Security Analyst Experience and Post-Earnings-Announcement Drift

Posted: 11 Aug 2014

Date Written: 2003

Abstract

Prior research suggests that various financial anomalies are related to investors’ inability to process historical earnings and price information. In particular, analysts’ failure to incorporate appropriately the serial correlation in earnings surprises provides at least a partial explanation for post-earnings-announcement drift. Because prior work documents that analysts more fully incorporate the information in prior earnings surprises as they gain experience, we examine if firms followed by more experienced analysts exhibit less drift. Measuring analyst firm-specific forecasting experience as the number of prior quarters for which the analyst has issued an earnings forecast for the firm, we find that post-earnings-announcement drift associated with firms with a more experienced analyst following is 18 percent less than that for firms with a less experienced analyst following. This result suggests that the efficiency of a firm’s market price is affected by the aggregate experience level of its analyst following.

Suggested Citation

Mikhail, Michael B. and Walther, Beverly R. and Willis, Richard H., Security Analyst Experience and Post-Earnings-Announcement Drift (2003). Journal of Accounting, Auditing and Finance, Vol. 18, pp. 529-550, 2003, Available at SSRN: https://ssrn.com/abstract=2478202

Michael B. Mikhail (Contact Author)

University of Illinois at Chicago - College of Business Administration ( email )

601 South Morgan Street
11th Floor
Chicago, IL 60607
United States

Beverly R. Walther

Northwestern University - Department of Accounting Information & Management ( email )

2001 Sheridan Road
Evanston, IL 60208
United States
847-467-1595 (Phone)
847-467-1202 (Fax)

Richard H. Willis

Vanderbilt University - Accounting ( email )

Nashville, TN 37203
United States
615-343-1050 (Phone)
615-343-7177 (Fax)

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