Pre-Open Movers 2/23 (VVUS) (OREX) (ONXX) Higher; (HPQ) (TSL) (LTD) Lower (more...)

Below are stocks making major moves in pre-open trading Thursday:

HIGHER:
VIVUS, Inc. (Nasdaq: VVUS) 107% HIGHER; FDA backs obesity treatment Qnexa
Onvia, Inc. ((Nasdaq: ONVI) 35% HIGHER; takeover proposal
Orexigen Therapeutics, Inc. (Nasdaq: OREX) 22% HIGHER; up in sympathy with VIVUS
Arena (Nasdaq: ARNA) 17% HIGHER; up in sympathy with VIVUS
Onyx Pharmaceuticals, Inc. (NASDAQ: ONXX) 6% HIGHER; tops Q4 EPS
Questcor Pharmacueticals, Inc. (NASDAQ: QCOR) 6% HIGHER; tops Q4 EPS
Sturm, Ruger (NYSE: RGR) 5% HIGHER; tops Q4 views
Whiting Petroleum Corp. (NYSE: WLL) 4% HIGHER; tops Q4 EPS
Lumber Liquidators (NYSE: LL) 4% HIGHER; upgraded
Level 3 Communications (Nasdaq: LVLT) 4% HIGHER; upgraded
Qihoo 360 Technology (NYSE: QIHU) 3% HIGHER; tops Q4 EPS
Aegean Marine Petroleum Network (NYSE: ANW) 3% HIGHER; tops Q4 EPS
Kellogg (NYSE: K) 1% HIGHER; upgraded

LOWER:
Genco Shipping & Trading Limited (NYSE: GNK) 14% LOWER; stock offering
Polypore International (NYSE: PPO) 11% LOWER; misses Q4 EPS
HomeAway (NASDAQ: AWAY) 10% LOWER; misses Q4 EPS
Mecox Lane Limited (NASDAQ: MCOX) 9% LOWER; Q4 results
Trina Solar (NYSE: TSL) 8% LOWER; large Q4 loss
Hewlett-Packard (NYSE: HPQ) 5% LOWER; weak Q1 results, guidance
Kohls Corp. (NYSE: KSS) 3% LOWER; Q4 results
Limited Brands, Inc. (NYSE: LTD) 2% LOWER; Q4 results
Prospect Capital Corporation (NASDAQ: PSEC) 2% LOWER; stock offering
Ryland Group (NYSE: RYL) 2% LOWER; downgraded
Westport Innovations (Nasdaq: WPRT) 2% LOWER; downgraded
Juniper Networks (Nasdaq: JNPR) 2% LOWER; downgraded
Analog Devices, Inc. (NYSE: ADI) 1% LOWER; misses Q4 EPS

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