shares of norfolk southern corp nsc inched 033 higher to 22259 tuesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 115 to 437841 and the dow jones industrial average djia rising 063 to 3392674 this was the stocks second consecutive day of gains norfolk southern corp closed 4163 short of its 52week high 26422 which the company achieved on august 26th the stock underperformed when compared to some of its competitors tuesday as union pacific corp unp rose 082 to 20298 trading volume 940384 remained 420931 below its 50day average volume of 14 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