Key Stats for Costco Stock
- Current Price: $915.74
- Target Price (Mid): ~$1,350
- Street Target: ~$1,072
- Potential Total Return: ~47%
- Annualized IRR: ~10% / year
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What Happened?
Costco Wholesale Corporation (COST) told investors on September 2 that August net sales rose 9.9% to $23.70 billion, capping a fiscal year in which sales crossed $297 billion. On paper, that is the kind of double-digit print that carried the stock for most of the decade. Instead, shares slipped in the sessions that followed, closing the week at $915.74, about 16% below their May closing high. The gap between a strong headline and a falling stock is the story worth understanding here.
Gasoline price inflation added about 2.9 percentage points to reported comparable sales, and the average price per gallon jumped 25.8% year over year. Strip out gas and foreign exchange, and total company comparable sales grew 5.4%. A later Labor Day this year worked against that figure, trimming reported sales by just under 75 basis points, so the clean underlying pace was closer to 6%. Either way, the real demand signal runs at mid-single digits, not the double-digit rate the headline advertises. Traffic still rose 2.5% worldwide, so the business is healthy, just not growing as fast as the top line suggests.
The Engine Investors Pay For Held Up
The part of Costco that justifies its premium is membership and traffic, and both were held in August. Comparable traffic, how often members shop, climbed 2.5% worldwide and 2.3% in the U.S. Digitally-enabled comparable sales rose 17.9%, near or above 18% every month this year. Members are visiting more often and buying more online, the hardest signal for a retailer to fake.
Andrew Yoon, Director of Finance and Investor Relations, put the month plainly on the pre-recorded call: “net sales for the month came in at $23.70 billion, an increase of 9.9% from $21.56 billion last year.” The figure is accurate, but it bundles three forces: real demand, gas inflation, and currency. Separating them tells you whether the business is accelerating or lapping an easier comparison. In August, it was mostly the latter, with foods, fresh foods, and non-foods all in low-to-mid single digits before gas and ancillary categories lifted the total.
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A Beef Probe and Target Cuts at an Awkward Moment
As the sales release landed, the Department of Justice expanded an antitrust inquiry into beef prices, one that began with the “Big Four” meatpackers, to eight large grocers, Costco among them. The DOJ has asked the retailers to brief investigators on beef pricing, margins, and wholesale arrangements dating back to 2020. This is an information request, not a charge or a finding, and it names Walmart, Kroger, Amazon, and five others alongside Costco. The near-term financial impact is likely minimal, but it stacks headline risk onto a stock already under valuation scrutiny.
COST closed lower in the sessions after the print, and analysts moved with it: Bernstein cut its target to $1,144 from $1,194, and Deutsche Bank trimmed to $1,091 from $1,120, both still above the current price but heading the wrong way. The stock trades at about 46 times trailing earnings and 42 times forward, a P/E ratio that prices in far more than steady mid-single-digit comps. At that level, the market stops rewarding in-line results and demands proof, and a gas-flattered sales month does not supply it.
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TIKR Advanced Model Analysis
- Current Price: $915.74
- Target Price (Mid): ~$1,350
- Potential Total Return: ~47%
- Annualized IRR: ~10% / year
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Using the TIKR mid-case, Costco models to a target near $1,350 over the next four years, a total return of about 47%, and roughly 10% per year. The revenue side leans on two drivers: new warehouse expansion, which adds selling square footage and fresh member pools, and the digital and membership flywheel, where digitally-enabled comps near 18% pull higher-frequency members deeper into the ecosystem. The margin driver is membership fee income, which flows almost entirely to profit and lets the model lift net margin from about 2.8% toward the low-3% range even as merchandise stays thin.
The primary risk is the multiple. This month made the point directly: a headline that looked double-digit was really mid-single-digit once gas came out, and the stock still trades near 46 times earnings. The mid-case assumes only slight P/E compression of about 1.6% a year, so a faster de-rating would erase much of the upside even if earnings compound on plan. The upside case builds toward roughly $2,257 if growth and margins run high. The downside is a business that keeps compounding earnings while its multiple slowly leaks, leaving returns well short of the mid-case.
Conclusion
The number that matters lands September 24, when Costco reports full Q4 and fiscal 2026 results after the close. The sales figures are already known, so the report turns on what the monthly release cannot show: the U.S. and Canada membership renewal rate, the clearest read on whether members keep paying, and whether operating margin is still climbing. Renewals holding near recent highs with margin progress would confirm the premium is earned. Renewals slipping, or margin stalling while the multiple sits at 46 times, would hand the skeptics their case.
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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.
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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!
