shares of pnc financial services group inc pnc slid 213 to 11970 wednesday on what proved to be an allaround poor 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 the stocks fall snapped a threeday winning streak pnc financial services group inc closed 6349 below its 52week high 18319 which the company achieved on april 20th the stock underperformed when compared to some of its competitors wednesday