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Aspects Regarding The Influence Of Volatility On The Option’S Price

Author

Listed:
  • Assoc. Prof. Dalia Simion Ph. D

    (University of Craiova Faculty of Economics and Business Administration Craiova, Romania)

  • Lect. Roxana Ispas Ph. D

    (University of Craiova Faculty of Economics and Business Administration Craiova, Romania)

Abstract

The most important advantage of the option transactions resides in the fact that it offers, through the existing relations between the derivatives market and the spot market, improved solutions of portfolio management, the put options constituting an insurance policy against the decrease of the prices, and the call options acting as a guarantee for the purchase of the support asset at the pre-set price. The volatility represents a measure of the size of the price fluctuations of the support asset and thus it can be assimilated with a random variable. The analysis of the essential factors that influence the price of the option contracts has demonstrated that the volatility of the support asset's price shows how risky it is for it to be one of the main and most difficult to determine factor, because this is the only parameter that is not known exactly at the moment of the contract conclusion. Under these conditions, due to the profound importance of volatility in the option evaluation and due to the fact that volatility is difficult to estimate, observe or predict, we must model it as a random variable for many of the option contracts for which the model of constant volatility (as the Black Scholes model is) is inadequate..

Suggested Citation

  • Assoc. Prof. Dalia Simion Ph. D & Lect. Roxana Ispas Ph. D, 2010. "Aspects Regarding The Influence Of Volatility On The Option’S Price," Annals of University of Craiova - Economic Sciences Series, University of Craiova, Faculty of Economics and Business Administration, vol. 2(38), pages 1-9, May.
    • Handle: RePEc:aio:aucsse:v:2:y:2010:i:9:p:195-203
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    File URL: http://feaa.ucv.ro/AUCSSE/0038v2-022.pdf
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    References listed on IDEAS

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    1. Isabelle Huault & V. Perret & S. Charreire-Petit, 2007. "Management," Post-Print halshs-00337676, HAL.
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    More about this item

    Keywords

    options contract; historical volatility; stochastic volatility; exercise price; standard deviation;
    All these keywords.

    JEL classification:

    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates

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