Market share data from May 28, 2026, shows Tesco leading the UK grocery market at 28.2%, with Aldi ranking fourth at 10.8%.

The entities involved

• Aldi →

  brand name of two global discount supermarket chains

  • Poundland filed notice of intention to appoint administrators amid intense competition from rivals like Lidl and Aldi.Tue 21:46
  • Magnum, a brand of Unilever, is involved in court proceedings against Aldi for trademark infringement in Ireland.Mon 19:54
• Tesco →

  British multinational retailer

  • Supermarkets are competing for customer custom during the golden quarter, while the Food and Drink Federation is consulted on price hikes.Wed 14:52
  • Tesco, Sainsbury’s, and Morrisons are comparing prices for whole leg lamb.Wed 14:52
• Lidl →

  German global discount supermarket chain

  • Lidl plans to open a new store in Linwood, Paisley, and is seeking planning permission from Renfrewshire Council.Tue 16:35
  • Lidl is involved as funding signals priority areas for intervention by the government.Sat 19:37
• Asda →

  British supermarket chain

  • Subway restaurants are now opening inside Asda supermarkets.Wed 14:54
  • David Potts has been appointed CEO of Asda, having previously held roles at Tesco and Morrisons, as the supermarket faces heavy competition.Tue 12:31

Related events

• Price comparisons show Aldi offering lower prices than Tesco and ranking above Asda, while Lidl is its nearest competitor.Aug 5
• Lidl, Tesco, and Asda hold market shares in Northern Ireland, with Tesco currently holding the number one position.Oct 19
• Aldi, Walmart, and Costco are competing in the discount retail and grocery markets.Sep 21
• Morrisons is acquired by private equity firm Clayton, Dubilier & Rice, amid market share shifts involving Aldi and Lidl.Aug 17