Energy Focus, Inc. (Nasdaq: EFOI) climbed 10.3 percent to $1.18 Wednesday afternoon. Volume of 396,108 shares proved four times its full-day average. Solon, Ohio-based EFOI is a leader in providing energy efficient lighting solutions.

Sprint Nextel Corporation (NYSE: S) dealt in 50,848,950 shares, catching up to its full-day average of 54,200,200. Prices for S went south, though, 2.1 percent to $4.27, on word the company will announce fourth-quarter and full-year financial numbers on Feb. 10.

The PMI Group, Inc. (NYSE: PMI) skidded 17.4 percent Wednesday to $3.30. Volume was 13,608,639 shares was nearly triple its average daily volume. Through its wholly and partially owned subsidiaries, PMI offers residential mortgage insurance and credit enhancement products.