In September 2003, several prominent mutual fund companies came under investigation for illegal trading practices. Allegations suggested these funds allowed certain investors to profit from short-term trading schemes at the expense of other investors. Surprisingly, regulatory authorities have known for more than two decades of the potential for such abuses, yet have taken limited steps to correct the problem. We explore investor reaction to the scandal by measuring assets under management, stock returns, and performance. Mutual funds managed by investigated firms (...) show a substantial decline in post-announcement assets under management. These firms also experienced significantly negative announcement-period returns. Finally, we discuss several policy suggestions to prevent future trading abuses and provide direction for future research. (shrink)

A mutual fund family incubates a fund when it creates a privately subsidized fund not available to the general investing public. It destroys unsuccessful incubator funds. The few successful funds will report higher incubation returns than the market return in advertisements intended to attract money from individual investors. This practice is currently allowed by the SEC. The evidence is that incubation returns are not a good predictor of subsequent fund performance and likely serve to mislead unsuspecting investors.