Canadian stocks erased gains in the final hour of trading, paring the longest monthly winning streak in three years, as drop among miners offset gains in industrial and energy shares amid an unexpected acceleration in growth.
Mega Brands Inc., the world’s second-largest maker of snap-together blocks after Lego A/S, surged 36 percent after Mattel Inc. agreed to buy the toymaker. Atlantic Power Corp., which runs electricity generation stations, jumped 3.9 percent after posting the first per-share profit in three quarters. OceanaGold Corp. slumped 3.3 percent as gold fell for the second time in three days. Valeant Pharmaceuticals International Inc. dropped the most since June.