Discount supermarkets Aldi and Lidl have seen their joint share of the groceries market double to 10% in just three years, industry figures show.
Analysts Kantar Worldpanel said German retailer Aldi, which has eight stores on Teesside, enjoyed a 5.6% market share in the 12 weeks to November 8 this year.
Lidl, which has six Tees stores including one in Guisborough (above), has seen its national market share climb to 4.4%.
Sainsbury’s was the only one of the “big four” supermarket chains to increase sales and market share.
As a result, Kantar said Sainsbury’s had overtaken Asda to become the second-largest UK supermarket chain, after Asda saw like-for-like sales fall 4.5% in the three months to the end of September, its fifth quarter of falling revenue.
In the previous quarter, Asda’s sales slumped 4.7%, marking its worst performance in its 50-year history.
It said sales volumes remained under pressure from discount supermarkets.
Meanwhile its US parent Walmart said net profit had fallen to $3.3bn for the three months to the end of October from $3.7bn a year earlier.
Its total revenues fell 1.3% in its third quarter to $117bn compared with $119bn a year earlier.
Asda, which has 10 stores across Teesside, is now the worst performing of the four main supermarkets.
Tesco, which has 12 Teesside stores, remains the UK’s largest supermarket with a 27.9% market share, while Sainsbury’s has 16.6%, with Asda on 16.4%.
UK supermarkets’ share of grocery market
The Co-operative 6.3%
Source: Kantar Worldpanel (12 weeks to November 8, 2015)