Take a look at some of Thursday's midday movers:
Facebook moved higher following comments from billionaire hedge fund investor Leon Cooperman saying that investors might be underestimating "the mobility opportunity that exists in Facebook." Cooperman also suggested that the social media company deserved a market cap more like Google's. Facebook's market cap currently about $48 billion versus Google's market cap at $237 billion.
Health Care REIT eked out a small gain in its first day of trading. The real estate investent trust priced 20 million shares at $73.50 per share.