The 7 biggest U.S. IPOs ever – including some surprises by Laura Lorenzetti @FortuneMagazine October 22, 2014, 4:05 PM EST E-mail Tweet Facebook Google Plus Linkedin Share icons This year has been a record showing for initial public offerings in the U.S. Companies have raised $73.6 billion so far this year, a more than 84% gain from 2013. The figures are certainly helped along by one of the massive offerings below (see: Alibaba), but the boom nevertheless reflects the strength of the overall market. The third quarter saw the highest proceeds from IPOs of any quarter since the end of 1999. Not only that, this year’s offerings have performed well, returning an average 8.3% from their offer price, according to data compiled by Renaissance Capital. Even though this has been a standout year for new issues, it has featured only one of the biggest IPOs ever. On the whole, IPOs this year have raised much more modest sums. For example, Alibaba’s record-breaking $22 billion offering was larger than all the other IPOs combined during the third quarter. The other six blockbuster offerings stretch back as far as 1996. Here are the 7 biggest IPOs ever.