I use computational linguistic techniques to study the content, determinants, and stock market consequences of conference calls that are not held in conjunction with quarterly earnings releases (hereafter, non-earnings conference calls). I find that large firms, loss firms, firms with more volatile earnings and returns, and firms with complex operations and a greater number of analysts following hold more non-earnings conference calls. Firms with volatile earnings and greater operational complexity discuss more earnings, investment, and market-related topics in non-earnings conference calls. These results are consistent with the notion that firms facing greater informational problems hold more non-earnings conference calls. I also find that controlling for other disclosure types, non-earnings conference calls incrementally explain quarterly abnormal stock returns, suggesting that they indeed help improve firms' information environment.

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