EU leaders emerged from a marathon four-day and four-night summit with a 750 billion euro ($858 billion) deal to boost economies shattered by the coronavirus epidemic.
The Dow Jones Industrial Average rose 39.91 points, or 0.15%, at the open to 26,774.62. The S&P 500 opened higher by 8.64 points, or 0.27%, at 3,224.21
the Nasdaq Composite gained 26.69 points, or 0.25%, to 10,500.52 at the opening bell.