Dow Tanks at Open Follows yesterday's trend, down more than 300 points By Kate Seamons, Newser Staff Posted Sep 22, 2011 8:57 AM CDT 4 comments Comments Traders work on the floor of the New York Stock Exchange on September 19, 2011 in New York City. (Getty Images) (Newser) – Should you need another reason to pack it in and go back to bed: After falling 284 points yesterday following the Fed's announcement of Operation Twist, which investors interpreted as yet another gloomy assessment of the economy, the Dow kicked off today by plunging even more—a lot more. The Dow fell 313 points at open to 10,811, reports MarketWatch. It's been down as much as 371 points since then. The S&P 500 and Nasdaq shed 31 and 66 points, respectively.