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arXiv 1204.3452q-fin.PRq-fin.RM
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标准期权收益的方差

The Variance of Standard Option Returns

Adi Ben-Meir, Jeremy Schiff

摘要:

绝大多数关于期权定价的工作都是基于风险中性定价的假设,因此主要关注期权收益的期望值,而不考虑风险参数,如方差。我们表明,它是可能的,以明确的公式为欧式期权收益率(香草呼叫和看跌期权,以及障碍期权)的方差,并为美式期权的方差可以使用PDE方法计算,涉及修改后的Black-Scholes PDE。我们展示了如何需要考虑风险参数,如方差,以及到期无价值的概率(PEW),自然产生的个人投资者的选择。此外,我们表明,波动率微笑出现在一个简单的风险寻求期权定价模型。

英文摘要:

The vast majority of works on option pricing operate on the assumption of risk neutral valuation, and consequently focus on the expected value of option returns, and do not consider risk parameters, such as variance. We show that it is possible to give explicit formulae for the variance of European option returns (vanilla calls and puts, as well as barrier options), and that for American options the variance can be computed using a PDE approach, involving a modified Black-Scholes PDE. We show how the need to consider risk parameters, such as the variance, and also the probability of expiring worthless (PEW), arises naturally for individual investors in options. Furthermore, we show that a volatility smile arises in a simple model of risk-seeking option pricing.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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