《Robust Trading of Implied Skew》
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作者:
Sergey Nadtochiy and Jan Obloj
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最新提交年份:
2016
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英文摘要:
In this paper, we present a method for constructing a (static) portfolio of co-maturing European options whose price sign is determined by the skewness level of the associated implied volatility. This property holds regardless of the validity of a specific model - i.e. the method is robust. The strategy is given explicitly and depends only on beliefs about the future values of implied skewness, which is an observable market indicator. As such, our method allows to use the existing statistical tools to formulate the beliefs, providing a practical interpretation of the more abstract mathematical setting, in which the belies are understood as a family of probability measures. One of the applications of our results is a method for trading views on the future changes in implied skew, largely independently of other market factors. Another application provides a concrete improvement of the existing model-independent super- and sub- replication strategies for barrier options, which exploits a given set of beliefs on the implied skew. Our theoretical results are tested empirically, using the historical prices of SP500 options.
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中文摘要:
在本文中,我们提出了一种构造(静态)共同到期欧洲期权组合的方法,其价格符号由相关隐含波动率的偏度水平决定。无论特定模型的有效性如何,该属性都适用,即该方法是稳健的。该策略是明确给出的,仅取决于对隐含偏度未来值的信念,这是一个可观察的市场指标。因此,我们的方法允许使用现有的统计工具来制定信念,为更抽象的数学环境提供了一种实用的解释,其中信念被理解为一系列概率度量。我们的结果的一个应用是,在很大程度上独立于其他市场因素,对隐含偏斜的未来变化进行交易观点的方法。另一个应用程序对现有的与模型无关的障碍选项超复制和子复制策略进行了具体改进,该策略利用了一组给定的隐含偏差信念。我们的理论结果通过SP500期权的历史价格进行了实证检验。
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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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一级分类:Quantitative Finance 数量金融学
二级分类:Mathematical Finance 数学金融学
分类描述:Mathematical and analytical methods of finance, including stochastic, probabilistic and functional analysis, algebraic, geometric and other methods
金融的数学和分析方法,包括随机、概率和泛函分析、代数、几何和其他方法
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Robust_Trading_of_Implied_Skew.pdf
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