The biggest loser in the world was Facebook CEO Mark Zuckerberg, who had a terrible year amid internal scandals and damaging publicity. He was the only American among the ten biggest billionaire losers with a loss of $18.6 billion and current net worth of $52.5 billon.
The day after Facebook reported disappointing second-quarter results in July, the company’s shares plunged 19%, erasing $15.4 billion of Zuckerberg’s fortune. Other factors contributed to Facebook’s decline in 2018: Congress grilled Zuckerberg on Facebook’s data use in April, and in November, the New York Timesdisclosed that Facebook paid a public affairs firm to promulgate negative information about George Soros, who had criticized the social media firm
Still there are also billionaires whose fortune increased, the biggest gainer by a vast mast margin was Amazon founder and CEO Jeff Bezos whose fortune climbed $28 billion making its net worth $126 between December 29 2017 to December 17 2018.