This excerpt taken from the CCRT 10-Q filed May 11, 2009.
Total yield ratio and gross yield ratio. As noted previously, the mix of our managed receivables generally shifted throughout 2007 toward those receivables of our lower-tier credit card offerings. These receivables have higher delinquency rates and late and over-limit assessments than do our other portfolios, and thus have higher total yield and gross yield ratios as well. Accordingly, we generally would expect these ratios to increase with disproportionate growth in and to decrease with disproportionate reductions in our lower-tier credit card receivables.
Our total and gross yield ratios were adversely affected in the second quarter of 2007 due to the addition of our acquired U.K. Portfolio. Its total yield and gross yield are below average as compared to our other portfolios, and the addition of the U.K. Portfolio negatively impacted our total yield and gross yield ratios by 4.8% and 1.7%, respectively, in the second quarter of 2007 and by 8.0% and 3.0%, respectively, in the second half of 2007. The effects of the U.K. Portfolio on these measures likewise continued into 2008 and the first quarter of 2009.
Our total and gross yield ratios bear the effects throughout the final two quarters of 2007 and going forward of changes we made to our billing practices in keeping with our goals of ensuring that our practices continue to be among the most consumer-friendly practices in the credit card industry and to address evolving negative amortization industry guidance. As an example of these changes, in November 2007, we began to reverse fees and finance charges on the accounts of cardholders who made their contractual payments to us so that those accounts would not be in negative amortization. These changes reduced our gross yield ratio in the fourth quarter of 2007, and because only two months of the effects of these changes are reflected in the fourth quarter, they had a greater impact throughout 2008