Fitch downgraded four classes of CitiMortgage Alternative Loan Trust, Series 2006-A4, and four classes of Series 2006-A6. A deteriorating relationship between credit enhancement and expected loss was also cited by Fitch for downgrades on about $217 million and placement on review for downgrade of $22 million in classes of fixed-rate, Alt-A loan-backed Countrywide deals. Higher ratings were given to two classes or $47 million worth of Morgan Stanley Capital I Inc., series 2006-XLF, commercial mortgage pass-through certificates. GECC Commercial Mortgage Securities Corp., series 2004-C2 reportedly saw higher ratings by Fitch for three classes worth $84 million.
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