shares of union pacific corp unp rose 145 to 24562 tuesday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 161 to 446221 and the dow jones industrial average djia rising 145 to 3491120 union pacific corp closed 3332 short of its 52week high 27894 which the company achieved on march 31st the stock demonstrated a mixed performance when compared to some of its competitors tuesday as canadian national railway co cni rose 079 to 12731 csx corp csx rose 155 to 3529 and norfolk southern corp nsc rose 090 to 26486 trading volume 23 m remained 16 million below its 50day average volume of 39 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