Fannie Mae said delinquencies in its mortgage portfolio continue to rise and that its portfolio shrunk.

The government-sponsored enterprise and its smaller sibling Freddie Mac were put into conservatorship more than a year ago by the federal government amid fears of mounting losses at the companies.

So far the Treasury Department has provided $60 billion of capital to Fannie and $51 billion to Freddie.

Fannie said Monday that serious delinquencies, those at least 90 days behind, rose in October to 4.98% on single-family homes from 4.72% in September and 1.89% a year earlier. Fannie's delinquencies have been higher than Freddie's.

The report also showed that Fannie's mortgage portfolio fell 2.5% in November, to $752.22 billion, or a 26% annual rate. Its book of business, which includes mortgage-backed securities and other guarantees, fell $18.58 billion, to $3.22 trillion. Its annualized rate of decline was 6.7% for the month.

In addition, Fannie's net commitments to purchase mortgages fell 1.9%, to $63.27 billion, in November from the prior month.

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