TY - JOUR AU - Baker,Malcolm AU - Litov,Lubomir AU - Wachter,Jessica A. AU - Wurgler,Jeffrey TI - Can Mutual Fund Managers Pick Stocks? Evidence from the Trades Prior to Earnings Announcements JF - National Bureau of Economic Research Working Paper Series VL - No. 10685 PY - 2004 Y2 - August 2004 UR - http://www.nber.org/papers/w10685 L1 - http://www.nber.org/papers/w10685.pdf N1 - Author contact info: Malcolm Baker Baker Library 261 Harvard Business School Soldiers Field Boston, MA 02163 Tel: 617/495-6566 Fax: 617/496-5271 E-Mail: mbaker@hbs.edu Lubomir Litov Washington University in St. Louis E-Mail: litov@wustl.edu Jessica Wachter Department of Finance 2300 SH-DH The Wharton School University of Pennsylvania 3620 Locust Walk Philadelphia, PA 19104 Tel: 215/898-7634 Fax: 215/898-6200 E-Mail: jwachter@wharton.upenn.edu Jeffrey Wurgler Stern School of Business, Suite 9-190 New York University 44 West 4th Street New York, NY 10012 Tel: 212/998-0367 Fax: 212/995-4233 E-Mail: jwurgler@stern.nyu.edu AB - We test whether fund managers have stock-picking skill by comparing their holdings and trades prior to earnings announcements with the returns realized at those events. This approach largely avoids the joint-hypothesis problem with long-horizon studies of fund performance. Consistent with skilled trading, we find that, on average, stocks that funds buy earn significantly higher returns at subsequent earnings announcements than stocks that they sell. Funds display persistence in our event return-based metrics, and those that do well tend to have a growth objective, large size, high turnover, and use incentive fees to motivate managers. ER -