波动性衍生品和下行风险

Yueh‐Neng Lin
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引用次数: 0

摘要

长期波动率策略面临的挑战是,由于负展期收益率和负波动率风险溢价,将持有此类保险的成本降至最低。本研究提出了一种对冲策略,波动性作为一种资产类别,提供实质性的保护,防止市场崩溃,同时仍然参与上行保值。结果表明:(1)及时套期保值策略消除了极端负尾部风险,降低了负偏度,换取了略少的大正收益;(ii)动态分配有效缓解负持有成本问题;(iii)使用波动率合约作为极端下行对冲可以是购买场外标准普尔的可行替代方案;(iv)显著的波动率对冲回报是对可投资的高时刻股票风险因素的一种补偿形式。
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Volatility Derivatives and Downside Risk
The challenge in long volatility strategies is to minimize the cost of carrying such insurance due to negative roll yields and negative volatility risk premia. This study proposes a hedging strategy for volatility as an asset class that provides substantial protection against market crashes, while still participating upside preservation. The results show (i) timely hedging strategy removes the extreme negative tail risk and reduces the negative skewness in exchange for slightly fewer instances of large positive returns; (ii) dynamic allocation effectively mitigates the negative cost-of-carry problem; (iii) using volatility contracts as extreme downside hedges can be a viable alternative to buying out-of-the-money SP and (iv) the significant volatility-hedged return is a form of compensation for investable higher-moment equity risk factors.
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