Benzinga's Top Pre-Market Losers

Meadwestvaco Corporation (NYSE: MWV) moved down 7.84% to $28.46 in the pre-market session. MWV's trailing-twelve-month profit margin is 4.06%.

Leap Wireless International Inc (NASDAQ: LEAP) shares fell 5.21% to $10 in the pre-market trading. Leap Wireless reported that its 2012 annual meeting of stockholders is scheduled to be held on May 17.

Zynga Inc (NASDAQ: ZNGA) dipped 3.00% to $14.25 in the pre-market session. Analysts at JP Morgan downgraded Zynga from “overweight” to “neutral.”

CF Industries Holdings Inc (NYSE: CF) dipped 2.53% to $183.49 in the pre-market session. Analysts at Citigroup downgraded CF Industries from “buy” to “neutral.”

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