Walmart said its Leeds-based subsidiary Asda chalked up its fourth consecutive “step on” in sales, reporting like-for-like sales growth of 0.5% in the fourth quarter to December 31.

Walmart said the figures “give further evidence to Asda’s improving performance in the market, following reports in January that Asda was the only one of the ‘Big Four’ supermarkets to hold its market share in December.”

Walmart CEO Doug McMillon said: “In the UK, Asda delivered positive comp sales again this quarter with particular strength during the Christmas period.

“We’re pleased to see customers responding to our investments in the value proposition through improved in-store experience scores and the strengthening of our private brand and online grocery offerings.

“We know we have more work to do in the UK, however we are encouraged by recent results in key areas of our business.”

Walmart chief financial officer Brett Biggs said: “Turning to the UK … net sales increased 2.0 percent and comp sales grew 0.5 percent.

“We continue to make progress in this business, and we need to do even more to further enhance the value proposition.”

Roger Burnley, who became Asda CEO in January, said: “Last year, we really improved our offer for customers – combining great product innovation with a focus on value and an easy shopping experience.

“Products like our Asda mince pies really appealed to customers with their great taste, value and being suitable vegan friendly, helped attract over 348,000 new customers to our stores in December and meant we were the only one of the big four to retain our market position.”