SAINSBURY’S received a pre-Christmas boost as new figures strengthened its position as the top performer among the UK’s “big four” supermarkets.

The group increased its share of the market from 16.7% to 16.9% in the 12 weeks to November 25 after notching up the highest sales growth of the UK’s four biggest chains, according to Kantar Worldpanel. Sainsbury’s rang up sales growth of 4.7% year-on-year.

Asda’s market share edged down from 17.5% to 17.3%, while Tesco saw its market share slip from 31% to 30.7%. Morrisons was left trailing at 11.7%, down from 12.3% a year earlier.