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Permanent and Temporary Components of Stock Prices

Fama, Eugene F., French, Kenneth R.·1988·Journal of Political Economy

Abstract

A slowly mean-reverting component of stock prices tends to induce negative autocorrelation in returns. The autocorrelation is weak for the daily and weekly holding periods common in market efficiency tests but stronger for long-horizon returns. In tests for the 1926-85 period, large negative autocorrelations for return horizons beyond a year suggest that predictable price variation due to mean reversion accounts for large fractions of 3-5-year return variances. Predictable variation is estimated to be about 40 percent of 3-5-year return variances for portfolios of small firms. The percentage falls to around 25 percent for portfolios of large firms.

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Metadata

Authors
Fama, E. F., & French, K. R.
Venue
Journal of Political Economy
Published
1988-04
Volume
96
Issue
2
Pages
246-273
ISSN
  • 0022-3808 (ISSN-L)
  • 1537-534X
OpenAlex
W2038621549
Cited by
3,025
References
0
FWCI
133.82
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Permanent and Temporary Components of Stock Prices. https://app.cochat.ai/papers/10.1086/261535
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Fama, E. F., & French, K. R. (1988). Permanent and Temporary Components of Stock Prices. Journal of Political Economy. https://doi.org/10.1086/261535

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