Lululemon Athletica Inc. (Nasdaq:LULU), Pain Therapeutics Inc. (Nasdaq:PTIE) and Integral System Inc. (Nasdaq:ISYS) are among the biggest percentage losers in Thursday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Ciena Corp. (Nasdaq:CIEN), Tempur Pedic. International Inc. (Nasdaq:TPX), Merchants Bancshares Inc. (Nasdaq:MBVT), Digi International Inc. (Nasdaq:DGII), Aceto Corp. (Nasdaq:ACET) and American Greetings Corp. (Nasdaq:AM).

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