Costco Sales Resilience And The Case For Premium Shares

I stood in a warehouse parking lot last month, half watching the fuel canopy and half watching carts the size of small boats roll toward the exit. Gas prices have been ugly for months, the kind of ugly that makes a normal commute feel like a second rent payment, and yet the line at the pumps was not thinning. People filled up, then they went inside. That small sequence is the whole story of why a membership warehouse can look oddly calm when the rest of retail is sweating. September’s numbers landed in that same mood: loud on the headline, quieter and more useful once you peel the fuel effect away.

Overall same-store sales, the figure most people casually call comps, rose 11.4% in September. Strip out gasoline and currency swings and the core number was 7.6%. The pace quickened versus August. A prominent market commentator, the sort who talks stocks the way other people talk weather, called the gasoline-adjusted U.S. print roughly 8% and treated that as the number that actually matters. On a rough market day the shares still managed to climb close to 1%. They were already up more than 5% from the late-September earnings print that beat expectations. None of that makes the stock cheap. It does make the recent resilience harder to shrug off.

Why September Comps Still Matter When The Multiple Looks Rich

A forward price-to-earnings ratio a little above 41 is not a casual number. It is more than double the broad market’s forward multiple. You do not get to own that kind of premium on vibes. You earn it, month after month, by showing that traffic and ticket still hold when households are picky. I’ve found that investors forgive a high multiple for a warehouse club far longer than they forgive one for a fashion chain, but forgiveness has a shelf life. September was one more month on that shelf.

The useful debate is not whether 11.4% looks impressive. Of course it does. Fuel prices, pushed higher by oil markets still distorted by conflict tied to Iran, inflate the headline whenever the pump is busy. Gas is barely profitable. It is also the front door. A record year in the fuel business, which management confirmed on the recent fiscal fourth-quarter call, means more cars in the lot and more chances that a tank fill turns into a rotisserie chicken, a pallet of paper towels, and a membership that renews. Take the fuel out and you are left with something closer to the real store. That core print, mid-to-high single digits, is the one I keep coming back to.

Strip the pump out of the story and you are no longer grading a commodity. You are grading whether people still trust the building.

Perhaps the most interesting aspect is how ordinary the strength looks once you sit with it. This is not a viral product cycle. It is groceries, household basics, and the occasional treasure-hunt item, sold to people who already paid for the right to walk in. When inflation stays sticky on everyday goods, that paid right starts to feel less like a fee and more like a hedge. A market voice put it bluntly enough: when times get a little tougher, shoppers go where the unit price is kinder. I buy that, with one caveat. Kindness only works if the renewal habit holds.

Reading The Headline Versus The Core

Monthly sales reports are a peculiar genre. They arrive fast, they move the stock for an afternoon, and they are easy to misuse. A single weekend shift can dress up a month. Currency can flatter an international print. Fuel can do both at once. The disciplined read is a small stack of comparisons, not a victory lap.

Here is how I break the September release into pieces that actually change a view.

• The 11.4% overall comp is the crowd number. It includes fuel and foreign-exchange noise, so it flatters.
• The 7.6% core comp, excluding gas and currency, is the cleaner store-level signal.
• The roughly 8% U.S. figure with gasoline removed is what domestic-focused holders should underline.
• The acceleration versus August matters more than the absolute level, because it pushes back on a slowdown narrative.
• The calendar quirk around a later Labor Day weekend is the footnote a cautious desk will not let you skip.

One research team liked the broader takeaway: the chain keeps delivering value at the exact moment shoppers are hunting for it. Another desk was cooler. It agreed the U.S. core print beat published estimates, then noted that plenty of investors had already penciled in something like 8% to 9%. Adjust for the Labor Day timing, that more cautious view estimated, and core U.S. comps might have landed nearer 7.3%. Both can be true. A beat against the formal consensus and a milder beat against the whisper are not the same emotion.

I lean toward the first reading without ignoring the second. A 7% handle, even haircut for a holiday shift, is not a cracked model. It is a business still taking share in the aisle that matters most, food and staples, while discretionary retailers argue with their own traffic counters. Short sentence on purpose. That distinction is the whole premium.

Gas As A Loss Leader That Refuses To Behave Like One

Call the fuel operation a classic loss leader and you are only half right. Margins are thin enough that “barely profitable” is the fair phrase, not a slogan. The strategic yield shows up in the building behind the canopy. Below-retail pump prices pull cars in. Cars become members. Members become the recurring fee stream that makes the low merchandise margin tolerable. It is a slightly odd machine, and it works best when households are angry about the price of a gallon.

Elevated oil, with the Iran-related supply scare still in the background, has been a consumer pain point all year. Management said the gas business just posted a record year. That is not a reason to model fat fuel profits into next year. It is a reason to treat traffic as partly subsidized by a price gap at the pump. If crude cools, the headline comp will look less dramatic and the core number will have to carry the story alone. September already gave a preview of that handoff, and the core did not fold.

There is a household version of this that rarely makes the models. Someone drives in for a cheaper fill-up, remembers the milk is out, and leaves with a cart that was not on the mental list. I have done the unplanned-cart thing. Most members have. The chain does not need every visit to be a stock-up. It needs enough of them to keep the renewal feeling rational.

Inflation, Tariffs, And The Choice To Cut Price

Sticky inflation in groceries is the quiet co-author of these comps. Shoppers have become more discerning, which is a polite way of saying they are tired of paying up for the same box. A membership, buy-in-bulk model was built for that mood. The recent twist is that management has fresh room to push prices lower, not just hold them.

A tariff refund of about $184 million has already been put to work on everyday goods. On the earnings call the company said that refund was only a little more than one-third of what it is owed. Additional refunds, if they arrive as expected, could fund another round of cuts. A supportive research note argued exactly that: more refund money might mean more price investment, and price investment is how you keep a value reputation from going stale.

I like the logic, and I would not treat it as free. Cutting price protects traffic and can pressure the merchandise margin in the same quarter. The market has historically given this operator the benefit of the doubt on that trade, because the fee income and the purchasing scale sit underneath it. Still, “we got money back and we gave it to members” is a strategy, not a miracle. Watch whether the next few monthly reports show the core holding after the easy comparison with a hot fuel tape fades.

A refund that becomes a lower shelf price is more interesting than a refund that becomes a one-time earnings bump.

A reading of how value retailers tend to spend windfalls

There is also a political layer investors should not romanticize. Tariff math moves with policy. What was owed can be delayed, trimmed, or contested. Modeling the full remaining refund as guaranteed price ammunition is how people get ahead of the filings. The cleaner statement is narrower: some money has already arrived, more may follow, and management has shown it prefers the shelf to the margin trophy.

What The Stock Has Already Priced In

Shares perked up after the fiscal fourth-quarter report on September 24, then added a bit more on the monthly sales. In a soft tape, a near-1% gain on “very good numbers,” as that commentator put it, is a small tell. Buyers were waiting for an excuse. They got one that was good enough, not spectacular enough to reset the debate about the multiple.

A little over 41 times forward earnings is the number that keeps skeptics in the trade. Double the broad market is a lot of faith in duration. You are paying for membership economics, for a balance sheet that does not need heroics, and for a habit that has survived several consumer scares. You are not paying for a cheap entry. Anyone telling you otherwise is selling a story the quote will not support.

Look at that last row for a second. A 5% relief rally after a beat is not a mania. It is a stock that had been doubted on membership trends getting permission to breathe. Permission is not the same as a re-rating. If the next monthly report disappoints, that 5% can leave as easily as it arrived. I have watched this name do exactly that in prior soft patches: give a little, take a little, and leave the multiple almost untouched.

Membership Growth Is Still The Argument That Will Not Die

Fiscal fourth-quarter revenue and earnings beat. The worry that trailed the beat was slower membership growth and renewal. It is the worry a longtime commentator has flagged before, and it is the wildcard both the supportive desk and the cautious desk keep in their forecasts. Comps can look fine for a while on a base of existing members shopping harder. The fee stream, and the cultural right to a premium multiple, needs new sign-ups and stubborn renewals.

Think of the membership like a subscription that happens to come with a forklift aisle. Churn does not show up in a single bad Saturday. It shows up as a renewal rate that slips a tenth here, a sign-up pace that misses there, and a narrative that quietly shifts from “everyone needs a card” to “the people who have a card are shopping.” Those are different businesses. The second one can still be excellent. It just does not deserve quite the same eternity in the multiple.

What would ease that worry? A few boring things, which is usually how this story improves.

1. Renewal rates that stop being described as a concern on the next call.
2. Paid household growth that re-accelerates rather than merely stabilizes.
3. Executive-tier mix that holds, because the higher fee is where incremental income hides.
4. Traffic that remains positive even in a month when fuel comps turn from a tailwind into a headwind.
5. Price investments that do not have to be explained as a defense against a fading new-member pipeline.

None of those are in the September sales snapshot. Monthly reports are about the register, not the card desk. That is why one more sales release, due before the fiscal 2027 first quarter, can move the stock without settling the membership question. Holders should enjoy the comp and keep the renewal file open. I would.

Delivery Partnerships And The Aisle That Left The Building

The other growth thread from the recent call is less romantic and more practical. Delivery options for online orders are widening. Partnerships with two large on-demand platforms went nationwide, sitting beside a long-running relationship with a grocery delivery service in the United States and Canada. The finance chief framed the new deals as a complement, not a replacement. That wording matters. This operator has never wanted to become a pure delivery company. It wants the warehouse to stay the profit center and the doorstep to become another way in.

Is that a needle-mover next quarter? Probably not in a way you can isolate. Over a couple of years it can matter, especially for members who treat the card as a household utility and do not feel like burning a Saturday in a concrete cathedral. The risk, and there is one, is fee leakage and a shopper who never sees the impulse endcap. Bulk retail makes a surprising amount of its magic from things you did not plan to buy. A phone order is more list-driven. If delivery grows only the planned basket, the romance of the treasure hunt thins out.

In my experience covering retail hybrids, the winners treat delivery as a membership benefit and keep the wild margin items inside the four walls. The losers subsidize the last mile until the core store looks optional. Nothing in the current commentary suggests the second path. It is still early enough that “nationwide” is a footprint announcement, not a profit announcement.

A simple way to hold the delivery question:
  Warehouse visit = traffic + impulse + renewal reminder
  Doorstep order = convenience + list fidelity + fee support
  The model works if the second does not cannibalize the first.

The Calendar Footnote Nobody Should Skip

Labor Day weekend landed later on the 2026 calendar. That is a dull sentence with a real effect. A long weekend pulls forward party trays, coolers, and the kind of bulk meat purchase that flatters a September week. A cautious research shop estimated that, once you account for the shift, core U.S. comps would have been closer to 7.3% than to the reported 8% ex-gas figure. I do not treat 7.3% as a disappointment. I treat it as the grown-up number.

Retail calendars are full of these little traps. A holiday that moves, a storm that shuts a region, a fuel spike that flatters the headline for thirty days and then reverses. The investor habit worth copying is to write both numbers down. The reported one tells you what the tape will trade. The adjusted one tells you what the business did. Confusing them is how people buy the top of a noisy month.

There is one more monthly sales report before the fiscal first quarter of 2027. That release will not have the same Labor Day gift. If the core holds anywhere near the recent pace without the calendar assist, the resilience argument gets cleaner. If it slips toward the mid-single digits and membership commentary stays cautious, the multiple will feel heavy again. That is the actual fork, not a philosophical debate about whether warehouse retail is “defensive.”

How A Premium Multiple Survives A Picky Consumer

People ask, fairly, why anyone pays more than 40 times forward earnings for a retailer that sells olive oil by the liter and tires by the set. The answer is not glamour. It is the structure.

Membership fees are high-margin and recurring. Merchandise is priced to drive volume, not to maximize the gross margin percentage on a jar of pickles. Scale in purchasing lets the buyer push vendors harder than a regional grocer can. The building itself is a filter: you paid to enter, so you are not a pure browser. Add a fuel gap that manufactures trips, and you get a traffic engine that does not depend on a seasonal fashion bet. When households get more discerning, the filter helps. Non-members feel the inflation. Members feel a smaller version of it, and they can see the math on the unit price.

That is the bull case in plain clothes. The bear case is equally plain. Growth in the fee base slows. Renewal ticks down. International openings get harder. A delivery push costs more than it returns. The multiple compresses from the low 40s toward something that still looks expensive next to a normal retailer and suddenly looks reasonable only if comps stay elevated. Compression from 41 times does not require a crisis. It requires a few quarters where the extraordinary starts to look ordinary.

September did not settle that. It postponed it, which in this market is a kind of win. The commentator who has been uneasy about the valuation sounded a notch more comfortable, not converted. That is the right temperature. Comfort is not a price target.

What Shoppers Are Actually Doing In The Aisle

Macro charts are clean. Aisles are not. The pattern I keep hearing from members, and seeing in my own trips, is a split basket. Staples get the bulk treatment: detergent, rice, coffee, the boring calories. Discretionary gets a longer stare. The television might wait. The protein does not. A warehouse that leans into fresh food and private-label basics is built for a split basket. A mall retailer that needs the television is not.

Private label deserves a mention here because it is the quiet margin tool. When a shopper trades from a national brand to the house brand, the retailer often keeps more of the dollar even as the shelf price falls. Members experience that as savings. The company experiences it as a mix shift that can offset some of the headline price investment. It is not infinitely elastic. There is a floor under how far you can push a known brand before the member feels cheated. The operators who last treat that floor as sacred.

Fresh food is the other tell. A strong produce and protein run usually means the trip was a real household stock-up, not a fuel stop with a soda. If upcoming commentary keeps pointing to fresh as a driver, I would read that as quality of traffic, not just quantity. Quantity can be rented with a cheap gallon. Quality has to be earned with the rotisserie and the berries.

A Skeptic’s Checklist Before The Next Print

If you own the shares, or you are trying to decide whether the recent bounce is a gift or a trap, a short checklist beats a mood. I use something like this before a monthly sales date, and I throw out any item that cannot be answered from the release or the next call.

• Did the core comp, ex gas and currency, hold above the mid-single digits without a holiday shift?
• Did U.S. traffic stay positive, or did ticket do all the work?
• Did management talk about price investment as offense, funded by refunds, or as defense?
• Any fresh color on renewal, even a qualitative one?
• Did delivery get a number, or only another adjective?
• How did the international comp look once currency is removed?
• Did the stock’s reaction match the quality of the print, or did the tape do something unrelated?

That last one is easy to skip and expensive to skip. A good print on a bad macro day can look like indifference. A mediocre print on a squeeze day can look like endorsement. September’s modest gain on a tough session leaned toward genuine interest. It was not a stampede. Stampede would have worried me more.

Comparing The Two Research Moods

You can hold both notes in your head without forcing a winner. The constructive camp sees a company still selling value into a value-seeking consumer, with tariff refunds as extra ammunition and delivery as a slow build. The reserved camp sees a print that cleared the formal bar and missed the informal one, helped by a calendar, with membership still the swing factor. I have sat in both camps on this name in different years. Right now the constructive read fits the core number better, and the reserved read fits the multiple better. That tension is the position.

A useful mental model is to separate the business grade from the stock grade. The business grade from September is a solid B-plus, maybe an A-minus if you ignore the holiday shift and a B if you do not. The stock grade depends on what you paid. At a little over 41 times forward earnings, you need a string of B-pluses. One of them does not clear the bar by itself. Several in a row start to.

Rough frame, not a model: core comp durability x renewal stability x fee income quality = right to a premium multiple. Weaken any leg and the 41x starts to argue with you.

Notice what is missing from that frame. It does not include the fuel headline. Fuel is a traffic tool and a distortion. It is not the third leg. Investors who anchor on 11.4% are grading the canopy. Investors who anchor on 7.6% are grading the club. I know which building I would rather underwrite.

The Consumer Mood Under The Numbers

Gas has been a pain point. Groceries have been a pain point. Those two sentences explain a lot of retail commentary this year, and they explain why a warehouse with a cheap pump and a cheap case of eggs can look like a shelter. Shelter is not the same as growth. Shelter can flatter a comp for a season and then normalize when the pain eases. If oil retreats and food inflation cools, some of the “I have to go there” trips become “I could go there.” The membership has to be worth it on the second kind of trip too.

That is where the discerning shopper either sticks or drifts. A household that has done the unit-price math tends to stick, especially if the card is already paid. A household that joined in a panic about inflation may look at the renewal notice with colder eyes once the panic fades. The company has lived through that cycle before. The premium multiple assumes it lives through it again. History is a decent guide here and a bad promise.

I keep a small personal rule for consumer staples with a fee attached. If I hear friends joking about the renewal and still paying it, the franchise is fine. If I hear them calculating the renewal against three months of savings and sounding unsure, I want the next renewal statistic before I add. Anecdote is not data. It is a smoke alarm. September did not set the alarm off.

International, Currency, And The Part Easy To Ignore

The core figure excludes currency for a reason. A strong or weak dollar can make an overseas warehouse look brilliant or broken without a single extra pallet moving. September’s 7.6% core print already does that cleaning. What it cannot tell you is whether newer international buildings are ramping the way older ones did. Warehouse clubs travel, but they do not travel for free. Local sourcing, local membership habits, and local fuel rules all change the sketch.

For a holder focused on the U.S. engine, international is the option rather than the thesis. For a holder paying 41 times, international is part of how you grow into the multiple once domestic membership matures. Those are different time horizons. The monthly release is a poor tool for the second horizon and a decent tool for the first. Do not ask a September comp to answer a five-year country question.

Still, if currency-neutral international comps stay healthy while the U.S. core holds, the “this is only a fuel story” objection gets thinner. That objection was already thin after the 8% domestic ex-gas figure. It would be thinner still if the next print rhymes.

Positioning, Patience, And The Temptation To Trade The Print

Monthly sales dates invite a bad habit: trade the headline, invent a reason, and call it process. The share move on this one was small. Nearly 1% on a down day is a nod, not a regime change. The more meaningful move was the grind higher after the late-September earnings beat, more than 5% before the monthly even arrived. That sequence says positioning was cautious into the quarter and less cautious after it. September confirmed rather than created the mood.

If you are underweight and waiting for a multiple that looks like the rest of retail, you may wait a long time. This name rarely offers that. If you are overweight and need every month to accelerate, September’s calendar footnote is a warning to calm down. The middle path, which is the one I find least exciting and most repeatable, is to treat the core comp as a health check and the membership update as the real exam. Health check passed. Exam is still on the calendar.

A charitable portfolio that already holds the shares, the kind of disclosed long that commentators sometimes flag, has a different problem than a new buyer. The holder is managing a winner with a full multiple. The new buyer is deciding whether resilience is enough to pay up. Those are not the same decision, and articles that pretend they are tend to age badly. Know which chair you are in.

What Would Actually Change My Mind

I can be specific, because vague skepticism is just mood. A core comp that slips toward 4% for two monthly prints in a row, without a clean external excuse, would make the premium look complacent. A renewal rate that management stops defending would matter more. Evidence that price cuts are failing to hold traffic, meaning the value message is no longer landing, would matter too. On the other side, a re-acceleration in paid memberships, plus another refund-funded round of price investment that does not crack the margin story, would make 41 times feel less like a dare.

Delivery could be a swing item later, not now. If on-demand partnerships show up as incremental trips rather than shifted trips, that is a quiet positive. If they show up as a cost line with flat traffic, the romance ends. We do not have that split yet. Pretending we do is how commentary gets ahead of the footnotes.

Would I feel better about the stock after September than I did in August? Yes, a bit, which is roughly where that market voice landed. Feeling better is not the same as calling it a bargain. Anyone using the word bargain next to a low-40s forward multiple should have to buy the coffee. The resilience is real. The price of admission is also real. Both sentences belong in the same paragraph, or the write-up is advertising.

The Next Thirty Days, Without The Drama

Between now and the next monthly report, the macro can shove the stock around for reasons that have nothing to do with rotisserie chickens. Rates, oil, a messy tape. None of that cancels a 7.6% core comp, and none of it guarantees the following one. The practical posture is dull on purpose. Track fuel prices, because they will warp the headline again. Track any fresh comment on the remaining tariff refund, because that is dry powder for price. Ignore hot takes that treat a single weekend shift as a thesis.

Then read the next release the same way: headline, core, U.S. ex gas, and only then the adjective a commentator hangs on it. Adjectives are cheap. The stack of numbers is the article. September’s stack said the building is still busy after you subtract the canopy. That was the piece worth feeling better about, and it is the piece that has to show up again before the multiple debate can honestly move.

I keep picturing that parking lot. Pumps busy, carts oversized, nobody looking thrilled about the price of anything and plenty of people still walking in. Retail does not get a cleaner picture of resilience than that. The stock, priced as if the picture lasts, is the part you have to underwrite yourself. September helped the picture. It did not discount the frame.

A Longer Look At The Fee Versus The Basket

Pull the model apart and two engines sit side by side. The fee engine is small in revenue and large in profit. The basket engine is large in revenue and thin in margin. September speaks almost entirely to the basket. A strong basket with a tired fee engine can carry a year. It struggles to carry a decade at this multiple. That is why membership commentary has more weight than a single comp, even a good one.

Households do a rough version of the same math. The annual fee is a sunk cost until the renewal month, then it becomes a decision. If the basket savings clearly exceed the fee, the decision is easy and a little boring. If the savings are fuzzy, because the member did not shop enough, the decision gets noisy. High comps among existing members make the savings less fuzzy. They do not create new households. New households are a sales-floor and marketing job, not a September arithmetic job.

There is a regional texture too. In dense suburbs the card can feel mandatory, almost like a utility. In thinner markets the drive has to be worth it, and fuel helps the drive make sense. A record fuel year props up that second geography. When fuel normalizes, the thinner markets are where you would look first for softer traffic. Monthly national comps will blur that. Store-level color, when management offers it, is worth more than another decimal on the national figure.

Price Investment Without Turning It Into A Slogan

“Investing in price” can become a slogan that excuses any margin miss. It should not. The credible version has a source of funds and a place it shows up. Here the source is a tariff refund already received, about $184 million, plus a claim on a larger amount still outstanding. The place it shows up is everyday goods, the stuff a member can check against a regular grocer. If the next call cannot point to categories where the shelf moved, the slogan is ahead of the aisle.

I would rather see a smaller, visible cut on items people buy every trip than a broad story about value. Visible cuts are how a membership earns its anecdote. Anecdotes are how renewals survive a grumpy year. This is softer than a spreadsheet and more important than analysts like to admit. The member who tells a neighbor about the olive oil is doing unpaid marketing. The member who cannot remember the last time the price felt different is a renewal risk, even if the comp still prints fine.

Additional refunds, if they clear, give management a second swing at that anecdote. Banking them into earnings instead would please a different shareholder and disappoint the one who owns the stock for the moat. The recent choice, to push price lower, fits the moat. Sticking with that choice matters more than the exact dollar of the next refund.

Why The Broad Market Multiple Is A Flawed Yardstick

Comparing 41 times to the broad market’s forward multiple is a fair headline and a sloppy model. The broad market includes banks, energy producers, and slow industrial firms that do not have a prepaid membership base. It also includes faster software names with no inventory. A warehouse club sits in a strange middle: physical, low margin on goods, high quality on the fee. The right comparison is other compounders with recurring economics, not the average stock in an index.

Even on that kinder yardstick, low 40s is full. Full is allowed when the compounding is visible. September made the compounding a little more visible in the basket. It did not make it visible in the fee. Until both show, “cheaper than it feels” is a wish. “Expensive and still executing” is the accurate line. I prefer accurate lines. They age better than wishes.

One more yardstick that does not get enough airtime: free cash flow after growth capex. New buildings are expensive, and this model grows by pouring concrete as much as by raising fees. A premium multiple assumes the concrete earns its cost. Monthly comps cannot prove that. They can suggest the existing concrete is earning it. That suggestion, repeated often enough, is what keeps the build program from looking reckless. September was another repetition. Useful. Not conclusive.

Putting September Back In Its Box

So where does this leave a reader who just wanted to know if the monthly report was actually good? It was good. Not mythical. Overall comps up 11.4%, core comps up 7.6%, U.S. growth around 8% once gasoline is removed, a possible haircut toward 7.3% if you adjust for a later Labor Day. The pace improved from August. The stock noticed, modestly, on a day when noticing was not free. Research opinion split between “value is still landing” and “the whisper was already high.” Membership remains the open file. Refunds may fund more price cuts. Delivery is a complement that just went nationwide, not a new company.

Feel better if you were worried the consumer had walked away from the warehouse. Do not feel clever if you were hoping the multiple had come down to meet you. It has not. The next monthly report, the last one before the new fiscal first quarter, is the cleanest near-term test of whether September was a calendar gift or a run rate. I know which result I want. Wanting it is not analysis. Writing down both outcomes before the number hits is.

Until then, the parking lot remains the better metaphor than the multiple. Cars at the pump, carts at the door, a fee that has to feel worth it when the renewal email arrives. September said the carts are still full enough. The email is a separate scene, and it has not been filmed yet.