January core CPI (which excludes food and energy prices) rose 0.30% month over month, in line with expectations, and the year-over-year rate declined to 2.50%.
Let’s take a closer look at Goldman Sachs Research’s breakdown of the latest data.
The volatile used cars component declined 1.8%, weighing on core CPI by 7 basis points, while airfares rose 6.9%, boosting the core rate by 8 basis points.
The rent and owners’ equivalent rent (OER) components slowed to 0.23% (vs. 0.30% in December and 0.27% on average in December, September, and August—excluding the distorted October and November readings).
Core goods excluding used cars increased 0.35%, the fastest sequential pace since early 2023 and possibly reflecting start-of-year price increases and upward pressure from tariffs.
Video and audio product prices increased at the fastest-ever monthly pace (+2.2%).
Core services excluding rent, OER, and airfares inflation was 0.39%, below its average pace of 0.60% in 2025, excluding October and November.
Goldman Sachs Research estimates that the new weights will be modestly disinflationary, partially reflecting higher weights in the health insurance, used cars, and communication categories (which our analysts expect to increase by less than overall inflation) and lower weights in the transportation services, education, and personal care components (which our analysts expect to increase by more than overall inflation).
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