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Liquidity risk and expected option returns

Research output: Contribution to journalArticle

Siu Kai Choy, Jason Wei

Original languageEnglish
Article number105700
JournalJournal of Banking and Finance
Early online date19 Nov 2019
Accepted/In press14 Nov 2019
E-pub ahead of print19 Nov 2019
PublishedFeb 2020

King's Authors


We establish the existence of liquidity risk premium in option returns via sorting analyses and Fama-MacBeth regressions. In leverage-adjusted, hedged returns, the alpha due to liquidity risk ranges from 8.5 to 14.6 basis points per month. In hedged returns unadjusted for leverage, the alpha ranges from 165.9 to 185.1 basis points per month. Compared with the option bid-ask spread, the premium is small in magnitude. In contrast to the findings for stocks and bonds, the liquidity risk premium uncovered in option returns is negative. We explain the negative premium by noting that option end-users write options in net and they might care more about liquidity risk than market makers.

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