Jon Daniels
Senior Vice President, CarMax Auto Finance Operations at CarMax
Thanks, Enrique, and good morning, everyone.
During the second quarter, CarMax Auto Finance originated approximately $2.2 billion, resulting in sales penetration of 42% net of three day payoffs as compared to 42.8% during last year's second quarter. The weighted average contract rate charged to new customers was 11.5%, an increase of 40 basis points from a year ago. Third-party Tier 2 penetration in the quarter was 17.7%, down slightly from 18.1% a year ago. And third-party Tier 3 volume accounted for 6.7% of sales compared to the 6.4% seen in last year's second quarter. The combined third-party penetration of 24.4% remains in line with Q2 FY '24.
CAF income for the quarter was $116 million, down $19 million from the same period last year, predominantly impacted by a year-over-year provision increase of $23 million. Net interest margin for the quarter was 6.1%, in line with last year. The provision for loan losses for the quarter was $113 million and resulted in a reserve balance of $501 million. This compares to a provision of $90 million in last year's second quarter. Included in the $113 million provision is a $52 million or roughly 11% increase in our estimate of lifetime losses on existing loans, which we believe reflects industry-wide credit challenges.
Also included in the provision is $61 million for expected losses on current quarter originations. The resulting reserve to receivables ratio was 2.82% as compared to 2.79% at the end of Q1, and 3.08% from a year ago. Despite the growth in year-over-year provision, the reserve to receivables percentage only increased 3 basis points which is a result of credit tightening measures we deployed over the course of the last two years and their growing impact on the near $18 billion portfolio.
Regarding the broader credit industry, it has been well cited that a number of auto loan consumers are struggling in this inflationary environment, especially those borrowers who originated contracts in 2022 and in 2023 when elevated prices were coupled with high interest rates. To combat these results, lenders have generally tightened underwriting where necessary and have adjusted lifetime loss expectations based on weakening performance. CAF also, to some degree, experienced similar challenges emerging within the industry, but our customers have largely shown an ability to navigate this added inflationary burden.
During this last quarter, we observed additional pressure on the consumer. And as a result, we added to our provision accordingly. Despite the adjustment, these higher ASP originations from 2022 and 2023 remains significantly profitable for CarMax, and it is clear that the material tightening deployed in early 2023 has had a meaningful impact on our vintage level loss rates.
In addition, we observed a pocket of customers generally concentrated at the lower end of the Tier 1 credit spectrum that were of noticeably higher risk, which we addressed through the further tightening of our underwriting strategy for cautionary reasons beginning in April 2024. While the loss allowance was previously adjusted for this pocket in the first quarter as a part of our standard loan loss modeling process, during the second quarter, we observed further deterioration which necessitated an additional adjustment on the preexisting receivables.
We believe this quarter's provision adequately captures the performance within the quarter and the resulting reserve is our best estimate of the remaining lifetime loss for the portfolio. As always, CAF will continue to balance credit risk, driving CarMax sales and capturing its optimal share of highly profitable finance contracts.
Now I will share an update on CAF securitization program and full-spectrum lending initiative. During the month of June, we successfully executed our first non-prime ABS transaction and followed in July with our first higher prime ABS deal. The success of these transactions reaffirms our belief that these complementary programs will provide significant additional funding capacity to support CarMax's growth while giving us the flexibility to capture a larger piece of the Tier 2 and Tier 3 landscape. Also during the second quarter, CAF successfully began testing its new full-spectrum credit scoring models and corresponding strategies across both the Tier 1 and Tier 2 spaces, and we expect our Tier 3 testing of the new model to begin during the third quarter.
Now I'll turn the call back over to Bill.