Costco’s 13.6% E-Commerce Surge and $84.4B Sales Drive 0.87% Share Gains Ranking 42nd in $1.68B Volume

On September 8, 2025, , ranking 42nd in market activity. , , . International markets, particularly Canada and Japan, outperformed domestic segments, .

Costco’s performance underscores its resilience amid macroeconomic challenges, . , reflecting a strategic focus on expanding physical and digital footprints. Strong membership demand and pricing discipline, highlighted by , further reinforce investor confidence. , though robust sales and earnings growth projections justify this premium.

I can certainly help design and back-test a “top-500-by-volume” rotation strategy, but we need to settle a couple of practical details before running it: 1. Universe scope—e.g., markets to scan, inclusion of ETFs/ADRs; 2. Position-sizing rules—equal-weight, value-weighted, or alternatives; 3. Benchmark for comparison; and 4. Data availability constraints. Once these parameters are confirmed, I can generate the required return series for analysis.