GPI vs PAG: Which Is the Better Buy in 2026?
Last updated October 2026
Short answer
PAG is the larger of the two ($13.95B market cap): the incumbent the market prices for continued execution (15.13x forward earnings, beta 0.91). GPI is the smaller challenger ($2.89B), cheaper on forward earnings (5.91x): 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.
GPI vs PAG: the tie-breaker metrics
Same yardstick, side by side (as of October 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 | GPI | PAG | What it tells you |
|---|---|---|---|
| Market cap | $2.89B | $13.95B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | 5.91 | 15.13 | 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 | 10.12 | 14.94 | 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 | 0.92 | 0.91 | 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 | 7% of range | 83% 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 | 0.97 | 2.40 | 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 GPI and PAG 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. GPI and PAG 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 GPI and PAG 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 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.
What does Penske Automotive Group (PAG) do?
Penske Automotive Group (NYSE: PAG) is a diversified transportation services company that operates retail automotive dealerships (a large share in the US and UK), retail commercial truck dealerships in North America, and commercial vehicle distribution. In 2025 it generated roughly $30.6 billion in revenue, and over the twelve months through June 2026 revenue was about $32.2 billion with net income near $906 million. The company also owns about 28.9% of Penske Transportation Solutions (PTS), a truck leasing and logistics business that contributes meaningful equity earnings.
GPI vs PAG: 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.
- GPI drivers: Parts, service, and F&I durability; U.K. expansion and diversification.
- PAG drivers: The $212 take-private and what holders receive; Deal certainty: vote, financing and fees.
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: 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, and recent reporting suggests car shoppers are pushing back on price increases. For PAG, for a holder today the central risk is deal risk.
GPI or PAG: 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 GPI if you believe its drivers more; PAG 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 GPI and PAG guides.
GPI vs PAG: the full fundamentals
GPI. GPI trades near 6x forward earnings and about 1x book value after a roughly 43% one-year decline, at the low end of an already low-multiple auto-retail peer group whose P/E multiples have compressed by several turns. The discount reflects falling revenue, four straight EPS misses and analyst downgrades. The analyst average target is about $342 across 12 analysts, though recent cuts (Morgan Stanley $232, UBS $271, BofA $323) point lower.
PAG. PAG's valuation is now set by the $212 cash offer rather than by earnings multiples: at about 15 times trailing earnings, the market price simply tracks the deal. The shares closed slightly above the offer on October 16, 2026, which implies investors see little risk of the deal failing, while the regular dividend is most of what remains for holders until the expected first-quarter 2027 close.
Headline figures (approximate, October 2026): GPI shows revenue (ttm) ~$22.2B (2025: ~$22.6B), revenue growth (q2 2026) ~-5.6% year over year (~$5.39B), margins (ttm) Gross ~16%, operating ~3.8%, net ~1.3%, net income (ttm) ~$285M; PAG shows take-private price $212.00 per share in cash (~$16.3B total value); close expected Q1 2027, share price ~$212.57 (Oct 16, 2026), about at the offer, revenue (ttm) ~$32.2B, up ~6% year over year in Q2 2026, net income (ttm) ~$906M; net margin ~2.8%.
The bottom line: GPI vs PAG
GPI and PAG 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 GPI and PAG exposure against your real portfolio. It is not an investment adviser.
Wondering how GPI or PAG 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 Group 1 Automotive with AI
Connect the broker you already use and ask Walnut's AI how GPI 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 GPI and PAG?
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Group 1 Automotive, Inc. Penske Automotive Group (NYSE: PAG) is a diversified transportation services company that operates retail automotive dealerships (a large share in the US and UK), retail commercial truck dealerships in North America, and commercial vehicle distribution. 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 GPI or PAG the better stock?
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Neither is universally better. PAG 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, GPI or PAG?
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On forward P/E (as of October 2026), GPI trades at 5.91x and PAG at 15.13x, 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 GPI and PAG?
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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 GPI vs PAG?
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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, and recent reporting suggests car shoppers are pushing back on price increases. Front-end vehicle gross margins have been normalizing down from post-pandemic highs, and revenue turned lower in 2026 (down about 5.6% year over year in the June quarter). The company has missed EPS estimates four quarters running, and Morgan Stanley cut it to Underweight in October 2026 over rebranding disruption, used-vehicle sourcing and the Hennessy integration, plus structural threats from FTC fee-disclosure rules and AI price comparison. The model is capital-intensive and carries meaningful floorplan and real-estate debt (about $5.8 billion against about $169 million of cash) that becomes more expensive in a higher-rate environment. Longer term, the shift toward electric vehicles and direct-to-consumer sales models could pressure franchised-dealer economics. Exposure to two macro economies (U.S. and U.K.) adds further variability. PAG: For a holder today the central risk is deal risk. If public shareholders vote it down, or the transaction otherwise fails to close, the stock would likely fall back toward a level set by the business itself, and the $212 price was about 8.6% above where PAG traded on July 21, 2026, before the buyers' first proposal. A delay past the expected first-quarter 2027 close would stretch the time it takes to receive the cash. Because the price is fixed, holders give up any upside if dealership earnings or the PTS stake improve before closing, and the narrow spread offers little compensation for waiting. The cash is taxable for most holders. In the background the usual business risks remain: vehicle retail is cyclical and sensitive to interest rates and affordability, the company carries about $9.4 billion of debt, and international and freight-market exposure through the UK operations and PTS add uncertainty. Walnut is not an investment adviser.
Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell GPI or PAG; figures are approximate and dated (as of October 2026). Verify current data before investing.