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Why momentum concentrates among overvalued stocks?

Author

Listed:
  • Jack Favilukis
  • Terry Zhang

Abstract

We uncover a link between momentum and overvaluation: assets that generate strong momentum profits have lower risk-adjusted unconditional returns; conversely, trading momentum within overvalued assets doubles the profit of the standard momentum strategy. We compute the profits of a momentum strategy within various portfolios; portfolios within which momentum is profitable are defined as momentum trading opportunity (MTO). High-MTO assets have negative unconditional alphas and concentrate in the short legs of most anomalies; controlling for MTO reduces anomaly alphas by up to half. These results imply that the existence of other anomalies is closely linked to the existence of momentum and they should be studied jointly.

Suggested Citation

  • Jack Favilukis & Terry Zhang, 2024. "Why momentum concentrates among overvalued stocks?," Review of Finance, European Finance Association, vol. 28(2), pages 389-412.
    • Handle: RePEc:oup:revfin:v:28:y:2024:i:2:p:389-412.
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    File URL: http://hdl.handle.net/10.1093/rof/rfad033
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    More about this item

    Keywords

    momentum; anomalies;

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading

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