Facebook CEO Mark Zuckerberg has been doing more than his share to help his company's faltering stock prices. First he announced that he wouldn't be selling his shares, and then, in a public appearance, he tried to assuage Wall Street's fears.
He hinted at new mobile developments and advertising products, which have been sore points for investors and users alike. His appearance gave the stock a boost with an initial bump of about 3%. Trading closed on Wednesday with the stocks up about 7.7% at just under $21.