3 Stocks Shaking the Market

Some stocks are one-hit wonders, making a big splash when they first appear, then quickly fizzling into obscurity or oblivion. But for other stocks, that initial big move is only a preview of even bigger and better gains to come.

Today, we've listed three stocks that made some of the biggest upward moves over the past month. We then paired them with the ratings issued by our Motley Fool CAPS community. The higher each stock's rating, the greater CAPS members' faith in that company's ability to keep on beating the market.

^ June 25 to July 26.

Let's see why the CAPS community thinks these companies might continue to outperform the market.

A mighty temblor
It was a momentous occasion for Momenta Pharmaceuticals as the FDA approved its generic version of Lovenox, the blood thinner made by sanofi-aventis and used to prevent deep vein thrombosis in patients confined to bed.

While the drugmaker's stock soared 70% on the announcement, this might not be the typical market overreaction followed by plummeting shares. Lovenox owns a lucrative market niche, valued at more than $2 billion at current exchange rates. With Momenta's commercialization partner Novartis (NYSE: NVS) ready to kick production into gear, it has the opportunity to reap a large portion of those revenues for itself.

Generic-drug manufacturer Teva Pharmaceutical (Nasdaq: TEVA) hasn't received approval for its own version yet, so Momenta has momentum on its side. It also has additional drugs in its pipeline, which CAPS All-Star member TMFBreakerJava says makes it undervalued even at this elevated price:

The breakthrough has finally ocurred. Momenta's technology has passed muster with the FDA which has approved their generic Lovenox. This is just the beginning for their proprietary technology for characterizing and duplicating complex biologicals. They will become an important generic drug producer and folks who buy today will be glad they did, even after today's 81% jump

A speedy opportunity
China's Solarfun Power put on an awesome display of financial pyrotechnics last week by announcing access to lines of credit that far exceeded its market cap. It secured an $885 million credit line and a $1 billion "framework" credit facility from the Bank of Shanghai. It's also doubling cell capacity and putting in place an even larger increase in module capacity.

An additional fireworks show may come next week when Solarfun reports earnings. It has a large exposure to the euro, with more than 70% of net revenues in 2009 coming from just Germany. While the currency got beat up as concerns over the eurozone's financial stability heated up, it's risen almost 10% from its June low.

Analysts expect Solarfun's earnings to swing from a large loss last year to a decent profit this quarter, about as good as Yingli Green Energy (NYSE: YGE) and Canadian Solar, but far better than First Solar (Nasdaq: FSLR) or Suntech Power.

CAPS member Geofiz finds Solarfun well ahead of the competition in being able to reach the all-important goal of price parity:

[Solarfun] is one of the most efficient solar producers in the business, meaning they can be expected to reach the crucial price parity sooner than most. Solar is coming in a big way, the only question is when. Recent share price drop makes [Solarfun] a relative bargain.

No laughing matter
Although trucking giant YRC Worldwide almost ran off the road into bankruptcy last year, it appears management gained control of the wheel and is again putting rubber to the roadway. Or maybe not. It's still dangerously burning through cash and has been getting the benefit of not investing in its business. Sure, a company skidding out of control needs to apply the brakes somewhere, but that can skew its financial picture, making it look healthier than it might otherwise be.

The trucker has been flying under the radar of much of Wall Street, but the CAPS community is taking a closer look at YRC and likes what it sees. Yet investors might want to wait awhile before climbing in the cab. Let the trucking company put some mileage past its problems and show a couple of consecutive quarters of real improvements to its financial statements before hitching a ride.

Let us know on the YRC Worldwide CAPS page whether this big rig can keep on trucking.

Shake, rattle, and roll
With these stocks shaking the market this past month it pays to start your own research on them at Motley Fool CAPS. Read a company's financial reports, scrutinize key data and charts, and examine the comments your fellow investors have made, all from a stock's CAPS page.