Walmart is once again America's grocery king, but rival Costco is rapidly gaining ground
1. Costco has increased its grocery market share to 8.5%. 2. Walmart continues to dominate with 25% of grocery sales. 3. Shoppers are prioritizing value during economic uncertainty. 4. Collectively, Walmart and Costco account for 33.7% of US grocery spending. 5. Competitors are struggling to meet sales targets amidst this shift.