In a single day, Facebook CEO Mark Zuckerberg lost more than $3 billion as the company's stock slumped, marking what might be the largest single-day loss ever seen by an investor, according to multiple reports.
Zuckerberg lost $3.7 billion last week when the company's stock price fell about 6 percent, Forbes reported. The fall came one day after Facebook CFO David Wehner warned investors that the company expects a slow-down in ad revenue growth in the coming year, despite the company's report of $7 billion in quarterly revenues -- up 56 percent from revenues at the same time last year.
The company has consistently beat revenue and earnings expectations. However, Wehner warned during an earnings call Wednesday that Facebook's expenses will increase next year as users share more videos, driving up network costs, according to Forbes.
Zuckerberg owns 418 million shares of Facebook stock, according to CNN Money, worth about $50.2 billion. Despite last week's loss, Zuckerberg is still listed as the fifth richest person in the world behind Warren Buffett, according to Bloomberg's Billionaires Index, with a net worth of $52.2 billion.
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