Do Individual Investors Drive Post-Earnings Announcement Drift? Direct Evidence from Personal Trades
AbstractThis study examines whether individual investors are the source of post- earnings announcement drift (PEAD). We provide evidence on how individual investors trade in response to extreme quarterly earnings surprises and on the relation between individual investors' trades and subsequent abnormal returns. We find no evidence that either individuals or any sub-category of individuals in our sample cause PEAD. Individuals are significant net buyers after both negative and positive earnings surprises. There is no indication that trading by any of our investor sub-categories explains the concentration of drift at subsequent earnings announcement dates. While post-announcement individual net buying is a significant negative predictor of stock returns over the next three quarters, individual investor trading fails to subsume any of the power of extreme earnings surprises to predict future abnormal returns.
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Bibliographic InfoPaper provided by EconWPA in its series Finance with number 0412003.
Length: 40 pages
Date of creation: 04 Dec 2004
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post earnings-announcement drift; trading activity; individual investors; market efficiency;
Find related papers by JEL classification:
- G - Financial Economics
This paper has been announced in the following NEP Reports:
- NEP-ALL-2004-12-12 (All new papers)
- NEP-FIN-2004-12-12 (Finance)
- NEP-FIN-2004-12-15 (Finance)
- NEP-FMK-2004-12-12 (Financial Markets)
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