(CNBC) -- The S&P 500 was headed for its first decline in four sessions on Monday as Google-parent Alphabet and Microsoft led a decline in tech stocks, offsetting optimism around U.S.-China trade relations.
The broad index traded 0.2% lower after rising as much as 0.36% earlier in the day. The Nasdaq Composite erased a 0.4% gain to trade 0.6% lower. The Dow Jones Industrial Average traded around the flatline after climbing 103 points.
Alphabet shares fell 1% on news that 50 attorneys general are joining an antitrust probe against Google. Microsoft shares traded 1.7% lower. The S&P 500 tech sector fell 1.2%.
Advertisement - story continues below