ORLANDO, Florida (Reuters) -Another wave of U.S. tech euphoria lifted Wall Street to new highs on Tuesday, this time in the shape of a deal between Microsoft and OpenAI, a day ahead of a clutch of U.S. Big Tech earnings and the Federal Reserve's policy decision. In my column today, I look at the U.S. stock markets' record concentration and...

04:18 PM EDT, 10/28/2025 (MT Newswires) -- The Toronto Stock Exchange closed higher again Tuesday, rising for fourth day in five, with investors buoyed by reports that Canada is not just working with G7 partners to secure critical mineral supply deals, but is just days away from making announcements on some of them. The resources-heavy S&P/TSX Composite Index closed up...

(Updates with close of European markets) * Megacap earnings due this week * Policy announcement on tap from multiple central banks By Chuck Mikolajczak NEW YORK, Oct 28 (Reuters) - Global shares notched an intraday record high on Tuesday, on track for a fourth straight session of gains, buoyed by signs of cooling trade tensions between the U.S. and China,...

(Updates to close) By Nivedita Balu Oct 28 (Reuters) - Canada's main stock index closed higher on Tuesday, boosted by a robust technology and material shares rally, while investors awaited pivotal central bank decisions. Toronto's S&P/TSX composite index closed up 143.92 points, or 0.48%, at 30,419.68. The technology sector rose 1.6%, helped by gains in Celestica ( CLS ), which...