The Financial Post reports in its Friday edition that when Donald Trump rang the opening bell at the New York Stock Exchange on Dec. 12, the chants of "USA" from the trading floor epitomized the investor exuberance that had greeted the president-elect's victory and powered U.S. stocks to a series of record highs. A Financial Times of London item in the Post says that just a few months later, however, investors now worry that his tariff policy will hurt domestic growth. Meanwhile, the America's foreign policy has galvanized Europe's politicians into promising a defence spending boom that has lifted the region's assets. "You'd be hard pressed to find another period where the disparate trends across the Atlantic have switched gears like this so profoundly," said Robert Tipp at PGIM Fixed Income. In Europe, investors are hoping that growth prospects are finally improving as policy-makers turn to big stimulus packages. "Europe is at its best in a crisis," said Karen Ward at JPMorgan Asset Management, adding that investors had not realized that Europe would rise to the challenge presented by the United States: "The world has changed, and if we do not galvanize and move together we are going to have all sorts of problems."