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9. Pulte Homes
Fortune 500 rank: 282
2007 loss: $2.26 billion

As the buying and selling of new homes ground to a near-halt in 2007, the second-largest U.S. home builder got stuck in the middle. Sales of new houses fell by $5 billion, hit particularly hard by a Florida market where Pulte sold half as many new houses as it did in 2006.

The value of land the company owns also fell by $2 billion as plans for new developments were scrapped. It was rescued from a bigger loss only because it built about 9,000 fewer new units and laid off 1,700 employees.

NEXT: Fannie Mae
Last updated April 24 2008: 11:01 AM ET