U.S. stocks plummeted at the open Friday, joining a global stock selloff following the victorious "leave" vote in the U.K.'s referendum on European Union membership. The results sent shockwaves through financial markets across the world, with risk assets selling off and investors flocking to haven assets, like government bonds and gold. Meanwhile, the pound tanked 10% to trade at a 31-year low. The S&P 500 opened 37 points, or 1.8%, lower at 2,072. The Dow Jones Industrial Average lost 408 points, or 2.2%, to 17,617. Meanwhile, the Nasdaq Composite began the session down 186 points, or 3.8%, at 4,726.
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