE OPTIONS
---------------------------------------------------------------------------------------------------------

                                OPENING AN ACCOUNT                     ADDING TO AN ACCOUNT
---------------------------------------------------------------------------------------------------------
<S>                             <C>                                    <C>
Through a Financial Consultant  Contact your financial consultant.     Same

By Mail                         Mail completed account application     Mail your check and the remittance
                                and purchase payment to the            slip from your confirmation
                                transfer agent,                        statement to the transfer agent.
                                A I M Fund Services, Inc.,
                                P.O. Box 4739,
                                Houston, TX 77210-4739.

By Wire                         Mail completed account application     Call the transfer agent to receive
                                to the transfer agent. Call the        a reference number. Then, use the
                                transfer agent at (800) 959-4246 to    wire instructions at left.
                                receive a reference number. Then,
                                use the following wire
                                instructions:
                                Beneficiary Bank ABA/Routing #:
                                113000609
                                Beneficiary Account Number:
                                00100366807
                                Beneficiary Account Name: A I M
                                Fund Services, Inc.
                                RFB: Fund Name, Reference #
                                OBI: Your Name, Account #

By AIM Bank Connection(SM)      Open your account using one of the     Mail completed AIM Bank Connection
                                methods described above.               form to the transfer agent. Once
                                                                       the transfer agent has received the
                                                                       form, call the transfer agent to
                                                                       place your purchase order.

By AIM Internet Connect(SM)     Open your account using one of the     Select the AIM Internet Connect
                                methods described above.               option on your completed account
                                                                       application or complete an AIM
                                                                       Internet Connect Authorization
                                                                       Form. Mail the application or form
                                                                       to the transfer agent. Once your
                                                                       request for this option has been
                                                                       processed (which may take up to 10
                                                                       days), you may place your purchase
                                                                       order at www.aimfunds.com. The
                                                                       maximum purchase amount per
                                                                       transaction is $100,000. You may
                                                                       not purchase shares in AIM
                                                                       prototype retirement accounts on
                                                                       the internet.
----------------------------------------------------------------------------------------------------------
</TABLE>

                                      A-3                            MCF--06/00

<PAGE>   13
                                 -------------
                                 THE AIM FUNDS
                                 -------------

SPECIAL PLANS

AUTOMATIC INVESTMENT PLAN

You can arrange for periodic investments in any of the AIM Funds by authorizing
the AIM Fund to withdraw the amount of your investment from your bank account on
a day or dates you specify and in an amount of at least $50. You may stop the
Automatic Investment Plan at any time by giving the transfer agent notice ten
days prior to your next scheduled withdrawal.

DOLLAR COST AVERAGING

Dollar Cost Averaging allows you to make automatic monthly or quarterly
exchanges, if permitted, from one AIM Fund account to one or more other AIM Fund
accounts with the identical registration. The account from which exchanges are
to be made must have a minimum balance of $5,000 before you can use this option.
Exchanges will occur on (or about) the 10th or 25th day of the month, whichever
you specify, in the amount you specify. The minimum amount you can exchange to
another AIM Fund is $50.

AUTOMATIC DIVIDEND INVESTMENT

All of your dividends and distributions may be paid in cash or invested in any
AIM Fund at net asset value. Unless you specify otherwise, your dividends and
distributions will automatically be reinvested in the same AIM Fund. You may
invest your dividends and distributions (1) into another AIM Fund in the same
class of shares; or (2) from Class A shares into AIM Cash Reserve Shares of AIM
Money Market Fund, or vice versa.

  You must comply with the following requirements to be eligible to invest your
dividends and distributions in shares of another AIM Fund:

(1) Your account balance (a) in the AIM Fund paying the dividend must be at
    least $5,000; or (b) in the AIM Fund receiving the dividend must be at least
    $500;

(2) Both accounts must have identical registration information; and

(3) You must have completed an authorization form to reinvest dividends into
    another AIM Fund.

PORTFOLIO REBALANCING PROGRAM

If you have at least $5,000 in your account, you may participate in the
Portfolio Rebalancing Program. Under this Program, you can designate how the
total value of your AIM Fund holdings should be rebalanced, on a percentage
basis, between two and ten of your AIM Funds on a quarterly, semiannual or
annual basis. Your portfolio will be rebalanced through the exchange of shares
in one or more of your AIM Funds for shares of the same class of one or more
other AIM Funds in your portfolio. If you wish to participate in the Program,
make changes or cancel the Program, the transfer agent must receive your request
to participate, changes, or cancellation in good order at least five business
days prior to the next rebalancing date, which is normally the 28th day of the
last month of the period you choose. You may realize taxable gains from these
exchanges. We may modify, suspend or terminate the Program at any time on 60
days' prior written notice.

RETIREMENT PLANS

Shares of most of the AIM Funds can be purchased through tax-sheltered
retirement plans made available to corporations, individuals and employees of
non-profit organizations and public schools. A plan document must be adopted
to establish a retirement plan. You may use AIM Funds-sponsored retirement
plans, which include IRAs, Education IRAs, Roth IRAs, 403(b) plans, 401(k)
plans, SIMPLE IRA plans, SEP/SARSEP plans and Money Purchase/Profit Sharing
plans, or another sponsor's retirement plan. The plan custodian of the
AIM Funds-sponsored retirement plan assesses an annual maintenance fee of $10.
Contact your financial consultant for details.

REDEEMING SHARES

REDEMPTION FEES

Generally, we will not charge you any fees to redeem your shares. However, if
you acquired Class A shares of AIM Developing Markets Fund in connection with
the reorganization of AIM Eastern Europe Fund, you will be charged a redemption
fee of 2% of the net asset value of those shares, which will be paid to AIM
Developing Markets Fund, if you redeem your shares within the first year after
the reorganization. Your broker or financial consultant may charge service fees
for handling redemption transactions. Your shares also may be subject to a
contingent deferred sales charge (CDSC).

REDEMPTION OF AIM CASH RESERVE SHARES OF
AIM MONEY MARKET FUND ACQUIRED BY EXCHANGE

If you redeem AIM Cash Reserve Shares acquired by exchange from Class A shares
subject to a CDSC within 18 months of the purchase of the Class A shares, you
will be charged a CDSC.

REDEMPTION OF CLASS B SHARES OR CLASS C
SHARES ACQUIRED BY EXCHANGE FROM AIM CASH
RESERVE SHARES OF AIM MONEY MARKET FUND

We will begin the holding period for purposes of calculating the CDSC on Class B
shares or Class C shares acquired by exchange from AIM Cash Reserve Shares of
AIM Money Market Fund at the time of the exchange into Class B shares or Class C
shares.

REDEMPTION OF CLASS B SHARES ACQUIRED BY
EXCHANGE FROM AIM FLOATING RATE FUND

If you redeem Class B shares you acquired by exchange via a tender offer by AIM
Floating Rate Fund, the early withdrawal charge applicable to shares of AIM
Floating Rate Fund will be applied instead of the CDSC normally applicable to
Class B shares.

MCF--06/00                            A-4

<PAGE>   14
                                 -------------
                                 THE AIM FUNDS
                                 -------------

HOW TO REDEEM SHARES
--------------------------------------------------------------------------------

<TABLE>
<S>                     <C>
Through a Financial     Contact your financial consultant.
Consultant

By Mail                 Send a written request to the transfer agent. Requests must
                        include (1) original signatures of all registered owners;
                        (2) the name of the AIM Fund and your account number; (3) if
                        the transfer agent does not hold your shares, endorsed share
                        certificates or share certificates accompanied by an
                        executed stock power; and (4) signature guarantees, if
                        necessary (see below). The transfer agent may require that
                        you provide additional information, such as corporate
                        resolutions or powers of attorney, if applicable. If you are
                        redeeming from an IRA account, you must include a statement
                        of whether or not you are at least 59 1/2 years old and
                        whether you wish to have federal income tax withheld from
                        your proceeds. The transfer agent may require certain other
                        information before you can redeem from an employer-sponsored
                        retirement plan. Contact your employer for details.

By Telephone            Call the transfer agent. You will be allowed to redeem by
                        telephone if (1) the proceeds are to be mailed to the
                        address on record (if there has been no change communicated
                        to us within the last 30 days) or transferred electronically
                        to a pre-authorized checking account; (2) you do not hold
                        physical share certificates; (3) you can provide proper
                        identification information; (4) the proceeds of the
                        redemption do not exceed $50,000; and (5) you have not
                        previously declined the telephone redemption privilege.
                        Certain accounts, including retirement accounts and 403(b)
                        plans, may not be redeemed by telephone. The transfer agent
                        must receive your call during the hours of the customary
                        trading session of the New York Stock Exchange (NYSE) in
                        order to effect the redemption at that day's closing price.

By AIM Internet
Connect                 Place your redemption request at www.aimfunds.com. You will
                        be allowed to redeem by internet if (1) you do not hold
                        physical share certificates; (2) you can provide proper
                        identification information; (3) the proceeds of the
                        redemption do not exceed $50,000; and (4) you have
                        established the internet trading option. AIM prototype
                        retirement accounts may not be redeemed on the internet.
                        The transfer agent must confirm your transaction during the
                        hours of the customary trading session of the NYSE in order
                        to effect the redemption at that day's closing price.
</TABLE>
-------------------------------------------------------------------------------

TIMING AND METHOD OF PAYMENT

We normally will send out checks within one business day, and in any event no
more than seven days, after we accept your request to redeem. If you redeem
shares recently purchased by check, you will be required to wait up to ten
business days before we will send your redemption proceeds. This delay is
necessary to ensure that the purchase check has cleared.

REDEMPTION BY MAIL

If you mail us a request in good order to redeem your shares, we will mail you a
check in the amount of the redemption proceeds to the address on record with us.
If your request is not in good order, you may have to provide us with additional
documentation in order to redeem your shares.

REDEMPTION BY TELEPHONE

If you redeem by telephone, we will mail you a check in the amount of the
redemption proceeds to your address of record (if there has been no change
communicated to the transfer agent within the previous 30 days) or transmit them
electronically to your pre-authorized bank account. We use reasonable procedures
to confirm that instructions communicated by telephone are genuine and are not
liable for telephone instructions that are reasonably believed to be genuine.

REDEMPTION BY INTERNET

If you redeem by internet, we will transmit your redemption proceeds
electronically to your pre-authorized bank account. We use reasonable procedures
to confirm that instructions communicated by internet are genuine and are not
liable for internet instructions that are reasonably believed to be genuine.

PAYMENT FOR SYSTEMATIC WITHDRAWALS

You may arrange for regular monthly or quarterly withdrawals from your account
of at least $50. You also may make annual withdrawals if you own Class A shares.
We will redeem enough shares from your account to cover the amount withdrawn.
You must have an account balance of at least $5,000 to establish a Systematic
Withdrawal Plan. You can stop this plan at any time by giving ten days prior
notice to the transfer agent.

EXPEDITED REDEMPTIONS

(AIM Cash Reserve Shares of AIM Money Market Fund only)

If we receive your redemption order before 11:30 a.m. Eastern Time, we will try
to transmit payment of redemption proceeds on that same day. If we receive your
redemption order after 11:30 a.m. Eastern Time and before the close of the
customary trading session of the NYSE, we generally will transmit payment on the
next business day.

                                      A-5                            MCF--06/00

<PAGE>   15
                                --------------
                                 THE AIM FUNDS
                                --------------

REDEMPTIONS BY CHECK

(Class A shares of AIM Tax-Exempt Cash Fund and AIM Cash Reserve Shares of AIM
Money Market Fund only)

You may redeem shares of these AIM Funds by writing checks in amounts of $250 or
more if you have completed an authorization form. Redemption by check is not
available for retirement accounts.

SIGNATURE GUARANTEES

We require a signature guarantee when you redeem by mail and

(1) the amount is greater than $50,000;

(2) you request that payment be made to someone other than the name registered
    on the account;

(3) you request that payment be sent somewhere other than the bank of record on
    the account; or

(4) you request that payment be sent to a new address or an address that changed
    in the last 30 days.

The transfer agent will accept a guarantee of your signature by a number of
financial institutions. Call the transfer agent for additional information. Some
institutions have transaction amount maximums for these guarantees. Please check
with the guarantor institution.

REINSTATEMENT PRIVILEGE (Class A shares only)

You may, within 90 days after you sell Class A shares (except Class A shares of
AIM Tax-Exempt Cash Fund), reinvest all or part of your redemption proceeds in
Class A shares of any AIM Fund at net asset value in an identically registered
account. If you sold Class A shares of AIM Limited Maturity Treasury Fund or AIM
Tax-Free Intermediate Fund, you will incur an initial sales charge reflecting
the difference between the initial sales charges on those Funds and the ones in
which you will be investing. In addition, if you paid a contingent deferred
sales charge (CDSC) on any reinstated amount, you will not be subject to a CDSC
if you later redeem that amount. You must notify the transfer agent in writing
at the time you reinstate that you are exercising your reinstatement privilege.
You may exercise this privilege only once per year.

REDEMPTIONS BY THE AIM FUNDS

If your account has been open at least one year, you have not made an additional
purchase in the account during the past six calendar months, and the value of
your account falls below $500 for three consecutive months due to redemptions or
exchanges (excluding retirement accounts), the AIM Funds have the right to
redeem the account after giving you 60 days' prior written notice. You may avoid
having your account redeemed during the notice period by bringing the account
value up to $500 or by utilizing the Automatic Investment Plan.
  If an AIM Fund determines that you have not provided a correct Social Security
or other tax ID number on your account application, the AIM Fund may, at its
discretion, redeem the account and distribute the proceeds to you.

EXCHANGING SHARES

You may, under certain circumstances, exchange shares in one AIM Fund for those
of another AIM Fund. Before requesting an exchange, review the prospectus of the
AIM Fund you wish to acquire. Exchange privileges also apply to holders of the
Connecticut General Guaranteed Account, established for tax-qualified group
annuities, for contracts purchased on or before June 30, 1992.

PERMITTED EXCHANGES

Except as otherwise stated below, you may exchange your shares for shares of the
same class of another AIM Fund. You may exchange AIM Cash Reserve Shares of AIM
Money Market Fund for Class A shares of another AIM Fund, or vice versa. You
also may exchange AIM Cash Reserve Shares of AIM Money Market Fund for Class B
shares or Class C shares of another AIM Fund, but only if the AIM Cash Reserve
Shares were purchased directly and not acquired by exchange. You may be required
to pay an initial sales charge when exchanging from a Fund with a lower initial
sales charge than the one into which you are exchanging. If you exchange from
Class A shares not subject to a CDSC into Class A shares subject to those
charges, you will be charged a CDSC when you redeem the exchanged shares. The
CDSC charged on redemption of those shares will be calculated starting on the
date you acquired those shares through exchange.


YOU WILL NOT PAY A SALES CHARGE WHEN EXCHANGING:


(1) Class A shares with an initial sales charge (except for Class A shares of
    AIM Limited Maturity Treasury Fund and AIM Tax-Free Intermediate Fund) for
    Class A shares of another AIM Fund or AIM Cash Reserve Shares of AIM Money
    Market Fund;

(2) Class A shares of AIM Limited Maturity Treasury Fund and AIM Tax-Free
    Intermediate Fund for

    (a) one another;

    (b) AIM Cash Reserve Shares of AIM Money Market Fund or Class A shares of
        AIM Tax-Exempt Cash Fund; or

    (c) Class A shares of another AIM Fund, but only if

       (i)  you acquired the original shares before May 1, 1994; or

       (ii) you acquired the original shares on or after May 1, 1994 by way of
            an exchange from shares with higher sales charges;

(3) AIM Cash Reserve Shares of AIM Money Market Fund or Class A shares of AIM
    Tax-Exempt Cash Fund for

    (a) one another;

    (b) Class A shares of an AIM Fund subject to an initial sales charge (except
        for Class A shares of AIM Limited Maturity Treasury Fund and AIM
        Tax-Free Intermediate Fund), but only if you acquired the original
        shares

       (i)  prior to May 1, 1994 by exchange from Class A shares subject to an
            initial sales charge;

MCF--06/00                            A-6

<PAGE>   16
                                --------------
                                 THE AIM FUNDS
                                --------------

       (ii) on or after May 1, 1994 by exchange from Class A shares subject to
            an initial sales charge (except for Class A shares of AIM Limited
            Maturity Treasury Fund and AIM Tax-Free Intermediate Fund); or

    (c) Class A shares of AIM Limited Maturity Treasury Fund and AIM Tax-Free
        Intermediate Fund, but only if you acquired the original shares by
        exchange from Class A shares subject to an initial sales charge; or

(4) Class B shares for other Class B shares, and Class C shares for other Class
    C shares.

(5) AIM Cash Reserve Shares of AIM Money Market Fund for Class B shares and
    Class C shares.

EXCHANGES NOT PERMITTED

You may not exchange Class A shares subject to contingent deferred sales charges
for Class A shares of AIM Limited Maturity Treasury Fund, AIM Tax-Free
Intermediate Fund or AIM Tax-Exempt Cash Fund.

EXCHANGE CONDITIONS

The following conditions apply to all exchanges:

- You must meet the minimum purchase requirements for the AIM Fund into which
  you are exchanging;

- Shares of the AIM Fund you wish to acquire must be available for sale in your
  state of residence;

- Exchanges must be made between accounts with identical registration
  information;

- The account you wish to exchange from must have a certified tax identification
  number (or the Fund has received an appropriate Form W-8 or W-9);

- Shares must have been held for at least one day prior to the exchange;

- If you have physical share certificates, you must return them to the transfer
  agent prior to the exchange; and

- You are limited to a maximum of 10 exchanges per calendar year, because
  excessive short-term trading or market-timing activity can hurt fund
  performance. If you exceed that limit, or if an AIM Fund or the distributor
  determines, in its sole discretion, that your short-term trading is excessive
  or that you are engaging in market-timing activity, it may reject any
  additional exchange orders. An exchange is the movement out of (redemption)
  one AIM Fund and into (purchase) another AIM Fund.

TERMS OF EXCHANGE

Under unusual market conditions, an AIM Fund may delay the purchase of shares
being acquired in an exchange for up to five business days if it determines that
it would be materially disadvantaged by the immediate transfer of exchange
proceeds. There is no fee for exchanges. The exchange privilege is not an option
or right to purchase shares. Any of the participating AIM Funds or the
distributor may modify or discontinue this privilege at any time.

BY MAIL

If you wish to make an exchange by mail, you must include original signatures of
each registered owner exactly as the shares are registered, the account
registration and account number, the dollar amount or number of shares to be
exchanged and the names of the AIM Funds from which and into which the exchange
is to be made.

BY TELEPHONE

Conditions that apply to exchanges by telephone are the same as redemptions by
telephone, including that the transfer agent must receive exchange requests
during the hours of the customary trading session of the NYSE; however, you
still will be allowed to exchange by telephone even if you have changed your
address of record within the preceding 30 days.

BY INTERNET

You will be allowed to exchange by internet if (1) you do not hold physical
share certificates; (2) you can provide proper identification information; and
(3) you have established the internet trading option.

EXCHANGING CLASS B AND CLASS C SHARES

If you make an exchange involving Class B or Class C shares, the amount of time
you held the original shares will be added to the holding period of the Class B
or Class C shares, respectively, into which you exchanged for the purpose of
calculating contingent deferred sales charges (CDSC) if you later redeem the
exchanged shares. If you redeem Class B shares acquired by exchange via a tender
offer by AIM Floating Rate Fund, you will be credited with the time period you
held the shares of AIM Floating Rate Fund for the purpose of computing the early
withdrawal charge applicable to those shares.




-------------------------------------------------------------------------------
 EACH AIM FUND AND ITS AGENTS RESERVE THE RIGHT AT ANY TIME TO:

 - REJECT OR CANCEL ANY PART OF ANY PURCHASE OR EXCHANGE ORDER;

 - MODIFY ANY TERMS OR CONDITIONS OF PURCHASE OF SHARES OF ANY AIM FUND;

 - REJECT OR CANCEL ANY REQUEST TO ESTABLISH THE AUTOMATIC INVESTMENT PLAN AND
   SYSTEMATIC WITHDRAWAL PLAN OPTIONS ON THE SAME ACCOUNT; OR

 - WITHDRAW ALL OR ANY PART OF THE OFFERING MADE BY THIS PROSPECTUS.
 ------------------------------------------------------------------------------

                                     A-7                             MCF--06/00

<PAGE>   17
                                --------------
                                 THE AIM FUNDS
                                --------------

PRICING OF SHARES

DETERMINATION OF NET ASSET VALUE

The price of each AIM Fund's shares is the fund's net asset value per share. The
AIM Funds value portfolio securities for which market quotations are readily
available at market value. The AIM Funds value short-term investments maturing
within 60 days at amortized cost, which approximates market value. AIM Money
Market Fund and AIM Tax-Exempt Cash Fund value all of their securities at
amortized cost. AIM High Income Municipal Fund, AIM Municipal Bond Fund, AIM
Tax-Exempt Bond Fund of Connecticut and AIM Tax-Free Intermediate Fund value
variable rate securities that have an unconditional demand or put feature
exercisable within seven days or less at par, which reflects the market value of
such securities.

  The AIM Funds value all other securities and assets at their fair value.
Securities and other assets quoted in foreign currencies are valued in U.S.
dollars based on the prevailing exchange rates on that day. In addition, if,
between the time trading ends on a particular security and the close of the
customary trading session of the NYSE, events occur that materially affect the
value of the security, the AIM Funds may value the security at its fair value as
determined in good faith by or under the supervision of the Board of Directors
or Trustees of the AIM Fund. The effect of using fair value pricing is that an
AIM Fund's net asset value will be subject to the judgment of the Board of
Directors or Trustees or its designee instead of being determined by the market.
Because some of the AIM Funds may invest in securities that are primarily listed
on foreign exchanges that trade on days when the AIM Funds do not price their
shares, the value of those funds' assets may change on days when you will not
be able to purchase or redeem fund shares.

  Each AIM Fund determines the net asset value of its shares on each day the
NYSE is open for business, as of the close of the customary trading session, or
any earlier NYSE closing time that day. AIM Money Market Fund also determines
its net asset value as of 12:00 noon Eastern Time on each day the NYSE is open
for business.

TIMING OF ORDERS

You can purchase, exchange or redeem shares during the hours of the customary
trading session of the NYSE. The AIM Funds price purchase, exchange and
redemption orders at the net asset value calculated after the transfer agent
receives an order in good form. An AIM Fund may postpone the right of redemption
only under unusual circumstances, as allowed by the Securities and Exchange
Commission, such as when the NYSE restricts or suspends trading.

TAXES

In general, dividends and distributions you receive are taxable as ordinary
income or long-term capital gains for federal income tax purposes, whether you
reinvest them in additional shares or take them in cash. Distributions are
generally taxable to you at different rates depending on the length of time
the fund holds its assets. Different tax rates may apply to ordinary income
and long-term capital gain distributions, regardless of how long you have held
your shares. Every year, you will be sent information showing the amount of
dividends and distributions you received from each AIM Fund during the prior
year.

  Any long-term or short-term capital gains realized from redemptions of AIM
Fund shares will be subject to federal income tax. Exchanges of shares for
shares of another AIM Fund are treated as a sale, and any gain realized on the
transaction will generally be subject to federal income tax.

  INVESTORS IN TAX-EXEMPT FUNDS SHOULD READ THE INFORMATION UNDER THE HEADING
"OTHER INFORMATION -- SPECIAL TAX INFORMATION REGARDING THE FUND" IN THEIR
PROSPECTUS.

  The foreign, state and local tax consequences of investing in AIM Fund shares
may differ materially from the federal income tax consequences described above.
You should consult your tax advisor before investing.

MCF--06/00                            A-8

<PAGE>   18
                         ------------------------------
                         AIM GLOBAL INFRASTRUCTURE FUND
                         ------------------------------

OBTAINING ADDITIONAL INFORMATION
--------------------------------------------------------------------------------

More information may be obtained free of charge upon request. The Statement of
Additional Information (SAI), a current version of which is on file with the
Securities and Exchange Commission (SEC), contains more details about the fund
and is incorporated by reference into the prospectus (is legally a part of this
prospectus). Annual and semiannual reports to shareholders contain additional
information about the fund's investments. The fund's annual report also
discusses the market conditions and investment strategies that significantly
affected the fund's performance during its last fiscal year.

  If you have questions about this fund, another fund in The AIM Family of Funds
--Registered Trademark-- or your account, or wish to obtain free copies of the
fund's current SAI or annual or semiannual reports, please contact us
--------------------------------------------------------------------------------

<TABLE>
<S>                          <C>
BY MAIL:                     A I M Fund Services, Inc.
                             P.O. Box 4739
                             Houston, TX 77210-4739

BY TELEPHONE:                (800) 347-4246

BY E-MAIL:                   [email protected]

ON THE INTERNET:             http://www.aimfunds.com
                             (prospectuses and annual
                             and semiannual reports only)
</TABLE>

---------------------------------------------------------

You also can review and obtain copies of the fund's SAI, reports and other
information at the SEC's Public Reference Room in Washington, DC; on the EDGAR
database on the SEC's Internet website (http://www.sec.gov); or, after paying a
duplication fee, by sending a letter to the SEC's Public Reference Section,
Washington, DC 20549-0102 or by sending an electronic mail request to
[email protected]. Please call the SEC at 1-202-942-8090 for information about
the Public Reference Room.

-----------------------------------
AIM Global Infrastructure Fund
SEC 1940 Act file number: 811-05426
-----------------------------------


[AIM LOGO APPEARS HERE]   www.aimfunds.com   GIF-PRO-1    INVEST WITH DISCIPLINE
--Registered Trademark--                                --Registered Trademark--
<PAGE>   19
      AIM GLOBAL
      FINANCIAL SERVICES FUND
     --------------------------------------------------------------------------

      AIM Global Financial Services Fund seeks to provide long-term growth of
      capital.

       PROSPECTUS                                  AIM --Registered Trademark--
       FEBRUARY 28, 2000,
       AS REVISED
       SEPTEMBER 11, 2000

                                     This prospectus contains important
                                     information about the Class A, B and C
                                     shares of the fund. Please read it
                                     before investing and keep it for
                                     future reference.

                                     As with all other mutual fund
                                     securities, the Securities and
                                     Exchange Commission 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:
                                        - is not FDIC insured;
                                        - may lose value; and
                                        - is not guaranteed by a bank.

[AIM LOGO APPEARS HERE]                                  INVEST WITH DISCIPLINE
--Registered Trademark--                                --Registered Trademark--
<PAGE>   20
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

TABLE OF CONTENTS
--------------------------------------------------------------------------------

<TABLE>
<S>                                      <C>
INVESTMENT OBJECTIVE AND STRATEGIES          1
- - - - - - - - - - - - - - - - - - - - - - - -

PRINCIPAL RISKS OF INVESTING IN THE FUND     1
- - - - - - - - - - - - - - - - - - - - - - - -

PERFORMANCE INFORMATION                      3
- - - - - - - - - - - - - - - - - - - - - - - -

Annual Total Returns                         3

Performance Table                            3

FEE TABLE AND EXPENSE EXAMPLE                4
- - - - - - - - - - - - - - - - - - - - - - - -

Fee Table                                    4

Expense Example                              4

FUND MANAGEMENT                              5
- - - - - - - - - - - - - - - - - - - - - - - -

The Advisor                                  5

Advisor Compensation                         5

Portfolio Managers                           5

OTHER INFORMATION                            5
- - - - - - - - - - - - - - - - - - - - - - - -

Sales Charges                                5

Dividends and Distributions                  5

FINANCIAL HIGHLIGHTS                         6
- - - - - - - - - - - - - - - - - - - - - - - -

SHAREHOLDER INFORMATION                    A-1
- - - - - - - - - - - - - - - - - - - - - - - -

Choosing a Share Class                     A-1

Purchasing Shares                          A-3

Redeeming Shares                           A-4

Exchanging Shares                          A-6

Pricing of Shares                          A-8

Taxes                                      A-8

OBTAINING ADDITIONAL INFORMATION    Back Cover
- - - - - - - - - - - - - - - - - - - - - - - -
</TABLE>

The AIM Family of Funds, The AIM Family of Funds and Design (i.e., the AIM
logo), AIM and Design, AIM, AIM Funds, AIM Funds and Design, AIM Investor, AIM
LINK, AIM Institutional Funds, aimfunds.com, La Familia AIM de Fondos, La
Familia AIM de Fondos and Design, Invierta con DISCIPLINA and Invest with
DISCIPLINE are registered service marks and AIM Bank Connection and AIM Internet
Connect are service marks of A I M Management Group Inc.

No dealer, salesperson or any other person has been authorized to give any
information or to make any representations other than those contained in this
prospectus, and you should not rely on such other information or
representations.
<PAGE>   21
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

INVESTMENT OBJECTIVE AND STRATEGIES
--------------------------------------------------------------------------------

The fund's investment objective is long-term growth of capital. The investment
objective of the fund may be changed by the Board of Trustees without
shareholder approval.

  The fund seeks to meet this objective by investing, normally, at least 65% of
its total assets in equity securities of domestic and foreign financial services
companies. The fund considers a "financial services" company to be one that (1)
derives at least 50% of its revenues or earnings from financial services
activities; or (2) devotes at least 50% of its assets to such activities, based
on its most recent fiscal year. Such companies include those that provide
financial services (such as commercial banks, insurance brokerages, securities
brokerages, investment banks, leasing companies, and real estate-related
companies).

  The fund may invest up to 35% of its assets in debt securities of domestic and
foreign financial services companies and/or in equity and debt securities of
companies outside the financial services industry, which, in the opinion of the
portfolio managers, stand to benefit from developments in the financial services
industries. The fund will normally invest in securities of issuers in at least
three countries, including the United States, and may invest a significant
portion of its assets in the securities of U.S. issuers. However, the fund will
invest no more than 40% of its total assets in securities of issuers in any one
country, other than the U.S.

  The portfolio managers allocate the fund's assets among securities of
countries and in currency denominations that are expected to provide the best
opportunities for meeting the fund's investment objective. In analyzing specific
companies for possible investment, the portfolio managers ordinarily look for
several of the following characteristics: above-average per share earnings
growth; high return on invested capital; a healthy balance sheet; sound
financial and accounting policies and overall financial strength; strong
competitive advantages; effective research and product development and
marketing; development of new technologies; efficient service; pricing
flexibility; strong management; and general operating characteristics that will
enable the companies to compete successfully in their respective markets. The
portfolio managers consider whether to sell a particular security when any of
those factors materially changes.

  In anticipation of or in response to adverse market conditions, for cash
management purposes or for defensive purposes, the fund may temporarily hold all
or a portion of its assets in cash (U.S. dollars, foreign currencies or
multinational currency units), money market instruments, shares of affiliated
money market funds, or high-quality debt securities. As a result, the fund may
not achieve its investment objective.

  The fund may engage in active and frequent trading of portfolio securities to
achieve its investment objective. If the fund does trade in this way, it may
incur increased transaction costs, which can lower the actual return on your
investment. Active trading may also increase short-term gains and losses, which
may affect the taxes you have to pay.

PRINCIPAL RISKS OF INVESTING IN THE FUND
--------------------------------------------------------------------------------

There is a risk that you could lose all or a portion of your investment in the
fund. The value of your investment in the fund will go up and down with the
prices of securities in which the fund invests. The prices of equity securities
change in response to many factors, including the historical and prospective
earnings of the issuer, the value of its assets, general economic conditions,
interest rates, investor perceptions, and market liquidity.

  The value of the fund's shares is particularly vulnerable to factors affecting
the financial services industry, such as government regulation, rapid business
changes, significant competition, and value fluctuations. Such factors may limit
the financial commitments that financial services companies can make, including
amounts and types of loans, and interest rates they can charge. Because the fund
focuses its investments in the financial services industries, the value of your
fund shares may rise and fall more than the value of shares of a fund that
invests more broadly.

  The prices of foreign securities may be further affected by other factors,
including:

- Currency exchange rates--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.

- Political and economic conditions--The value of the fund's foreign investments
  may be adversely affected by political and social instability in their home
  countries and by changes in economic or taxation policies in those countries.






                                        1
<PAGE>   22
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

- Regulations--Foreign companies generally are subject to less stringent
  regulations, including financial and accounting controls, than are U.S.
  companies. As a result, there generally is less publicly available information
  about foreign companies than about U.S. companies.

- Markets--The securities markets of other countries are smaller than U.S.
  securities markets. As a result, many foreign securities may be less liquid
  and more volatile than U.S. securities.

  The fund may participate in the initial public offering (IPO) market. Because
of the fund's small asset base, any investment the fund may make in IPOs may
significantly increase the fund's total returns. As the fund's assets grow, the
impact of IPO investments will decline, which may reduce the fund's total
return.

  An investment in the fund is not a deposit of a bank and is not insured or
guaranteed by the Federal Deposit Insurance Corporation or any other government
agency.

                                        2
<PAGE>   23
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

PERFORMANCE INFORMATION
--------------------------------------------------------------------------------

The bar chart and table shown below provide an indication of the risks of
investing in the fund. The fund's past performance is not necessarily an
indication of its future performance.

ANNUAL TOTAL RETURNS
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The following bar chart shows changes in the performance of the fund's Class A
shares from year to year. The bar chart does not reflect sales loads. If it did,
the annual total returns shown would be lower.

                                    [GRAPH]

<TABLE>
<CAPTION>
                                                                   ANNUAL
YEAR ENDED                                                         TOTAL
DECEMBER 31                                                        RETURNS
-----------                                                        -------
<S>                                                                 <C>
1995 .............................................................  19.06%
1996 .............................................................  15.21%
1997 .............................................................  30.32%
1998 .............................................................  13.13%
1999 .............................................................  24.24%
</TABLE>

  During the periods shown in the bar chart, the highest quarterly return was
24.04% (quarter ended December 31, 1998) and the lowest quarterly return was
-21.49% (quarter ended September 30, 1998).

PERFORMANCE TABLE

The following performance table compares the fund's performance to that of a
broad-based securities market index. The fund's performance reflects payment of
sales loads.

<TABLE>
<CAPTION>
AVERAGE ANNUAL TOTAL RETURNS
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(for the periods ended                                         SINCE     INCEPTION
December 31, 1999)                        1 YEAR   5 YEARS   INCEPTION     DATE
-----------------------------------------------------------------------------------
<S>                                       <C>      <C>       <C>         <C>
Class A                                   18.33%    19.07%     15.90%    05/31/94
Class B                                   18.67     19.47      16.25     05/31/94
Class C                                      --        --         --     03/01/99
MSCI AC World Index(1)                    27.31     18.90      17.10(2)  05/31/94(2)
-----------------------------------------------------------------------------------
</TABLE>

(1) The Morgan Stanley Capital International All Country World Index measures
    the performance of securities listed on the major world stock exchanges of
    47 markets, including both developed and emerging markets.

(2) The average annual total return given is since the inception date of the
    class with the longest performance history.

                                        3
<PAGE>   24
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

FEE TABLE AND EXPENSE EXAMPLE
--------------------------------------------------------------------------------

FEE TABLE

This table describes the fees and expenses that you may pay if you buy and hold
shares of the fund:

<TABLE>
<CAPTION>
SHAREHOLDER FEES
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
(fees paid directly from
your investment)        CLASS A   CLASS B   CLASS C
-------------------------------------------------------
<S>                     <C>       <C>       <C>
Maximum Sales Charge (Load)
Imposed on Purchases
(as a percentage of
offering price)          4.75%     None      None

Maximum Deferred
Sales Charge (Load)
(as a percentage of
original purchase
price or redemption
proceeds, whichever
is less)                 None(1)   5.00%     1.00%
-------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
ANNUAL FUND OPERATING EXPENSES
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
(expenses that are deducted
from fund assets)       CLASS A   CLASS B   CLASS C
-------------------------------------------------------
<S>                     <C>       <C>       <C>
Management Fees           0.98%     0.98%     0.98%

Distribution and/or
Service (12b-1) Fees      0.50      1.00      1.00

Other Expenses            0.63      0.63      0.63

Total Annual Fund

Operating Expenses        2.11      2.61      2.61

Fee Waiver(2)             0.12      0.12      0.12

Net Expenses              1.99      2.49      2.49
-------------------------------------------------------
</TABLE>

(1) If you buy $1,000,000 or more of Class A shares and redeem these shares
    within 18 months from the date of purchase, you may pay a 1% contingent
    deferred sales charge (CDSC) at the time of redemption.
(2) The investment advisor has contractually agreed to limit Total Annual Fund
    Operating Expenses (excluding interest, taxes, dividends on short sales,
    extraordinary items and increases in expenses due to expense offset
    arrangements, if any) on Class A, Class B and Class C shares to 2.00%,
    2.50% and 2.50%, respectively.

You may also be charged a transaction or other fee by the financial institution
managing your account.

  As a result of 12b-1 fees, long-term shareholders in the fund may pay more
than the maximum permitted initial sales charge.

EXPENSE EXAMPLE

This example is intended to help you compare the costs of investing in different
classes of the fund with the cost of investing in other mutual funds.

  The example assumes that you invest $10,000 in the fund for the time periods
indicated and then redeem all of your shares at the end of those periods. The
example also assumes that your investment has a 5% return each year and that the
fund's operating expenses remain the same. To the extent fees are waived or
expenses reimbursed, the expenses will be lower. Although your actual returns
and costs may be higher or lower, based on these assumptions your costs would
be:

<TABLE>
<CAPTION>
         1 YEAR   3 YEARS   5 YEARS   10 YEARS
----------------------------------------------
<S>      <C>      <C>       <C>       <C>
Class A   $680    $1,107    $1,560     $2,810
Class B    765     1,114     1,590      2,833
Class C    365       814     1,390      2,954
----------------------------------------------
</TABLE>

You would pay the following expenses if you did not redeem your shares:

<TABLE>
<CAPTION>
         1 YEAR   3 YEARS   5 YEARS   10 YEARS
----------------------------------------------
<S>      <C>      <C>       <C>       <C>
Class A   $680    $1,107    $1,560     $2,810
Class B    265       814     1,390      2,833
Class C    265       814     1,390      2,954
----------------------------------------------

</TABLE>

                                        4
<PAGE>   25
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

FUND MANAGEMENT
--------------------------------------------------------------------------------

THE ADVISOR

A I M Advisors, Inc. (the advisor) serves as the investment advisor. The advisor
is located at 11 Greenway Plaza, Suite 100, Houston, Texas 77046-1173. The
advisor supervises all aspects of the fund's operations and provides investment
advisory services to the fund, including obtaining and evaluating economic,
statistical and financial information to formulate and implement investment
programs for the fund.

  The advisor has acted as an investment advisor since its organization in 1976.
Today, the advisor, together with its subsidiaries, advises or manages over 120
investment portfolios, including the fund, encompassing a broad range of
investment objectives.

ADVISOR COMPENSATION

During the fiscal year ended October 31, 1999, the advisor received compensation
of 0.85% of average daily net assets.

PORTFOLIO MANAGERS

The advisor uses a team approach to investment management. The individual
members of the team who are primarily responsible for the day-to-day management
of the fund's portfolio, all of whom are officers of A I M Capital Management,
Inc., a wholly owned subsidiary of the advisor, are

- Clas G. Olsson, Senior Portfolio Manager, who has been responsible for the
  fund since 2000 and has been associated with the advisor and/or its affiliates
  since 1994.

- Christopher P. Perras, Portfolio Manager, who has been responsible for the
  fund since 1999 and has been associated with the advisor and/or its affiliates
  since 1999. From 1997 to 1999, he was an equity analyst at Van Wagoner Capital
  Management. From 1995 to 1997, he was Associate Portfolio Manager for Van
  Kampen American Capital Asset Management, Inc.

- Robert A. Shelton, Portfolio Manager, who has been responsible for the fund
  since 1999 and has been associated with the advisor and/or its affiliates
  since 1995. From 1991 to 1995, he was a financial analyst for CS First Boston.

- Barrett K. Sides, Portfolio Manager, who has been responsible for the fund
  since 1999 and has been associated with the advisor and/or its affiliates
  since 1990.

- Meggan M. Walsh, Portfolio Manager, who has been responsible for the fund
  since 2000 and has been associated with the advisor and/or its affiliates
  since 1991.

OTHER INFORMATION
--------------------------------------------------------------------------------

SALES CHARGES

Purchases of Class A shares of AIM Global Financial Services Fund are subject to
the maximum 4.75% initial sales charge as listed under the heading "CATEGORY II
Initial Sales Charges" in the "Shareholder Information--Choosing a Share Class"
section of this prospectus. Purchases of Class B and Class C shares are subject
to the contingent deferred sales charges listed in that section.

DIVIDENDS AND DISTRIBUTIONS

The fund expects that its distributions, if any, will consist primarily of
capital gains.

DIVIDENDS

The fund generally declares and pays dividends, if any, annually.

CAPITAL GAINS DISTRIBUTIONS

The fund generally distributes long-term and short-term capital gains, if any,
annually.

                                        5
<PAGE>   26
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

FINANCIAL HIGHLIGHTS
--------------------------------------------------------------------------------

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.

  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.

<TABLE>
<CAPTION>
                                                                      CLASS A
                                                  -----------------------------------------------
                                                              YEAR ENDED OCTOBER 31,
                                                  1999(a)   1998(a)   1997(a)   1996(a)   1995(a)
-------------------------------------------------------------------------------------------------
<S>                                               <C>       <C>       <C>       <C>       <C>
Net asset value, beginning of period              $17.05    $17.22    $14.20    $11.92    $11.62
Income from investment operations:
  Net investment income (loss)                     (0.02)     0.07      0.04      0.05(b)   0.17(c)
  Net realized and unrealized gain on
    investments                                     6.25      0.37      3.97      2.36      0.13
    Net increase from investment operations         6.23      0.44      4.01      2.41      0.30
Distributions to shareholders:
  From net investment income                       (0.02)    (0.01)       --     (0.12)       --
  From net realized gain on investments            (0.03)    (0.60)    (0.99)    (0.01)       --
    Total distributions                            (0.05)    (0.61)    (0.99)    (0.13)       --
Net asset value, end of period                    $23.23    $17.05    $17.22    $14.20    $11.92
Total return(d)                                    36.62%     2.53%    29.91%    20.21%     2.58%
-------------------------------------------------------------------------------------------------
Ratios and supplemental data:
-------------------------------------------------------------------------------------------------
Net assets, end of period (in 000s)              $30,987   $28,433   $29,639    $7,302    $5,687
Ratio of net investment income (loss) to average
  net assets:
  With fee waivers                                 (0.08)%(e) 0.37%     0.23%     0.41%     1.46%
  Without fee waivers                              (0.21)%(e) 0.35%     0.16%    (0.66)%   (5.34)%
Ratio of expenses to average net assets:
  With fee waivers                                  1.99%(e)  1.97%     2.29%     2.32%     2.34%
  Without fee waivers                               2.12%(e)  1.99%     2.36%     3.39%     9.14%
Portfolio turnover rate                              107%      111%       91%      103%      170%
-------------------------------------------------------------------------------------------------
</TABLE>

(a)These selected per share data were calculated based upon the average shares
   outstanding during the period.

(b)Before reimbursement the net investment income per share would have been
   reduced by $0.13.

(c)Before reimbursement the net investment income per share would have been
   reduced by $0.59.

(d)Total return does not include sales charge.

(e)Ratios are based on average net assets of $30,233,569.

                                        6
<PAGE>   27
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

FINANCIAL HIGHLIGHTS (CONTINUED)
--------------------------------------------------------------------------------

<TABLE>
<CAPTION>
                                                                      CLASS B
                                                  ------------------------------------------------
                                                               YEAR ENDED OCTOBER 31,
                                                               ----------------------
                                                   1999(a)      1998(a)   1997(a)   1996(a)   1995(a)
----------------------------------------------------------------------------------------------------
<S>                                               <C>        <C>       <C>       <C>       <C>
Net asset value, beginning of period              $ 16.71      $16.97    $14.06    $11.83    $11.60
Income from investment operations:
  Net investment income (loss)                      (0.12)      (0.02)    (0.04)    (0.01)(b)  0.11(c)
  Net realized and unrealized gain on
    investments                                      6.11        0.37      3.94      2.34      0.12
    Net Increase from investment operations          5.99        0.35      3.90      2.33      0.23
Distributions to shareholders:
  From net investment income                           --       (0.01)       --     (0.09)       --
  From net realized gain on investments             (0.03)      (0.60)    (0.99)    (0.01)       --
    Total distributions                             (0.03)      (0.61)    (0.99)    (0.10)       --
Net asset value, end of period                    $ 22.67      $16.71    $16.97    $14.06    $11.83
Total return(d)                                     35.91%       2.08%    29.13%    19.81%     1.98%
----------------------------------------------------------------------------------------------------
Ratios and supplemental data:
----------------------------------------------------------------------------------------------------
Net assets, end of period (in 000s)               $49,619     $48,785   $47,585    $9,886    $4,548
Ratio of net investment income (loss) to average
  net assets:
  With fee waivers                                  (0.58)%(e)  (0.13)%   (0.27)%   (0.09)%    0.96%
  Without fee waivers                               (0.71)%(e)  (0.15)%   (0.34)%   (1.16)%   (5.84)%
Ratio of expenses to average net assets:
  With fee waivers                                   2.49%(e)    2.47%     2.79%     2.82%     2.84%
  Without fee waivers                                2.62%(e)    2.49%     2.86%     3.89%     9.64%
Portfolio turnover rate                               107%        111%       91%      103%      170%
----------------------------------------------------------------------------------------------------
</TABLE>

(a)These selected per share data were calculated based upon average shares
   outstanding during the period.
(b)Before reimbursement the net investment income per share would have been
   reduced by $0.13.
(c)Before reimbursement the net investment income per share would have been
   reduced by $0.59.
(d)Total return does not include sales charges.
(e)Ratios are based on average net assets of $49,539,408.

<TABLE>
<CAPTION>
                                                                   CLASS C
                                                              -----------------
                                                              MARCH 1, 1999 TO
                                                                 OCTOBER 31,
                                                                   1999(a)
-------------------------------------------------------------------------------
<S>                                                           <C>
Net asset value, beginning of period                               $19.58
Income from investment operations:
  Net investment income (loss)                                      (0.08)
  Net realized and unrealized gain on investments                    3.17
    Net increase from investment operations                          3.09
Distributions to shareholders:
  From net investment income                                           --
  From net realized gain on investments                                --
    Total distributions                                                --
Net asset value, end of period                                     $22.67
Total return(b)                                                     15.78%
-------------------------------------------------------------------------------
Ratios and supplemental data:
-------------------------------------------------------------------------------
Net assets, end of period (in 000s)                                $  605
Ratio of net investment income (loss) to average net assets:
  With fee waivers                                                  (0.58)%(c)
  Without fee waivers                                               (0.71)%(c)
Ratio of expenses to average net assets:
  With fee waivers                                                   2.49%(c)
  Without fee waivers                                                2.62%(c)
Portfolio turnover rate                                               107%
-------------------------------------------------------------------------------
</TABLE>

(a)These selected per share data were calculated based upon average shares
   outstanding during the period.
(b)Total return does not include sales charges and is not annualized for periods
   less than one year.
(c)Ratios are annualized and based on average net assets of $251,286.

                                        7
<PAGE>   28
                                 -------------
                                 THE AIM FUNDS
                                 -------------

SHAREHOLDER INFORMATION
--------------------------------------------------------------------------------

In addition to the fund, A I M Advisors, Inc. serves as investment advisor to
many other mutual funds (the AIM Funds). The following information is about all
the AIM Funds.

CHOOSING A SHARE CLASS

Many of the AIM Funds have multiple classes of shares, each class representing
an interest in the same portfolio of investments. When choosing a share class,
you should consider the factors below:

<TABLE>
<CAPTION>
CLASS A                              CLASS B                              CLASS C
---------------------------------------------------------------------------------------------------------
<S>                                  <C>                                  <C>
- Initial sales charge               - No initial sales charge            - No initial sales charge
- Reduced or waived initial sales    - Contingent deferred sales          - Contingent deferred sales
  charge for certain purchases         charge on redemptions within         charge on redemptions within
                                       six years                            one year

- Lower distribution and service     - 12b-1 fee of 1.00%                 - 12b-1 fee of 1.00%
  (12b-1) fee than Class B or
  Class C shares (See "Fee Table
  and Expense Example")

                                     - Converts to Class A shares         - Does not convert to Class A
                                       eight years after the end of         shares
                                       the month in which shares
                                       were purchased along with a
                                       pro rata portion of its
                                       reinvested dividends and
                                       distributions(1)

- Generally more appropriate for     - Purchase orders limited to         - Generally more appropriate
  long-term investors                  amounts less than $250,000           for short-term investors
</TABLE>

      (1) AIM Money Market Fund: Class B shares convert to AIM Cash Reserve
          Shares.
          AIM Global Trends Fund: If you held Class B shares on May 29, 1998 and
          continue to hold them, those shares will convert to Class A shares of
          that fund seven years after the end of the month in which shares were
          purchased. If you exchange those shares for Class B shares of another
          AIM Fund, the shares into which you exchanged will not convert to
          Class A shares until eight years after the end of the month in which
          you purchased your original shares.
--------------------------------------------------------------------------------

DISTRIBUTION AND SERVICE (12B-1) FEES

Each AIM Fund (except AIM Tax-Free Intermediate Fund) has adopted 12b-1 plans
that allow the AIM Fund to pay distribution fees to A I M Distributors, Inc.
(the distributor) for the sale and distribution of its shares and fees for
services provided to shareholders, all or a substantial portion of which are
paid to the dealer of record. Because the AIM Fund pays these fees out of its
assets on an ongoing basis, over time these fees will increase the cost of your
investment and may cost you more than paying other types of sales charges.

SALES CHARGES

Generally, you will not pay a sales charge on purchases or redemptions of Class
A shares of AIM Tax-Exempt Cash Fund and AIM Cash Reserve Shares of AIM Money
Market Fund. You may be charged a contingent deferred sales charge if you redeem
AIM Cash Reserve Shares of AIM Money Market Fund acquired through certain
exchanges. Sales charges on all other AIM Funds and classes of those Funds are
detailed below. As used below, the term "offering price" with respect to all
categories of Class A shares includes the initial sales charge.

INITIAL SALES CHARGES

The AIM Funds are grouped into three categories with respect to initial sales
charges. The "Other Information" section of your prospectus will tell you in
what category your particular AIM Fund is classified.

<TABLE>
<CAPTION>
CATEGORY I INITIAL SALES CHARGES
------------------------------------------------------------
                                          INVESTOR'S
                                         SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $   25,000      5.50%          5.82%
$ 25,000 but less than $   50,000      5.25           5.54
$ 50,000 but less than $  100,000      4.75           4.99
$100,000 but less than $  250,000      3.75           3.90
$250,000 but less than $  500,000      3.00           3.09
$500,000 but less than $1,000,000      2.00           2.04
-------------------------------------------------------------
</TABLE>

                                      A-1                            MCF--06/00

<PAGE>   29
                                 -------------
                                 THE AIM FUNDS
                                 -------------

<TABLE>
<CAPTION>
CATEGORY II INITIAL SALES CHARGES
------------------------------------------------------------
                                           INVESTOR'S
                                          SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $   50,000      4.75%          4.99%
$ 50,000 but less than $  100,000      4.00           4.17
$100,000 but less than $  250,000      3.75           3.90
$250,000 but less than $  500,000      2.50           2.56
$500,000 but less than $1,000,000      2.00           2.04
-------------------------------------------------------------
</TABLE>

<TABLE>
<CAPTION>
CATEGORY III INITIAL SALES CHARGES
-------------------------------------------------------------
                                          INVESTOR'S
                                         SALES CHARGE
                                 ----------------------------
AMOUNT OF INVESTMENT               AS A % OF       AS A % OF
IN SINGLE TRANSACTION            OFFERING PRICE   INVESTMENT
-------------------------------------------------------------
<S>                              <C>           <C>
             Less than $  100,000      1.00%          1.01%
$100,000 but less than $  250,000      0.75           0.76
$250,000 but less than $1,000,000      0.50           0.50
-------------------------------------------------------------
</TABLE>

CONTINGENT DEFERRED SALES CHARGES FOR CLASS A SHARES

You can purchase $1,000,000 or more of Class A shares at net asset value.
However, if you purchase shares of that amount in Categories I or II, they will
be subject to a contingent deferred sales charge (CDSC) of 1% if you redeem them
prior to 18 months after the date of purchase. The distributor may pay a dealer
concession and/or a service fee for purchases of $1,000,000 or more.

CONTINGENT DEFERRED SALES CHARGES FOR
CLASS B AND CLASS C SHARES

You can purchase Class B and Class C shares at their net asset value per share.
However, when you redeem them, they are subject to a CDSC in the following
percentages:

<TABLE>
<CAPTION>
     YEAR SINCE
    PURCHASE MADE          CLASS B            CLASS C
----------------------------------------------------------
<S>                   <C>                <C>
First                         5%                1%
Second                        4                None
Third                         3                None
Fourth                        3                None
Fifth                         2                None
Sixth                         1                None
Seventh and following       None               None
----------------------------------------------------------
</TABLE>

COMPUTING A CDSC

The CDSC on redemptions of shares is computed based on the lower of their
original purchase price or current market value, net of reinvested dividends and
capital gains distributions. In determining whether to charge a CDSC, we will
assume that you have redeemed shares on which there is no CDSC first and, then,
shares in the order of purchase.

REDUCED SALES CHARGES
AND SALES CHARGE EXCEPTIONS

You may qualify for reduced sales charges or sales charge exceptions. To qualify
for these reductions or exceptions, you or your financial consultant must
provide sufficient information at the time of purchase to verify that your
purchase qualifies for such treatment.

REDUCED SALES CHARGES

You may be eligible to buy Class A shares at reduced initial sales charge rates
under Rights of Accumulation or Letters of Intent under certain circumstances.

Rights of Accumulation

You may combine your new purchases of Class A shares with Class A shares
currently owned 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 current
value of all Class A shares you own.

Letters of Intent

Under a Letter of Intent (LOI), you commit to purchase a specified dollar amount
of Class A shares of AIM Funds during a 13-month period. The amount you agree to
purchase determines the initial sales charge you pay. If the full face amount of
the LOI is not invested by the end of the 13-month period, your account will be
adjusted to the higher initial sales charge level for the amount actually
invested.

INITIAL SALES CHARGE EXCEPTIONS

You will not pay initial sales charges

- on shares purchased by reinvesting dividends and distributions;

- when exchanging shares among certain AIM Funds;

- when using the reinstatement privilege; and

- when a merger, consolidation, or acquisition of assets of an AIM Fund occurs.

CONTINGENT DEFERRED SALES CHARGE (CDSC) EXCEPTIONS

You will not pay a CDSC

- if you redeem Class B shares you held for more than six years;

- if you redeem Class C shares you held for more than one year;

- if you redeem shares acquired through reinvestment of dividends and
  distributions; and

- on increases in the net asset value of your shares.

There may be other situations when you may be able to purchase or redeem shares
at reduced or without sales charges. Consult the fund's Statement of Additional
Information for details.

MCF--06/00                            A-2

<PAGE>   30
                                --------------
                                 THE AIM FUNDS
                                --------------

PURCHASING SHARES

MINIMUM INVESTMENTS PER AIM FUND ACCOUNT

The minimum investments for AIM Fund accounts (except for investments in AIM Mid
Cap Opportunities Fund and AIM Small Cap Opportunities Fund) are as follows:

<TABLE>
<CAPTION>
                                                                  INITIAL                      ADDITIONAL
TYPE OF ACCOUNT                                                 INVESTMENTS                    INVESTMENTS
-----------------------------------------------------------------------------------------------------------
<S>                                              <C>                                         <C>
Savings Plans (money-purchase/profit sharing     $  0 ($25 per AIM Fund investment for               $25
plans, 401(k) plans, Simplified Employee Pension      salary deferrals from Savings Plans)
(SEP) accounts, Salary Reduction (SARSEP)
accounts, Savings Incentive Match Plans for
Employee IRA (Simple IRA) accounts, 403(b) or
457 plans)
Automatic Investment Plans                         50                                                 50
IRA, Education IRA or Roth IRA                    250                                                 50
All other accounts                                500                                                 50
----------------------------------------------------------------------------------------------------------
</TABLE>

HOW TO PURCHASE SHARES

You may purchase shares using one of the options below.

<TABLE>
<CAPTION>
PURCHASE OPTIONS
---------------------------------------------------------------------------------------------------------

                                OPENING AN ACCOUNT                     ADDING TO AN ACCOUNT
---------------------------------------------------------------------------------------------------------
<S>                             <C>                                    <C>
Through a Financial Consultant  Contact your financial consultant.     Same

By Mail                         Mail completed account application     Mail your check and the remittance
                                and purchase payment to the            slip from your confirmation
                                transfer agent,                        statement to the transfer agent.
                                A I M Fund Services, Inc.,
                                P.O. Box 4739,
                                Houston, TX 77210-4739.

By Wire                         Mail completed account application     Call the transfer agent to receive
                                to the transfer agent. Call the        a reference number. Then, use the
                                transfer agent at (800) 959-4246 to    wire instructions at left.
                                receive a reference number. Then,
                                use the following wire
                                instructions:
                                Beneficiary Bank ABA/Routing #:
                                113000609
                                Beneficiary Account Number:
                                00100366807
                                Beneficiary Account Name: A I M
                                Fund Services, Inc.
                                RFB: Fund Name, Reference #
                                OBI: Your Name, Account #

By AIM Bank Connection(SM)      Open your account using one of the     Mail completed AIM Bank Connection
                                methods described above.               form to the transfer agent. Once
                                                                       the transfer agent has received the
                                                                       form, call the transfer agent to
                                                                       place your purchase order.

By AIM Internet Connect(SM)     Open your account using one of the     Select the AIM Internet Connect
                                methods described above.               option on your completed account
                                                                       application or complete an AIM
                                                                       Internet Connect Authorization
                                                                       Form. Mail the application or form
                                                                       to the transfer agent. Once your
                                                                       request for this option has been
                                                                       processed (which may take up to 10
                                                                       days), you may place your purchase
                                                                       order at www.aimfunds.com. The
                                                                       maximum purchase amount per
                                                                       transaction is $100,000. You may
                                                                       not purchase shares in AIM
                                                                       prototype retirement accounts on
                                                                       the internet.
----------------------------------------------------------------------------------------------------------
</TABLE>

                                      A-3                            MCF--06/00

<PAGE>   31
                                 -------------
                                 THE AIM FUNDS
                                 -------------

SPECIAL PLANS

AUTOMATIC INVESTMENT PLAN

You can arrange for periodic investments in any of the AIM Funds by authorizing
the AIM Fund to withdraw the amount of your investment from your bank account on
a day or dates you specify and in an amount of at least $50. You may stop the
Automatic Investment Plan at any time by giving the transfer agent notice ten
days prior to your next scheduled withdrawal.

DOLLAR COST AVERAGING

Dollar Cost Averaging allows you to make automatic monthly or quarterly
exchanges, if permitted, from one AIM Fund account to one or more other AIM Fund
accounts with the identical registration. The account from which exchanges are
to be made must have a minimum balance of $5,000 before you can use this option.
Exchanges will occur on (or about) the 10th or 25th day of the month, whichever
you specify, in the amount you specify. The minimum amount you can exchange to
another AIM Fund is $50.

AUTOMATIC DIVIDEND INVESTMENT

All of your dividends and distributions may be paid in cash or invested in any
AIM Fund at net asset value. Unless you specify otherwise, your dividends and
distributions will automatically be reinvested in the same AIM Fund. You may
invest your dividends and distributions (1) into another AIM Fund in the same
class of shares; or (2) from Class A shares into AIM Cash Reserve Shares of AIM
Money Market Fund, or vice versa.

  You must comply with the following requirements to be eligible to invest your
dividends and distributions in shares of another AIM Fund:

(1) Your account balance (a) in the AIM Fund paying the dividend must be at
    least $5,000; or (b) in the AIM Fund receiving the dividend must be at least
    $500;

(2) Both accounts must have identical registration information; and

(3) You must have completed an authorization form to reinvest dividends into
    another AIM Fund.

PORTFOLIO REBALANCING PROGRAM

If you have at least $5,000 in your account, you may participate in the
Portfolio Rebalancing Program. Under this Program, you can designate how the
total value of your AIM Fund holdings should be rebalanced, on a percentage
basis, between two and ten of your AIM Funds on a quarterly, semiannual or
annual basis. Your portfolio will be rebalanced through the exchange of shares
in one or more of your AIM Funds for shares of the same class of one or more
other AIM Funds in your portfolio. If you wish to participate in the Program,
make changes or cancel the Program, the transfer agent must receive your request
to participate, changes, or cancellation in good order at least five business
days prior to the next rebalancing date, which is normally the 28th day of the
last month of the period you choose. You may realize taxable gains from these
exchanges. We may modify, suspend or terminate the Program at any time on 60
days' prior written notice.

RETIREMENT PLANS

Shares of most of the AIM Funds can be purchased through tax-sheltered
retirement plans made available to corporations, individuals and employees of
non-profit organizations and public schools. A plan document must be adopted
to establish a retirement plan. You may use AIM Funds-sponsored retirement
plans, which include IRAs, Education IRAs, Roth IRAs, 403(b) plans, 401(k)
plans, SIMPLE IRA plans, SEP/SARSEP plans and Money Purchase/Profit Sharing
plans, or another sponsor's retirement plan. The plan custodian of the
AIM Funds-sponsored retirement plan assesses an annual maintenance fee of $10.
Contact your financial consultant for details.

REDEEMING SHARES

REDEMPTION FEES

Generally, we will not charge you any fees to redeem your shares. However, if
you acquired Class A shares of AIM Developing Markets Fund in connection with
the reorganization of AIM Eastern Europe Fund, you will be charged a redemption
fee of 2% of the net asset value of those shares, which will be paid to AIM
Developing Markets Fund, if you redeem your shares within the first year after
the reorganization. Your broker or financial consultant may charge service fees
for handling redemption transactions. Your shares also may be subject to a
contingent deferred sales charge (CDSC).

REDEMPTION OF AIM CASH RESERVE SHARES OF
AIM MONEY MARKET FUND ACQUIRED BY EXCHANGE

If you redeem AIM Cash Reserve Shares acquired by exchange from Class A shares
subject to a CDSC within 18 months of the purchase of the Class A shares, you
will be charged a CDSC.

REDEMPTION OF CLASS B SHARES OR CLASS C
SHARES ACQUIRED BY EXCHANGE FROM AIM CASH
RESERVE SHARES OF AIM MONEY MARKET FUND

We will begin the holding period for purposes of calculating the CDSC on Class B
shares or Class C shares acquired by exchange from AIM Cash Reserve Shares of
AIM Money Market Fund at the time of the exchange into Class B shares or Class C
shares.

REDEMPTION OF CLASS B SHARES ACQUIRED BY
EXCHANGE FROM AIM FLOATING RATE FUND

If you redeem Class B shares you acquired by exchange via a tender offer by AIM
Floating Rate Fund, the early withdrawal charge applicable to shares of AIM
Floating Rate Fund will be applied instead of the CDSC normally applicable to
Class B shares.

MCF--06/00                            A-4

<PAGE>   32
                                 -------------
                                 THE AIM FUNDS
                                 -------------

HOW TO REDEEM SHARES
--------------------------------------------------------------------------------

<TABLE>
<S>                     <C>
Through a Financial     Contact your financial consultant.
Consultant

By Mail                 Send a written request to the transfer agent. Requests must
                        include (1) original signatures of all registered owners;
                        (2) the name of the AIM Fund and your account number; (3) if
                        the transfer agent does not hold your shares, endorsed share
                        certificates or share certificates accompanied by an
                        executed stock power; and (4) signature guarantees, if
                        necessary (see below). The transfer agent may require that
                        you provide additional information, such as corporate
                        resolutions or powers of attorney, if applicable. If you are
                        redeeming from an IRA account, you must include a statement
                        of whether or not you are at least 59 1/2 years old and
                        whether you wish to have federal income tax withheld from
                        your proceeds. The transfer agent may require certain other
                        information before you can redeem from an employer-sponsored
                        retirement plan. Contact your employer for details.

By Telephone            Call the transfer agent. You will be allowed to redeem by
                        telephone if (1) the proceeds are to be mailed to the
                        address on record (if there has been no change communicated
                        to us within the last 30 days) or transferred electronically
                        to a pre-authorized checking account; (2) you do not hold
                        physical share certificates; (3) you can provide proper
                        identification information; (4) the proceeds of the
                        redemption do not exceed $50,000; and (5) you have not
                        previously declined the telephone redemption privilege.
                        Certain accounts, including retirement accounts and 403(b)
                        plans, may not be redeemed by telephone. The transfer agent
                        must receive your call during the hours of the customary
                        trading session of the New York Stock Exchange (NYSE) in
                        order to effect the redemption at that day's closing price.

By AIM Internet
Connect                 Place your redemption request at www.aimfunds.com. You will
                        be allowed to redeem by internet if (1) you do not hold
                        physical share certificates; (2) you can provide proper
                        identification information; (3) the proceeds of the
                        redemption do not exceed $50,000; and (4) you have
                        established the internet trading option. AIM prototype
                        retirement accounts may not be redeemed on the internet.
                        The transfer agent must confirm your transaction during the
                        hours of the customary trading session of the NYSE in order
                        to effect the redemption at that day's closing price.
</TABLE>
-------------------------------------------------------------------------------

TIMING AND METHOD OF PAYMENT

We normally will send out checks within one business day, and in any event no
more than seven days, after we accept your request to redeem. If you redeem
shares recently purchased by check, you will be required to wait up to ten
business days before we will send your redemption proceeds. This delay is
necessary to ensure that the purchase check has cleared.

REDEMPTION BY MAIL

If you mail us a request in good order to redeem your shares, we will mail you a
check in the amount of the redemption proceeds to the address on record with us.
If your request is not in good order, you may have to provide us with additional
documentation in order to redeem your shares.

REDEMPTION BY TELEPHONE

If you redeem by telephone, we will mail you a check in the amount of the
redemption proceeds to your address of record (if there has been no change
communicated to the transfer agent within the previous 30 days) or transmit them
electronically to your pre-authorized bank account. We use reasonable procedures
to confirm that instructions communicated by telephone are genuine and are not
liable for telephone instructions that are reasonably believed to be genuine.

REDEMPTION BY INTERNET

If you redeem by internet, we will transmit your redemption proceeds
electronically to your pre-authorized bank account. We use reasonable procedures
to confirm that instructions communicated by internet are genuine and are not
liable for internet instructions that are reasonably believed to be genuine.

PAYMENT FOR SYSTEMATIC WITHDRAWALS

You may arrange for regular monthly or quarterly withdrawals from your account
of at least $50. You also may make annual withdrawals if you own Class A shares.
We will redeem enough shares from your account to cover the amount withdrawn.
You must have an account balance of at least $5,000 to establish a Systematic
Withdrawal Plan. You can stop this plan at any time by giving ten days prior
notice to the transfer agent.

EXPEDITED REDEMPTIONS

(AIM Cash Reserve Shares of AIM Money Market Fund only)

If we receive your redemption order before 11:30 a.m. Eastern Time, we will try
to transmit payment of redemption proceeds on that same day. If we receive your
redemption order after 11:30 a.m. Eastern Time and before the close of the
customary trading session of the NYSE, we generally will transmit payment on the
next business day.

                                      A-5                            MCF--06/00

<PAGE>   33
                                --------------
                                 THE AIM FUNDS
                                --------------

REDEMPTIONS BY CHECK

(Class A shares of AIM Tax-Exempt Cash Fund and AIM Cash Reserve Shares of AIM
Money Market Fund only)

You may redeem shares of these AIM Funds by writing checks in amounts of $250 or
more if you have completed an authorization form. Redemption by check is not
available for retirement accounts.

SIGNATURE GUARANTEES

We require a signature guarantee when you redeem by mail and

(1) the amount is greater than $50,000;

(2) you request that payment be made to someone other than the name registered
    on the account;

(3) you request that payment be sent somewhere other than the bank of record on
    the account; or

(4) you request that payment be sent to a new address or an address that changed
    in the last 30 days.

The transfer agent will accept a guarantee of your signature by a number of
financial institutions. Call the transfer agent for additional information. Some
institutions have transaction amount maximums for these guarantees. Please check
with the guarantor institution.

REINSTATEMENT PRIVILEGE (Class A shares only)

You may, within 90 days after you sell Class A shares (except Class A shares of
AIM Tax-Exempt Cash Fund), reinvest all or part of your redemption proceeds in
Class A shares of any AIM Fund at net asset value in an identically registered
account. If you sold Class A shares of AIM Limited Maturity Treasury Fund or AIM
Tax-Free Intermediate Fund, you will incur an initial sales charge reflecting
the difference between the initial sales charges on those Funds and the ones in
which you will be investing. In addition, if you paid a contingent deferred
sales charge (CDSC) on any reinstated amount, you will not be subject to a CDSC
if you later redeem that amount. You must notify the transfer agent in writing
at the time you reinstate that you are exercising your reinstatement privilege.
You may exercise this privilege only once per year.

REDEMPTIONS BY THE AIM FUNDS

If your account has been open at least one year, you have not made an additional
purchase in the account during the past six calendar months, and the value of
your account falls below $500 for three consecutive months due to redemptions or
exchanges (excluding retirement accounts), the AIM Funds have the right to
redeem the account after giving you 60 days' prior written notice. You may avoid
having your account redeemed during the notice period by bringing the account
value up to $500 or by utilizing the Automatic Investment Plan.
  If an AIM Fund determines that you have not provided a correct Social Security
or other tax ID number on your account application, the AIM Fund may, at its
discretion, redeem the account and distribute the proceeds to you.

EXCHANGING SHARES

You may, under certain circumstances, exchange shares in one AIM Fund for those
of another AIM Fund. Before requesting an exchange, review the prospectus of the
AIM Fund you wish to acquire. Exchange privileges also apply to holders of the
Connecticut General Guaranteed Account, established for tax-qualified group
annuities, for contracts purchased on or before June 30, 1992.

PERMITTED EXCHANGES

Except as otherwise stated below, you may exchange your shares for shares of the
same class of another AIM Fund. You may exchange AIM Cash Reserve Shares of AIM
Money Market Fund for Class A shares of another AIM Fund, or vice versa. You
also may exchange AIM Cash Reserve Shares of AIM Money Market Fund for Class B
shares or Class C shares of another AIM Fund, but only if the AIM Cash Reserve
Shares were purchased directly and not acquired by exchange. You may be required
to pay an initial sales charge when exchanging from a Fund with a lower initial
sales charge than the one into which you are exchanging. If you exchange from
Class A shares not subject to a CDSC into Class A shares subject to those
charges, you will be charged a CDSC when you redeem the exchanged shares. The
CDSC charged on redemption of those shares will be calculated starting on the
date you acquired those shares through exchange.


YOU WILL NOT PAY A SALES CHARGE WHEN EXCHANGING:


(1) Class A shares with an initial sales charge (except for Class A shares of
    AIM Limited Maturity Treasury Fund and AIM Tax-Free Intermediate Fund) for
    Class A shares of another AIM Fund or AIM Cash Reserve Shares of AIM Money
    Market Fund;

(2) Class A shares of AIM Limited Maturity Treasury Fund and AIM Tax-Free
    Intermediate Fund for

    (a) one another;

    (b) AIM Cash Reserve Shares of AIM Money Market Fund or Class A shares of
        AIM Tax-Exempt Cash Fund; or

    (c) Class A shares of another AIM Fund, but only if

       (i)  you acquired the original shares before May 1, 1994; or

       (ii) you acquired the original shares on or after May 1, 1994 by way of
            an exchange from shares with higher sales charges;

(3) AIM Cash Reserve Shares of AIM Money Market Fund or Class A shares of AIM
    Tax-Exempt Cash Fund for

    (a) one another;

    (b) Class A shares of an AIM Fund subject to an initial sales charge (except
        for Class A shares of AIM Limited Maturity Treasury Fund and AIM
        Tax-Free Intermediate Fund), but only if you acquired the original
        shares

       (i)  prior to May 1, 1994 by exchange from Class A shares subject to an
            initial sales charge;

MCF--06/00                            A-6

<PAGE>   34
                                --------------
                                 THE AIM FUNDS
                                --------------

       (ii) on or after May 1, 1994 by exchange from Class A shares subject to
            an initial sales charge (except for Class A shares of AIM Limited
            Maturity Treasury Fund and AIM Tax-Free Intermediate Fund); or

    (c) Class A shares of AIM Limited Maturity Treasury Fund and AIM Tax-Free
        Intermediate Fund, but only if you acquired the original shares by
        exchange from Class A shares subject to an initial sales charge; or

(4) Class B shares for other Class B shares, and Class C shares for other Class
    C shares.

(5) AIM Cash Reserve Shares of AIM Money Market Fund for Class B shares and
    Class C shares.

EXCHANGES NOT PERMITTED

You may not exchange Class A shares subject to contingent deferred sales charges
for Class A shares of AIM Limited Maturity Treasury Fund, AIM Tax-Free
Intermediate Fund or AIM Tax-Exempt Cash Fund.

EXCHANGE CONDITIONS

The following conditions apply to all exchanges:

- You must meet the minimum purchase requirements for the AIM Fund into which
  you are exchanging;

- Shares of the AIM Fund you wish to acquire must be available for sale in your
  state of residence;

- Exchanges must be made between accounts with identical registration
  information;

- The account you wish to exchange from must have a certified tax identification
  number (or the Fund has received an appropriate Form W-8 or W-9);

- Shares must have been held for at least one day prior to the exchange;

- If you have physical share certificates, you must return them to the transfer
  agent prior to the exchange; and

- You are limited to a maximum of 10 exchanges per calendar year, because
  excessive short-term trading or market-timing activity can hurt fund
  performance. If you exceed that limit, or if an AIM Fund or the distributor
  determines, in its sole discretion, that your short-term trading is excessive
  or that you are engaging in market-timing activity, it may reject any
  additional exchange orders. An exchange is the movement out of (redemption)
  one AIM Fund and into (purchase) another AIM Fund.

TERMS OF EXCHANGE

Under unusual market conditions, an AIM Fund may delay the purchase of shares
being acquired in an exchange for up to five business days if it determines that
it would be materially disadvantaged by the immediate transfer of exchange
proceeds. There is no fee for exchanges. The exchange privilege is not an option
or right to purchase shares. Any of the participating AIM Funds or the
distributor may modify or discontinue this privilege at any time.

BY MAIL

If you wish to make an exchange by mail, you must include original signatures of
each registered owner exactly as the shares are registered, the account
registration and account number, the dollar amount or number of shares to be
exchanged and the names of the AIM Funds from which and into which the exchange
is to be made.

BY TELEPHONE

Conditions that apply to exchanges by telephone are the same as redemptions by
telephone, including that the transfer agent must receive exchange requests
during the hours of the customary trading session of the NYSE; however, you
still will be allowed to exchange by telephone even if you have changed your
address of record within the preceding 30 days.

BY INTERNET

You will be allowed to exchange by internet if (1) you do not hold physical
share certificates; (2) you can provide proper identification information; and
(3) you have established the internet trading option.

EXCHANGING CLASS B AND CLASS C SHARES

If you make an exchange involving Class B or Class C shares, the amount of time
you held the original shares will be added to the holding period of the Class B
or Class C shares, respectively, into which you exchanged for the purpose of
calculating contingent deferred sales charges (CDSC) if you later redeem the
exchanged shares. If you redeem Class B shares acquired by exchange via a tender
offer by AIM Floating Rate Fund, you will be credited with the time period you
held the shares of AIM Floating Rate Fund for the purpose of computing the early
withdrawal charge applicable to those shares.




-------------------------------------------------------------------------------
 EACH AIM FUND AND ITS AGENTS RESERVE THE RIGHT AT ANY TIME TO:

 - REJECT OR CANCEL ANY PART OF ANY PURCHASE OR EXCHANGE ORDER;

 - MODIFY ANY TERMS OR CONDITIONS OF PURCHASE OF SHARES OF ANY AIM FUND;

 - REJECT OR CANCEL ANY REQUEST TO ESTABLISH THE AUTOMATIC INVESTMENT PLAN AND
   SYSTEMATIC WITHDRAWAL PLAN OPTIONS ON THE SAME ACCOUNT; OR

 - WITHDRAW ALL OR ANY PART OF THE OFFERING MADE BY THIS PROSPECTUS.
 ------------------------------------------------------------------------------

                                     A-7                             MCF--06/00

<PAGE>   35
                                --------------
                                 THE AIM FUNDS
                                --------------

PRICING OF SHARES

DETERMINATION OF NET ASSET VALUE

The price of each AIM Fund's shares is the fund's net asset value per share. The
AIM Funds value portfolio securities for which market quotations are readily
available at market value. The AIM Funds value short-term investments maturing
within 60 days at amortized cost, which approximates market value. AIM Money
Market Fund and AIM Tax-Exempt Cash Fund value all of their securities at
amortized cost. AIM High Income Municipal Fund, AIM Municipal Bond Fund, AIM
Tax-Exempt Bond Fund of Connecticut and AIM Tax-Free Intermediate Fund value
variable rate securities that have an unconditional demand or put feature
exercisable within seven days or less at par, which reflects the market value of
such securities.

  The AIM Funds value all other securities and assets at their fair value.
Securities and other assets quoted in foreign currencies are valued in U.S.
dollars based on the prevailing exchange rates on that day. In addition, if,
between the time trading ends on a particular security and the close of the
customary trading session of the NYSE, events occur that materially affect the
value of the security, the AIM Funds may value the security at its fair value as
determined in good faith by or under the supervision of the Board of Directors
or Trustees of the AIM Fund. The effect of using fair value pricing is that an
AIM Fund's net asset value will be subject to the judgment of the Board of
Directors or Trustees or its designee instead of being determined by the market.
Because some of the AIM Funds may invest in securities that are primarily listed
on foreign exchanges that trade on days when the AIM Funds do not price their
shares, the value of those funds' assets may change on days when you will not
be able to purchase or redeem fund shares.

  Each AIM Fund determines the net asset value of its shares on each day the
NYSE is open for business, as of the close of the customary trading session, or
any earlier NYSE closing time that day. AIM Money Market Fund also determines
its net asset value as of 12:00 noon Eastern Time on each day the NYSE is open
for business.

TIMING OF ORDERS

You can purchase, exchange or redeem shares during the hours of the customary
trading session of the NYSE. The AIM Funds price purchase, exchange and
redemption orders at the net asset value calculated after the transfer agent
receives an order in good form. An AIM Fund may postpone the right of redemption
only under unusual circumstances, as allowed by the Securities and Exchange
Commission, such as when the NYSE restricts or suspends trading.

TAXES

In general, dividends and distributions you receive are taxable as ordinary
income or long-term capital gains for federal income tax purposes, whether you
reinvest them in additional shares or take them in cash. Distributions are
generally taxable to you at different rates depending on the length of time
the fund holds its assets. Different tax rates may apply to ordinary income
and long-term capital gain distributions, regardless of how long you have held
your shares. Every year, you will be sent information showing the amount of
dividends and distributions you received from each AIM Fund during the prior
year.

  Any long-term or short-term capital gains realized from redemptions of AIM
Fund shares will be subject to federal income tax. Exchanges of shares for
shares of another AIM Fund are treated as a sale, and any gain realized on the
transaction will generally be subject to federal income tax.

  INVESTORS IN TAX-EXEMPT FUNDS SHOULD READ THE INFORMATION UNDER THE HEADING
"OTHER INFORMATION -- SPECIAL TAX INFORMATION REGARDING THE FUND" IN THEIR
PROSPECTUS.

  The foreign, state and local tax consequences of investing in AIM Fund shares
may differ materially from the federal income tax consequences described above.
You should consult your tax advisor before investing.

MCF--06/00                            A-8

<PAGE>   36
                       ----------------------------------
                       AIM GLOBAL FINANCIAL SERVICES FUND
                       ----------------------------------

OBTAINING ADDITIONAL INFORMATION
--------------------------------------------------------------------------------

More information may be obtained free of charge upon request. The Statement of
Additional Information (SAI), a current version of which is on file with the
Securities and Exchange Commission (SEC), contains more details about the fund
and is incorporated by reference into the prospectus (is legally a part of this
prospectus). Annual and semiannual reports to shareholders contain additional
information about the fund's investments. The fund's annual report also
discusses the market conditions and investment strategies that significantly
affected the fund's performance during its last fiscal year.

  If you have questions about this fund, another fund in The AIM Family of
Funds--Registered Trademark-- or your account, or wish to obtain free copies
of the fund's current SAI or annual or semiannual reports, please contact us

---------------------------------------------------------

<TABLE>
<S>                          <C>
BY MAIL:                     A I M Fund Services, Inc.
                             P.O. Box 4739
                             Houston, TX 77210-4739

BY TELEPHONE:                (800) 347-4246

BY E-MAIL:                   [email protected]

ON THE INTERNET:             http://www.aimfunds.com
                             (prospectuses and annual
                             and semiannual reports
                             only)
</TABLE>

---------------------------------------------------------

You also can review and obtain copies of the fund's SAI, reports and other
information at the SEC's Public Reference Room in Washington, DC; on the EDGAR
database on the SEC's Internet website (http://www.sec.gov); or, after paying a
duplication fee, by sending a letter to the SEC's Public Reference Section,
Washington, DC 20549-0102 or by sending an electronic mail request to
[email protected]. Please call the SEC at 1-202-942-8090 for information about
the Public Reference Room.

------------------------------------
 AIM Global Financial Services Fund
 SEC 1940 Act file number: 811-05426
------------------------------------

[AIM LOGO APPEARS HERE]  www.aimfunds.com   GFS-PRO-1   INVEST WITH DISCIPLINE
--Registered Trademark--                               --Registered Trademark--


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