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Journal of Finance Vol. 77 No. 3 2022

Factor Momentum and the Momentum Factor

Sina Ehsani; Juhani T. Linnainmaa1

1 Dartmouth College

Abstract

Momentum in individual stock returns relates to momentum in factor returns. Most factors are positively autocorrelated: the average factor earns a monthly return of six basis points following a year of losses and 51 basis points following a positive year. We find that factor momentum concentrates in factors that explain more of the cross section of returns and that it is not incidental to individual stock momentum: momentum‐neutral factors display more momentum. Momentum found in high‐eigenvalue principal component factors subsumes most forms of individual stock momentum. Our results suggest that momentum is not a distinct risk factor—it times other factors.

DOI
10.1111/jofi.13131
Volume
77
Issue
3
Pages
1877-1919
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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