What's better than momentum? Mo' momentum.

Let's take a closer look at five of this past week's biggest scorchers.

Company

August 3 Weekly Gain My Watchlist
Genco Shipping (NYSE: GNK) $3.73 59% Add
Blue Nile (Nasdaq: NILE) $32.00 34% Add
United Online (Nasdaq: UNTD) $5.12 20% Add
Green Mountain Coffee Roasters (Nasdaq: GMCR) $21.63 20% Add
Yelp (NYSE: YELP) $23.40 20% Add

Source: Barron's.

Genco Shipping & Trading soared after revealing that creditors were relaxing some of the debt-laden dry-bulk shipper's loan provisions.

Blue Nile got its bling on after the online jeweler posted a 13% pop in net sales and reaffirmed its earlier outlook for all of 2012. Maintaining one's outlook may not seem to be a positive development, but it is in Blue Nile's case since Wall Street was banking on the upscale jeweler that specializes in engagement rings to hose down its guidance.

United Online connected with investors after posting better-than-expected quarterly results. The provider of value-priced Internet connectivity also revealed plans to spin off its FTD subsidiary to unlock the company's value.

Green Mountain Coffee Roasters delivered caffeinated gains after cranking out quarterly results that weren't as bad as extreme worrywarts feared. The company behind the Keurig single-cup brewing platform may have lowered its guidance, but the refreshed outlook still calls for double-digit top- and bottom-line growth.

Finally, we have Yelp collecting rave shareholder reviews after posting a narrower deficit than analysts were targeting. The restaurant reviews website also offered up encouraging near-term guidance.

More winners for you
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Longtime Fool contributor Rick Munarriz calls them as he sees them. He does not own shares in any of the stocks in this story, except for Green Mountain. Rick is also part of the Rule Breakers newsletter research team, seeking out tomorrow's ultimate growth stocks a day early.

The Motley Fool owns shares of Green Mountain Coffee Roasters. Motley Fool newsletter services have recommended buying shares of Green Mountain Coffee Roasters and Blue Nile. Motley Fool newsletter services have recommended creating a lurking gator position in Green Mountain Coffee Roasters. Motley Fool newsletter services have recommended creating a position in Blue Nile. The Motley Fool has a disclosure policy. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. Try any of our Foolish newsletter services free for 30 days.