Abstract
In the paper, we find out that there is a significant relation between option trading volume and open interest distributions across various strike levels and expected stock returns. Specifically, we construct volume and open interest weighted option strike dispersions. Portfolio level analysis and firm-level cross-sectional regression both indicate a negative and significant relation between expected returns and option strike dispersion. The results are consistent with Miller (1977) theory. The option strike dispersion can be regarded as a proxy for investors’ belief dispersion. Long-short strategy purchasing stocks with low option strike dispersion and shorting those with high option strike dispersion earns annualized abnormal return 14.05% with sharp ratio 0.79.
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