Based on the aggregated intelligence of 180,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, online professional network operator LinkedIn (NYSE: LNKD) has received the dreaded one-star ranking.

With that in mind, let's take a closer look at LinkedIn's business and see what CAPS investors are saying about the stock right now.

LinkedIn facts

Headquarters (founded) Mountain View, Calif. (2002)
Market Cap $10.5 billion
Industry Internet information providers
Trailing-12-Month Revenue $616.7 million
Management Co-founder/Chairman Reid Hoffman
CEO Jeffrey Weiner
Trailing-12-Month Return on Equity 3.7%
Cash/Debt $620.8 million / $0
Competitors Facebook
Jigsaw Data Corp.
Monster Worldwide

Sources: S&P Capital IQ and Motley Fool CAPS.

On CAPS, 80% of the 1,083 members who have rated LinkedIn believe the stock will underperform the S&P 500 going forward.

Just yesterday, one of those Fools, jed71, touched on the stock's seemingly unsustainable valuation:

Based on fundamentals, business should be trading at closer to $45 per share, a more than 50% haircut from current levels. And I think a $45 price would still be pricing in large revenue/earnings growth over the next 10 plus years. All it's going to take is one quarterly miss, and shareholders will be down greater than 20% in a single day.

[M]aybe I am missing something, but I don't see much of a moat built around this business. They are basically a knock-off of Facebook for professionals. The only time I ever see friends using this site is when they are looking for employment.

Ripe for a large correction!

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