U.S. stocks ended mixed on Tuesday, as investors weighed escalating trade threats from U.S. President Donald Trump against bullish revisions to Wall Street's outlook for the rest of the year.

Caterpillar (NYSE: CAT) stock handily outperformed the markets in June, rallying 11.5%, according to data provided by S&P Global Market Intelligence. The Dow Jones Industrial Average (DJINDICES: ^DJI) ...