We use a novel data set to examine the across-time consistency and across-firm comparability of firms’ non-GAAP earnings disclosures. Given widespread concern about non-GAAP reporting among regulators, standard setters, the investor community, and academics, our investigation provides timely...

We use a novel dataset to examine the across-time consistency and across-firm comparability of firms’ non-GAAP earnings disclosures. We begin by identifying firms that change their non-GAAP earnings definition from one year to the next. These deviations are uncommon, but when managers change...

We contribute to the debate regarding the informativeness of pro forma earnings disclosures by providing evidence that a group of informed traders, short sellers, trade as if firms' voluntary non-GAAP earnings disclosures create information advantages they can exploit. While prior research...