A trader works on the floor of the New York Stock Exchange (NYSE) in New York, U.S. (Photographer: Michael Nagle/Bloomberg)

Are Jumpy U.S. Equities Hiding a Nasty Surprise?

(Bloomberg Businessweek) -- It was quiet out there in the markets—spooky quiet. All five of the calmest quarters for U.S. stocks in the past 20 years have occurred since the start of 2017. Then cam...