shares of csx corp csx sank 053 to 3751 friday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 041 to 467703 and dow jones industrial average djia falling 001 to 3623166 csx corp closed 050 below its 52week high 3801 which the company reached on january 4th the stock underperformed when compared to some of its competitors friday as union pacific corp unp rose 051 to 25478 canadian national railway co cni rose 086 to 12343 and norfolk southern corp nsc rose 006 to 29681 trading volume 97 m remained 15 million below its 50day average volume of 112 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