shares of aflac inc afl slipped 103 to 5671 monday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 028 to 411863 and dow jones industrial average djia falling 014 to 3279840 the stocks fall snapped a threeday winning streak aflac inc closed 1049 short of its 52week high 6720 which the company reached on april 21st the stock underperformed when compared to some of its competitors monday as principal financial group inc pfg rose 027 to 6712 assurant inc aiz fell 067 to 17461 and unum group unm fell 084 to 3192 trading volume 25 m remained 72908 below its 50day average volume of 26 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