Before the JAB acquisition in July 2017, Panera was the best-performing restaurant stock of the past 20 years, delivering a total shareholder return up 86-fold from July 18, 1997, to July 18, 2017, compared to a less than twofold increase for the S&P 500 during the same period. In late 2017, Panera acquired Au Bon Pain Holding Co. Inc., parent company of the 304-unit Au Bon Pain bakery-café chain. The acquisition reunites Panera and Au Bon Pain, both of which were founded by Ron Shaich, and will intensify Panera's growth in new real estate channels, including hospitals, universities and transportation centers.