Pre-Open Movers 4/23: (RDEA) (CEDC) (KERX) Higher; (ACHN) (K) (WMT) Lower (more...)

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

HIGHER:

• Ardea Biosciences, Inc. (Nasdaq: RDEA) 51% HIGHER; takeover by AstraZeneca
  Central European Distribution Corp. (Nasdaq: CEDC) 20% HIGHER; Strategic Alliance with Russian Standard Corporation
  
• Keryx (Nasdaq: KERX) 17% HIGHER; Reports Positive Top-Line Data from Zerenex Phase 3
  
• Amylin Pharmaceuticals, Inc. (Nasdaq: AMLN) 11% HIGHER; continued takeover chatter
  
• Groupon, Inc. (Nasdaq: GRPN) 2% HIGHER; upgraded
  
• DR Horton Inc. (NYSE: DHI) 2% HIGHER; Q2 results
  
• Xerox Corp. (NYSE: XRX) 1% LOWER; Reports In-Line Q1 EPS

LOWER:

• Achillion Pharmaceuticals, Inc. (Nasdaq: ACHN) 14% LOWER; issued data on ACH-1625 in Hepatitis C
  
• Kellogg Company (NYSE: K) 5% LOWER; lowers guidance
  
• Wal-Mart Stores Inc. (NYSE: WMT) 5% LOWER; Mexican bribery charges
  
• Hasbro Inc. (NYSE: HAS) 4% LOWER; misses Q1 views
  
• First Solar, Inc. (Nasdaq: FSLR) 4% LOWER; downgraded
  
• ConocoPhillips (NYSE: COP) 2% LOWER; misses Q1 EPS by 6c
  
• General Mills, Inc. (NYSE: GIS) 2% LOWER; down on Kellogg news
  
• Progressive Corp. (NYSE: PGR) 2% LOWR; downgraded

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