Retrieving risk neutral moments and expected quadratic variation from option prices

Retrieving risk neutral moments and expected quadratic variation from option prices This paper derives exact formulas for retrieving risk neutral moments of future payoffs of any order from generic European-style option prices. It also provides an exact formula for retrieving the expected quadratic variation of the stock market implied by European option prices, which nowadays is used as an estimate of the implied volatility, and a formula approximating the jump component of this measure of variation. To implement the above formulas to discrete sets of option prices, the paper suggests a numerical procedure and provides upper bounds of its approximation errors. The performance of this procedure is evaluated through a simulation and an empirical exercise. Both of these exercises clearly indicate that the suggested numerical procedure can provide accurate estimates of the risk neutral moments, over different horizons ahead. These can be in turn employed to obtain accurate estimates of risk neutral densities and calculate option prices, efficiently, in a model-free manner. The paper also shows that, in contrast to the prevailing view, ignoring the jump component of the underlying asset can lead to seriously biased estimates of the new volatility index suggested by the Chicago Board Options Exchange. Review of Quantitative Finance and Accounting Springer Journals

Retrieving risk neutral moments and expected quadratic variation from option prices

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Springer US
Copyright © 2016 by Springer Science+Business Media New York
Finance; Corporate Finance; Accounting/Auditing; Econometrics; Operation Research/Decision Theory
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