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Financial media, price discovery, and merger arbitrage

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  • Buehlmaier, Matthias M. M.
  • Zechner, Josef

Abstract

Using merger announcements and applying methods from computational linguistics we find strong evidence that stock prices underreact to information in financial media. A one standard deviation increase in the media-implied probability of merger completion increases the subsequent 12-day return of a long-short merger strategy by 1.2 percentage points. Filtering out the 28% of announced deals with the lowest media-implied completion probability increases the annualized alpha from merger arbitrage by 9.3 percentage points. Our results are particularly pronounced when high-yield spreads are large and on days when only few merger deals are announced. We also document that financial media information is orthogonal to announcement day returns.

Suggested Citation

  • Buehlmaier, Matthias M. M. & Zechner, Josef, 2016. "Financial media, price discovery, and merger arbitrage," CFS Working Paper Series 551, Center for Financial Studies (CFS).
  • Handle: RePEc:zbw:cfswop:551
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    2. Wagner, Alexander F. & Filipović, Zoran, 2019. "The Intangibles Song in Takeover Announcements: Good Tempo, Hollow Tune," CEPR Discussion Papers 13560, C.E.P.R. Discussion Papers.
    3. Arouri, Mohamed & Gomes, Mathieu & Pukthuanthong, Kuntara, 2019. "Corporate social responsibility and M&A uncertainty," Journal of Corporate Finance, Elsevier, vol. 56(C), pages 176-198.

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    More about this item

    Keywords

    financial media; merger arbitrage; hedge funds; market efficiency; mergers and acquisitions;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading
    • G34 - Financial Economics - - Corporate Finance and Governance - - - Mergers; Acquisitions; Restructuring; Corporate Governance

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