The 11 Biggest U.S. IPOs

This story has been updated from its publication on May 7, 2012.

NEW YORK ( TheStreet) - With the dust slowly settling after Facebook's mega-IPO, investors are starting to digest the largest-ever tech offering.

The social networking giant raised just over $16 billion in its eagerly-anticipated IPO on Friday. The predicted opening day pop, however, failed to materialize, with the stock closing just slightly above the $38 offer price on the first day of trading. On Monday, the shares broke below that offer price, falling more than 10%.

2011 had its share of headline-grabbing tech IPOs, which included Zynga ( ZNGA), Renren ( RENN), Groupon ( GRPN) and LinkedIn ( LNKD) but Facebook dwarfed those deals.

Facebook's offering also easily surpassed Google's ( GOOG) 2004 $1.7 billion IPO, previously the largest IPO from an American tech company. German semiconductor specialist Infineon Technologies, however, was another mega offering, raising $5.2 billion in its 2000 IPO. The chip maker ultimately opted to delist from the New York Stock Exchange in 2009.

Overall, 2012 looks set to be a decent year for tech companies taking the public plunge. Prior to the Facebook offering, IPO expert Renaissance Capital said that tech firms have accounted for 20 U.S. IPOs valued at more than $50 million each this year, the most in any sector. Last year there were a total of 48 tech offerings.

The IPO price of $38 a share gave Facebook a valuation of $104 billion, significantly above the market caps of tech heavyweights Dell ( DELL) and HP ( HPQ).

With Facebook now a public company, we looked at the 11 largest offerings from U.S. firms, according to Dealogic.

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