shares of henry schein inc hsic slid 345 to 8344 thursday on what proved to be an allaround dismal trading session for the stock market with the sp 500 index spx falling 356 to 414687 and dow jones industrial average djia falling 312 to 3299797 the stocks fall snapped a twoday winning streak henry schein inc closed 924 below its 52week high 9268 which the company achieved on april 14th the stock demonstrated a mixed performance when compared to some of its competitors thursday as idexx laboratories inc idxx fell 637 to 38511 mckesson corp mck fell 142 to 31523 and amerisourcebergen corp abc fell 102 to 15519 trading volume 13 m eclipsed its 50day average volume of 932335 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