shares of csx corp csx sank 061 to 3116 tuesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 115 to 392105 and dow jones industrial average djia falling 071 to 3176154 csx corp closed 747 short of its 52week high 3863 which the company achieved on march 7th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as union pacific corp unp fell 064 to 21597 canadian national railway co cni fell 042 to 11679 and norfolk southern corp nsc fell 093 to 24461 trading volume 129 m remained 46 million below its 50day average volume of 175 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