Online Trading White Papers

More than You Ever Wanted to Know about Volatility Swaps (But Less than Can Be Said)

Overview In this report we explain the properties and the theory of both variance and volatility swaps, first from an intuitive point of view and then more rigorously. The theory of variance swaps is more straightforward. We show how a variance swap can be theoretically replicated by a hedged portfolio of standard options with suitably chosen strikes, as long as stock prices evolve without jumps. The fair value of the variance swap is the cost of the replicating portfolio. We derive analytic formulas for theoretical fair value in the presence of realistic volatility skews. These formulas can be used to estimate swap values quickly as the skew changes.

Further White Paper Details
PublisherGoldman Sachs & Co. File FormatPDF, requires Acrobat Rdr 5
Date PublishedAugust 2003 Downloads873
FormatWhite Papers   
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