A credit rating service has ranked five issuers, representing $103 billion in credit card-backed outstandings, for their seller/servicer operations. To-date, MBNA has earned the highest rating while Metris was rated the lowest. Fitch was the first agency to publish a formal rating criteria methodology for U.S. ABS seller/servicers. Fitch uses a scale of 1 to 5, with 1 being the highest rating. Within each of these rating levels, Fitch further differentiates ratings by plus and minus as well as the flat rating. In February the firm rated First National Bank of Omaha and InfiCorp Holdings. This week four more were added including HSBC, MBNA, Metris, and Providian.