shares of ansys inc anss shed 153 to 31649 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 041 to 409195 and dow jones industrial average djia falling 011 to 3364650 this was the stocks seventh consecutive day of losses ansys inc closed 1740 short of its 52week high 33389 which the company reached on march 31st the stock underperformed when compared to some of its competitors wednesday as microsoft corp msft rose 023