Costco Wholesale stock stays near highs as growth meets rich valuation

Costco Wholesale continues to combine strong sales growth with an unusually demanding valuation. In an analysis updated November 1, Trefis said the retailer's trailing twelve-month revenue had reached USD 303.2 billion, while net income stood at USD 9.2 billion. The figures cover Costco Wholesale Corporation and are based on its fiscal 2026 reporting.

Trefis also highlighted the early momentum in fiscal 2027. September net sales rose 13.0 percent year over year to USD 30.02 billion for the five-week retail period ended October 4. Global comparable sales excluding gasoline-price and foreign-exchange effects accelerated to 7.6 percent from 5.4 percent in August. In the United States, the comparable-sales increase on the same basis reached 8.0 percent, compared with 5.6 percent in August.

Growth supports a premium multiple

Costco's fiscal fourth-quarter performance provided the foundation for the current valuation debate. Trefis reported diluted earnings per share of USD 6.75, above a USD 6.54 analyst consensus estimate, while quarterly revenue rose 11.1 percent to USD 95.72 billion. Net sales increased 11.2 percent to USD 93.9 billion, and comparable sales advanced 9.4 percent, or 6.7 percent after adjusting for gasoline and currency effects.

Digital activity remained another growth driver. Digitally enabled comparable sales increased 19.5 percent in the fiscal fourth quarter, according to the analysis. The combination of warehouse traffic, membership income and digital demand has kept revenue growth above the pace of many mature retailers.

The financial profile is supported by cash generation. Trefis lists USD 15.8 billion in trailing twelve-month operating cash flow and USD 9.4 billion in free cash flow. Costco held USD 21.3 billion in cash against USD 8.6 billion in debt, giving the company financial flexibility for warehouse expansion, technology investment and shareholder returns.

Investors face a demanding price

The same analysis puts Costco at 50.0 times trailing earnings and 49.2 times free cash flow. Trefis also places the shares 4.6 percent below their 52-week high. That combination leaves less room for an operational slowdown: sustained comparable-sales growth and membership resilience remain important to the investment case, while a moderation in demand could pressure the premium multiple.

Trefis identifies dependence on membership-fee income and possible supply-chain disruption as key risks. The membership model supports profitability, but any weakening in renewal rates or member growth would affect a particularly important earnings stream. The company also operates with thin merchandise margins, which can limit its ability to absorb higher costs.

Costco stock traded at 917.65 euros on Lang & Schwarz at 1:10 p.m. CET on Wednesday, November 4, 2026. The real-time quote of Costco Wholesale stock remains the relevant reference for the European trading session.

Costco Wholesale Corporation

• ISIN: US22160K1051
• Ticker: COST
• Lang & Schwarz quote: 917.65 euros at 1:10 p.m. CET on November 4, 2026
• Market capitalization: USD 460.4 billion as of November 3, 2026
• Sector: Consumer Staples
• Industry: Consumer Staples Merchandise Retail

In the broader market, investors are also weighing consumer-staples trends against the S&P 500.

Costco's next scheduled earnings release is December 10, 2026, when investors will receive a fuller update on the first fiscal quarter. Until then, monthly sales, comparable-store trends and membership indicators are likely to shape expectations for a stock whose operating growth is strong but whose valuation leaves limited tolerance for disappointment.

Current market reports provide the broader trading context.

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