Why Option Prices Lag Stock Prices: A Trading‐based Explanation

  • Author(s): KALOK CHAN, Y. PETER CHUNG, HERB JOHNSON
  • Published: Apr 30, 2012
  • Pages: 1957-1967
  • DOI: 10.1111/j.1540-6261.1993.tb05136.x

ABSTRACT

While many studies find that option prices lead stock prices, Stephan and Whaley (1990) find that stocks lead options. We find no evidence that options, even deep out‐of‐the‐money options, lead stocks. After confirming Stephan and Whaley's results, we show their results can be explained as spurious leads induced by infrequent trading of options. We show that the stock lead disappears when the average of the bid and ask prices is used instead of transaction prices. Hence, we find no evidence of arbitrage opportunities associated with the stock lead.

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