Stop advance rates by servicers of non-agency MBS are more than double industry estimates, based on new data from CoreLogics LoanPerformance. Analysts at Barclays Capital said the data also allow calculation of loan-level stop advance rates on non-amortizing loans for the first time. LoanPerformance recently started reporting loan-level stop advance data on approximately 700 non-agency MBS, about 13.0 percent of active deals, according to Barclays. While CoreLogic said the trustee-submitted data will be reported without reference to the specific servicer, Barclays determined that the data are primarily limited to deals by Countrywide Financial and Washington Mutual. Stop advance rates in recent months on the Countrywide-serviced deals range...