U.S. stocks opened higher Monday, buoyed by an easing of trade tensions between the U.S. and China. U.S. Treasury Secretary Steven Mnuchin over the weekend said a trade war between the economic power was "on hold" after Washington and Beijing agreed to suspend threatened tariffs. The S&P 500 rose 0.8%, while the Nasdaq Composite gained 1%. The Dow industrials advanced 259 points, or 1%. Shares of Caterpillar Inc. rose 2.6% to lead Dow gainers, while shares of General Electric Co. jumped 2.4% after a deal to merge its transportation business with Wabtec Corp.