Comcast, McDonald’s, Yum, AT&T are stocks to watch By: MarketWatch April 21, 2014 at 17:02 PM EDT Among the companies whose shares are expected to see active trade in Tuesday’s session are Comcast, McDonald’s, Yum Brands, and AT&T. Read More >> Related Stocks: AT&T Inc Amgen Comcast Corp Gilead Sciences Intuitive Surgical Lockheed Martin McDonald's Corp Netflix United Technologies Yum Brands