Wall Street’s main indexes rose on Monday, bolstered by AI stocks like Nvidia and steelmakers as Trump announced new steel and aluminum tariffs. U.S. metals producers surged, reflecting optimism over earnings growth. Big names such as Amazon also saw gains, while Tesla and some tech stocks faced declines. Wall Street’s main indexes rose on Monday, bolstered by AI stocks like Nvidia and steelmakers as Trump announced new steel and aluminum tariffs. U.S. metals producers surged, reflecting optimism over earnings growth. Big names such as Amazon also saw gains, while Tesla and some tech stocks faced declines. Economic Times