shares of idexx laboratories inc idxx slipped 404 to 53230 tuesday on what proved to be an allaround mixed trading session for the stock market with the dow jones industrial average djia rising 020 to 3563068 and the sp 500 index spx falling 027 to 457673 idexx laboratories inc closed 3244 below its 52week high 56474 which the company reached on july 27th the stock underperformed when compared to some of its competitors tuesday as johnson  johnson jnj rose 081 to 16889 medtronic plc mdt fell 009 to 8768 and boston scientific corp bsx rose 008 to 5189 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