shares of unum group unm slipped 265 to 2787 thursday on what proved to be an allaround mixed trading session for the stock market with the sp 500 index spx rising 030 to 454978 and the dow jones industrial average djia falling 002 to 3560308 the stocks fall snapped a threeday winning streak unum group closed 411 below its 52week high 3198 which the company achieved on june 2nd the stock underperformed when compared to some of its competitors thursday as aflac inc afl fell 057 to 5612 principal financial group inc pfg fell 109 to 6901 and assurant inc aiz rose 008 to 16503 trading volume 15 m remained 19 million below its 50day average volume of 34 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