The Globe and Mail reports in its Thursday edition that Canada's main stock index along with its U.S. counterparts ended higher on Wednesday as investors shrugged off increased uncertainty about the leadership of the U.S. Federal Reserve. A Reuters dispatch to The Globe says the S&P/TSX Composite Index ended up 98.83 points at 27,152.97, moving closer to the record closing high it posted Tuesday. Wall Street benchmarks also ended higher despite a chaotic half hour when news reports suggested President Donald Trump was set to fire Fed chair Jerome Powell. Shortly before midday, the S&P 500 and Nasdaq fell more than 1 per cent, while the U.S. dollar plunged and Treasury yields rose, after Bloomberg reported the possibility of replacing Mr. Powell, citing an unnamed White House official. Meanwhile, Prime Minister Mark Carney said Canada will introduce a tariff rate quota for countries with which it has free-trade agreements, excluding the U.S., to protect the domestic steel industry. Some experts say that compared with the U.S., valuations remain compelling in Canada. Should interest rates move lower, dividend yields, which are higher in Canada, could be a big draw for investors. The Dow ended 231.49 points higher.