ABSTRACT This study examines the incremental information in loss firms’ non‐GAAP earnings disclosures relative to GAAP earnings. Using a large sample obtained through textual analysis and hand‐collection, we posit and find that loss firms’ non‐GAAP earnings exclusions offset the low informativeness of GAAP losses for forecasting and valuation. Loss firms’ non‐GAAP earnings are highly predictive of future performance and are valued by investors, while the expenses excluded from GAAP earnings are not. Additional tests suggest that loss firms disclosing non‐GAAP profits have significantly better future performance than GAAP‐only loss firms and are not overvalued by investors. Comparing non‐GAAP earnings of profitable firms to those of loss firms, we find that loss firms’ non‐GAAP metrics are significantly more predictive and less strategic. We conclude that non‐GAAP earnings disclosures are particularly informative about loss firms and help investors disaggregate losses into components that have differential implications for forecasting and valuation.

ABSTRACT This paper examines the stock market reaction to 15 events relating to IFRS adoption in the United States. The goal is to assess whether investors perceive the switch to IFRS as beneficial or costly. Our findings suggest that investors' reaction to IFRS adoption is more positive in cases where IFRS is expected to lead to convergence benefits. Our results also indicate a less positive market reaction for firms with higher litigation risk, which is consistent with investors' concerns about greater discretion and less implementation guidance under IFRS for these firms. Overall, the findings are relevant to the current debate on IFRS adoption in the U.S. and highlight the importance of convergence to investors. Data Availability: All data are publicly available from the sources indicated in the paper (see Appendices A and B).