
SAN FRANCISCO (Reuters) - The historic initial public offering of Facebook Inc did not go as planned on Friday, as the social networking company's sky-high valuation combined with trading glitches left the stock languishing near its offering price at the market close. Facebook shares, which opened up 11 percent, closed at $38.23 after a nail-biting last half hour of trading when the shares dipped to their $38 IPO price. Most investors had predicted a first-day pop. More than 576 million shares changed hands, setting a trading volume record for U.S. market debuts. ...