He's saying the stock doubled in its first day of trading. Meaning the shares were offered at a price. The company sold shares at that price. The same day the value of those shares doubled. So tr market is saying the shares are worth double of the IPO (initial public offering) price.

This behavior was common during the dot com bubble. IPOs doubled in price, everyone was happy. It's totally unrealistic.

Anyone who buys LinkedIn is retarded. Serious people that trade the market wouldn't touch it with a 10 foot pole. Sure you can trade this crap and make fist fulls of money in the short term. The venture capitalists got paid. Do not own this stock.

> This behavior was common during the dot com bubble. IPOs doubled in price, everyone was happy. It's totally unrealistic.

Google more than tripled in the first two months that followed its IPO and it's been trading steadily at ~$550 (IPO: $87) for several years.

> Anyone who buys LinkedIn is retarded.

Obvious shorter is obvious.

Because a company that made $12m last year should have a market cap of $8.5B? It's unrealistic to think otherwise? And anyone who does so is obviously trying to affect its share price ... via posts to a low-volume Internet message board?

I'm not sure I follow your logic here.

LNKD's p/e ratio is 1318 http://finance.yahoo.com/q?s=LNKD&ql=0

GOOG's p/e ratio is 20 http://finance.yahoo.com/q?s=GOOG&ql=0

Do not construed this as an opportunistic swing at LinkedIn to make money. This is basic market fact. Do you know of a stock that trades with a p/e of 1,300?

How can you make such an extraordinary claim that my analysis had ulterior motives when anyone with any knowledge of the market and the metrics of valuing stocks would know for sure that LinkedIn was overpriced not by magnitudes of 2 or 10 but by a magnitude of 100.

The stock shouldn't be trading much more than 8. But the market will remain irrational longer than the individual solvent.

> LNKD's p/e ratio is 1318 http://finance.yahoo.com/q?s=LNKD&ql=0 GOOG's p/e ratio is 20 http://finance.yahoo.com/q?s=GOOG&ql=0

Are you seriously comparing the P/E of a company that's been public for four days with one that's been public for seven years?

There's a reason they say sell in May. A lot of people think in June LinkedIn is going to take a beating. But who knows really, a lot of the time it is just a self-fulfilling prophecy.

Fundamentals be damned?

Trade like a technician.

See above: LNKD's p/e ratio is 1318 GOOG's p/e ratio is 20

LinkedIn's fundamentals are damning.