US stocks give up most early gains, tech stocks higher

Investors appeared to turn cautious Tuesday as U.S. stocks relinquished most of an early gain on Wall Street. Stocks were just about evenly split between gainers and losers in the S&P 500, with technology and communications companies leading the gains. Adobe rose 1.9%, Facebook added 1.2% and Alphabet rose 1%. Payment processing and related companies gained ground after Global Payments said it would buy Total System Services for $21.5 billion. PayPal rose 2.1% and Verisign rose 1%. The market is coming off its third straight weekly loss. U.S. markets were closed Monday for the Memorial Day holiday. Trading has been choppy over the last several weeks as investors grapple with the possibility of a prolonged trade war between the U.S. and China. The nations escalated the dispute earlier this month by raising tariffs on each other.