Long‐Term Market Overreaction: The Effect of Low‐Priced Stocks

  • Author(s): TIM LOUGHRAN, JAY R. RITTER
  • Published: Apr 30, 2012
  • Pages: 1959-1970
  • DOI: 10.1111/j.1540-6261.1996.tb05234.x

ABSTRACT

Conrad and Kaul (1993) report that most of De Bondt and Thaler's (1985) long‐term overreaction findings can be attributed to a combination of bid‐ask effects when monthly cumulative average returns (CARs) are used, and price, rather than prior returns. In direct tests, we find little difference in test‐period returns whether CARs or buy‐and‐hold returns are used, and that price has little predictive ability in cross‐sectional regressions. The difference in findings between this study and Conrad and Kaul's is primarily due to their statistical methodology. They confound cross‐sectional patterns and aggregate time‐series mean reversion, and introduce a survivor bias. Their procedures increase the influence of price at the expense of prior returns.

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