The S&P 500 opened higher by 2.27 points, or 0.07%, at 3,089.28
US stocks eked out slim gains at open on Tuesday, buoyed by technology stocks, as investors looked forward to a speech by President Donald Trump later in the day for clarity on US-China trade relations.
The Dow Jones Industrial Average rose 10.10 points, or 0.04%, at the open to 27,701.59.
The S&P 500 opened higher by 2.27 points, or 0.07%, at 3,089.28. The Nasdaq Composite gained 6.80 points, or 0.08%, to 8,471.07 at the opening bell.