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Costco Is Up 11% in 2026. Here’s Where the Stock Could Go

Wiltone Asuncion7 minute read
Reviewed by: David Hanson
Last updated Aug 17, 2026

@Leung Cho Pan via Canva, @Leung Cho Pan via Canva

Key Stats for Costco Stock

  • Current Price: $961.10
  • Target Price (Mid): ~$1,415
  • Street Target: ~$1,077
  • Potential Total Return: ~47%
  • Annualized IRR: ~10% / year

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What Happened?

Costco Wholesale Corporation (COST) just buried a subtle warning inside a strong number. July net sales came in at $23.12 billion, up 10.7% from a year earlier, the kind of double-digit print that has defined the stock’s 2026. Yet that growth rate barely moved from June’s 10.6%, and the spring’s hotter prints were flattered by calendar and gas effects. The business is still expanding at a steady low-double-digit clip, but the acceleration is gone, and the stock sits about 12% below its 52-week high while trading near 48 times earnings.

Shares are up roughly 11% year to date and have compounded for a decade, so the fear is no longer a broken company. It is paying a premium price for a business whose reported growth is starting to lap its own tough comparisons.

The July Print Was Strong, but Gas Did Some of the Work

Total comparable sales rose 8.9%, or 6.6% after removing gasoline prices and foreign exchange, and worldwide traffic climbed 3.6%. That traffic number matters most: members are visiting more often, which is the hardest signal to fake in a membership model. But gas did real optical work, too. The average selling price per gallon jumped 25.2% year over year, lifting reported comps by roughly 2.9%. A reader looking only at the 10.7% headline would overstate how much of the month was organic demand.

Net sales growth of 10.7% in July was essentially flat against June’s 10.6%. The spring months ran hotter, with May up 14.5% and April up 13.0%, though April carried an extra shopping day from the Easter calendar shift that added roughly two points. Adjust for that and the real story is a business settling into a steady low-double-digit pace as it laps its strong 2025 stretch, not a sudden stall. Management has flagged the same dynamic on margins: on the fiscal Q3 call, CFO Gary Millerchip said the company was “cycling two years’ worth of, I think, the highest growth we’d seen in gross margin rate in fiscal year 2025 and 2024 in Q3 in particular.” The comparisons are tough across the P&L, which is why a good month can land with a shrug.

Costco Revenues (TIKR)

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Why the Multiple Is the Hard Part

At $961.10, Costco trades at about 48 times trailing earnings, a P/E ratio of 48.3x on the last twelve months and 43.9x on the next twelve, both rich against most of the retail tape. The underlying quality is intact: in fiscal Q3 2026, the 12 weeks ended May 10, net sales reached $69.15 billion, up 11.6% (total revenue, including membership fees, was $70.5 billion), with adjusted earnings per share of $4.93, up 15%. Membership fee income, which flows almost entirely to profit, grew 10.7% to $1.37 billion across 82.9 million paid members, and the U.S. and Canada renewal rate held at 92.2%.

The catch is that consistency is exactly what makes clean beats unremarkable, which is why the stock can post a strong month and go nowhere. There is also a near-term cash wrinkle: fiscal Q3 free cash flow fell 13% to $2.04 billion as roughly $6.5 billion in fiscal 2026 capital spending funds an accelerating warehouse pipeline. That is timing, not deterioration, but it means a buyer today pays a full multiple during a stretch when the cash optics look their worst. And because management keeps margins deliberately thin to protect member pricing, the upside has to come from volume and store count, not from fatter margins.

Costco NTM Price / Normalized Earnings (P/E) (TIKR)

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TIKR Advanced Model Analysis

  • Current Price: $961.10
  • Target Price (Mid): ~$1,415
  • Potential Total Return: ~47%
  • Annualized IRR: ~10% / year
Costco Advanced Valuation Model (TIKR)

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TIKR’s mid-case model targets around $1,415 for COST on a four-year horizon, an implied total return of about 47%, or roughly 10% annualized. The mid case fits here because it reflects the base path most consistent with Costco’s actual track record, not a bull or bear extreme.

The target rests on two revenue drivers: warehouse unit growth toward a long-term pace of 30-plus net new openings per year, and steady membership fee income compounding on low-90s U.S. renewal economics. The margin driver is mix, as high-margin fee income grows faster than the thin-margin merchandise base, nudging net margin toward around 3%. The primary risk is the multiple itself. The model assumes the P/E actually contracts slightly over the period, so nearly all of the return comes from earnings growth rather than investors paying an even higher premium.

The upside comes if warehouse openings and executive-member mix push revenue growth toward the high end of the model’s 6-to-8% range, while the multiple holds, pulling the four-year return above 10% a year. The downside is simpler: if reported growth keeps cooling as comparisons tighten and the premium compresses faster than the model’s roughly one-point-a-year assumption, the return erodes toward the low single digits, leaving a buyer at 48x paying full price for a stock that treads water.

Conclusion

The number that settles this is September 24, when Costco reports fiscal Q4 after the close. Analysts expect about $6.51 in adjusted earnings, up roughly 11% year over year. A print at or above that, paired with a renewal rate holding near 92%, would confirm the compounding story is intact and make the flattening monthly comps look like a comparison artifact rather than a demand problem. A miss, or renewal slippage below the low-90s, would hand the bears their entry: proof that a 48x multiple has finally outrun a business growing earnings in the low teens. Mark the date, and watch renewals first, earnings second.

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Should You Invest in Costco?

The only way to really know is to look at the numbers yourself. TIKR gives you free access to the same institutional-quality financial data that professional analysts use to answer exactly that question.

Pull up Costco, and you’ll see years of historical financials, what Wall Street analysts expect for revenue and earnings in the quarters ahead, how valuation multiples have moved over time, and whether price targets are trending up or down.

You can build a free watchlist to track Costco alongside every other stock on your radar. No credit card required. Just the data you need to decide for yourself.

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Disclaimer:

Please note that the articles on TIKR are not intended to serve as investment or financial advice from TIKR or our content team, nor are they recommendations to buy or sell any stocks. We create our content based on TIKR Terminal’s investment data and analysts’ estimates. Our analysis might not include recent company news or important updates. TIKR has no position in any stocks mentioned. Thank you for reading, and happy investing!

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