shares of amerisourcebergen corp abc inched 021 higher to 14961 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 070 to 389193 and dow jones industrial average djia falling 087 to 3187457 this was the stocks second consecutive day of gains amerisourcebergen corp closed 2502 below its 52week high 17463 which the company achieved on december 2nd the stock demonstrated a mixed performance when compared to some of its competitors