The ticker symbol for Yum! Brands is YUM and it is traded on the New York Stock Exchange. Yum Brands consists of KFC, Pizza Hut/Wing Street, Long John Silvers, A&W Root Beer Restaurants, and Taco Bell.
Oscar Meyer is a brand within the Kraft Food organization therefore there is no symbol for the brand but Kraft's symbol is KFT on the New York Stock Exchange. http://www.kraft.com/Brands/largest-brands/brands-O/
Cinnabon is owned by Focus Brands Inc. which is a private company. Private companies do not have ticker symbols as they are not publicly traded. They also own the Schlotzsky's, Carvel, and Moe's Southwest Grill brands
Taco Bell is owned by Yum Brands and trades under the ticker symbol YUM. Yum brands also owns Pizza Hut and KFC. Yum also owns A&W, Captain D's and has partial ownership of Baskin Robbins.
Sean John was purchased by Iconix Brands which trades under the ticker symbol ICON on the NASDAQ. Iconix also liscense brands such as Candies, Joe Boxer, Ocean Pacific, Roca Wear, Starter, London Fog, Mudd, and Mossimo.