Vivus, Exide Technologies and GigaMedia lead small-cap volume in pre-market

Vivus Inc. (Nasdaq:VVUS), Exide Technologies (Nasdaq:XIDE) and GigaMedia Ltd. (Nasdaq:GIGM) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $1 billion.

Also included among the results: Omniture Inc (Nasdaq:OMTR), Federal Mogul Corp. (Nasdaq:FDML), Solarfun Power Holdings Co Ltd. (Nasdaq:SOLF), Ceradyne Inc. (Nasdaq:CRDN), STEC Inc. (Nasdaq:STEC) and SunPower (Nasdaq:SPWRA).

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