shares of idexx laboratories inc idxx rallied 255 to 61156 wednesday on what proved to be an allaround favorable trading session for the stock market with the sp 500 index spx rising 163 to 470985 and the dow jones industrial average djia rising 108 to 3592743 the stocks rise snapped a twoday losing streak idexx laboratories inc closed 9539 below its 52week high 70695 which the company reached on july 29th the stock demonstrated a mixed performance when compared to some of its competitors wednesday as abbott laboratories abt rose 197 to 13556 thermo fisher scientific inc tmo rose 374 to 65574 and henry schein inc hsic fell 140 to 7351 trading volume 424833 eclipsed its 50day average volume of 337195 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