Midday Movers: YNDX, HUM & More By: CNBC.com News February 19, 2013 at 12:35 PM EST Take a look at some of Tuesday's midday movers: Read More >> Related Stocks: Cigna Corp First Solar Google, Inc. Humana Red Robin Gourmet Burgers Inc Sunpower Corp UnitedHealth Group Walgreen Company Wellcare Group Yandex Ord Shs Class A