Slump of Canada’s Stock Pillars Fuel Economic Concern

Oil, bank and raw-materials are the biggest laggards in Canada for the first time since at least 1988, fueling concern the nation’s economy is fading just as the U.S. is taking off.

The three industries, which collectively account for two-thirds of the Standard & Poor’s/TSX Composite Index, are the worst performers among 10 groups this year, according to data compiled by Bloomberg. The nation’s largest banks joined oil and materials in a rout that erased 4.1 percent from the benchmark index in three days, including the biggest one-day retreat since June 2013.