Auctions · Sep 28, 2026

Wholesale used prices fell in Sep 2026 while the Aug 2026 US retail used median sat 4.3% above Aug 2025

US used vehicles, week of Sep 28, 2026: wholesale turned negative year over year while retail asking prices held a plateau.

MarketCheck Data Desk · Sep 28, 2026

Wholesale used prices fell in Sep 2026 while the Aug 2026 US retail used median sat 4.3% above Aug 2025

CBT News reported on Sep 21, 2026 that wholesale used car prices in the United States fell 1% in the first half of Sep 2026, pushing the Manheim Used Vehicle Value Index below its year-ago level for the first time in 2026. The figures come from Cox Automotive's mid-Sep 2026 Manheim release of Sep 18, 2026. Set against that, MarketCheck sold-vehicle data for the US shows the used retail median last-list price at $23,988 in Aug 2026, up 4.3% from $22,998 in Aug 2025. MarketCheck sold figures are advertised asking prices on vehicles that left dealer websites, a sold proxy rather than transaction prices, and the data lags about two months, which is why Aug 2026 retail is the reading that sits alongside mid-Sep 2026 wholesale.

What the data shows

Metric (unit) Aug 2025 Jul 2026 Aug 2026 Change, Aug 2025 to Aug 2026
Median last-list price, sold proxy ($) 22,998 23,985 23,988 +990 (+4.3%)
Mean last-list price, sold proxy ($) 26,503 27,395 27,350 +847 (+3.2%)
Mean price vs MarketCheck MSRP (%) -38.56 -38.11 -38.20 +0.36 points
Median mileage (miles) 61,714 60,580 58,947 -2,767 (-4.5%)
Median days on market (days) 25 27 26 +1 day
Used vehicles sold (units) 1,738,262 1,646,573 1,709,132 -29,130 (-1.7%)

The price rows are last-list asking prices on vehicles that left US dealer websites, used here as a sold proxy, and the MSRP comparison is a mean. Read together, retail asking prices rose year over year and held flat from Jul 2026 to Aug 2026, while volume dipped 1.7% and the vehicles leaving dealer sites carried fewer miles.

Why it matters

What to watch

How this was measured

Method: MarketCheck monthly sold-vehicle statistics from dealer websites (182 million sales since 2021) and live US listings. Sold-data prices are last-list asking prices on vehicles that left dealer websites, not transaction prices, and exclude auctions and private sales. Data lags about two months, so Aug 2026 retail is set against mid-Sep 2026 wholesale. Retail medians are not mix-adjusted. Wholesale figures are Cox Automotive's.

APIs used: MarketCheck Sold Summary API (the get_sold_summary tool in the MarketCheck MCP; docs https://docs.marketcheck.com/docs/get-started/api/mcp/tools/sold-summary) for US used sold summaries covering Sep 2025 to Aug 2026 and Aug 2025, and the Inventory Search API, GET /v2/search/car/active (https://docs.marketcheck.com/docs/api/cars/inventory/inventory-search) for US used active listings on Sep 28, 2026. API keys: https://developers.marketcheck.com.

Data source: MarketCheck sold-vehicle data, US dealer websites, plus MarketCheck live inventory data for Sep 28, 2026.

The story we checked

Verified points include the Manheim index falling 1% from Aug 2026 to 206.2 in the first 15 days of Sep 2026, the index sitting 0.4% below Sep 2025, non-adjusted wholesale prices down 1.1% month over month and 1.1% year over year, the September decline reversing stronger wholesale pricing from the first half of 2026, and the US used retail median rising 4.3% from Aug 2025 to Aug 2026.

You can run the same read in MarketCheck AI Desk (install: https://ai.marketcheck.com/install).

Reproduce this

The story we checkedWholesale used car prices fall for the first time in 2026, CBT News, Sep 21, 2026