Insider trading, stock return volatility, and the option market's pricing of the information content of insider trading

Chin Han Chiang, Sung Gon Chung, Henock Louis

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We find strong evidence that net insider selling is positively associated with future stock return volatility, consistent with insider selling increasing outside investors’ uncertainty. The positive effect of net insider selling is significantly stronger when the volatility is measured around the earnings announcement. Apparently, option prices do not fully reflect the information content of insider trading for future volatility. More specifically, we find no evidence that option traders adjust the implied volatility for the insider trading effect in a timely manner. Consequently, net insider selling is significantly associated with future option straddle returns and delta neutral returns.

Original languageEnglish (US)
Pages (from-to)65-73
Number of pages9
JournalJournal of Banking and Finance
Volume76
DOIs
StatePublished - Mar 1 2017

All Science Journal Classification (ASJC) codes

  • Finance
  • Economics and Econometrics

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