Geron Corp. (Nasdaq:GERN), Tempur Pedic International Inc. (Nasdaq:TPX) and Forestar Group Corp.(Nasdaq:FOR) are among the biggest percentage gainers in Friday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Canadian Solar Inc. (Nasdaq:CSIQ), Heartland Payment Systems Inc. (Nasdaq:HPY), Targa Resources Partners LP (Nasdaq:NGLS), Ezcorp Inc. (Nasdaq:EZPW), Agree Realty Corp. (Nasdaq:ADC) and DivX Inc.(Nasdaq:DIVX).

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