AN vs GPI: Which Is the Better Buy in 2026?
Last updated August 2026
Short answer
AN is the larger of the two ($7.11B market cap): the incumbent the market prices for continued execution (8.71x forward earnings, beta 0.75). GPI is the smaller challenger ($3.42B), cheaper on forward earnings (6.29x): more room to run, but more to prove. The real question is which set of drivers you believe, and whether owning one (or both) leaves you over-concentrated.
AN vs GPI: the tie-breaker metrics
Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.
| Metric | AN | GPI | What it tells you |
|---|---|---|---|
| Market cap | $7.11B | $3.42B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | 8.71 | 6.29 | Valuation on next year's expected earnings, the same yardstick for both. Lower is cheaper for that growth; higher means the market is paying up. |
| Trailing P/E | 9.84 | 11.86 | Valuation on the last 12 months. A big drop from trailing to forward means the market expects earnings to jump, so more growth is already in the price. |
| Beta | 0.75 | 0.83 | Volatility vs the market. Above 1 swings harder than the index; below 1 is steadier. Higher beta means bigger drawdowns to hold through. |
| Price vs 52-week range | 60% of range | 6% of range | Where today's price sits between the 52-week low and high. Near the high is momentum with less margin of safety; near the low is out of favor or a discount, depending on why. |
| Price / book | 3.19 | 1.19 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Reading it: GPI is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.
Before you buy: how AN and GPI affect your concentration
The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. AN and GPI share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.
This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined AN and GPI exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.
What does AutoNation (AN) do?
AutoNation operates a nationwide network of franchised new-vehicle dealerships across three segments (Domestic brands like GM and Ford, Import brands like Toyota and Honda, and Premium Luxury brands like Mercedes-Benz and BMW), alongside standalone AutoNation USA used-vehicle stores, collision centers, and an in-house lending arm, AutoNation Finance. The company sells new and used vehicles, but its most profitable work is aftersales (parts, service, and repair) and finance and insurance products, which together make up roughly 22% of revenue yet contribute around 75% of gross profit.
What does Group 1 Automotive (GPI) do?
Group 1 Automotive, Inc. (NYSE: GPI) is one of the largest franchised automotive retailers in the world, selling and leasing new and used cars and light trucks, arranging financing, selling service and insurance contracts, and providing maintenance, repair, and collision services plus retail and wholesale parts. As of December 2025 the company operated a retail network spanning 17 U.S. states and 62 U.K. towns and cities, with roughly 145 U.S. dealerships and 109 U.K. dealerships. Its business splits across four revenue streams: new vehicles, used vehicles, parts and service (the highest-margin, most recession-resilient piece), and finance and insurance (F&I), which carries very high incremental margins because it monetizes financing and product attach on each sale.
AN vs GPI: how do they differ?
Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.
- AN drivers: Aftersales and higher-margin mix; Used vehicles and AutoNation USA.
- GPI drivers: Parts, service, and F&I durability; U.K. expansion and diversification.
Which fits which kind of investor
A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Auto retailing is cyclical and sensitive to interest rates, vehicle affordability, and consumer confidence, all of which can pressure unit volumes and gross profit per vehicle. For GPI, gPI is a highly cyclical business exposed to new and used vehicle demand, which softens when interest rates are high, financing gets tighter, or consumer confidence weakens.
AN or GPI: which should you pick?
Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick AN if you believe its drivers more; GPI if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the AN and GPI guides.
AN vs GPI: the full fundamentals
AN. AutoNation trades at a low earnings multiple relative to the broad market, which is typical for cyclical, capital-intensive auto dealers. Gross margin improved modestly to about 18.5% in Q1 2026, and adjusted free cash flow was roughly $256 million, funding the sizable buyback program.
GPI. GPI trades at roughly 8x earnings, a discount of about 40% to the broader retail industry median and in line with the low-multiple auto-retail peer group. The single-digit multiple reflects the cyclical, capital-intensive nature of the dealership model and market caution about where vehicle margins settle as post-pandemic pricing normalizes. Aggressive buybacks support per-share metrics even as total net income declined year over year in 2025.
Headline figures (approximate, July 2026): AN shows revenue (ttm) ~$27.6B, q1 2026 revenue ~$6.6B, q1 2026 adjusted eps ~$4.69, market cap ~$8B; GPI shows revenue (2025) ~$22.6B, q1 2026 revenue ~$5.4B, net income (2025) ~$324M, market cap ~$4.1B.
The bottom line: AN vs GPI
AN and GPI are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined AN and GPI exposure against your real portfolio. It is not an investment adviser.
Wondering how AN or GPI fits the portfolio you already own? Walnut is an AI investing app that connects your brokerage read-only and answers questions like that about your actual holdings: overlap, concentration, and how each position tracks the S&P 500. Compare the best AI portfolio analyzers or see the best AI investing apps in 2026.
Investing in AutoNation with AI
Connect the broker you already use and ask Walnut's AI how AN fits what you actually hold: whether you own it already through a fund, what it would do to your concentration, and how it has tracked the S&P 500. Read-only by default, and you approve anything before it reaches your broker.
FAQ
What is the difference between AN and GPI?
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AutoNation operates a nationwide network of franchised new-vehicle dealerships across three segments (Domestic brands like GM and Ford, Import brands like Toyota and Honda, and Premium Luxury brands like Mercedes-Benz and BMW), alongside standalone AutoNation USA used-vehicle stores, collision centers, and an in-house lending arm, AutoNation Finance. Group 1 Automotive, Inc. They show up together because they share investment themes, but they are different businesses, so the better fit depends on which thesis you are expressing.
Is AN or GPI the better stock?
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Neither is universally better. AN is the larger incumbent; GPI is the smaller challenger and looks cheaper on forward earnings. Walnut is informational, not investment advice. Compare what each does, the tie-breaker metrics above, and the risks, then decide which fits your thesis and what you already own.
Which is cheaper, AN or GPI?
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On forward P/E (as of August 2026), AN trades at 8.71x and GPI at 6.29x, so GPI is the cheaper of the two on next year's expected earnings. A lower multiple is not automatically the better buy: a richer valuation can be justified by faster growth, and a lower one can reflect real risk. Weigh the multiple against how fast each business is compounding.
Should you own both AN and GPI?
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Because they share themes, owning both concentrates you in that theme. That can be intentional (a focused bet) or accidental (less diversification than it looks). Walnut can show your combined exposure across both, and whether adding either over-concentrates you, before you buy.
What are the risks of AN vs GPI?
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AN: Auto retailing is cyclical and sensitive to interest rates, vehicle affordability, and consumer confidence, all of which can pressure unit volumes and gross profit per vehicle. New-vehicle pricing and margins have been normalizing lower from post-pandemic highs, and same-store new-unit sales have declined. The finance arm adds credit and funding risk if loan losses rise in a weaker economy. The business is capital-intensive, carries meaningful debt and floorplan financing, and depends on manufacturer relationships and inventory allocations. Longer term, the shift to electric vehicles and any changes to the franchised-dealer model could reshape the industry. GPI: GPI is a highly cyclical business exposed to new and used vehicle demand, which softens when interest rates are high, financing gets tighter, or consumer confidence weakens. Front-end vehicle gross margins have been normalizing down from post-pandemic highs, pressuring profitability even as revenue grows through acquisitions. The model is capital-intensive and carries meaningful floorplan and real-estate debt that becomes more expensive in a higher-rate environment. Longer term, the shift toward electric vehicles and evolving direct-to-consumer sales models could pressure the traditional franchised-dealer economics, particularly the lucrative parts-and-service work. Execution and integration risk on acquisitions, plus exposure to two macro economies (U.S. and U.K.), add further variability to results.
Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell AN or GPI; figures are approximate and dated (as of August 2026). Verify current data before investing.