$8 Billion Valuation. LinkedIn Corp's shares more than double in trading

LinkedIn Corp's shares more than doubled to $103 in their public trading debut this week, a jump reminiscent of the heyday of investors' hysteria with Internet stocks in the late 1990s. Shares soared 128 percent, or $58.64, to $103.90 in late morning trading on the New York Stock Exchange, exceeding the $45 initial public offering price.

The good news in stride

LinkedIn Chief Executive Jeff Weiner is soberly taking all the good news in stride. 'Speaking for myself, personally I'm not even thinking twice about where the price is today and leaving money on the table or even anything remotely along those lines,' he said, adding that the stock 'will take care of itself' and trade on fundamentals.

LOS ANGELES, CA - The mass excitement for the stock brings the valuation of LinkedIn to more than $8 billion. Not bad, for something that less than ten years ago was just a computer in somebody's living room.

The first prominent U

LinkedIn is the first prominent U.S. social networking company to test just how savvy investors are for anything social-media related on the Web just as Facebook, Groupon, Twitter and Zynga.

"Speaking for myself, personally I'm not even thinking twice about where the price is today and leaving money on the table or even anything remotely along those lines," he said, adding that the stock "will take care of itself" and trade on fundamentals.

Proxy for other big-name IPOs coming to the markets

Weiner cautioned against viewing LinkedIn as a proxy for other big-name IPOs coming to the markets. He says that they will as well be driven by those companies' fundamental values.