In 2004, Blackstone had explored the possibility of creating a business development company (BDC), Blackridge Investments, similar to vehicles pursued by Apollo Management. However, Blackstone failed to raise capital through an initial public offering that summer and the project were shelved. It also planned to raise a fund on the Amsterdam stock exchange in 2006, but its rival, Kohlberg Kravis Roberts & Co., launched a $5 billion fund there that soaked up all demand for such funds, and Blackstone abandoned its project.