<PAGE>
GT GLOBAL GROWTH & INCOME FUND
SUPPLEMENT TO PROSPECTUS DATED MARCH 1, 1997
SUPPLANTING SUPPLEMENT DATED JUNE 16, 1997
- --------------------------------------------------------------------------------
THE FOLLOWING REVISES AND SUPERSEDES THE DISCUSSION UNDER "HOW TO INVEST --
PURCHASING CLASS A SHARES" WITH RESPECT TO GT GLOBAL GROWTH & INCOME FUND:
As of August 1, 1997, the Class A share sales charge waiver described under
section (xiii) of "Sales Charge Waivers -- Class A Shares" is no longer
available.
WITH RESPECT TO THE FUND, SALES CHARGE WAIVERS (VII) AND (XI) DESCRIBED UNDER
"HOW TO INVEST -- PURCHASING CLASS A SHARES -- SALES CHARGE WAIVERS -- CLASS A
SHARES" ARE SUPERSEDED BY THE FOLLOWING WAIVERS:
(vii) Registered investment advisers, trust companies and bank trust departments
exercising DISCRETIONARY investment authority with respect to the money to be
invested in the GT Global Mutual Funds provided that the aggregate amount
invested pursuant to this sales charge waiver is at least $500,000.
(xi) Accounts for which a financial institution or broker/dealer charges an
account management fee, provided the financial institution or broker/dealer has
entered into an agreement with GT Global regarding such accounts.
THE FOLLOWING SUPPLEMENTS THE DISCUSSION UNDER "HOW TO INVEST -- PURCHASING
CLASS B SHARES" WITH RESPECT TO THE FUND:
Class B shares of the Fund may not be purchased for a Savings Incentive Match
Plan for Employees of Small Employers Individual Retirement Accounts ("SIMPLE
IRAs") for which a designated financial institution was selected by the employer
on Form 5305-SIMPLE. Class B shares of the Fund may still be purchased for
SIMPLE IRAs using Form 5304-SIMPLE. In addition, Class A shares of the Fund may
still be purchased for all SIMPLE IRAs.
Upon redemption, Class B shares of the Fund that were acquired pursuant to the
exchange privilege during a tender offer by GT Global Floating Rate Fund
("Floating Rate Fund") will be subject to a contingent deferred sales charge
equivalent to the early withdrawal charge on the common stock of the Floating
Rate Fund, as set forth in the current prospectus for the Floating Rate Fund.
The purchase of shares of the Fund will be deemed to have occurred at the time
of the initial purchase of the Floating Rate Fund's common stock.
[LOGO]
GROST706033M December 22, 1997