shares of sp global inc spgi shed 273 to 36219 tuesday on what proved to be an allaround grim trading session for the stock market with the sp 500 index spx falling 112 to 414558 and dow jones industrial average djia falling 069 to 3305551 sp global inc closed 3361 short of its 52week high 39580 which the company reached on august 15th the stock underperformed when compared to some of its competitors tuesday as moodys corp mco fell 267 to 31279 trading volume 12 m remained 7199 below its 50day average volume of 12 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