Johnson, Travis L.; So, Eric C. - In: Journal of Financial Economics 106 (2012) 2, pp. 262-286
We examine the information content of option and equity volumes when trade direction is unobserved. In a multimarket … asymmetric information model, equity short-sale costs result in a negative relation between relative option volume and future … firm value. In our empirical tests, firms in the lowest decile of the option to stock volume ratio (O/S) outperform the …