Financial research concept

Warehouse Club Net Sales Growth

Warehouse club net sales growth combines comparable-sales growth with sales from newly opened warehouses and other mix effects.

By Lee BaileyPublished Sep 23, 2026
Research context

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Research date
Sep 23, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
15 connected conceptsPart of the reviewed Warehouse Club Economics; issuer definitions remain distinct where disclosed.
Company examples
1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. The growth bridge
  2. Investor caution
  3. Part of the Warehouse Club Economics
  4. See It in Company Research
  5. Continue Research

Warehouse Club Net Sales Growth measures the year-over-year change in merchandise and ancillary sales.

Costco's Q3 FY2026 net sales increased 12%, from $61.965 billion to $69.154 billion.

The growth bridge

Costco attributed most of the increase to comparable sales, with the balance coming from sales at 23 net new warehouses opened since the end of Q3 FY2025.

Gasoline prices and foreign exchange also affected reported growth.

Investor caution

Net sales growth is broader than comparable sales growth because it includes new-unit contribution. Use both measures together to separate existing-store momentum from footprint expansion.

Source:

Part of the Warehouse Club Economics

Connect membership monetization and retention, mature-base comparable sales, digital demand, and physical footprint expansion for warehouse-club retailers.

How the model fits together
  • Membership base, retention, and fee revenue: Paid members and cardholders describe different parts of the membership base, renewal rates measure retained eligible memberships under Costco's trailing methodology, and membership fee revenue grows through sign-ups, fee changes, and Executive upgrades rather than member count alone.
  • Comparable sales, traffic, ticket, and digital demand: Comparable sales cover mature warehouses and digitally enabled businesses, while shopping frequency and average ticket are the two core behavioral drivers. Adjusted comparable sales remove gasoline-price and foreign-exchange effects, and digitally enabled comparable sales use digital initiation rather than fulfillment channel.
  • Net sales and footprint expansion: Net sales combine the mature comparable base with sales from newer warehouses. Warehouse count and net-new warehouse contribution add physical-capacity context, while net sales growth can also be affected by gasoline prices, foreign exchange, and business mix.

See It in Company Research

These companies are examples of how the concept is reported or discussed in public filings. Definitions can differ by issuer; these links open company research rather than a normalized metric comparison.

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