The global stock market plunged as it started to react to the prospect of a victory for Donald Trump.

Dow futures plummeted more than 800 points, or 4.4-percent.

That put the U.S. market on track for its biggest percentage decline since August 2011 when they plunged 5.5-percent after the U.S. credit rating was downgraded.

Stock indexes across Asia were also deep in the red.

Japan’s Nikkei plummeted 5.5-percent and the Hang Seng in Hong Kong dropped around 3 percent.