Arena Pharmaceuticals (ARNA) Plunges from Highs

June 13, 2012 11:19 AM EDT
Arena Pharmaceuticals, Inc. (Nasdaq: ARNA) has just plunged from the highs of the day. Shares now up just 1 percent after trading up 10 percent earlier. Shares have been hot ahead of the June 27 PDUFA. The action is very volatile as shorts and longs position ahead of the event.


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