shares of discover financial services dfs shed 336 to 10332 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 214 to 413799 and dow jones industrial average djia falling 191 to 3306361 this was the stocks fourth consecutive day of losses discover financial services closed 3046 below its 52week high 13378 which the company reached on august 27th the stock underperformed when compared to some of its competitors monday as capital one financial corp cof fell 286 to 10900 zions bancorp na zion fell 281 to 5600 and tfs financial corp tfsl fell 237 to 1484 trading volume 13 m remained 705579 below its 50day average volume of 20 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use