Ten classes from two Wells Fargo home equity asset-backed securities have been downgraded by Fitch Ratings as a result of changes in the rating agency's subprime loss forecasting assumptions.Fitch also affirmed the ratings on 19 other classes in three Wells Fargo deals. The revised assumptions in Fitch's subprime loss model "better capture the deteriorating performance of pools from 2006 and late 2005 with regard to continued poor loan performance and home price weakness," the rating agency said.

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