shares of unum group unm inched 018 higher to 3993 thursday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 133 to 414622 and the dow jones industrial average djia rising 114 to 3402969 this was the stocks fourth consecutive day of gains unum group closed 671 short of its 52week high 4664 which the company achieved on november 2nd the stock underperformed when compared to some of its competitors thursday as chubb ltd cb rose 045