Extra Space Storage

IThe business

Extra Space Storage rents boxes. A customer takes a room of 5 by 5 feet up to 20 by 20, pays by the month, and leaves when they like. That is almost the whole business. The company calls the rooms units and the buildings stores. At 30 September 2026 it owned or ran 4,411 stores in 43 states and Washington, D.C., with about 3.0 million units and 342 million square feet.³ It has been in storage since 1977 and listed in 2004, and it is headquartered in Salt Lake City.²

Not all of those stores are its own. At the end of 2025 it owned 2,018 outright, held 407 in joint ventures with partners who put in most of the money, and managed 1,856 for outside owners.² By September 2026 the managed count was 1,963 for others and 408 in joint ventures, and I work out about 2,040 owned stores C (calculated).³ The ownership shapes the profit. An owned store keeps all of its rent and pays all of its costs. A managed store pays a fee, and the company needs almost no capital to earn it.

About 2.4 million customers rented from stores the company owns or manages at the end of 2025. Customers who had left its same-store properties had stayed 17.0 months on average, and nearly all leases run month to month, which lets the company raise the rent on existing customers at least once a year.² The 10-K says customers choose mainly on price and on how near the store is to home or work.² That one sentence explains a lot about the business, and I come back to it in the next section.

Three ways it earns money

The first is rent. Property rental revenue was $2.90B in 2025, 86% of the total. The self-storage segment earned $1.98B of net operating income on it, after $918M of costs, a margin of 68% C (calculated).² The biggest cost is property tax at $327M, more than a third of all store costs and 11% of rent.² Payroll was $183M, marketing $70M and repairs $61M. Marketing is only 2.4% of rent C (calculated). That fits a business that finds most of its customers online, which the 10-K says it works hard at.²

The second is tenant reinsurance. When a customer rents a unit the company offers cover for the goods inside. An outside insurer writes it, and a wholly owned subsidiary reinsures all of the risk and keeps nearly all of the premium.² That brought in $353M of revenue and $284M of operating income in 2025, an 80% margin and about 13% of the two segments’ combined operating income C (calculated).² It is the most profitable thing the company does, and the least discussed. It is also regulated like an insurer, which is a risk I take up later.

The third is the platform. Management fees and other income were $129M in 2025, up 7%, and the company guides to about $138M in 2026.²³ It manages 1,963 stores for third parties and says it is the largest storage manager in the country.³ It also lends: bridge loans to storage owners stood at about $1.4B at an average rate of 7.8%, which earns interest and finds the next acquisition.⁶ And it holds a $300M preferred investment in NexPoint that pays 8.5%.⁶ These side businesses are why Core FFO per share is not just rent.

Where the stores are

The owned stores sit mostly in big metropolitan areas. The five largest states by owned store count are Texas with 267, Florida 256, California 227, Georgia 122 and Illinois 107, together 49% of the 2,018 owned stores C (calculated).² Utah, the home state, has 23 owned stores and 46 managed ones, a small part of the whole.² The company says it clusters stores around population centres to lower costs, and that tenants there pay for convenience.²

How it got this big

For years it grew by buying one store or one portfolio at a time, with a large share bought in the 2016 to 2022 years. Then in July 2023 it bought Life Storage in an all-stock deal. Each Life Storage share became 0.895 of an Extra Space share. The company issued 76,217,359 shares worth $11.35B and the total cost was $12.85B, with 757 stores that it owned outright.¹² The share count went from 134 million to 211 million C (calculated).⁷ That one deal is the key to reading the numbers since 2023, and it is a big part of the valuation.

Since then it has grown mostly by management contracts. Stores owned and managed went from 3,714 at the end of 2023 to 4,411 in September 2026 C (calculated), while the number it owns went from 1,976 at the end of 2024 to 2,018 a year later.¹²¹⁴²³ It sold 37 stores for $306M in 2025, and in the nine months to September 2026 it bought 22 for $152M.²³ The 2026 plan is $400M of acquisitions, which is small next to the $13.6B of debt it carries.³

The year so far

The nine months to September 2026 were better than 2025. Same-store revenue rose 2.3% and same-store expenses 0.1%, so same-store net operating income rose 3.2%.³ In the third quarter alone revenue rose 2.7% and net operating income 4.6%, with ending occupancy at 94.0% against 93.7% a year earlier.³ Core FFO was $6.37 a share for the nine months, up 3.9%, and the company lifted its 2026 guide to $8.40 to $8.50 from $8.25 to $8.40.³ I give the sources of that improvement later, because part of it came from lower repairs and insurance bills, which may not repeat.

IIThe moat

A durable advantage is a cost or a habit that a rival with money and talent cannot copy in a reasonable time. Storage is a local business. A customer picks a store within a few miles of home, mostly by price. So I ask a plain question: does Extra Space have anything that makes a store earn more than the store across the road?

I think it has four things, and each is real but limited. The first is data and pricing. The company sets the rate for every unit every day with its own system and says it runs one of the most dynamic online marketing programmes in the industry.² It can show up first in search and bid the rent up or down by unit size and time of year. A single store owner cannot match that, and it matters most for the stores it buys from them. The company says it adds stores to its platform and the results rise.² I cannot test that claim from the outside, and I note the margin gap below.

The second is the management platform. When an owner signs a contract the company runs the store, answers the phone, sets the price and takes a fee. The 10-K says this expands the footprint and data with little capital, and is a pipeline for later purchases.² Noah Springer built it. The company calls it Management Plus and says it is the largest in the sector with almost 2,000 stores.¹¹ A rival can build one. Public Storage will manage the joint venture it formed with National Storage Affiliates’ former unit holders.⁸ But it takes years to win the contracts.

The third is a low-cost brand with a big base. The company reported 8,393 employees and 2.4 million customers.² A larger base lowers the cost of marketing and of the call centre per unit. I cannot measure this directly. Marketing at 2.4% of rent is consistent with it C (calculated).²

The fourth is the balance sheet. A BBB+ rating from S&P and Baa2 from Moody’s mean it borrows at investment-grade rates, and the average rate on its $13.6B of debt is 4.4%.¹⁵⁶ It priced $550M of notes due 2032 in June 2026 at 4.90%.¹⁶ A small private owner pays more for a mortgage. That is a real edge when buying stores, but it is not the only way to buy, and a rival with the same rating gets the same price.

Now the limits. The 10-K says in its risk factors that there is significant competition from other operators and other storage alternatives, that development has increased in recent years, and that competitors’ actions can hold down its occupancy and rents.² The leases are short, so a bad year in a city shows up fast. And the biggest rival has just become bigger. Public Storage completed its purchase of National Storage Affiliates on 22 July 2026, for 0.14 of its share for each NSA share, and the combined company has more than 4,500 properties and 327 million rentable square feet.⁸ Public Storage put the combined enterprise value at $77B when it announced the deal, against my estimate of $49B for Extra Space C (calculated).¹⁷

So I call this a narrow advantage that is wide enough to earn a good return on the stores it owns, not wide enough to let it raise prices at will. What I look for is proof in the numbers: same-store occupancy and rent growth above the sector. It has had that in 2026 so far. In 2024 and 2025 it did not, when same-store net operating income fell 1.5% and 1.7%.¹⁸⁴ A real advantage does not switch off for two years. That tells me the stores are cyclical and the platform has been tested.

IIIThe competitive advantage

The cleanest comparison is with the two other large public storage companies. Public Storage is the largest by value. CubeSmart is smaller and has fewer stores. National Storage Affiliates, the third, no longer trades; it merged into Public Storage in July 2026.⁸ The table puts them side by side on the latest quarter and the 2026 guide.

Two things stand out. Extra Space is doing better than the other two this year. Occupancy is 1.8 points above Public Storage and 4.1 above CubeSmart, same-store profit is growing the fastest, and Core FFO per share is the only one of the three growing near 4%. That is evidence for the operating advantage. In its own words the company’s differentiator is pricing, customer acquisition and growth.³ Public Storage’s chief executive says the whole industry is improving, with lower churn, higher occupancy and better move-in rates.⁵ So some of the gain is the sector, and some is Extra Space.

The second thing is the margin. Public Storage reports a same-store margin of 78% in its deal deck. I calculate Extra Space’s at 71% for 2025 from its release C (calculated).¹⁷⁴ The definitions differ, but the gap of seven points is too wide to be a technicality. Public Storage says that in overlapping markets its margin runs about nine points above the portfolio it is buying.¹⁷ Part of Extra Space’s gap may be newer stores still filling up and the stores that came with Life Storage. The filings do not let me measure how much. What I can say is that the leader runs a tighter operation, and the buyer of the third-largest chain says it will make that chain look like itself.

So the company is better than most, and the leader is better still. The price is a little under the leader’s multiple, 19.1 against 20.2 times Core FFO, and above CubeSmart’s 17.7 C (calculated). I do not find a discount to the leader that pays me for the margin gap.

Scale that shares

One more thing about scale. It lowers some costs, but for a storage company it also adds exposure. The more stores a company owns in a city, the more it feels a new supply wave in that city. Extra Space has 267 owned stores in Texas and 256 in Florida, two of the states where building has been heaviest.² The 10-K says development has intensified competition, and it expects it to continue.² So scale helps with cost and hurts with concentration. On balance I think the first wins in a normal year and the second wins in a bad one.

IVManagement

A new chief executive starts on 1 January 2027. Noah Springer says he learned from each of the three before him: Ken Woolley, Spencer Kirk and Joe Margolis.¹¹ Margolis began working with the company in 1998 through a joint venture, joined the board in 2005 and became chief executive in 2017.¹¹ On 24 August 2026 the company said he will retire on 31 December and become an adviser to the board. Noah Springer, the President since January 2026, becomes chief executive on 1 January 2027.¹¹²⁰ The chief financial officer also changed in July 2025, when Jeff Norman took over from Scott Stubbs.¹⁰ That is a new chief executive and a new finance chief within eighteen months.

The succession is the one piece of news I would study most. Springer is not an outsider. He has been with the company for twenty years, and the August release says he built the management platform that is its fastest-growing business.¹¹ I read that as continuity, which is good for a company that has run well. It also means the choice of new capital allocator is made by the same board that chose the strategy. I cannot judge a person I have not met. I can judge his job, and it is a big one: a $13.6B debt stack to refinance, a merged peer next door and a stock priced at 20 times what an owner takes out.⁶⁸

How they are really paid

Margolis was paid $14.19M in 2025, of which $11.14M was stock.¹⁰ The ratio of his pay to the median employee’s was 269 to 1.¹⁰ The average for the other named executives was $3.67M.¹⁰ The pay itself is not what bothers me. The measures are.

Half of the annual bonus depends on Core FFO against a target. The payout runs from 50% if Core FFO is under 95% of target to 150% above 105%.¹⁰ The board sets the target each year and can adjust it for unbudgeted items.¹⁰ The other half is judged on corporate goals the board picks. The stock awards, called performance stock units, run over three years. Half depend on growth in Core FFO per share, half on total return against peers, with a swing of up to two times target.¹⁰ That is a sound design in outline. It rewards per-share growth, not size.

What does it pay executives to do? To grow Core FFO per share, which is not owner cash. Core FFO ignores the money spent to keep stores in shape and adds back the non-cash interest on the Life Storage debt discount.³ Nobody is paid for AFFO. A team that buys a store and funds it with cheap debt lifts Core FFO per share at once, whatever the long-run return. I do not say they do this. I say the pay allows it, and it is a reason I look at the capital record below.

The record on the awards is the best evidence, and it is honest. The 2023 performance stock units covered 2023 to 2025. They vested at 35.5% of target. The total return piece landed at the 33rd percentile of the REIT index, which paid 66% of that half. Cumulative Core FFO per share was $24.45 against a target of $27.03 and a floor of $24.33, which paid 5% of that half.¹⁰ The first-year target for the 2025 awards was $8.27 and the company earned $8.21, which paid 60% of that part.¹⁰ So the pay did respond. It paid little for flat per-share results. I count that in management’s favour.

Their own money

Margolis reports 213,785 shares, including 23,459 restricted, worth about $34M at $161.04 C (calculated).¹⁰¹ That is more than twice his 2025 pay. All 20 directors and executive officers together hold 2,034,634 shares, under 1% of the company and about $328M C (calculated).¹⁰ Directors and officers must hold set amounts under ownership guidelines, and hedging is banned.¹⁰ Woolley’s shares are the exception: 400,000 of his shares secure loans of about $40M, which is permitted but limited.¹⁰ The founder holds a meaningful stake and has borrowed against it. That is not a sign of trouble at his scale, and I note it.

What they did with the money, over a full cycle

I take 2016 to 2025 as the cycle. It includes a pandemic, the 2021 and 2022 boom in storage rents, a merger, and the 2023 rate shock. In those ten years operating cash flow added up to $10.6B. Dividends took $7.3B, cash purchases of stores $7.3B and development $0.7B C (calculated).⁷ Buybacks were small, $0.28B in three years, until 2026, when $329M went in at an average of $136.81.⁷³ The big item was mostly not in cash. Of the $12.85B Life Storage price, $11.35B was paid in shares.¹²

I draw three conclusions. First, they paid shareholders well: 13.4% a year on the price and the dividends, and the dividend more than doubled to $6.48.¹⁷ Second, growth in the last four years has come from the deal, not from the stores. The merger took the share count up 58% in a year, and Core FFO per share is now where it was in 2022. They paid in stock priced at $148.96 and the shares trade at $161.04 today, so on price alone the deal has not been a loss.¹² But Core FFO per share is where it was in 2022, so it has not yet lifted per-share cash either. I cannot say it created value.

Third, the recent behaviour is good. They bought back shares in 2025 at $129.10 and in 2026 at $136.81, both well below today’s price, and did not issue stock on the at-the-market programme in 2025 or in the third quarter of 2026.²³ A team that buys back stock when it is cheap and holds off selling it is thinking about per-share value. The company authorised a new $500M programme on 15 October 2026.³ Buying at $161 is a different decision from buying at $129.

There are things I do not like as much. The company recorded a $76M loss on real estate sold or held for sale in 2025 and a $52M write-off of the Life Storage trade name in 2024.²¹⁴ Both are small beside $29B of assets, and both say some of the merger and some of the stores bought in the boom were worth less than paid. I count them as the price of a decade of buying.

VFinancials

A real estate company’s accounts hide as much as they show. Net income is struck after depreciation, and depreciation here is a fiction. Depreciation was $715M in 2025.² Buildings do wear, but well-kept storage buildings tend to hold their value, and the charge is a fixed schedule, not a measure of what it costs to keep them up. So no one values these companies on earnings. They use funds from operations, or FFO, which adds depreciation back and takes out gains and losses on sales. The company goes one step further and reports Core FFO, which also adds back some costs of the Life Storage merger. I want a third step, AFFO, adjusted FFO, which is what an owner could actually take out after keeping the stores in shape. EXR does not publish AFFO, so mine is an estimate.

Why not plain earnings

Earnings per share were $4.59 in 2025. Core FFO per share was $8.21. The difference is 79% of earnings, and nearly all of it is depreciation C (calculated).⁴ Price over trailing earnings is 32.7 times C (calculated). That is a number that tells me almost nothing, because it is mostly accounting. Price over Core FFO is 19.1 times the 2026 guide C (calculated). That tells me more. But Core FFO leaves out the money spent to keep stores in shape, which is a real cost every year, so I go one step further. The table walks through it.

The $0.50 is the number I can least see. Extra Space does not say how much of its $143M of development and redevelopment spending, or its $21M of equipment, is upkeep. Public Storage does: its maintenance capital spending was $123M for the nine months of 2026 and $138M for the same months of 2025.⁵ Spread over the 229 million wholly owned square feet it had before the merger, that is $0.72 a square foot at the 2026 pace and $0.80 at the 2025 pace C (calculated).⁵¹⁷ The 2026 pace is a little too high, because the National Storage Affiliates stores arrived in July. Applied to Extra Space’s 153 million owned square feet, it is $110M to $122M a year, or $0.50 to $0.55 a share.² I use $0.72 a square foot and show a range from $0.55 to $0.90. The honest statement is that it could be $84M or $138M, and I cannot narrow it from the filings.

The result is about $7.80 a share, 7% below Core FFO. That is not a large gap, which says something good about the business: storage buildings need little capital. The fall from earnings is far bigger and is not a problem at all.

Ten years

The chart shows the pattern. From 2016 to 2022, Core FFO per share rose from $3.85 to $8.44, helped by the 2021 and 2022 boom in rents. Since then it has gone $8.10, $8.12, $8.21 and a 2026 guide of about $8.45 R (reported).^2123221843 That is four years of roughly flat results, after a merger that increased the share count by 58% in 2023. The long-run growth rate, 2016 to 2025, is 8.8% a year, but it is the first six years that did it.

Same-store net operating income tells the same story from the stores. It rose 9.2% in 2016, then slowed each year to a fall of 0.7% in 2020 when the pandemic hit, jumped 19.7% and 20.3% in 2021 and 2022, and then fell back to 2.8%, minus 1.5% and minus 1.7% in 2023, 2024 and 2025.^{2128272625242322184} The 2021 and 2022 numbers were a once-in-a-lifetime pull-forward of demand. The last two years were the hangover, with new supply and low housing turnover. In 2026 the figure is back up at 3.2% for nine months and 4.6% in the third quarter.³

I want to say something about that third quarter. Same-store revenue grew 2.7%, which is good. Same-store costs fell 1.8%. Within that, repairs and maintenance fell 20.0%, insurance 16.5%, payroll 4.6% and marketing 6.8%, while property tax rose 4.9%.³ Repairs and insurance do not fall for ever. The 4.6% profit growth was helped by about 0.9 points from those two lines alone C (calculated). The company guides to 2.5% to 3.5% for the year.³

The dividend is $6.48 a share. It was $2.93 in 2016, $6.00 in 2022 and $6.48 in 2023, and it has not changed since.⁷ It is 79% of Core FFO and 83% of my AFFO C (calculated). A company that pays out four fifths of what it earns and keeps the rest has little room to grow through retained cash, so growth must come from the stores or from outside money. I read a flat dividend for four years as honest: it was raised when it could be, and it was not cut.

Operating cash flow was $1.85B in 2025. Dividends on common stock took $1.37B, and another $63M went to holders of operating partnership units.² What was left, about $0.41B, funded part of $0.93B spent on stores and $0.14B on development. The rest came from $368M of store sales and net borrowing.² So the company does not fund growth from the cash it keeps. It funds it by selling some stores and borrowing more. That works while credit is cheap. It is the reason for the next two charts.

Debt is the part of the picture I watch most. At 30 September 2026 the company owed $13.62B at face value, at an average rate of 4.4%, with an average life of 4.0 years.⁶ Cash was $115M, so net debt was $13.5B. Against the $2.54B of earnings before interest, tax, depreciation and amortisation that the credit agreement uses, that is 5.3 times C (calculated).⁶ The covenants are loose: debt is 35.6% of asset value against a 60% limit, and fixed charges are covered 4.0 times against a floor of 1.5.⁶ Moody’s and S&P rate the company Baa2 and BBB+, both stable.¹⁵ Credit is not a threat. The cost of refinancing is.

About 80% of the debt is at fixed rates. The part that matters is what matures. Two blocks of low-rate bonds sit in the schedule. Some $2.05B of notes carry rates of 2.2% to 2.6% and mature between 2030 and 2032. Another $2.5B carry 3.5% to 4.4% and mature between 2027 and 2030.⁶ In July 2026 the company priced new notes at 4.90%.¹⁶ If all of that $4.6B is replaced at 5.0%, the extra interest is about $82M a year, or $0.37 a share E (estimate). That is about 4.4% of Core FFO, and it arrives over six years. It is a drag I build into every case. It is also the reason the Life Storage add-back in Core FFO matters: that $0.22 a share is the accounting reversal of a discount on debt that carries below-market coupons.⁴ The coupons are low now. They will not stay low.

The price tells its own story. In October 2023 the market paid 12.8 times Core FFO, the low of the decade, when the ten-year Treasury yielded 4.88%, almost what it does today.¹²⁹³⁰ In October 2021 it paid 28.6 times. Today it pays 19.1 times the guide. The ten-year median is 19.7 times C (calculated). So the stock is about average for its own history, and its history includes years when rates were half what they are now.

Here are the numbers, ten years in one place.

VIValuation

Start with what would go wrong

Before any numbers, I ask what would most likely make this a bad investment from here, and work back from that. For Extra Space the stores are not the most likely problem. The price and the cost of money are. Here are three ways it goes badly wrong, in the order I think most likely.

1. The business does fine and the multiple falls. The stock now trades at 20.6 times my AFFO. In October 2023, with the ten-year Treasury at 4.88%, almost where it is now, it traded at 12.8 times Core FFO C (calculated).¹²⁹³⁰ If my base AFFO comes through and in 2036 the market pays 17 times it, the return from $161.04 is about 6.2% a year with dividends E (estimate). That is only 1.3 points above a Treasury. Nothing has to break for this to happen.
2. Cheap debt rolls into dear debt, and costs rise faster than rents. About $4.6B of bonds at 2.2% to 4.4% fall due by 2032, and the company priced new notes due 2032 at 4.90% in June 2026.⁶¹⁶ Refinancing all of it at 5% takes about $0.37 a share out of AFFO E (estimate). At the same time property tax is a third of store costs and grew 11.8% in 2025, and 3.3% in the first nine months of 2026 on the same-store pool.²³ If rent growth stays near 2.5% while costs grow 5%, store profit growth falls to about 1% C (calculated).
3. Supply or a housing downturn cuts rents for more than a year. Storage demand follows people moving, which follows housing turnover. Same-store profit fell in 2020, 2024 and 2025, and 2026 is the first year of recovery.²⁵¹⁸⁴³ Public Storage has just bought a rival with more than 1,000 stores and says it can lift revenue 11% to 15% on acquired stores.¹⁷ If it prices to win share, rents are the lever.

I can’t put honest odds on the second and third. I can show what the first does, and I do below.

What an owner can take out, and how far it is from reported earnings

The tables so far walk from earnings of $4.59 to Core FFO of $8.21. I take the further step to what an owner could pull out of the business without letting it run down. For 2026 that is $7.80 a share, with a range of $7.68 to $7.92 E (estimate). Earnings are $4.92 over the last four quarters.³⁴ So the cash an owner can take is 1.6 times earnings C (calculated). A plain price-to-earnings figure of 32.7 would make this stock look as dear as a technology company. On AFFO it is 20.6. That is the reason I do not value it on earnings.

Stock pay is already inside these numbers, because FFO does not add it back. In 2025 it was $35.5M, or $0.16 a share C (calculated).² I did not take it out twice.

What the price implies

The cap rate row needs a word. A cap rate is the store profit divided by what the stores are worth. If I take the market value, add the debt, and subtract my values for everything that is not a store, the stores are being priced at a cap rate of 4.8%. At the close on 30 September it was 5.6%. Five weeks moved the price by 22%.¹⁶ I show later what value that implies.

Reverse DCF: what the price needs

At my 8.5% hurdle, the price needs AFFO per share to grow 7.4% a year for ten years, to about $15.91 in 2036, and the dividend to grow with it C (calculated). Core FFO per share grew 8.8% a year from 2016 to 2025, but it was flat for the last four of those years and the first six had a merger, a pandemic boom and rates near zero in them.²¹⁴ My base has 3.7% a year after the refinancing drag. Even with that, it does not reach the price. At a 7.5% hurdle the price needs 4.9% a year, which is within reach of my bull case. So the verdict turns on the rate I require.

The discount rate

I discount at 8.5%. The capital asset pricing model with the 4.90% ten-year Treasury and Damodaran’s 4.20% implied equity risk premium gives 7.9% on Extra Space’s beta against the market over 119 months, 9.4% over 60 and 10.4% over 36 C (calculated).²⁹³¹³² The three betas are 0.71, 1.07 and 1.30, from price returns with dividends not added. The shorter windows are higher because the stock has moved with interest rates since 2022. I use 8.5%, the rate on my Costco page, and not the 10.4% of the shortest window. My Enbridge page uses 9.0%. A REIT with BBB+ credit has less business risk than its beta suggests, and more rate risk. I do not want my verdict to depend on a choice I can’t defend to the decimal. So I show the whole range below. At 9.0%, the dividend discount base falls from $121 to $112.

The other end matters too. The best alternative use of the same dollar is a note from the company itself. Its senior unsecured notes due 2032 pay 4.90%, from a BBB+ borrower, and rank ahead of the shares.¹⁶¹⁵ A holder of the shares needs a reason to expect more than that, and the AFFO yield is 4.8%, with growth on top. On this site the closest comparison is Enbridge, another income stock with a big debt stack: its page has a base return of 9.9% a year at a 9.0% rate, a dividend alone yielding 5.6%, and a price 6% below its base value. Extra Space’s dividend yields 4.0%, and my base returns 7.0% at today’s price.

Three ways to value it, and one rule

I value the company three ways and take the same weight from each. The rule is set before the numbers: bear, base and bull are the plain average of a dividend discount, a net asset value and a multiple of AFFO. None of the three is tuned to agree with the others.

The dividend discount is the cash an owner is paid. I take AFFO per share, grow it in each case, pay out 83% of it as dividends, discount at 8.5%, and add a value after 2036 equal to the dividend divided by the discount rate less growth. The net asset value values the stores at a cap rate, the insurance and management businesses at a multiple, and adds the loans and joint-venture stakes at book, less debt. The multiple method applies a price to AFFO taken from the stock’s own history. Each is a different way to be wrong.

Net asset value

This method asks what the stores would sell for. It is the standard way to value a REIT, and its weak point is the cap rate. The company’s own bond covenants use 6.75% and its credit facility 6.25% to value its stores, but a lender uses a cautious number on purpose.⁶ The market’s own cap rate on this stock was 5.6% on 30 September and 4.8% today E (estimate). Public Storage bought National Storage Affiliates for an enterprise value of $10.5B, but the deal brought stores at 84% occupancy and a joint venture, and I cannot get a clean cap rate out of the deck.¹⁷ So I use 6.5% in the bear, 5.75% in the base and 5.0% in the bull, which brackets the lender’s numbers and the market’s. I can’t observe private sale prices in a filing. The grid shows what each rate gives.

To get from stores to shares I add the $1.7B of loans and preferred investments at their balance sheet value and the $1.0B of joint venture stakes at book, then subtract $13.6B of debt at face value and $48M of preferred units. I divide by 218.1M shares and common units.¹⁵ The stores themselves are worth $35.6B at 5.75% E (estimate). To reach today’s price the cap rate has to fall below 4.8%.

The multiple method, and the exit hidden in a discount

The multiple method asks what the market has been willing to pay. Over ten Octobers it paid 12.8 times Core FFO at the lowest and 19.7 at the median C (calculated).¹ Core FFO is 1.08 times my AFFO, so those become 13.8 and 21.3 times AFFO. I use 13.8 in the bear, the average of the two, 17.6, in the base, and the median in the bull. The low was struck at a ten-year yield like today’s. The median was struck mostly at yields half as high.

A dividend discount has a multiple hidden inside it. When I stop in 2036 and capitalise the dividend, I am assuming a buyer then pays 13.0, 14.2 or 15.6 times AFFO in the three cases C (calculated). Today’s price is 20.6 times. That hidden gap is most of why the dividend discount sits below the price. Here is what the base case returns if the buyer in 2036 pays more.

Only the last row, a buyer in 2036 who pays what buyers pay today, returns more than my 8.5% hurdle. That is the real bet in this price: not a faster business, but a multiple that stays at the level of a ten-year-low rate world while rates are not low.

Three cases

My base case is Extra Space carrying on roughly as it has in 2026: same-store profit growing 3% to 4% a year, the management platform adding a few hundred stores, and the company buying a few hundred million dollars of stores a year with its cheap cash, less the refinancing drag. That gives AFFO of $9.42 in 2031 and $11.18 in 2036, and Core FFO of about $10.1 in 2031 E (estimate). The bull case has same-store profit growing near 5% to 6% a year for five years, as it did on average in 2017 and 2018, with the drag small because rates fall. The bear case has rents flat for a time, costs rising, and the drag larger because rates stay high E (estimate).

What I can’t judge

Some inputs I can’t know, and I would rather say so than pretend. I don’t know how much of the capital spending is upkeep; I show a range from $84M to $138M. I don’t know the cap rate at which stores sell today, because deals are private and the company doesn’t say. I don’t know what rates will do, and that matters more than anything else on this page. I don’t know how much of the 2026 gain is the cycle and how much is the company, and the third-quarter drop in repairs and insurance will not repeat. And I can’t know how the new chief executive will use the balance sheet. That last one I can only watch. Where I can’t know, I give a range and a reason.

Multiply it out

My base needs several things at once. Same-store profit growing 3% a year or better on average: I would give that 50%. Property taxes and insurance staying under control: 70%. No recession or supply glut cutting rents for a year or more: 75%. Refinancing near 5%: 80%. Management buying and buying back at good prices: 80%. Multiplied, that is about 17% E (estimate). They overlap, since good rents help every other line, so the true figure is higher, perhaps a quarter. And missing one doesn’t ruin the case. But the price needs more than my base. It needs all of that and a buyer in 2036 who pays a ten-year-low-rate multiple.

Quality and price are two questions

How good is the business? Good: high occupancy, a strong platform, steady profit growth in 2026, and an investment-grade balance sheet. How good is the price? Poor, on my numbers. At $161.04 the price is 25% above my base and 3% above my bull, and the dividend discount alone, which is the most direct measure of what an owner is paid, finds $149 even in the bull. A good business can be a poor purchase at the wrong price. On this evidence that is what this looks like. I say that knowing the stock has done what the history asks of it: it returned 13.4% a year over ten years. The question is the next ten.

The margin of safety

My margin-of-safety price is $90, 30% below my base value. At $90 the dividend discount returns 9.1% a year in the bear, 10.5% in the base and 11.9% in the bull C (calculated). The bear case at that price returns a little above my 8.5% hurdle. A 30% cushion is what I use for a business with predictable rents; here the debt and the rate sensitivity argue for it. The price is 79% above it. The stock last closed below $90 in May 2020, and it last closed below my bear value of $104 on 1 November 2023, as rates peaked.¹

VIIThe case for the price

What most people miss

Tenant reinsurance earned $284M on $353M of revenue in 2025, an 80% margin, and was 13% of the two segments’ operating income C (calculated).² That is about $1.28 a share before overhead and tax C (calculated). Next, the 2026 recovery is partly cost relief: repairs fell 20.0% and insurance 16.5% in the third quarter, worth about 0.9 points of the 4.6% profit growth C (calculated).³ And Core FFO per share was $8.44 in 2022 and is guided to $8.40 to $8.50 now, after a merger that added 58% to the share count.²³³¹²

The bull case

In plain words: Extra Space is the best-run public storage company, it is past the supply wave, and its management platform keeps adding cash. The company makes this case itself. In the October 2026 release Joe Margolis said the platform continues to deliver, with Core FFO per share up 4.3% in the quarter and accelerating same-store performance, and named pricing, customer acquisition and growth as what sets it apart.³ In August the chairman, Ken Woolley, said that under Margolis the company delivered the highest ten-year total shareholder return in the storage sector.¹¹ My own figure is 13.4% a year C (calculated).¹⁷

The sector helps. Public Storage and CubeSmart, in their own releases about their own portfolios, both raised 2026 guidance, and Public Storage spent $10.5B on a rival.⁵⁹¹⁷ Those are not views on Extra Space, and I found no outside investor or analyst with a published, current view that I could check against a filing, so I name none.

Against reality

Much of the bull case is true today: occupancy is 94.0%, profit is growing and the guide has risen.³ My bull case gives it more, with same-store profit growing 5% to 6% for five years, and is worth $157 E (estimate). So if Extra Space holds that growth and hits its guidance, the high $150s is possible. The price is $161.04. It needs AFFO per share to grow 7.4% a year for ten years, or Core FFO of about $12 a share by 2031 against my base of $10.1 C (calculated). Core FFO per share grew 8.8% a year over nine years and has not grown in four.²¹⁴³

The stock closed at $131.51 on 30 September and $161.04 five weeks later.⁶¹ That is a 22% move on a guide that rose about $0.13. It looks like the market repricing rates and the sector, not the company, and it may be right.

What a 10x would take. Ten times $161.04 is $1,610 a share, about $351B of market value on today’s share and unit count C (calculated). At the same 19.1 times Core FFO that needs about $84 a share of Core FFO, or $18.6B a year in total, against $1.86B guided for 2026 C (calculated).³ In ten years that is a growth rate of 26% a year. Public Storage and National Storage Affiliates together had an enterprise value of $77B when the deal was announced, so a tenfold Extra Space would be worth more than four times that.¹⁷ Extra Space itself rose 2.3 times in ten years, and Core FFO per share rose 2.2 times, with a merger inside the decade C (calculated).¹²¹³ This is a mature, rent-collecting business with a dividend that takes four fifths of what it earns. A tenfold move is not plausible, and I would not build a case on it.

Where I come down

The third quarter moved me, and so did pay that responded to results, but the price did not: it rose 22% in five weeks on a $0.13 change in the guide, and Core FFO per share is no higher than in 2022. Same-store profit growth near 4% for several quarters with property tax under control would raise my values, and so would a lower ten-year Treasury. My values stay at $104, $129 and $157.

VIIIRisks, and what would change my view

The three ways this goes badly wrong are at the start of Valuation. These are the rest.

• Leadership change. A new chief executive starts on 1 January 2027, and a new finance chief joined in July 2025. Both are internal, and the board approved the succession unanimously.¹¹¹⁰ I cannot judge how a new team will use $13.6B of debt and a $500M buyback programme.
• Competition from a bigger Public Storage. It now has more than 4,500 properties and 327 million square feet, and says it will lift revenue on acquired stores by running them on its own system.⁸¹⁷ A rival that big can price to win share. Public Storage guided to same-store profit between down 0.8% and up 0.2% for 2026, so it has less profit growth to protect.⁵
• Property tax and reassessment. Tax is $327M and 36% of store costs, and it grew 11.8% in 2025.² A local government can reassess a store after a sale. The company buys stores, so this risk is in its growth plan.
• Regulation. After wildfires in 2018, 2019 and early 2025, California and some localities capped rents at some stores, and similar rules could return.² The tenant reinsurance business is regulated like an insurer, with licences that regulators can suspend or revoke.² It was 13% of the two segments’ operating income in 2025 C (calculated).²
• Lending and joint ventures. The company holds about $1.4B of bridge loans at 7.8% to storage owners, many of them for stores it manages, plus a $300M preferred investment.⁶ In the third quarter it recorded a $13.9M impairment on a joint venture interest.³ These earn more than stores do and carry more risk. I do not know the loss history.
• Concentration and weather. Texas, Florida and California hold 750 of the 2,018 owned stores, and the 10-K lists hurricanes, floods and wildfires as risks and notes that insurance deductibles are rising.²
• Information. The company does not publish AFFO, a cap rate for its stores or its recurring capital spending. My AFFO and my net asset value rest on estimates that I explain, and the answer moves with them.

What would raise my base value: the fourth-quarter report, expected in February 2027, showing same-store profit growth above 3% with property tax under control and a 2027 guide above $8.90. What would lower it: a guide for 2027 below the 2026 range, new bonds priced above 5.5%, or occupancy falling below 92%.³