Every day the sun rises on Wall Street and a plethora of professional analysts wake to issue new opinions on stocks. Here at the Fool, we examine some of these picks -- and the track record of the firm behind them -- so individuals can make better investing decisions.

In addition to following professional banks, anyone can use Motley Fool CAPS to monitor the collective opinions of more than 94,000 investors -- many of whom actually demonstrate better investing insight than published analysts.

In the case of XM Satellite Radio (Nasdaq: XMSR), enough CAPS investors have recently turned bullish on the stock to upgrade it from a bottom-dwelling one-star rank to two stars. For some of the obvious -- and not so obvious -- reasoning behind the new optimism, we can tap the various resources of CAPS.

Obviously, a lot of investors were still on the fence while the merger with Sirius (Nasdaq: SIRI) was still pending, so the recent news that the U.S. Department of Justice (DOJ) doesn't oppose the two becoming one gave the stock new hope. Many investors think that combining the unique content delivered on both services will simplify consumer choice and compel more old-school radio listeners up to the satellite platform.

There are plenty of reasons why the merged satellite radio kings may still fail, however, including competing for the ears of consumers in an era where cars are increasingly coming stocked with adapters for Apple (Nasdaq: AAPL) iPods. Microsoft (Nasdaq: MSFT) and Ford (NYSE: F) are also opening new doors with the voice-controlled Sync system that will undoubtedly push GM (NYSE: GM) and even aftermarket equipment makers to answer with more automotive "infotainment" alternatives.

Still, plenty of investors think that two investing wrongs won't make a right; that leaves XM at its subpar two-star rating, with nearly 40% of its 1,356 CAPS investors still bearish.

To see what the very best CAPS analysts are saying now about XM and Sirius -- as well as other winning stocks they are picking -- head on over to CAPS and have a look. The community research and resources in CAPS are totally free, unlike analyst opinions reserved for only paying clients.

More Foolishness:

Apple was recently recommended by the Motley Fool Stock Advisor. To see what other winning stocks Tom and David Gardner are picking today, take a free 30-day trial.

Fool contributor Dave Mock recently upgraded his car with a poor-man's MP3 audio solution. He owns no shares of companies mentioned here and is the author of The Qualcomm Equation. Apple is a Stock Advisor recommendation. Microsoft is an Inside Value recommendation. The Fool's disclosure policy is satellite capable, but has a terrestrial backup, just in case.