Retail & CommerceWalmartCostco
Retail & CommerceWalmartCostco

Big Box, Bigger Carts

Will Costco or Walmart grow customers faster this week?

Costco keeps posting traffic gains on membership renewals while Walmart pulls higher income shoppers into groceries. Two very different models chasing the same weekly household run.

Resolved
MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      

Final Result

W
Walmart0%
C
Costco100%
Market Resolved

Activity

Resolved
MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      MARKET CLOSED      

Final Result

W
Walmart0%
C
Costco100%
Market Resolved

Activity

MARKET WINDOW

July 27 to August 2, versus the July 20 to 26 prior week.

DEFINITIONS & SCOPE

Unique purchasers are distinct cardholders with a verified transaction under each retailer's billing descriptor, U.S. locations and e-commerce, consumer rails. Membership fees, fuel stations, and Sam's Club are out of scope. Growth rate normalizes the customer base gap between the two.

RESOLUTION METHOD

Higher week-over-week unique purchaser growth rate wins. Tie refunds all positions in full.

DATA SOURCE

Powered by verified transaction data from American Spend's oracle. Anonymized, aggregated, and secured. Real, objective, verified proof of spend sourced from a representative sample of consumer spending.

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