期刊
ACCOUNTING REVIEW
卷 86, 期 2, 页码 385-416出版社
AMER ACCOUNTING ASSOC
DOI: 10.2308/accr.00000027
关键词
post-earnings-announcement drift; earnings expectations; market efficiency; small and large traders; investor sophistication
We examine whether the two distinct post-earnings-announcement drifts associated with seasonal random-walk-based and analyst-based earnings surprises are attributable to the trading activities of distinct sets of investors. We predict and find that small (large) traders continue to trade in the direction of seasonal random-walk-based (analyst-based) earnings surprises after earnings announcements. We also find that when small (large) traders react more thoroughly to seasonal random-walk-based (analyst-based) earnings surprises at the earnings announcements, the respective drift attenuates. Further evidence suggests that delayed small trades associated with random-walk-based surprises are consistent with small traders' failure to understand time-series properties of earnings, whereas delayed large trades associated with analyst-based surprises are more consistent with a longer price discovery process. We also find that the analyst-based drift has declined in recent years.
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