Take a look at some of Thursday's midday movers:
Sempra Energy (SRE) was the worst performer on the S&P 500 after the energy company lowered the top end of its guidance for 2013 and offered a weak outlook for 2014.
Shares of software game maker Electronic Arts trended higher. A Morningstar analyst suggested that improved functionality of Microsoft's Xbox One may benefit makers of sports games. Stifel Nicolaus raised its price target on Electronic Arts to $26 from $22.