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Social media attention and retail investor behavior: Evidence from r/wallstreetbets

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  • Warkulat, Sonja
  • Pelster, Matthias

Abstract

This paper studies the influence of Reddit social media attention on investor risk-taking and welfare using individual trading data from a large trading platform. We show that attention generated on the subreddit r/wallstreetbets (WSB) spurs uninformed trading, also in short positions. WSB attention increases overall risk levels as investors trade riskier stocks and allocate larger portfolio shares to new positions. WSB attention significantly reduces holding period returns (HPRs). Positions created when WSB attention is at its highest realize −8.5% HPRs, while the average HPR across all investments is positive. Investment decisions of retail investors are more likely to be based on emotional responses to angry and disgusted user contributions on Reddit rather than analyst investment advice.

Suggested Citation

  • Warkulat, Sonja & Pelster, Matthias, 2024. "Social media attention and retail investor behavior: Evidence from r/wallstreetbets," International Review of Financial Analysis, Elsevier, vol. 96(PB).
    • Handle: RePEc:eee:finana:v:96:y:2024:i:pb:s1057521924006537
    DOI: 10.1016/j.irfa.2024.103721
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    More about this item

    Keywords

    Risk-taking; Investor welfare; Social media; Reddit; Emotions; Natural-language-processing;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G41 - Financial Economics - - Behavioral Finance - - - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision Making in Financial Markets

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