Benzinga's Top Pre-Market Gainers

Sequenom Inc (NASDAQ: SQNM) shares advanced 7.37% to $5.10 in the pre-market session. SQNM is scheduled to report its third quarter results on November 3, 2011.

Fortinet Inc (NASDAQ: FTNT) shares advanced 6.80% to $20.42 in the pre-market session. FTNT reported a 28% rise in its fiscal 3Q net income.

AK Steel Holding Corporation (NYSE: AKS) climbed 4.62% to $9.05 in the pre-market session. AKS has a dividend yield of 2.50%

Nabors Industries Ltd (NYSE: NBR) jumped 4.42% to $17.00 in the pre-market session. NBR is all set to report its Q3 earnings today.