U.S. HOT STOCK FUTURES: HOT STOCKS TO WATCH

Among the companies with shares expected to actively trade in Thursday's session are CombiMatrix Corp. (CBMX), Merrimack Pharmaceuticals Inc. (MACK) and Compuware Corp. (CPWR).

CombiMatrix said billable prenatal-testing volumes more than doubled in the first quarter from a year earlier, and the genetic-based testing company said it plans to expand its offerings to capture market share in the rapidly growing market. Shares soared 27% to $4.40 premarket.

Merrimack said one cohort of a Phase 2 nonsmall cell lung cancer study didn't meet its primary endpoint. Shares fell 7.4% to $5.75 premarket.

Compuware said it expects its full-year and fiscal fourth-quarter results to miss prior expectations as many clients couldn't finalize budgets and postponed deals into the new fiscal year. Shares were off 2.7% to $11.70 premarket.

CapLease Inc. (LSE) said it plans to offer 6.5 million shares, sending the real-estate investment trust's shares down 3.1% to $5.96 premarket. The company had 75.9 million shares outstanding as of Feb. 15.

Navidea Biopharmaceuticals Inc. (NAVB) said Lymphoseek met its primary endpoint in identification of sentinel lymph nodes in a Phase 3 clinical trial of the cancer-seeking agent. Shares rose 8.2% to $2.76 premarket.

Specialty pharmaceutical company pSivida Corp. (PSDV) said it signed a funded technology evaluation agreement with a leading global pharmaceutical company, while will evaluate pSivida's proprietary Durasert and Tethadur technologies for this pharmaceutical company's select products in ophthalmology. Shares rose 11% to $2.50 premarket.

 
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Greenbrier Cos.'s (GBX) fiscal second-quarter earnings fell 22% as new railcar deliveries continued to decline. The company supplies railroad equipment and services.

Healthcare Services Group Inc. (HCSG) said the retroactive reinstatement of a tax-credit program will boost its earnings for the first quarter.

Lululemon Athletica inc. (LULU, LLL.T) said its chief product officer Sheree Waterson will leave the company, as the clothing retailer addresses quality problems after pulling some of its yoga pants from the shelves last month for being too see-through.

Mitcham Industries Inc.'s (MIND) fiscal fourth-quarter earnings fell 66% as the seismic-equipment supplier's equipment-leasing revenue continued to slump. Results missed analyst expectations.

Pfizer Inc. (PFE) recalled about 52,000 bottles of thyroid-disease treatment Levoxyl because of complaints of uncharacteristic odors in some bottles.

RPM International Inc. (RPM) swung to a fiscal third-quarter loss as the specialty-chemical company was hit by charges related to a Department of Justice investigation and a business closure. However, core earnings rose as revenue climbed, sending results above Street estimates.

Write to Anna Prior at [e-mail]

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