... methods that advance empirical accounting literature. Data Availability: Data are available from the public sources cited in the text. cybersecurity market reactions cumulative abnormal returns trading volume sentiment analysis textual analysis risk factors management’s discussion...

... and infusion of idiosyncratic information into the market and thus improves market efficiency. Our findings show a synchronous increase of information asymmetry and trading volume as posited in the disclosure theory and our hypotheses. We appreciate the helpful suggestions and insights of Rajendra P...