In the 12 weeks to September 11, Tesco amassed a 10 per cent increase in share of consumer spend, hitting£5.61 billion or 31.4 per cent of the total market. Customers spent£2.99 billion in Asda, a 5 per cent increase over the period year on year and Sainsbury shoppers parted with£2.84 billion, up by 8 per cent.
The TNS Worldpanel grocery market share figures showed buoyant sales for grocer, up 6 per cent against the previous year, boosted by increased prices of fresh produce and bread.
Total expenditure came in at£17.9 billion and the average spend rose by 2 per cent to£15.62.
According to the report, Morrisons is 'now firmly out of the doldrums', with another period of sales growth of 4 per cent. TNS Worldpanel director of research Edward Garner said: 'This will have to increase above the current market growth of 6 per cent if we are to see its share increase from the level of 11 per cent.'
Waitrose achieved a record share of 3.9 per cent for the period and, of the discounters, the strongest performance came from Aldi 'thanks to store extensions and acquisitions,' he added.
Kwik Save's market share collapsed over the period, down by 86 per cent year on year.