shares of ppg industries inc ppg slumped 063 to 13807 thursday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 036 to 410502 and the dow jones industrial average djia rising 001 to 3348529 ppg industries inc closed 215 below its 52week high 14022 which the company achieved on april 3rd the stock demonstrated a mixed performance when compared to some of its competitors thursday as 3m co mmm fell 071 to 10156 and sherwinwilliams