Financial Institutions, AAR and Zygo lead small-cap percentage gainers

Financial Institutions Inc. (Nasdaq:FISI), AAR Corp. (Nasdaq:AIR) and Zygo Corp. (Nasdaq:ZIGO) are among the biggest percentage gainers in Wednesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Somanetics Corp. (Nasdaq:SMTS), Green Bankshares Inc. (Nasdaq:GRNB), Hawk Corp (Nasdaq:HWK), Momenta Pharmaceuticals Inc. (Nasdaq:MNTA), Cheesecake Factory Inc. (Nasdaq:CAKE) and Princeton National Bancorp Inc. (Nasdaq:PNBC).

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