NBCNews.com | Stocks Selloff: Dow Briefly Dives 550 Points on Sliding Oil Prices NBCNews.com Another 5 percent plunge in the price of crude oil on Wednesday sent stocks sharply lower, with the Dow Jones industrial average briefly plunging more than 550 points -- or more than 3 percent -- before regaining some lost ground in afternoon trading. Dow Tumbles; Investors Flee to Bonds on Oil Rout New turmoil as global markets plunge on oil, China fears Stock rout intensifies: Dow down about 400 points, oil tumbles below $27 |