Koss Corp. (Nasdaq:KOSS), Xyratex Ltd. (Nasdaq:XRTX) and Poniard Pharmaceuticals Inc. (Nasdaq:PARD) are among the biggest percentage gainers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Audiovox Corp. (Nasdaq:VOXX), Zep Inc. (Nasdaq:ZEP), Mentor Graphics Corp. (Nasdaq:MENT), IncrediMail Ltd (Nasdaq:MAIL), PAM Transportation Services Inc. (Nasdaq:PTSI) and Buckeye Technologies Inc. (Nasdaq:BKI).

For access to the full article, you must be a registered member - it's FREE.