The Impact of CEO Turnover on Equity Volatility
Matthew J. Clayton
University of Virginia - McIntire School of Commerce
Jay C. Hartzell
University of Texas at Austin - Department of Finance
Joshua V. Rosenberg
Federal Reserve Bank of New York
NYU Working Paper No. FIN-00-014
A change in executive leadership is a significant event in the life of a firm. Our paper investigates a potentially significant consequence of a CEO turnover: a change in equity volatility. We develop several hypotheses about how CEO changes might affect stock price volatility, and test these hypotheses using a sample of 872 CEO changes over the 1979-1995 period. We find that volatility increases following a CEO turnover, even for the most frequenttype, when a CEO leaves voluntarily and is replaced by someone from inside the firm. Ourresults indicate that forced turnovers, which are expected to result in large strategy changes, increase volatility more than voluntary turnovers. Outside successions, which are expected to result in a successor CEO with less certain skill in managing the firm's operations, increase volatility more than inside turnovers. We also document a greater stock-price response to earnings announcements around CEO turnover, consistent with more informative signals of value driving the increased volatility. Controls for firm-specific characteristics indicate that the volatility changes cannot be entirely attributed to factors such as changes in firm operations, firm size, and both volatility change and performance prior to the turnover.
Number of Pages in PDF File: 44working papers series
Date posted: November 3, 2008
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