Tesco’s market share has broken another record, rising to 31.1 per cent, according to the latest TNS Worldpanel grocery market share figures.

The results cover the 12 weeks ending on May 21.

Asda is still holding onto the number two spot, with a 16.4 per cent share.

The supermarket’s recent aggressive price cuts have helped lift the year-on-year growth rate to 4 per cent, the highest level for the last 16 periods, and, as a result, the share decline has halted for this period.

The Sainsbury recovery continues with the year-on-year growth rate remaining at a healthy 5 per cent, lifting the share from 15.8 per cent last year to 16.0 per cent.

A comparison of the Asda and Sainsbury’s year-on-year trends shows that the contest for the number two grocery retailer is hotly fought.

The Morrisons share has now been stable for the last 12 periods, with the negative impact of the store sell-offs passing so that the true retailing performance can be assessed from now on.

The Kwik Save decline from 1.8 per cent to 0.8 per cent is a result of the Tchenguiz consortium selling off most of the outlets, while the growth posted by Lidl and Aldi comes as they acquired some of the Kwik Save outlets.