We study the long-term performance of 267 Canadian mergers and acquisitions that take place between 1980 and 2000, using different calendar-time approaches with and without overlapping cases. Our results suggest that Canadian acquirers significantly under perform over the three-year post-event period. Further analysis shows that our results are consistent with the extrapolation and the method-of-payment hypotheses; that is, glamour acquirers, and equity financed deals underperform. We also find that cross-border deals perform poorly in the long run.