shares of align technology inc algn advanced 123 to 21292 tuesday on what proved to be an allaround great trading session for the stock market with the sp 500 index spx rising 087 to 399173 and the dow jones industrial average djia rising 017 to 3359292 align technology inc closed 48589 short of its 52week high 69881 which the company reached on november 17th the stock demonstrated a mixed performance when compared to some of its competitors tuesday as danaher corp dhr rose 135 to 27033 3m co mmm rose 015 to 13122 and dentsply sirona inc xray rose 326 to 3134 trading volume 816214 remained 301609 below its 50day average volume of 11 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