Benzinga's Top Pre-Market Losers

OmniVision Technologies Inc (NASDAQ: OVTI) fell 22.24% to $19.30 in the pre-market trading. OVTI issued downbeat second-quarter forecast.

Frontline Ltd (NYSE: FRO) dipped 3.24% to $6.27 in the pre-market session. FRO swung to a Q2 net loss.

Freeport-McMoRan Copper & Gold Inc (NYSE: FCX) moved down 1.03% to $43.05 in the pre-market session. Workers at FCX's Grasberg mine in Indonesia will likely strike again in coming days.

McDonald's Corporation (NYSE: MCD) lost 0.45% to $88.31 in the pre-market session. MCD's PEG ratio is 1.61.