Black Book, a division of Hearst that provides used vehicle valuations and residual value forecast solutions, released its Used Vehicle Retention Index for May 2025.The seasonally adjusted Index increased 0.1% (0.1 points) to 149.4 from April 2025 (149.3), which is 0.5% above where it was at the same time in 2024. 

“The market exceeded traditional seasonal expectations once again last month, with the Index reporting another increase from the previous month,” stated Laura Wehunt, vice president of data & analytics. “Speculation about the impact of tariffs created a frenzy among used market buyers in April and May, but buying activity began to taper off by the end of the month. As we move into June, the market appears to be stabilizing, aligning with more typical seasonal patterns.”