PLEASE FILE THIS PROSPECTUS SUPPLEMENT WITH YOUR RECORDS.
STRONG COMMON STOCK FUND
STRONG DISCOVERY FUND
STRONG GROWTH FUND
STRONG MID CAP DISCIPLINED FUND
STRONG MID CAP GROWTH FUND
STRONG OPPORTUNITY FUND
STRONG STRATEGIC GROWTH FUND
Supplement to Prospectus dated May 1, 1999
STRONG MID CAP DISCIPLINED FUND
STRONG MID CAP GROWTH FUND
Effective immediately, the Strong Mid Cap Disciplined and Strong Mid Cap Growth
Funds will define "medium-capitalization companies" as companies with a market
capitalization substantially similar to that of companies in the S&P MidCap 400
Index at the time of investment. Previously, "medium-capitalization companies"
was defined as companies with a market capitalization between $800 million and
$8 billion at the time of investment.
The date of this Prospectus Supplement is November 5, 1999.
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