Ticker: SCLD

Friday's close: $2.72

Week's change: +5.4%

The Herndon company, which provides computer-security equipment and services, earned $368,000 in its second quarter ended April 30, up from a loss of $316,000 in the same period a year earlier. The company credited strong server product sales.

Cogent Communications Group

Ticker: COI

Friday's close: $6.68

Week's change: -70%

Shares of the District company, which sells high-speed Internet service to small- and medium-size businesses, fell after it announced plans to sell 10 million shares of stock for $6 apiece, far below its recent market price of about $10 a share. The company makes available 1 percent of its stock for public trading.

Harman International Industries

Ticker: HAR

Friday's close: $89.37

Week's change: +7.1%

The District audio equipment supplier announced new contracts with auto manufacturers Chrysler and Audi.

American Woodmark

Ticker: AMWD

Friday's close: $28.98

Week's change: -14.7%

The Winchester maker of kitchen cabinets and bath vanities said profit in its fiscal fourth quarter ended April 30 declined 11 percent to $7.5 million because of high lumber, hardware and transportation costs.