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Earnings Volatility, Post–Earnings Announcement Drift, and Trading Frictions
Author(s) -
CAO SEAN SHUN,
NARAYANAMOORTHY GANAPATHI S.
Publication year - 2012
Publication title -
journal of accounting research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.767
H-Index - 141
eISSN - 1475-679X
pISSN - 0021-8456
DOI - 10.1111/j.1475-679x.2011.00425.x
Subject(s) - post earnings announcement drift , earnings surprise , earnings , economics , volatility (finance) , trading strategy , financial economics , earnings response coefficient , econometrics , monetary economics , finance
We find that lower ex ante earnings volatility leads to higher Post–Earnings Announcement Drift (PEAD). PEAD is a function of both the magnitude of an earnings surprise and its persistence. While prior research has largely investigated market reactions to the magnitude of the earnings surprise, in this study we show that the persistence of the earnings surprise is equally important. A unique feature of the anomalous PEAD returns documented here concerns the association between abnormal returns and trading frictions. Besides demonstrating that firms with lower earnings volatility have higher abnormal returns, we also find that lower earnings volatility firms have lower trading frictions. Taken together, these findings imply that higher abnormal returns are associated with lower trading frictions. We exploit this implication to empirically demonstrate that PEAD returns due to earnings volatility are not concentrated in the firms with the largest trading frictions, which is in contrast to the findings in prior anomaly studies.