Midday movers: Post Holdings, Tyson Foods, Yelp & More By: CNBC.com News April 16, 2014 at 12:30 PM EDT Take a look at some of Wednesday's midday movers: Read More >> Related Stocks: Agnico-Eagle Mines Asml Holdings NY Reg ADR Citigroup Devon Energy Dr. Pepper Snapple Group General Motors Goldcorp Halliburton Co Hess Corp Interactive Brokers Johnson Controls King Digital Lockheed Martin Newfield Exploration PepsiCo Post Holdings Inc Regeneron Pharmaceuticals Schlumberger Ltd Sodastream Int Ltd Starbucks Corp Tyson Foods Yamana Gold Yelp Inc