UK supermarket market share in the 12 weeks to 4 October 2026 was led by Tesco at 27.8%, Sainsbury’s at 15.2% and Asda at 11.5%. The official UK food and non-alcoholic beverages CPI annual rate was 1.3% in September 2026.
UK supermarket market share
The figures cover the 12 weeks to 4 October 2026. The data provider is Worldpanel by Numerator, and the figures were reported by Retail Times. The table shows ten retailers. Lidl’s share a year ago was 8.2% and Ocado’s was 2.0%.
| Retailer | Share (%) | A year ago (%) |
|---|---|---|
| Tesco | 27.8 | |
| Sainsbury’s | 15.2 | |
| Asda | 11.5 | |
| Aldi | 10.5 | |
| Lidl | 8.6 | 8.2 |
| Morrisons | 8.3 | |
| Co-op | 5.4 | |
| Waitrose | 4.4 | |
| Ocado | 2.2 | 2.0 |
| Iceland | 2.2 |
Food inflation
The ONS reported a food and non-alcoholic beverages CPI annual rate of 1.3% for September 2026 (series D7G8). Worldpanel by Numerator reported grocery inflation of 2.5% for the 12 weeks to 4 October 2026.
Sources
- Retail Times: Shoppers seek autumn staples, while grocery inflation edges up to 2.5%, Worldpanel by Numerator reports
- ONS: Food and non-alcoholic beverages, CPI annual rate (D7G8, MM23)
All monthly notes are on the Market Watch page.