The aim of this study is to identify the performance indicators that Canadian corporations voluntarily disclose based on the Global Reporting Initiative (GRI) and to examine their comparability. The results tend to show that all the companies studied disclose few indicators and that the format of these indicators makes comparisons impossible. Additional analyses revealed that while a minority of companies publish some indicators, the vast majority (91%) disclose poor quality information. Accordingly, the companies' strategy appears to be to muddy the waters than actually account for their performance.