Mr. Madoff's Amazing Returns: An Analysis of the Split-Strike Conversion Strategy
Grenoble Ecole de Management
Phelim P. Boyle
Wilfrid Laurier University - School of Business & Economics; University of Waterloo
May 14, 2009
Journal of Derivatives, Vol. 17, No. 1, 2009
It is now known that the very impressive investment returns generated by Bernie Madoff were based on a sophisticated Ponzi scheme. Madoff claimed to use a split-strike conversion strategy. This strategy consists of a long equity position plus a long put and a short call. In this paper we examine Madoff's returns and compare his investment performance with what could have been obtained using the split-strike conversion strategy based on the historical data. We also analyze the split-strike strategy in general and derive expressions for the expected return, standard deviation, Sharpe ratio and correlation with the market of this strategy. We find that the Madoff's returns lie well outside their theoretical bounds and should have raised suspicions about Madoff's performance.
Number of Pages in PDF File: 30
Keywords: Madoff, split-strike conversion strategy, performance measurementworking papers series
Date posted: April 1, 2009 ; Last revised: May 23, 2011
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