Pre-Open Movers 5/2: (SMSC) (CHRS) (PLX) Higher; (OPEN) (RATE) (CHK) Lower (more...)

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

HIGHER:

• Standard Microsystems Corp. (Nasdaq: SMSC) 38% HIGHER; acquired by Microchip (Nasdaq: MCHP)
  
• Charming Shoppes (Nasdaq: CHRS) 24% HIGHER; acquired by Ascena Retail Group (Nasdaq: ASNA).
  
• Protalix (NYSE: PLX) 24% HIGHER; The FDA approved the company's Gaucher Disease drug Elelyso.
  
• Tripadvisor (NASDAQ: TRIP) 17% HIGHER; strong Q1
  
• EasyLink (Nasdaq: ESIC) 13% HIGHER; being acquired by Open Text for C$7.25/share in cash.
  
• True Religion Apparel, Inc. (NASDAQ: TRLG) 10% HIGHER; tops Q1 views
  
• American Eagle (NYSE: AEO) 9% HIGHER; raises guidance
  
• Thoratec Corp. (NASDAQ: THOR) 8% HIGHER; tops Q1 views
  
• Reachlocal, Inc. (NASDAQ: RLOC) 6% HIGHER; tops Q1 views
  
• Formfactor, Inc. (NASDAQ: FORM) 6% HIGHER; tops Q1 views
  
• OCZ Technology Group, Inc. (NASDAQ: OCZ) 5% HIGHER; Q4 results
  
• Genworth (NYSE: GNW) 5% HIGHER; Chairman, CEO Fraizer resigns. Reported Q1 EPS
  
• CBS (NYSE: CBS) 4% HIGHER; tops Q1 views
  
• Herbalife Ltd.(NYSE: HLF) 3% HIGHER; bounces after sell-of on negative Einhorn comments
  
• Luxottica Group (NYSE: LUX) 2% HIGHER; upgraded
  
• Wynn Resorts (Nasdaq: WYNN) 1% HIGHER; Formal Gazette Approval for Cotai Development

LOWER:

• Open Table, Inc. (NASDAQ: OPEN) 14% LOWER; Q1 results, with sales below views
  
• Bankrate (NYSE: RATE) 13% LOWER; misses Q1 vies
  
• Ubiquiti Ntwrks (NASDAQ: UBNT) 9% LOWER; Q3 results
  
• Chesapeake Energy Corp. (NYSE: CHK) 8% LOWER; misses Q1 views
  
• Bio-Rad Laboratories Inc. (NYSE: BIO) 5% LOWER; misses Q1 views
  
• Peet's Coffee & Tea, Inc. (NASDAQ: PEET) 5% LOWER; misses Q1 views
  
• Virgin Media (Nasdaq: VMED) 3% LOWER; downgraded
  
• RadioShack (NYSE: RSH) 2% LOWER; downgraded
  
• Comcast (NASDAQ: CMCSA) 1% LOWER; posts Q1 results

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