After-Hours Buzz: Sonic, Navistar, Michael Kors & More By: CNBC.com News June 24, 2013 at 16:23 PM EDT Check out which companies are making headlines after the bell Monday: Read More >> Related Stocks: Clovis Oncology Inc Lululemon Athletica Magellan Health Michael Kors Holdings Navistar International Corp Nike Inc Ralph Lauren Corp Sonic Cp Under Armour VF Corp