Background: In May 2006, KKR Private Equity Investors, a publicly traded private equity fund that invests as a fund of funds, raised $5.1 billion after listing in Amsterdam. In July 2010, KKR Private Equity Investors' parent, KKR ( KKR), or Kohlberg, Kravis Roberts, delisted from the Euronext Amsterdam exchange, where it had traded since October 2009 after it acquired KKR Private Equity Investors, and began trading on the New York Stock Exchange, according to the company's 2010 annual report. KKR made a name for itself in the leveraged buyout space in the 1980s, culminating with its record breaking buyout of RJR Nabisco in 1989. It also performed the largest buyout ever of TXU in 2007. Stock performance: KKR shares have gained 2.49% so far this year. The stock is up 0.31% to $13.15 Monday.