Dynamic Materials Corp (Nasdaq:BOOM), Virnetx Holdings Corp (Nasdaq:VHC), Solarfun Power Holdings (Nasdaq:SOLF) and Mentor Graphics Corp (Nasdaq:MENT) are among the biggest percentage losers in Friday’s trading among companies with market capitalizations under $1 billion.

 

Also included among the results: Pre Paid Legal Services Inc (Nasdaq:PPD), Libbey Inc (Nasdaq:LBY), Arcsight Inc (Nasdaq:ARST), Medivation Inc (Nasdaq:MDVN) and Energy Recovery Inc (Nasdaq:ERII).