$42.05 a share - that's the opening trade for one of the hottest debuts in stock market history.<br/> <br />82 million shares traded hands in the first 30 seconds, following the biggest tech IPO in U.S. history, which priced at $38 a share the night before.<br/> <br />There was much celebration at Facebook's Menlo Park, California headquarters as CEO Mark Zuckerberg marked the first day of trade.<br/> <br />But when the euphoria fades, do recent hot hi-tech IPOs hold their weight?<br/> <br />LinkedIn, considered the closest in terms of business model, priced at $45, more than doubled on its first day and is now trading more than 130 percent above its IPO.<br/> <br />But music company Pandora has lost 37 percent of its IPO value.<br/> <br />Online games developer Zynga is now 20 percent below the IPO.<br/> <br />But the biggest disappointment is Groupon. Its shares are down 40 percent from its IPO.<br/> <br />Anupam Palit of Greencrest Capital:<br/> <br />SOUNDBITE: ANUPAM PALIT, HEAD OF RESEARCH, GREENCREST CAPITAL (ENGLISH) SAYING:<br/> <br />"I think the Internet and the tech sector in general has always been a space that is over hyped. One thing that contributes to it is because these are social media stocks, social network stocks; they are well understood by their users in terms of the name brand. So a company that may be very deep in tech, in a different industry, may not have a lot of name recognition but a name like Facebook everybody knows it. Everybody wants to be a part of it."<br/> <br />And that high interest is playing out as shares of Facebook bounce between 38 and 45 dollars a shares within the first hours of trade.<br/> <br />Conway Gittens, Reuters
