In December 1999, a year and a half after the IPO, Intuit Inc. (makers of QuickBooks, TurboTax, and Quicken) purchased Rock Financial Corp. for $532M.
Intuit Inc., which produces QuickBooks, TurboTax, and Quicken, purchased Rock Financial Corp. in December 1999 for $532 million, following the company's IPO one and a half years prior.