The Bentonville, Ark.-based retailer currently holds a 19.9% share, down from 20% in 2025 and 20.4% in 2024.
Meanwhile, Costco is gaining ground. The Issaquah, Wash.-based warehouse retailer now claims an 8.2% share, ranking third. This marks an increase from 7.9% in 2025 and 7.6% in 2024.
Kroger remains No. 2 behind Walmart, but its share is also shrinking. The Cincinnati-based grocer’s market share has dropped from 8.8% in 2024 to 8.6% in 2025 and 8.3% in 2026.
Albertsons ranks fourth despite losing ground over the three-year span. The Boise, Idaho-based grocer held a 4.8% share in 2024, which has since declined to 4.5%.
Publix, based in Lakeland, Fla., ranks fifth and has maintained a 4.1% share since 2024.
Walmart also leads Numerator’s consumer packaged goods (CPG) market share, but its dominance is waning. The retailer’s share has dropped from 21.1% in 2024 to 20.6% in 2025 and 20.4% in 2026
Consumer packaged goods (CPG) are everyday items that consumers use regularly and often replenish. Products like food and beverages, cosmetics, and cleaning products are consumer packaged goods.
Demand for consumer packaged goods is relatively steady in good and bad economic times, but this is still a highly competitive sector of the U.S. economy.
Costco ranks No. 2 in the CPG market, with its share rising from 7.4% in 2024 to 8.1% in 2026.
Amazon and Whole Foods, which are grouped together, rank third and have seen the largest year-over-year increases. Their combined share rose from 6.4% in 2024 to 7% in 2025 and now stands at 8% in 2026.
Kroger, which ranks fourth, has experienced the steepest decline in the CPG market. Its share fell from 7.2% in 2024 to 6.7% in 2026.
Albertsons rounds out the top five in the CPG market, holding a 3.6% share in 2026, down from 3.9% in 2024 and 3.8% in 2025.