What Costco actually reported — and why it matters
On May 28, 2026, Costco reported third-quarter fiscal 2026 net sales of $69.15 billion, up 11.6% from the prior year, and net income of $2.19 billion, or $4.93 per share. Comparable sales rose 9.8% — 6.6% excluding gasoline price effects and foreign exchange — while digitally-enabled comparable sales jumped 21.5%. Costco’s worldwide membership renewal rate held at 89.7%. The strategic story buried in those numbers: Costco’s growth is not coming from new locations, deeper discounts, or a category breakthrough. It is coming from a paying customer base that voluntarily opts into a higher tier and renews above 89%.
For mid-market operators running a $5M–$100M business, that is the most important sentence in the earnings release. Costco grew double digits in a consumer environment where most retail peers are managing flat results or compressing margins. The company did it by building a customer relationship that is structurally different from a transaction. Every other line on the P&L — gross margin, store productivity, e-commerce growth — exists downstream of that one decision the customer makes once a year: renew or walk.
Mid-market operators have been told for two decades that “recurring revenue” is a software-company concept. Costco’s quarter is the clearest reminder that recurring revenue is a customer-relationship concept, and any business that meaningfully serves the same buyer more than twice a year can engineer it.
The executive membership is doing the work at Costco
The headline metric most analysts missed: paid Executive Memberships reached 41.2 million, up 9.6% year over year, while total paid members grew just 4.1% to 82.9 million. Executive memberships are now roughly half of Costco’s member base — and they generate the bulk of the comparable-sales lift, because executive members shop more often, spend more per trip, and renew at materially higher rates than gold-star members.
This is the part that translates directly into mid-market strategy. Costco is not running a single product tier and hoping for upgrades. It built a deliberate, two-step ladder where the upgrade itself is a profit center, not just a retention tool. The $130 executive tier pays for itself through a 2% reward on most purchases, which means the customer who upgrades is also the customer who has now psychologically committed to shopping enough to “earn back” the upgrade. Costco gets a paid commitment, more frequency, and a higher renewal probability — three returns from one design decision.
Mid-market operators across professional services, specialty retail, food service, and B2B distribution typically have a customer base that already contains a natural executive tier — the 15–20% of accounts that drive 60–70% of revenue. Most of these businesses serve that tier with the same pricing, packaging, and service intensity as everyone else. Costco’s quarter is empirical evidence that there is real money on the table in building a deliberate top tier with its own pricing, its own benefits, and its own renewal mechanic. If you have a “best customers” cohort you are not pricing differently, you are leaving the Costco premium on your table.
Why Costco’s renewal rate is the real moat
A 89.7% worldwide renewal rate — 92.2% across the U.S. and Canada — is, by any measure, an extraordinary number. SaaS companies with significantly stickier products and enterprise contracts usually run 85–90% gross retention. Costco hits this on a year-long commitment that the customer pays for in cash, not through procurement.
What makes the renewal rate hold up is the everyday economic case the customer keeps making for themselves. The customer does not renew because of a contract clause; they renew because the math worked over the previous twelve months. Costco’s job, week after week, is to keep that math working — by holding the gross-margin floor on commodity goods like rotisserie chicken and gasoline, keeping the warehouse experience consistent, and giving the executive tier a tangible payback they can see in their reward statement.
For a mid-market operator, the lesson is not “lock customers into longer contracts.” It is the reverse: build a renewal mechanic the customer wants to say yes to, and prove the value continuously in between. Many CEOs I work with through the fractional COO and business operations practice at Coleman Management Advisors discover that their renewal problem is not a sales problem — it is an operational one. The customer cannot tell whether the value showed up because the operating cadence does not surface it.
What mid-market operators should rebuild this quarter
Three concrete moves come out of the Costco quarter, and any operator can run them in the next ninety days without a major capital decision. The first is to segment your customer base by frequency and basket size, and identify the 15–20% of accounts that look like your “executive members.” Calculate gross-margin contribution by tier. In most mid-market P&Ls audited inside the practice, the top tier is generating three to five times the gross profit per account of the long tail. That number, once you see it, makes the case for differentiated pricing and packaging unmissable.
The second move is to design a paid upgrade. The upgrade must be priced high enough to feel like a commitment and pay back through a mechanism the customer experiences month after month — a rebate, a guaranteed response time, a quarterly business review, dedicated support, or a category-specific discount. The pricing principle Costco proves is that the customer prefers to pay for value than to negotiate for it. A pricing change that looks like a fee is a tax; a pricing change that looks like a club is a relationship.
The third move is to install a renewal mechanic. This sounds like a CRM project; it is actually an operating cadence. The customer needs to see, in a documented form, the value they captured in the previous twelve months. Quarterly check-ins, value statements, and usage reports are not marketing artifacts — they are the renewal mechanic. Costco’s reward statement is its renewal mechanic. Your equivalent is whatever document the customer holds in hand when they decide to keep buying.
The risk if you ignore this signal
The reason this quarter matters more than a typical earnings beat is the macro environment. Consumer balance sheets are stretched, fuel costs are climbing, and most retail peers are guiding cautiously into the back half of 2026. Costco grew 11.6% anyway because its growth engine is not consumer sentiment — it is membership renewal.
Mid-market operators who depend on transactional demand are exposed to exactly the cycle Costco just sidestepped. If 2026 turns into a tighter consumer year, the businesses that hold up will be the ones with a paying tier of customers who have already pre-committed to coming back. The businesses that do not have that structure will spend the rest of the year competing on price for shrinking discretionary spend. That is a worse fight to be in, and one your business can stop fighting if you start the membership-economics work now.
This is the quarter to study, model, and adapt. If you would like a working session on what an executive tier looks like in your specific business — pricing, benefits, renewal mechanic, and the operating cadence that makes it stick — that is the conversation we have every week at Coleman Management Advisors. The Costco lesson is not “be more like Costco.” It is “build a renewal relationship with the customers you already have,” and most mid-market operators have everything they need to start this quarter.