Insider trading and the post-earnings announcement drift

Christina Dargenidou, Ian Tonks, Fanis Tsoligkas

    Research output: Contribution to journalArticle (Academic Journal)peer-review

    19 Citations (Scopus)

    Abstract

    We show that trades by corporate insiders after an earnings announcement determine in part the extent of the post‐earnings announcement drift anomaly. Contrarian trades mitigate the under‐reaction to earnings announcements, and confirmatory trades allow for price discovery with price movements continuing in the same direction as the earnings surprise. These results are consistent with insider trading being a mechanism that provides relevant information on transitory or permanent changes to the earnings process, allowing the market to make appropriate inferences about the nature of the earnings surprise.
    Original languageEnglish
    Pages (from-to)482-508
    Number of pages27
    JournalJournal of Business Finance and Accounting
    Volume45
    Issue number3-4
    Early online date1 Feb 2018
    DOIs
    Publication statusPublished - 1 Mar 2018

    Research Groups and Themes

    • AF Financial Markets
    • AF Corporate Finance

    Keywords

    • earnings announcements
    • insider trading
    • market efficiency
    • market under‐reaction

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