US Manheim Month-on-month, seasonally adjusted
US Manheim Month-on-month, seasonally adjusted stood at -1.1% in Sep 2026. It is one of the indicators in the Manheim Used Vehicle Value Index table (Value · Monthly), with a complete series running from Feb 1997 to Sep 2026. The complete series with an interactive chart, free to download.
This indicator in the Manheim Used Vehicle Value Index table
| Indicator | 09-2026 | 08-2026 | 07-2026 | 06-2026 | 05-2026 | 04-2026 | 03-2026 | 02-2026 | 01-2026 | 12-2025 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| TOTAL MARKET (Jan 1997 = 100) | |||||||||||
| Month-on-month, seasonally adjusted | -1.1 | -0.85 | -1.36 | 0.11 | 0.32 | -1.56 | 1.42 | 0.85 | 2.4 | 0.05 | |
| Year-on-year, not seasonally adjusted | -1.22 | 0.16 | 1.67 | 2.91 | 3.05 | 2.78 | 5.69 | 4.16 | 2.54 | 0.46 |
Understanding US Manheim Month-on-month, seasonally adjusted
The US Manheim Month-on-month, seasonally adjusted, isolates the immediate sequential percentage change in wholesale used vehicle values after smoothing out predictable calendar and weather distortions. It measures short-term momentum by comparing the latest auction pricing environment directly against the immediately preceding period, excluding one-off holiday shocks. This series should not be confused with annual growth metrics, as it is hyper-focused on detecting high-frequency turning points in dealer demand.
Published monthly, this series frequently experiences technical revisions as seasonal factors and late transaction inputs are finalized. Because month-on-month calculations amplify any residual volatility, interpreting these figures requires caution regarding single-month anomalies. While it offers the fastest read on shifting automotive market conditions, analysts pair it with longer-term comparisons to confirm whether a tactical monthly shift represents a durable trend.