Lidl Surges to Top Spot in UK Grocery Loyalty Rankings

Lidl has dramatically improved its performance in bringing back recent grocery shoppers, jumping from ninth to first place in the UK grocery market. According to new transaction data from Beyond: Putting Data to Work, the discounter has not only seen a significant increase in customer comeback but also ranked first in overall growth momentum, second in competitive standing, and second in loyalty. This marks a significant shift in the UK grocery landscape, where traditional notions of supermarket loyalty are being rewritten.

The report, which is the second edition of Beyond Spend, reveals that even the most loyal shoppers, known as Weekly Loyal Buyers, use an average of three grocery retailers. Weekly Bargain Hunters, on the other hand, frequent six different supermarkets. This finding underscores the fragmented nature of the UK grocery market, where customers are increasingly using multiple retailers for various shopping needs.

Lidl's success can be attributed to its ability to regain customer loyalty and maintain a strong presence in the market. Co-op, another player, has seen the strongest growth in the number of shoppers it attracts, despite having the smallest average basket at around £12. This growth is driven by capturing more shoppers and more convenience and top-up occasions, rather than larger transactions. M&S, meanwhile, has moved from tenth to first in terms of spending shift, as customers allocate a greater proportion of their grocery spend to the retailer. This suggests that M&S is gaining a more prominent role within the family grocery shop.

Tesco remains the strongest established player, ranking first for overall customer reach, share of grocery spend, and returning customers. Aldi, known for its large average basket at £27.10, continues to be a formidable player, showcasing the scale of the grocery missions it undertakes. The report also highlights significant regional variations, noting that Aldi is particularly strong in the Midlands, Wales, and Yorkshire and the Humber, while Lidl excels in the South West and Northern Ireland.

Paul Alexander, CEO of Beyond: Putting Data to Work, commented, "The supermarket loyalty card isn't the same thing as supermarket loyalty. A shopper can return regularly to one retailer, spend the most with another, and use a third for a completely different job." He further elaborated, "What Q2 shows is that retailers are finding very different routes to growth. Lidl is getting recent customers back, Co-op is reaching more shoppers, and M&S is winning a greater share of existing grocery spend. The future of growth isn't necessarily about getting customers to spend more. It's about getting them to spend more of what they already spend with you."

The findings indicate that the grocery market is entering the second half of 2026 with overall demand remaining relatively resilient. Competition is intensifying for individual shopping missions, repeat visits, and a greater share of customers' existing grocery spend. The report, which provides insights into observed grocery spending behavior, customer reach, basket value, share of grocery spend, repeat behavior, shopper missions, and regional differences, underscores the evolving dynamics of the UK grocery landscape.