PLEASE FILE THIS PROSPECTUS SUPPLEMENT WITH YOUR RECORDS.
STRONG INDEX 500 FUND
Supplement to the Prospectus dated July 1, 1999
The following information replaces the Annual Fund Operating Expenses table
found on page 4 of the fund's prospectus:
ANNUAL FUND OPERATING EXPENSES (AS A PERCENT OF AVERAGE NET ASSETS)*
<TABLE>
<CAPTION>
<S> <C> <C> <C> <C> <C>
TOTAL ANNUAL FEE WAIVERS
MANAGEMENT SHAREHOLDER OTHER FUND OPERATING AND/OR NET FUND
FEES SERVICING FEE EXPENSES EXPENSES ABSORPTIONS** EXPENSES
- -------------- -------------- -------- -------------- -------------- --------------
0.05% 0.25% 0.43% 0.73% 0.28% 0.45%
</TABLE>
* TOTAL ANNUAL FUND OPERATING EXPENSES, AS WELL AS NET FUND EXPENSES, INCLUDE
THE FUND'S AND THE MASTER PORTFOLIO'S EXPENSES.
**WE HAVE CONTRACTUALLY AGREED TO WAIVE OUR MANAGEMENT FEES AND ABSORB EXPENSES
TO KEEP TOTAL EXPENSES AT OR BELOW 0.45% UNTIL JULY 1, 2000.
The date of this Prospectus Supplement is January 19, 2000.
1
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