Financial research concept

Retail Executive Member Mix: Premium-Tier Membership Penetration

Retail Executive member mix measures the share of paid memberships in a premium tier. Learn the calculation, why tier mix can matter economically, and what it does not prove.

By Lee BaileyPublished Sep 21, 2026
Research context

See what supports this page, how current it is, and where comparable or historical context is available.

Research date
Sep 21, 2026Use the dated article and cited sources for the definition, examples, and stated limitations.
Operating-model context
12 connected conceptsPart of the reviewed Retail Operating Model; issuer definitions remain distinct where disclosed.
Company examples
1 reviewed companyRelationships reflect supported examples, not a normalized cross-company KPI ranking.
  1. Why premium-tier mix matters
  2. Keep member mix separate from sales penetration
  3. Costco example
  4. Part of the Retail Operating Model
  5. See It in Company Research
  6. Continue Research

Retail Executive member mix measures the share of paid memberships represented by a retailer's premium membership tier.

For Costco, an analytical calculation is:

text
1Executive Member Mix = Executive Members ÷ Total Paid Members

Why premium-tier mix matters

A larger premium-tier mix can indicate that more members see enough value in higher-tier benefits to pay a higher annual fee.

It can also affect:

  • membership fee economics;
  • loyalty;
  • shopping behavior; and
  • reward expense.

However, premium-tier mix is not automatically a margin measure.

Keep member mix separate from sales penetration

The share of paid members in a premium tier and the share of company sales generated by those members are different metrics.

A smaller premium membership group can account for a disproportionately large share of sales if those members shop more frequently or spend more per visit.

Costco example

Costco reports Executive-member counts within its total paid membership base. This allows investors to calculate a premium-tier membership mix while preserving the company's own reported counts.

Source:

Executive member mix is a membership-tier composition measure. Pair it with renewal rates, paid-member growth, membership fee revenue, shopping frequency, and average ticket.

Part of the Retail Operating Model

Connect comparable sales, customer transactions, ticket, shopping frequency, digital contribution, membership economics, and physical footprint to understand retail demand and growth.

How the model fits together
  • Existing-base demand: Comparable sales describe growth from the established retail base. Customer transactions and average ticket separate purchase activity from spend per transaction, while shopping frequency adds repeat-purchase cadence when an issuer reports it.
  • Digital and membership economics: Digital sales mix measures how much sales activity originates digitally, while ecommerce contribution to comparable sales measures how much digital growth adds to the comparable-sales result. Paid members, renewal rate, and Executive member mix describe membership scale, retention, and premium-tier composition rather than a standardized revenue formula.
  • Physical footprint: Store count measures location scale, sales floor square feet measure aggregate selling-space capacity, and average store size relates selling area to locations. Read the three together before inferring capacity growth or productivity.

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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