FOX NEWS: Mark Zuckerberg loses $16B in one day as Facebook stock plunges 20 percent

Mark Zuckerberg loses $16B in one day as Facebook stock plunges 20 percent



Facebook CEO Mark Zuckerberg's net worth has fallen more than $16 billion after the company reported weaker-than-expected second-quarter results and issued guidance that its financial future isn't as rosy as some investors thought it might be.