Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

NEW YORK, NY - NOVEMBER 22: People stand near the broker's booth for 500.com Limited (NYSE: WBAI) as it's IPO is set on the floor of the New York Stock Exchange on November 22, 2013 in New York City. 500.com Limited, an online sports lottery service provider in China, opened for trading at $20 after pricing 5,786,000 ADSs. In early trading the Dow Jones Industrial Average was little changed after closing above 16,000 for the first time ever on Thursday. (Photo by Spencer Platt/Getty Images)
NEW YORK, NY - NOVEMBER 22: People stand near the broker's booth for 500.com Limited (NYSE: WBAI) as it's IPO is set on the floor of the New York Stock Exchange on November 22, 2013 in New York City. 500.com Limited, an online sports lottery service provider in China, opened for trading at $20 after pricing 5,786,000 ADSs. In early trading the Dow Jones Industrial Average was little changed after closing above 16,000 for the first time ever on Thursday. (Photo by Spencer Platt/Getty Images)

    JUST WATCHED

    Is stock market surge sustainable?

MUST WATCH

Is stock market surge sustainable?

CNN's Maggie Lake speaks to economist Nathan Sheets about whether or not the stock market surge is sustainable.

Is stock market surge sustainable?

CNN's Maggie Lake speaks to economist Nathan Sheets about whether or not the stock market surge is sustainable.