Costco Wholesale Corp. (COST) long reigned as the undisputed king of retail returns, turning a $10,000 investment into nearly six times that over the past decade. But the stock’s recent stumble — a 9.3% decline over the past six months against a 17.3% rally in the S&P 500 — has investors wondering whether the wholesale club’s valuation has finally come back down to earth.
The short answer: not quite.
By headline numbers, Costco appears to be on sale. Revenue, net income and free cash flow have all expanded over the past six months, even as the share price has slipped from its March peak. On a trailing-twelve-month (TTM) basis, that combination has pushed Costco’s valuation multiples lower than they were earlier this year.
But “less expensive” is not the same as “cheap.”
Against its retail peers, Costco still commands a premium across nearly every core metric, according to YCharts data:
表格
| Retailer | P/S (TTM) | P/E (TTM) | P/FCF (TTM) |
| Costco | 1.35x | 44.3x | 43.6x |
| Walmart (WMT) | 1.13x | 37.8x | 61.7x |
| Target (TGT) | 0.66x | 16.2x | 16.0x |
| Best Buy | 0.44x | 14.6x | 10.5x |
| Kroger | 0.25x | 32.0x | 16.0x |
Only Walmart trades more richly than Costco on a single measure — price-to-free-cash-flow. On sales, earnings and every other comparable gauge, Costco is the most expensive name in the group. Target, by contrast, trades at roughly half of Costco’s multiple on every line. Even after a near-10% drawdown, growth expectations are still baked into the stock.
The retail backdrop is far from forgiving. Tariffs on goods from China, Mexico and Canada have forced retailers to choose between absorbing costs or passing them to shoppers — and some price increases have already cost them sales. Record gasoline prices have added further pressure to both imported and domestic shipping costs.
Yet Costco’s membership model has held up remarkably well. The U.S. and Canada membership renewal rate reached 92.3% in the most recent quarter, and global paid memberships grew 3.8% year over year. The company notched net sales of $297 billion in fiscal 2026, ended August 30, and has grown net income at a 14.7% compound annual rate over the past decade. New warehouse openings around the world continue to lay the groundwork for future growth.
The long-term case remains intact: durable same-store demand, scale economics that keep prices low, and a steady slate of new locations. But at its current size, a normalization of growth is a reasonable assumption, and the retail competitive landscape remains fiercely contested.
For buy-and-hold investors willing to pay up for quality, Costco still earns a place in a portfolio. But for those hunting for growth at a reasonable price, the stock’s steep premium over Walmart, Target and the rest of the sector means the most prudent move right now may be to watch from the sidelines — and wait for the valuation to catch up with the business.
