shares of csx corp csx dropped 066 to 3295 wednesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 023 to 3552012 and the sp 500 index spx falling 002 to 456675 csx corp closed 176 below its 52week high 3471 which the company reached on august 11th the stock underperformed when compared to some of its competitors wednesday as union pacific corp unp rose 1042 to 23800 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