Us Stocks-Wall St sells off on growth concerns; volatility picks up

... taken away, a tailwind turning into a headwind," said Michael O'Rourke, chief market strategist at JonesTrading in Greenwich, Connecticut. The Dow Jones industrial average ended down 334.97 points, or 1.97 percent, to 16,659.25, the S&P 500 lost ...

http://www.reuters.com/article/2014/10/09/markets-stocks-usa-idUSL2N0S42LQ20141009?type=companyNews&feedType=RSS&feedName=companyNews