Take a look at some of Tuesday's midday movers:
Best Buy fell following Monday's rally on news that founder Richard Schultze will rejoin the retailer as Chairman Emeritus.
Sonic hit a 52-week high after the restaurant chain's fiscal second-quarter earnings surged, helped by a drop in expenses including packaging costs and benefits.
RF Micro Devices traded higher after an upgrade to "outperform" from "perform" by Oppenheimer.
Warren Buffett could become one of Goldman Sachs' ten largest shareholders after the two parties amended terms of warrants used in the 2008 deal that helped rescue the bank. Berkshire Hathaway shares were slightly higher, while Goldman Sachs dipped.
—By CNBC's Lori Spechler
Questions? Comments? Email us at email@example.com