Cerus (CERS - Get Report) was one of the best performers of Friday's session. After the previous close, the biotech company said it swung to a fourth-quarter profit that easily beat Wall Street's estimates. Cerus was recently up 33 cents, or 5.8%, to $6.07.
Telik (TELK) was also higher after the company late Thursday posted a narrower-than-expected fourth-quarter loss. The stock was rising 38 cents, or 7%, to $5.85.
On the other hand, Gene Logic (GLGC) slid 4.2% to $1.82 after the company said it may spin off its genomics division, which was once the company's core business.