Fuel Systems Solutions Inc. (Nasdaq:FSYS), athenahealth Inc. (Nasdaq:ATHN) and Allos Therapeutics Inc. (Nasdaq:ALTH) are among the most actively traded companies in Monday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Rambus Inc. (Nasdaq:RMBS), Elbit Imaging Ltd. (Nasdaq:EMITF), Liberty Media Corp. (Nasdaq:LCAPA), Zoltek Companies Inc. (Nasdaq:ZOLT), Papa Johns International Inc. (Nasdaq:PZZA) and Papa Johns International Inc. (Nasdaq:PZZA).

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