shares of union pacific corp unp rose 189 to 23219 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 202 to 408885 and the dow jones industrial average djia rising 134 to 3265459 union pacific corp closed 4675 below its 52week high 27894 which the company reached on march 31st the stock demonstrated a mixed performance when compared to some of its competitors tuesday as canadian national railway co cni rose 223 to 11517 csx corp csx rose 150 to 3376 and norfolk southern corp nsc rose 186 to 25170 trading volume 29 m remained 897764 below its 50day average volume of 38 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