Momentum and post-earnings-announcement drift anomalies: The role of liquidity risk

Momentum and post-earnings-announcement drift anomalies: The role of liquidity risk This paper investigates the components of liquidity risk that are important for understanding asset-pricing anomalies. Firm-level liquidity is decomposed into variable and fixed price effects and estimated using intraday data for the period 1983–2001. Unexpected systematic (market-wide) variations of the variable component rather than the fixed component of liquidity are shown to be priced within the context of momentum and post-earnings-announcement drift (PEAD) portfolio returns. As the variable component is typically associated with private information (e.g., Kyle, 1985. Econometrica 53, 1315–1335), the results suggest that a substantial part of momentum and PEAD returns can be viewed as compensation for the unexpected variations in the aggregate ratio of informed traders to noise traders. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Financial Economics Elsevier

Momentum and post-earnings-announcement drift anomalies: The role of liquidity risk

Journal of Financial Economics, Volume 80 (2) – May 1, 2006

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Publisher
Elsevier
Copyright
Copyright © 2005 Elsevier B.V.
ISSN
0304-405x
DOI
10.1016/j.jfineco.2005.04.005
Publisher site
See Article on Publisher Site

Abstract

This paper investigates the components of liquidity risk that are important for understanding asset-pricing anomalies. Firm-level liquidity is decomposed into variable and fixed price effects and estimated using intraday data for the period 1983–2001. Unexpected systematic (market-wide) variations of the variable component rather than the fixed component of liquidity are shown to be priced within the context of momentum and post-earnings-announcement drift (PEAD) portfolio returns. As the variable component is typically associated with private information (e.g., Kyle, 1985. Econometrica 53, 1315–1335), the results suggest that a substantial part of momentum and PEAD returns can be viewed as compensation for the unexpected variations in the aggregate ratio of informed traders to noise traders.

Journal

Journal of Financial EconomicsElsevier

Published: May 1, 2006

References

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