Top Friday small-cap percentage gainers: Targacept Inc., Covenant Transportation Group Inc., Building Materials Holding Corp.
Targacept , Inc. (Nasdaq: TRGT), Covenant Transportation Group, Inc. (Nasdaq: CVTI) and Building Materials Holding Corp. (NYSE: BLG) are among the biggest percentage gainers in Friday's trading among companies with market capitalizations under $500 million.
Here are today's biggest percentage gainers:
| Price at | % | ||||||
| 1:58 et | Change | Change | Volume | Year High | Year Low |


















