The Dow Jones Industrial Average rose 68.47 points, or 0.26pc, at the open to 26,851.96.
The S&P 500 opened higher by 9.67 points, or 0.32pc, at 2,989.30.
The Nasdaq Composite gained 41.47 points, or 0.51pc, to 8,183.20 at the opening bell.