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Do Prices Reveal the Presence of Informed Trading?

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  • PIERRE COLLIN-DUFRESNE
  • VYACHESLAV FOS

Abstract

type="main"> Using a comprehensive sample of trades from Schedule 13D filings by activist investors, we study how measures of adverse selection respond to informed trading. We find that on days when activists accumulate shares, measures of adverse selection and of stock illiquidity are lower, even though prices are positively impacted. Two channels help explain this phenomenon: (1) activists select times of higher liquidity when they trade, and (2) activists use limit orders. We conclude that, when informed traders can select when and how to trade, standard measures of adverse selection may fail to capture the presence of informed trading.

Suggested Citation

  • Pierre Collin-Dufresne & Vyacheslav Fos, 2015. "Do Prices Reveal the Presence of Informed Trading?," Journal of Finance, American Finance Association, vol. 70(4), pages 1555-1582, August.
    • Handle: RePEc:bla:jfinan:v:70:y:2015:i:4:p:1555-1582
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    File URL: http://hdl.handle.net/10.1111/jofi.12260
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