shares of amerisourcebergen corp abc slid 468 to 16105 wednesday on what proved to be an allaround positive trading session for the stock market with the sp 500 index spx rising 105 to 411921 and the dow jones industrial average djia rising 002 to 3409296 the stocks fall snapped a twoday winning streak amerisourcebergen corp closed 1358 short of its 52week high 17463 which the company reached on december 2nd the stock underperformed when compared to some of its competitors wednesday as amazoncom inc amzn rose 196 to 10515 unitedhealth group inc unh fell 044 to 49700 and cvs health corp cvs fell 083 to 8749 trading volume 24 m eclipsed its 50day average volume of 14 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use