Riverbed has been finding price support at its 10-week average, along with some heavy-volume buying lately.

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F5 Networks ( FFIV) is also getting support above its 10-week line, and has shown some heavy-volume buying in recent days.

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In contrasting these sites with Groupon, we can learn a thing or two from the group buying heavy-weight.

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The list of heavy-weight retailers launching group buying is growing and growing.

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The Monday after Mahathir spoke, it took heavy buying by state-run investment funds -- and deft explaining by Deputy Premier and Finance Minister Anwar Ibrahim -- to keep the Kuala Lumpur market afloat.

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Early safe-haven buying gave way to heavy selling pressure that was due to strong gains in the U.S. dollar index, sharp losses in crude oil and other commodity markets, profit-taking pressure and weak-handed long liquidation.

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Despite hitting a five-month low recently, its current price-earning multiple is still too rich for heavy buying, says Chiew.

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Lo appreciated how much fun Heejun brought to a ballad-heavy night, but Steven just wasn't buying it at all.

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