Financial markets were thrown into disarray in Tokyo on Wednesday as Republican candidate Donald Trump secured victory in the U.S. presidential race, with the Nikkei stock index nose-diving by 5.36 percent and yen briefly surging against the dollar to the 101 range.

Panicked investors rushed to unwind bets they had piled on amid pre-vote predictions Democratic candidate Hillary Clinton would win the presidency.

The 225-issue Nikkei stock average ended down 919.84 points from Tuesday at 16,251.54, its biggest one-day drop since June 24 when Britain voted to leave the European Union. The broader Topix index of all first section issues on the Tokyo Stock Exchange finished 62.33 points, or 4.57 percent, lower at 1,301.16.