On Mutual Fund Investment Styles

We provide an exploratory investigation of mutual funds' investment styles. Funds' styles tend to cluster around a broad market benchmark. When funds deviate from the benchmark they are more likely to favor growth stocks with good past performance. There is some consistency in styles, although funds with poor past performance are more likely to change styles. Some evidence suggests that growth funds have better style-adjusted performance than value funds. The results are not sensitive to style identification procedure, but an approach based on fund portfolio characteristics performs better in predicting future fund returns.