CUBE vs EXR: Which Is the Better Buy in 2026?
Last updated September 2026
Short answer
EXR is the larger of the two ($30.92B market cap): the incumbent the market prices for continued execution (29.15x forward earnings, beta 1.18). CUBE is the smaller challenger ($8.99B), cheaper on forward earnings (25.27x): 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.
CUBE vs EXR: the tie-breaker metrics
Same yardstick, side by side (as of September 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 | CUBE | EXR | What it tells you |
|---|---|---|---|
| Market cap | $8.99B | $30.92B | Size. The larger name is the incumbent; the smaller has more room to grow and more to prove. |
| Forward P/E | 25.27 | 29.15 | 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 | 27.03 | 30.93 | 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 | 1.06 | 1.18 | 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 | 57% of range | 43% 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 | 3.47 | 2.23 | How much you pay over book value. Very high can signal an asset-light, high-return business or a rich price. |
Reading it: CUBE 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 CUBE and EXR 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. CUBE and EXR 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 CUBE and EXR 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 CubeSmart (CUBE) do?
CubeSmart is a self-storage real estate investment trust that owns, operates, and manages hundreds of storage facilities across the United States, concentrated in higher-barrier coastal and major-metro markets. It generates revenue by renting storage units to households and businesses, and it supplements owned-store income with a large third-party management platform that runs facilities for other owners. As a REIT, it passes most of its taxable income to shareholders as dividends, and it has raised that dividend for 16 consecutive years, most recently to an annualized $2.12 per share.
What does Extra Space Storage (EXR) do?
Extra Space Storage Inc. (NYSE: EXR) is a self-administered and self-managed real estate investment trust headquartered in Salt Lake City, Utah. The company owns and operates, or manages on behalf of third parties, self-storage facilities where individuals and businesses rent climate-controlled and standard storage units on a month-to-month basis. As of late 2025, EXR owned or operated 4,281 stores in 43 states and Washington, D.C., with the vast majority of revenue coming from rental income supplemented by a tenant reinsurance (contents insurance) segment, third-party management fees across more than 2,100 managed stores, and a growing bridge-loan and mezzanine financing program with roughly $1.5 billion in outstanding balances. The company's integrated technology platform, which uses data-driven pricing and digital customer acquisition tools, is central to its operational strategy.
CUBE vs EXR: 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.
- CUBE drivers: Dividend track record and income appeal; Improving same-store trend off a soft base.
- EXR drivers: Supply Cycle Turning in EXR's Favor; Capital-Light Platform Creates Durable Fee Income.
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: Self-storage demand is sensitive to housing turnover and household moves, and a slow housing market has weighed on new customer move-ins and rate growth. For EXR, the primary bear case is that oversupply in Sunbelt markets including Atlanta, Phoenix, and Las Vegas remains stubbornly elevated, keeping same-store NOI in negative or flat territory even as occupancy holds up.
CUBE or EXR: 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 CUBE if you believe its drivers more; EXR 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 CUBE and EXR guides.
CUBE vs EXR: the full fundamentals
CUBE. CUBE trades around the mid-teens on a price-to-FFO basis, a typical range for a stabilized storage REIT and a discount to larger peers like Public Storage and Extra Space. The reported EPS payout ratio looks stretched (well above 100%) because REIT net income is depressed by heavy real estate depreciation, so FFO and AFFO are the more relevant coverage measures. Guidance for 2026 implies roughly flat FFO per share versus 2025 as improving revenue offsets expense inflation.
EXR. Because EXR is a REIT, investors typically weight Core FFO per share and price-to-FFO multiples more heavily than GAAP earnings or the traditional P/E ratio, since depreciation charges on real estate assets reduce reported net income substantially. At roughly $8.21 in Core FFO for 2025 and a stock price in the low-to-mid $140s, EXR is trading at a price-to-Core-FFO multiple of approximately 17 to 18 times, which is modestly below its recent historical range and reflects market caution about same-store NOI recovery. The 4.4% dividend yield is above the specialized REIT industry median, supported by a decade-long dividend CAGR of roughly 13%.
Headline figures (approximate, July 2026): CUBE shows revenue (ttm) ~$1.1B, q1 2026 revenue ~$282M (up ~3.3% YoY), ffo per share (adjusted, q1 2026) ~$0.63, 2026 ffo/share guidance (adjusted) ~$2.52 to $2.60; EXR shows revenue (ttm, through q3 2025) ~$3.34 billion, q1 2026 revenue ~$856 million (beat estimates by ~6%), core ffo per share (fy2025) ~$8.21, 2026 core ffo guidance (full year) $8.05 to $8.35 per share.
The bottom line: CUBE vs EXR
CUBE and EXR 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 CUBE and EXR exposure against your real portfolio. It is not an investment adviser.
Wondering how CUBE or EXR 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 CubeSmart with AI
Connect the broker you already use and ask Walnut's AI how CUBE 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 CUBE and EXR?
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CubeSmart is a self-storage real estate investment trust that owns, operates, and manages hundreds of storage facilities across the United States, concentrated in higher-barrier coastal and major-metro markets. Extra Space Storage 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 CUBE or EXR the better stock?
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Neither is universally better. EXR is the larger incumbent; CUBE 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, CUBE or EXR?
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On forward P/E (as of September 2026), CUBE trades at 25.27x and EXR at 29.15x, so CUBE 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 CUBE and EXR?
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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 CUBE vs EXR?
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CUBE: Self-storage demand is sensitive to housing turnover and household moves, and a slow housing market has weighed on new customer move-ins and rate growth. Same-store net operating income was negative through much of 2025 as operating expenses (taxes, payroll, insurance, and weather-related costs) outpaced modest revenue changes. As a REIT, CubeSmart is sensitive to interest rates, which affect both its borrowing costs and the relative attractiveness of its dividend versus bonds. New supply in some markets, promotional discounting to fill units, and a high reported EPS payout ratio are additional pressures. Any renewed weakness in occupancy or street rates would directly slow FFO and could constrain future dividend increases. EXR: The primary bear case is that oversupply in Sunbelt markets including Atlanta, Phoenix, and Las Vegas remains stubbornly elevated, keeping same-store NOI in negative or flat territory even as occupancy holds up. Property taxes and other uncontrollable operating expenses surged roughly 19% year-over-year in certain quarters of 2025, compressing margins in a low-revenue-growth environment. A muted housing market (which historically drives storage demand around moves and life events) and elevated interest rates that keep refinancing costs high add further headwinds. Regulatory risk is also present, as a small number of jurisdictions have explored price caps on storage rental rate increases.
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Walnut is informational, not investment advice. This page is descriptive and not a recommendation to buy or sell CUBE or EXR; figures are approximate and dated (as of September 2026). Verify current data before investing.