The crash of '87: was it expected? The evidence from options markets
Article Abstract:
Transactions prices of S&P 500 futures options over 1985-1987 are examined for evidence of expectations prior to October 1987 of an impending stock market crash. First, it is shown that out-of-the-money puts became unusually expensive during the year preceding the crash. Second, a model is derived for pricing American options on jump-diffusion processes with systematic jump risk. The jump-diffusion parameters implicit in options prices indicate that a crash was expected and that implicit distributions were negatively skewed during October 1986 to August 1987. Both approaches indicate no strong crash fears during the 2 months immediately preceding the crash. (Reprinted by permission of the publisher.)
Publication Name: Journal of Finance
Subject: Business
ISSN: 0022-1082
Year: 1991
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Testing the expectations hypothesis on the term structure of volatilities in foreign exchange options
Article Abstract:
This article tests the expectations hypothesis in the term structure of volatilities in foreign exchange options. In particular, it addresses whether long-dated volatility quotes are consistent with expected future short-dated volatility quotes, assuming rational expectations. For options observed daily from December 1, 1989 to August 31, 1992 on dollar exchange rates against the pound, mark, yen, and Swiss franc, we are unable to reject the expectations hypothesis in the great majority of cases. The current spread between long- and short-dated volatility rates proves to be a significant predictor of the direction of future short-dated rates. (Reprinted by permission of the publisher.)
Publication Name: Journal of Finance
Subject: Business
ISSN: 0022-1082
Year: 1995
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