Firstbank Corp. (Nasdaq:FBMI), Methanex Corp. (Nasdaq:MEOH) and Patriot Coal Corp. (Nasdaq:PCX) are among the biggest percentage gainers in Monday's trading among companies with market capitalizations under $1 billion.

Also included among the results: GT Solar International Inc. (Nasdaq:SOLR), Miller Industries Inc. (Nasdaq:MLR), Central Pacific Financial Corp. (Nasdaq:CPF), Union Bankshares Inc. (Nasdaq:UNB), Ashland Inc. (Nasdaq:ASH) and Hill International Inc. (Nasdaq:HIL).

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