Wednesday's stock market plunge hit Jeff Bezos harder than any other billionaire, USA Today reports. The Amazon founder and CEO lost more than $9 billion during the selloff, which saw the Dow dive 832 points. Of course, Bezos is still doing pretty well for himself; he's still sitting atop the Bloomberg Billionaires Index with an estimated net worth of $145 billion. No. 2 on the list, Bill Gates, lost more than $2 billion during Wednesday's rough trading day, while No. 3 on the list, Warren Buffett, lost almost $4.5 billion. As for how the market is doing Thursday, the Dow was down as many as 342 points in the first half of the day, per MarketWatch. (More stock market stories.)