Can volatility spread fully capture the put–call parity violation?

Shican Liu and Songping Zhu

The North American Journal of Economics and Finance, 2025, vol. 80, issue C

Abstract: Put–call parity (PCP) is a well-known relationship between call and put option prices and their underlying for complete markets. It is equally well known for its violation in incomplete markets. However, unlike all the previously documented reasons in the literature, we show in this paper, through convincing empirical evidence, that the density spread of the put and call is also “blamed” for such a violation. We also provide a theoretical framework to financially explain such an imbalance in incomplete markets.

Keywords: Put–call parity; Volatility spread; Density spread; Option implied densities; Heterogeneity expectation (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecofin:v:80:y:2025:i:c:s1062940825001330

DOI: 10.1016/j.najef.2025.102493

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