Stocks climbing to 10 times their original price are rare breeds -- but they're not impossible to find. Especially when you have Fools for friends.

The market's best stocks include companies that have risen dozens of times in value by taking advantage of the market's weaknesses. These aren't penny stocks; they're viable companies with sound business prospects, achieving phenomenal returns. Finding just one or two of these monstrously successful firms can help you establish a winning portfolio.

Stalking the monster
To find tomorrow's winners, we've enlisted the help of more than 160,000 monster trackers at Motley Fool CAPS. We've compiled a list of the most successful CAPS members, dubbed All-Stars, whose picks have doubled, tripled, or even quadrupled in price. Then we've plucked out some of their recent picks for stocks they find equally promising.

Player

CAPS Member Rating

Monster Stock

CAPS Score

Recent Stock Pick

CAPS Rating (out of 5)

Vavoom11

99.89

Seagate Technology

136.40

Akamai Technologies (Nasdaq: AKAM)

*****

jlmjlm77

99.78

Nova Chemicals

215.96

Yamana Gold (NYSE: AUY)

***

myked

98.75

Oshkosh (NYSE: OSK)

303.75

NVIDIA (Nasdaq: NVDA)

****

JASCruz

97.06

Ford (NYSE: F)

413.98

First Solar

****

townsend33

99.30

Dupont Fabros Tech

570.79

Sprint Nextel (NYSE: S)

**

Score = By how many percentage points that pick is beating the S&P 500.

Of course, this is not a list of stocks to buy -- or, for those monster stocks that our CAPS All-Stars have already found, to sell. Just consider them starting points for your own further research of extreme buying opportunities.

In search of Bigfoot
While 78% of the more than 1,900 CAPS members rating Sprint Nextel believe it will outperform the broad market averages, the wireless carrier just suffered yet another setback. It's losing a contract with Time Warner Cable (NYSE: TWC) that contributes as much as $250 million in annual profits.

The contract's phase-out isn't scheduled to begin until next year, but one analyst expects Sprint to lose 775,000 contract customers in just the first quarter this year. Pricing pressures will continue to hurt its ability to maintain customers who pay for service on a month-to-month basis.

CAPS member LuckyRice admits Sprint Nextel has its back against the wall, but says the reorganization it has undertaken, and the new features it offers, still make it a contender:

Sprint is currently a beaten down stock and has reorganized its workforce and product-line to better compete with its competition with ATT and VZW. The 4G WiMax is definitely Sprint's ticket to another potential 120 Million new clients. Also, with the new Palm and advanced Android devices look to see more subscribers line up for their awesome new plans that allow their customers to call anyone on any network for free. No other network offers that and their Boost Mobile offer $50 a month no contract unlimted everything. Now, the customer knows better. They will always go for whatever is the best value for their needs and with budgets tight this year, expect more people to gravitate toward Sprint.

A glittering opportunity still?
Dueling Fools Christopher Barker and Toby Shute have had very different opinions about gold miner Yamana Gold. Both, however, have found ways to make money on the stock. Chris thinks the miner's one yawanna keep in your portfolio -- and has for some time now -- while Toby has held his nose and used options to realize profits when the stock was beaten down.

With more than 3,500 CAPS members rating the company to outperform the market, Christopher and Toby are obviously not alone. You can dig in with your own opinion on the Yamana Gold CAPS page.

A graphic example
Chipmaker NVIDIA might just present another golden opportunity for investors waiting to pounce. A supply deficit for graphics chips has the given the company a chance to really amp up profits. At least one analyst suggests that NVIDIA's ability to double revenue last quarter is a sign that it's about to take off.  With the stock down around 8% year to date, dsaryan says a new product offering is just what it needs for a quick boost.

NVIDIA has a large following on CAPS (more than 4,700 members have rated it, with 96% saying it will outperform), but you can game the chipmaker, too, by heading to the NVIDIA CAPS page and giving us your opinion.

A chance for scary growth
It takes more than a few All-Star picks and a quick paragraph to make buy or sell decisions, so start your own research on these stocks on Motley Fool CAPS. You can 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. While you're there, weigh in with your own thoughts on whether you think these are tomorrow's monster stocks.

Sprint Nextel is a Motley Fool Inside Value pick. Akamai Technologies and First Solar are Motley Fool Rule Breakers selections. Ford Motor and NVIDIA are Motley Fool Stock Advisor recommendations. Try any of our Foolish newsletter services  free for 30 days.

Fool contributor Rich Duprey does not have a financial position in any of the stocks mentioned in this article. You can see his holdings here. The Motley Fool has a disclosure policy.