Billionaire George Soros lost nearly $1billion after the stock market surged following Donald Trump's surprise November 8 election win over Hillary Clinton.

The veteran hedge-fund manager's former deputy, Stanley Druckenmiller, who helped Soros score nearly $1billion of profits betting against the British pound back in 1992 said that he foresaw that the market would surge and gained a nice sizable gain,The Wall Street Journal reported.

Soros has a net worth of approximately $24.9billion after years of making prudent investments centered on careful and emotionless analysis, similar to what he did in 1992 with the British pound.

The 86-year-old survivor of the Holocaust became 'more bearish immediately after Trump's election', and that positioning has 'proved to be a mistake—the stock market has rallied on expectations that ... Trump's policies will boost corporate earnings and the overall economy,' sources told the Journal.

Billionaire George Soros (left) lost nearly $1billion after the stock market surged following Donald Trump's (right) surprise November 8 election win over Hillary Clinton

However, both stocks and treasury yields increased in the wake of Trump's win.

Despite the billion-dollar hit to his wallet, Soros Fund Management LLC, which manages roughly $30billion for the businessman and his family, was up five per cent at the end of 2015.

In the wake of the election, many experts predicted that stocks would fall, but on the contrary the Dow Jones Industrial Average has climbed 9.3 per cent.

During the election, Soros was a supporter of Hillary Clinton and he contributed millions of dollars to super PACS supporting her campaign for the White House.

Soros Fund Management LLC, which manages $30billion for Soros (above) and his family, was up 5 per cent at the end of 2015

He also donated money to other Democratic groups.

Since Trump's election win, Soros has not held back in criticizing the new leader of the country.

Soros called him a 'would-be dictator' and also warned that Trump's win could mean long-term health of democracy.

He also pledged $10million from his Open Society Foundation in late November to help the increase in reported hate crimes since the election.

Soros told the New York Times at the time that due in part to the 'incendiary rhetoric' of the President-elect, 'dark forces have been awakened' since his win.

'We must do something to push back against what's happening here,' Soros told the newspaper.

He added that he was 'deeply troubled' by the increase in incidents of harassment.