Notable 52-Week Highs and Lows of the Day 06/22: (ONXX) (ARNA) (MRK) High; (KEG) (PGH) Low

This report is an intraday check of some of the more notable stocks that have hit a 52-week high or low so far today.

52-Week High:

• Onyx Pharmaceuticals, Inc. (Nasdaq: ONXX) high of $66.85. Onyx getting a little boost from Morgan Stanley, which upgraded shares from Underweight to Equalweight earlier. Shares have been higher since a positive FDA panel vote for carfilzomib on Wednesday, after the market closed.
  
  
• Arena Pharmaceuticals, Inc. (Nasdaq: ARNA) high of $11.99. Arena popped a little higher at the start before the selling started early. Shares were on a ten-session winning streak as traders positioned into its PDUFA date on June 27th for lorcaserin.
  
  Shortly after the start today, bears piled in and sent shares down 34 percent.
  
  
• Merck & Co. Inc. (NYSE: MRK) high of $40.31. Credit Suisse gave Merck a little nudge higher today, adding it to its "US Focus List." Shares up 2.6 percent on the session.

52-Week Low:

• Key Energy Services (NYSE: KEG) low of $7.72. Key Energy was downgraded by FBR Capital from Outperform to Market Perform earlier.
  
  The call comes after Key adjusted its second-quarter outlook Thursday morning.
  
  
• Pengrowth Energy Corp. (NYSE: PGH) low of $6.37. Pengrowth Energy got a downgrade at Raymond James today, from Outperform to Market Perform.

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