Between them, they take £53.60 of every £100 spent on groceries in Great Britain. Two of them run loyalty schemes and match Aldi’s prices on chosen products. Aldi runs no scheme at all.
0.0%
Tesco
0.0%
Sainsbury’s
0.0%
Aldi UK
0.0%
Every other grocer
Asda 11.5%
Lidl 8.7%
Morrisons 8.4%
Co-op 5.5%
Waitrose 4.5%
Iceland 2.3%
Ocado 2.2%
Others 3.3%
£53.60 of every £100, together
27.8%
Tesco
15.2%
Sainsbury’s
10.6%
Aldi UK
46.4%
Every other grocer
Share of grocery spending in Great Britain, 12 weeks to 6 September 2026.
“Our goal is to create long-term sustainable value for all our stakeholders, by consistently delivering for customers”
Set out on 16 April 2026. Its latest full year ended on 28 February 2026.
“We make good food joyful, accessible and affordable for everyone, every day”
Set out in February 2024. Its latest full year ended on 28 February 2026.
“Nobody else is making the same commitment to everyday low prices – no clubs, no gimmicks, no tricks – just prices our customers can trust”
Set out on 15 September 2025. Its latest full year ended on 31 December 2025.
Tesco. Clubcard Prices on over 10,000 products.
Sainsbury’s. More than 10,000 Nectar Price offers every week.
Tesco. Your Clubcard Prices, launched to 1.5 million customers in March 2026, has made nearly 100 million tailored offers.,
Sainsbury’s. Your Nectar Prices, now at every supermarket checkout, where before it was only online and on SmartShop.
Tesco. Aldi’s prices matched on more than 600 products.
Sainsbury’s. 17% more centre-of-the-plate products on Aldi Price Match than a year before.
Tesco. Over 800 brands use Tesco Media, and over 100 supplier partners took part in Clubcard Challenges.
Sainsbury’s. Nectar360 is ahead of plan for at least £100 million of extra profit over three years, with more than 900 clients and media agencies.
Tesco. Save to Invest saved about £535 million in 2025/26, and has a target of £500 million for 2026/27.
Sainsbury’s. £1 billion of cost savings in the three years to March 2027, with around £680 million so far.,
Tesco. Pharmacy, Insurance & Money Services, Tesco Mobile, F&F clothing, and Tesco Marketplace, under its goal of meeting more everyday needs.
Sainsbury’s. Argos, with a pillar of its own: More Argos, More Often.
Tesco
Everyday Low Prices
3,000 products, up from 1,000 in January 2026
Clubcard Prices
Over 10,000 products
Your Clubcard Prices
Personal prices, from March 2026
Aldi Price Match
Matches AldiMore than 600 products
Over 10,000 products were cheaper at the end of the year than at the start, by 9.5% on average.
Sainsbury’s
Nectar Prices
More than 10,000 offers every week
Your Nectar Prices
At every supermarket checkout
Aldi Price Match
Matches Aldi17% more centre-of-the-plate products than a year before
Nectar Prices has saved customers more than £5.5 billion since it began in April 2023.
Aldi UK
Everyday low prices
No clubs, no gimmicks, no tricks
Price cuts
£340 million on more than 1,000 products so far in 2026
Cheapest supermarket
Named by Which? for the fifth year running
It pays store assistants £13.50 an hour nationally and £14.88 inside the M25, after two rises in 2026.
Cost savings
Tesco: Save to Invest
£2.2bn saved over four years, and a target of £500m for 2026/27. About £535m of it came in 2025/26.
Sainsbury’s: Save and Invest to Win
About £680m saved since February 2024, and a target of £1bn by March 2027. The target is for the three years of Next Level Sainsbury’s.,
Tesco. UK & ROI adjusted operating profit of £2,745 million, up 0.7%, a margin of 4.7%.
Sainsbury’s. Retail underlying operating profit of £1,025 million, down 1.1%.
Aldi UK: operating margin
2.4%
£2.30 of every £100 of sales in 2025, from £2.40 in 2024, as sales rose to £19.0 billion.,
Tesco
UK stores at the end of February 2026
0
77 new stores in the UK in 2025/26, 65 of them Express convenience stores.
Sainsbury’s
Supermarkets and convenience stores
More than0
Ten new supermarkets and 33 new convenience stores in 2025/26, and at least 20 more convenience stores planned for 2026/27.,
Aldi UK
Stores on 28 September 2026
0
Thirty more due to open within ten weeks of 28 September 2026, toward a long-term target of 1,500.,
Each square is ten stores.
Tesco pays for lower prices and higher pay with Save to Invest, which has its own yearly target, and Sainsbury’s has a target of £1 billion of savings over three years. Aldi UK pays with its margin, which thinned from 2.4% to 2.3% as its sales rose. We recommend naming in the plan where the money for a promise to customers comes from, whether that is a cost target or a margin you accept.
Aldi UK’s commitment is described by what it leaves out: no clubs, no gimmicks, and no tricks, in a market where both of the larger rivals run loyalty schemes with member prices. We recommend putting a refusal in the plan when rivals all do the same thing, so that nobody in the company copies them by default.
Tesco and Sainsbury’s both match Aldi’s prices on chosen products rather than on the whole range: more than 600 at Tesco, and more centre-of-the-plate products each year at Sainsbury’s. We recommend deciding where to meet a rival’s strength and saying which part of the offer it covers, rather than changing the whole plan to match.
Headwater is not connected with Tesco PLC, J Sainsbury plc, Aldi Stores Limited, the other grocers named here, or Worldpanel by Numerator. Tesco, Clubcard, Sainsbury’s, Nectar, Argos, ALDI, and the other names here are trade marks of their owners. Updated 30 September 2026.