Take a look at some of Thursday's midday movers:
Dillard's soaring on news that Marcato Capital Management is calling for a REIT spin off of the department store chain, with expectations of a 75 percent gain for current stock prices. Marcato owns a 4.9 percent stake in Dillard's.
Dollar Tree moved higher after the discount retailer reported its strongest growth in quarterly same-store sales since 2011.
GoPro fell after the active sports camera maker priced its secondary offering at $75 a share, a 5 percent discount from yesterday's close. About 10.4 million shares will be offered.
Apple gained ground after Piper Jaffray, Evercore and Morgan Stanley increased their price target on the stock.
Alibaba moved higher after Dow Jones reported the Chinese e-commerce company could increase the amount of a debut bond deal to about $10 billion on strong demand.
Valeant Pharmaceuticals climbed after announcing a plan to spend $2 billion to repurchase securities and debt.
Habit doubled in price in its market debut after 5 million shares were priced at $18. Habit is a fast food restaurant chain known for its Charburgers.
Yum! Brands rose after Janney Capital upgraded the stock to buy from neutral and raised its price target to $88 from $68. The firm made a value call saying the brunt of its issues with meat safety in China has subsided.
Mobileye fell despite reporting third-quarter earnings that met street forecasts on a better-than-expected 70 percent jump in sales.
Jinko Solar moved lower after the China-based firm reported lower-than-expected quarterly revenue, hurt by a fall in the average selling price of solar modules.
iRobot gained ground after Canaccord began coverage with a buy rating.
Energy the best performing sector in the S&P 500, led by Nabors, QEP Resources, Chesapeake Energy and Newfield Exploration.
Home builders Lennar, Toll Brothers, Pulte, KB Homes and Beazer Homes all moved higher as existing home sales hit a one-year high in October.