Pre-earnings channel check · Dealer group
Group 1 Automotive (GPI) · Q3 2026
published Oct 21, 2026 · 25 min read · reported Tue, Oct 27, 2026
What the report says
North American Vehicle Transaction Signal
Group 1 sold fewer cars than the market on both sides of the business. In our data its new-vehicle sales fell 8.3% from a year ago, against a 3.0% fall for the whole new market, and its used sales fell 17.2%, against 3.5%.
Our count has run below Group 1's own reported change in both earlier quarters this year, so these declines are more likely too steep than too shallow. The used shortfall against the market is still more than twice the largest gap we have measured.
Used cars came off their first asking price by more than a year ago while franchise dealers overall discounted less, and active inventory of used cars grew 15.7% from June, after setting aside cars listed more than 180 days at the same store as service loaners.
The new-car gap to the market narrowed every month: by September new sales were level with a year ago.
Gross profit per car, financing, service, overhead savings and the United Kingdom are outside our data and can move the company's quarter a full tier either way.
Full details are in the report.
18 sections · 25 tables · methodology, quality checks and glossary included
Inside
Summary
- Our Overall Take
- The Quarter in Numbers
- Inventory and Pricing Risk
- Electric Vehicles, Geography, and the Two Cases
Full analysis
- 01Overall Verdict and Confidence
- 02Signal Summary Table
- 03Detailed Sales Numbers
- 04Top Brands Sold
- 05What's Sitting on the Lots (Inventory)
- 06Price Position: Sticker, Asking Premium and Discounts
- 07Days to Sell and Market Days Supply
- 08Electric Vehicle Sales
- 09The Positive Case
- 10The Negative Case
- 11ADid Management Get It Right Last Quarter?
- 11BWhat to Watch on the Earnings Call
- 11CPost-Print Accuracy Summary (Group 1 Q3 2026 Results, October 28, 2026)
- 12Methodology and Glossary
What this report covers
MarketCheck data on retail new and used vehicle sales and inventory at Group 1 Automotive's dealerships in the United States. What we cannot see: Finance & Insurance (F&I) income, parts, service and collision work (aftersales), the United Kingdom business, wholesale and auction sales, overhead and the cost program, and gross profit per vehicle. Treat this report as one tile in the investment mosaic: a read on the U.S. car-selling side of the business, not on the whole company.
Not investment advice. MarketCheck is a data and analytics company, not a registered investment adviser or broker-dealer. The report describes North American retail vehicle activity only and carries its full disclosures.