shares of unitedhealth group inc unh slid 101 to 42536 monday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 085 to 447953 and the dow jones industrial average djia rising 061 to 3533571 the stocks fall snapped a twoday winning streak unitedhealth group inc closed 600 below its 52week high 43136 which the company achieved on august 20th the stock underperformed when compared to some of its competitors monday as anthem inc antm fell 017 to 37734 humana inc hum rose 021 to 41447 and centene corp cnc rose 034 to 6453 trading volume 24 m remained 468436 below its 50day average volume of 28 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