Our dedicated franchisees and team continue to deliver a great experience to our guests in addition to sharing in our long-term vision to further propel this iconic brand forward." Denny's shares opened for trading on Wednesday at $15.64; the company's 52-week range is $13.33 to $20.02. The Case For Shake Shack: Not unlike Denny's, this company sprang from very humble origins — in this case, the roots of Shake Shack was a hot dog cart in New York City's Madison Square Park run from the kitchen of Eleven Madison Park, a ritzy restaurant operated by Danny Meyer's Union Square Hospitality Group. After three years, the hot dog cart transitioned into a kiosk-style eatery known as Shake Shack. Today, Shake Shack operates 240 U.S. locations and more than 125 international locations including in London, Mexico City, Istanbul, the Middle East, and Asia. The company has been publicly traded since January 2015.