1Acquired Centex (2009 rank: 530), Aug. 18, 2009, and changed name from Pulte Homes, April 6, 2010. 2Net income is not included because company's emergence from bankruptcy, which included forgiveness of debt, distorted results. The company reported net income of $184.3 million to the SEC. 3Acquired by Pulte Homes, now PulteGroup (2009 rank: 508), Aug. 18, 2009. 4Acquired Black & Decker (2009 rank: 435) and changed name from Stanley Works, March 12, 2010. 5Spun off from Loews (2009 rank: 165), June 11, 2008. 6Figures are for the four quarters ended Sept. 30, 2009. 7Acquired Terra Industries (2009 rank: 980), April 15, 2010. 8Net income is not included because company's emergence from bankruptcy, which included forgiveness of debt, distorted results. The company reported net income of $8,257 million to the SEC. 9Figures are for the four quarters ended Mar. 31, 2009. 10Figures are for the four quarters ended Oct. 31, 2009. 11Acquired by CF Industries (2009 rank: 707), April 15, 2010.