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基于高频VIX的可观测动态跳跃直接定价VIX期货

Directly pricing VIX futures with observable dynamic jumps based on high‐frequency VIX

Journal of Futures Markets · 2022
被引 10
人大 BABS 3

中文导读

通过直接建模对数VIX并引入基于高频数据的可观测动态跳跃,推导出VIX期货的解析定价公式,实证表明考虑条件方差异方差性和高频信息能显著提升定价精度。

Abstract

Abstract This paper proposes to study volatility index (VIX) futures pricing by directly modeling the logarithmic VIX while incorporating observable dynamic jumps of the VIX, which are derived based on VIX high‐frequency data. The impacts of several different interday and intraday jump tests for VIX futures prices are investigated. We obtain the analytical expression by deducing the forward iteration relations of the lagged logarithm VIX, as well as the conditional variance and jump intensity, and use the maximum likelihood method to estimate the parameters under the risk‐neutral measure. The empirical results prove the superiority of our newly proposed model (especially the model based on the LM jump test), which indicates that considering the heteroscedasticity effect of conditional variance, introducing VIX high‐frequency data information and separating realized jump variation from the realized variance are very important to obtain much more accurate VIX futures pricing.

金融经济学期货定价波动率指数高频数据跳跃检验