Sadly, there's no such thing as an ultimate buy signal when it comes to investing in stocks. Identifying companies with the wind at their back takes time, patience, and a good dose of due diligence.

There is, however, an easy way to increase your odds of finding the stocks that will beat the market. At Motley Fool CAPS, the Fool's 110,000-member (and growing!) investing community, we've found that five-star stocks, as a group, substantially outperform the broader market -- to the tune of 12 percentage points on an annualized basis from November 2006 to July 2008.

In order to fully capture the upside potential of those five-star stocks, it makes sense to identify them just as soon as they achieve five-star status. Fortunately, our CAPS screener now makes it possible to do this. Below, for example, is a list of companies that have recently been upgraded to five-star stocks. These stock ideas are only a starting point, of course. Be sure to join us on CAPS to dig in even further.

Company

All-Stars Saying Outperform

BE Aerospace (NASDAQ:BEAV)

173 / 178

Duke Energy (NYSE:DUK)

323 / 338

Fuel Tech (NASDAQ:FTEK)

228 / 237

Medtronic (NYSE:MDT)

273 / 282

Nasdaq OMX (NASDAQ:NDAQ)

145 / 147

Omniture (NASDAQ:OMTR)

182 / 189

Xinyan Real Estate (NYSE:XIN)

40 / 42

Data from Motley Fool CAPS, Aug. 7, 2008.

Come join us on CAPS to learn more about these and countless other interesting stock ideas. Click here for a free sign-up.

Ilan Moscovitz doesn’t own shares of any companies mentioned in this article. Duke Energy is an Income Investor recommendation. Nasdaq OMX is an Inside Value pick. Omniture is a Stock Advisor pick. You can learn more about The Motley Fool’s disclosure policy here.