The Globe and Mail reports in its Tuesday edition that U.S. and Canadian stock indexes finished Monday's session up more than 1 per cent as oil prices fell after President Donald Trump postponed strikes against Iranian power plants following "productive conversations" with Tehran. A Reuters dispatch to The Globe says, however, that Iran's parliamentary Speaker Mohammad Baqer Qalibaf posted on social media that no talks had been held with the U.S., contradicting Mr. Trump's announcement and saying the White House was peddling "fake news." Tim Ghriskey at Ingalls & Snyder in New York said, "You never know who to believe but it does appear that Trump is trying to start discussions with somebody in Iran to resolve the war despite strong denials from Iran." Oil prices closed Monday down more than 10 per cent. The Dow rose 631.00 points, or 1.38 per cent, to 46,208.47 and the Nasdaq composite gained 299.15 points to 21,946.76. The S&P/TSX Composite Index ended up 566.40 points, or 1.8 per cent, at 31,883.81, its biggest advance since Feb. 13. Toronto's technology sector rose 3.4 per cent, with shares of electronic equipment company Celestica up 6.6 per cent. Gold was down 2.1 per cent. Financials were up 1.8 per cent.