Benzinga's Top Pre-Market Losers

Mattress Firm Holding MFRM shares fell 22.49% to $23.50 in the pre-market trading. Mattress Firm lowered its adjusted earnings view for the full year. Pandora Media P shares dropped 17.99% to $7.75 in pre-market trading. Pandora issued downbeat forecast for fourth quarter and fiscal 2013. Freeport-McMoRan Copper & Gold FCX dipped 8.59% to $34.99 in the pre-market session. Freeport-McMoRan Copper is considering to buy McMoRan Exploration MMR and a large oil and gas company, according to The Financial Times. CBRE Group CBG dipped 3.61% to $17.90 in the pre-market session. CBRE Group's trailing-twelve-month profit margin is 3.55%.