The world\'s largest social network is now a public company, and in early trading, it appears investors couldn\'t be happier. Facebook today kicked off its IPO day at $38 a share, but in early trading, the company\'s stock has jumped 12 percent to $42.50. So far today, Facebook\'s shares have hit a high of $43.20 By going off at $38, Facebook was able to raise a whopping $16 billion, making it the largest Internet IPO of all time. Facebook announced its share price yesterday. In addition, the company announced that it has sold 421.2 million shares in the offering, putting it at a valuation of $104.1 billion. By the end of the day, it\'s quite possible it\'ll boast a market capitalization that\'s even higher.