Take a look at some of Tuesday's midday movers:
Herbalife and Nu Skin Enterprises gained after CNBC said neither company will be part of the Federal Trade Commission's enforcement actions against weight-loss companies. Both stocks dropped last week on news that the FTC was going to take action against unnamed companies Tuesday.
Pharmacyclics soared after it said its blood-cancer drug succeeded in a late-stage study. Johnson & Johnson is a partner in the venture.
Eli Lilly lost ground after the drug maker said it expects a sharp drop in both earnings and revenue in 2014.
Polaris Industries rose after Wedbush raised its price target to $173 from $150 a share on strong sales of its snow blowers.
Tesla Motors moved higher after it entered into an exclusive, multi-year wireless agreement with AT&T.
Sherwin-Williams climbed after KeyBanc upgraded the paint company to buy from hold, citing increased paint sales.
Boeing gained ground after Reuters cited industry sources in reporting Indian budget airline SpiceJet had agreed to buy around 40 Boeing 737 jets worth over $4 billion.
Microsoft rose after it said it would buy cloud-based software maker Parature.
Allergan moved higher after completing a licensing agreement with Medytox, which was previously announced in September.
Cray soared after the supercomputer company affirmed its sales guidance for 2013 and 2014. It also said it expects to post a profit for 2013.
Micron Technology gained after Roth Capital raise its price target to $25 from $21 a share.
Epizyme soared after announcing it received a combined $29 million of milestone payments from Celgene and GlaxoSmithKline regarding its cancer drug efforts for leukemia patients.
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—By CNBC's Rich Fisherman.
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