The top pre-market NASDAQ stock market gainers are: China GrenTech, Dendreon, Geron, A123 Systems, TiVo, Foster Wheeler, DryShips, Approach Resources, and Hudson City Bancorp.

China GrenTech Corp. Ltd. (GRRF) surged 24.16 percent to $3.70 in the pre-market trading. The company's third quarter earnings were $1.93 million or $0.08 per ADS on revenue of $59.3 million.

Dendreon Corp. (DNDN) soared 5.23 percent to $36.65 in the pre-market trading. The company said it has submitted post-approval supplement to the Provenge Biologics License Application for the Morris Plains, New Jersey manufacturing facility.

Geron Corp. (GERN) jumped 5.17 percent to $6.10 in the pre-market trading. The company announced two publications of preclinical data demonstrating that its telomerase inhibitor drug targets cancer stem cells from multiple myeloma, pancreatic and breast cancers.

A123 Systems, Inc. (AONE) grew 2.23 percent to $8.70 in the pre-market trading.

TiVo Inc. (TIVO) improved 2.20 percent to $9.74 in the pre-market session.

Foster Wheeler AG (FWLT) increased 1.47 percent to $29.02 in the pre-market session.

DryShips, Inc. (DRYS) rose 1.26 percent to $5.21 in the pre-market trading. The company said its unit Ocean Rig UDW Inc. got a Letter of Intent for the Eirik Raude from a British exploration company. The Letter of Intent is for a two well contract for exploration drilling offshore the Falkland Islands for a period of about 90 days, starting in the fourth quarter of 2011. The contract value is around $77 million.

Approach Resources, Inc. (AREX) gained 0.36 percent to $16.65 in the pre-market session. The company said it has increased the size of underwritten public offering to 5.75 million from 5 million common shares and has priced the offering at $16.25 a share. The company expects to issue and deliver the shares on Nov. 17.

Approach Resources plans to use the net proceeds from the offering to fund the development of its Wolffork oil resource play, for potential acquisitions of oil and gas leases and other properties in its core areas of operations and for general working capital needs.

Hudson City Bancorp, Inc. (HCBK) moved up 0.34 percent to $11.77 in the pre-market trading.

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