Filed Pursuant to Rule 497(e)
1933 Act Registration No. 33-10207
SUPPLEMENT DATED SEPTEMBER 30, 1998
TO THE JOINT PROSPECTUS DATED JUNE 1, 1998
OF
IAI DEVELOPING COUNTRIES FUND (A PORTFOLIO OF IAI INVESTMENT FUNDS III, INC.)
IAI INTERNATIONAL FUND (A PORTFOLIO OF IAI INVESTMENT FUNDS III, INC.)
As a result of a shareholder vote to dissolve and liquidate IAI Developing
Countries Fund, on September 23, 1998, the Fund has essentially ceased
operations and expects to distribute proceeds in October 1998.