Companies’ earnings conference calls are perceived to be venues for sell‐side equity analysts to ask management questions. In this study, we examine another important conference call participant—the buy‐side analyst—that has been underexplored in the literature due to data limitations. Using a large sample of transcripts, we identify 3,834 buy‐side analysts from 701 institutional investment firms who participated (i.e., asked a question) in 13,332 conference calls to examine the determinants and implications of their participation. Buy‐side analysts are more likely to participate when sell‐side analyst coverage is low and dispersion in sell‐side earnings forecasts is high, consistent with buy‐side analysts participating when a company's information environment is poor. Institutional investors trade more of a company's stock in the quarters in which their buy‐side analysts participate in the call. Finally, we find evidence that buy‐side analyst participation is associated with company‐level absolute changes in future stock price, trading volume, institutional ownership, and short interest.

Conference presentations differ from other voluntary disclosures in that the audience for the disclosure is co-located with managers in a well-defined physical and social setting, or “disclosure milieu.” The milieu affects the degree to which conference participants can update their prior beliefs about the firm with information signals obtained through interactions with management and other informed participants. While the average abnormal stock return and volume reactions to presentations are positive, there is a great deal of cross-sectional variation as indicated by negative median reactions. We find that conference characteristics that determine the nature of the audience and its interactions, such as sponsor, location, size, and industry-focus, are significantly associated with the market reaction, consistent with the disclosure milieu explaining the cross-sectional variation in the information content of the presentation. We also find that conference characteristics explain changes in subsequent analyst and institutional investor following, consistent with the disclosure milieu creating differences in access to management by potential new investors and analysts.

We posit that a change in analyst interest in a firm is an early indicator of the firm's future fundamentals, capital market activities, and stock returns. We measure increases in analyst interest by obser.ving analysts who do not cover a firm but participate in that firm's earnings conference call, and we measure decreases in analyst interest by observing analysts who cover a firm, yet are absent from that firm's call. We find that increases in analyst interest are positively associated with future changes in firm fundamentals and capital market activities, while decreases in analyst interest are negatively associated with capital market activities. We also find that increases (decreases) in analyst interest are positively (negatively) correlated with future stock returns over the next three months and that a hedge portfolio yields a significant abnormal return. Overall, our study shows that analyst interest is a novel and early indicator of future firm fundamentals and capital market consequences.