Minefinders Corp Ltd. (Nasdaq:MFN), Tessera Technologies (Nasdaq:TSRA) and Hercules Offshore Inc. (Nasdaq:HERO) are among the biggest percentage gainers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: SAVVIS Inc. (Nasdaq:SVVS), Allis-Chalmers Energy Inc. (Nasdaq:ALY), Arris Group Inc. (Nasdaq:ARRS), Meritage Homes Corp. (Nasdaq:MTH), BankAtlantic Bancorp Inc. (Nasdaq:BBX) and Boyd Gaming Corp. (Nasdaq:BYD).

Here are the biggest percentage gainers among small caps:

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