英文标题:
《Small-maturity asymptotics for the at-the-money implied volatility slope
in L\\\'evy models》
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作者:
Stefan Gerhold, I. Cetin G\\\"ul\\\"um, Arpad Pinter
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最新提交年份:
2016
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英文摘要:
We consider the at-the-money strike derivative of implied volatility as the maturity tends to zero. Our main results quantify the behavior of the slope for infinite activity exponential L\\\'evy models including a Brownian component. As auxiliary results, we obtain asymptotic expansions of short maturity at-the-money digital call options, using Mellin transform asymptotics. Finally, we discuss when the at-the-money slope is consistent with the steepness of the smile wings, as given by Lee\'s moment formula.
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中文摘要:
当到期日趋于零时,我们考虑隐含波动率的货币履约衍生品。我们的主要结果量化了包含布朗成分的无限活度指数LSevy模型的斜率行为。作为辅助结果,我们利用Mellin变换的渐近性,得到了货币数字看涨期权短期到期的渐近展开式。最后,我们讨论了当货币斜率与李矩公式给出的微笑翅膀的陡度一致时。
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分类信息:
一级分类:Quantitative Finance 数量金融学
二级分类:Pricing of Securities 证券定价
分类描述:Valuation and hedging of financial securities, their derivatives, and structured products
金融证券及其衍生产品和结构化产品的估值和套期保值
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