This paper tests whether the stock market overreacts to extreme earnings, by examining firms' stock returns over the thirty-six months subsequent to extreme earnings years. While the poorest earners do outperform the best earners, the poorest earners are also significantly smaller than the best earners. When poor earners are matched with good earners of equal size, there is little evidence of differential performance. This suggests that size, and not investor overreaction to earnings, is responsible for the "overreaction" phenomenon, the tendency for prior period losers to outperform prior period winners in the subsequent period. Copyright 1989 by American Finance Association.
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Article provided by American Finance Association in its journal Journal of Finance.
Volume (Year): 44 (1989) Issue (Month): 5 (December) Pages: 1385-99 Download reference. The following formats are available: HTML,
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"A Model of Investor Sentiment,"
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5926, National Bureau of Economic Research, Inc.
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