Monarch Casino & Resort Inc. (Nasdaq:MCRI), Kronos Worldwide Inc. (Nasdaq:KRO) and Unitil Corp. (Nasdaq:UTL) are among the biggest percentage losers in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Willis Lease (Nasdaq:WLFCP), Vanda Pharmaceuticals Inc. (Nasdaq:VNDA), Asset Acceptance Capital Corp. (Nasdaq:AACC), China Natural Resources Inc. (Nasdaq:CHNR), PC Connection, Inc. (Nasdaq:PCCC) and United Western Bancorp Inc. (Nasdaq:UWBK).

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