What's better than momentum? Mo' momentum. Let's take a closer look at five of this past week's biggest scorchers.

Company

Dec. 14

Weekly Gain

My Watchlist

Clearwire

$3.37

41%

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Celldex Therapeutics

$6.70

21%

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Alpha Natural Resources

$9.68

17%

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Solazyme

$8.60

17%

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ZAGG

$7.80

12%

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Source: Barron's.

Clearwire soared after Sprint Nextel , Clearwire's biggest customer and stakeholder, proposed a $2.1 billion deal to swallow its WiMAX network partner whole.


Celldex Therapeutics climbed after releasing encouraging phase 2 clinical trial data for its promising drug candidate as a treatment for breast cancer.

Alpha Natural Resources is one of the country's largest coal producers. This has been a difficult sector over the past year, and Alpha Natural Resources has been one of the market's biggest laggards in that time. However, coal stocks have been bouncing back since taking a hit after last month's presidential election. Investors are starting to get encouraged by the overseas prospects of domestic coal producers as exporters.

Solazyme got moving after the biofuel maker achieved commercial-scale production at a new Iowa facility. The biofuel production is four times greater than it has achieved at its Illinois plant.

ZAGG, the company behind the popular invisibleSHIELD screen protectors for smartphones and tablets and other third-party accessory products, posted a double-digit percentage gain after refinancing its debt and approving a small share repurchase plan.

More winners for you
It was a great week for these five stocks. If you want to get an early read on some of tomorrow's major gainers there's a special report on three hidden winners in a booming industry. The report is free, like this article, but it won't be around forever, so click here to check it out now.

The article 5 of Last Week's Biggest Winners originally appeared on Fool.com.

Longtime Fool contributor Rick Aristotle Munarriz has no positions in the stocks mentioned above. The Motley Fool owns shares of Solazyme. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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