Wall Street's main indexes opened higher on Wednesday, as a rout in technology shares halted and investors shrugged off news that AstraZeneca had paused global trials of its experimental coronavirus vaccine.

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The Dow Jones Industrial Average rose 210.82 points, or 0.77%, at the open to 27,711.71.

The S&P 500 opened higher by 37.98 points, or 1.14%, at 3,369.82. The Nasdaq Composite gained 217.07 points, or 2.00%, to 11,064.77 at the opening bell.