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Sell-side analysts and mutual fund managers: Complements or substitutes?

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  • Park, Haerang
  • Oh, Byungmin

Abstract

We examine whether analyst coverage and mutual fund trades are complements or substitutes in the course of information incorporation into stock prices. Our empirical evidence indicates that they are complementary. Clustered trades in stocks with low analyst coverage is associated with a subsequent return reversal, which is more pronounced among less actively managed mutual funds. Mutual fund herding under low analyst coverage also amplifies future stock price crash risk through decreased corporate disclosure quality. These negative effects of mutual fund herding are not apparent for stocks with high analyst coverage. To address potential endogeneity concerns, we conduct additional tests using brokerage firm mergers and closures as exogenous shocks to analyst coverage and find consistent results. Our findings highlight the role of analysts in mitigating price-destabilizing herding behavior of mutual funds.

Suggested Citation

  • Park, Haerang & Oh, Byungmin, 2025. "Sell-side analysts and mutual fund managers: Complements or substitutes?," Journal of Banking & Finance, Elsevier, vol. 176(C).
    • Handle: RePEc:eee:jbfina:v:176:y:2025:i:c:s0378426625000664
    DOI: 10.1016/j.jbankfin.2025.107446
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    Keywords

    Analyst coverage; Mutual fund; Herding; Complementarity; Price reversal; Crash risk;
    All these keywords.

    JEL classification:

    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors
    • G24 - Financial Economics - - Financial Institutions and Services - - - Investment Banking; Venture Capital; Brokerage

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