New data shows Morrisons and Asda gained more customers doing their main weekly food shops in 2012 while Sainsbury’s and Tesco lost shoppers.

Supermarkets Infographic

Data from Ipsos Mori/Mintel shows that in 2012 Morrisons and Asda gained customers doing their main weekly food shop while Sainsbury’s and Tesco lost weekly customers.

However, despite the loss of weekly shoppers, Sainsbury’s in fact grew its overall share over the period due to its aggressive expansion of convenience stores, tapping into the growing trend of consumers buying fewer items more frequently. Online sales also helped boost Sainsbury’s overall share. In the 12 weeks to November 25, Sainsbury’s grew its share to 16.9%, up from 16.7% a year earlier, according to Kantar Worldpanel.

Despite Morrisons growing its share of weekly shoppers last year, its share fell from 12.3% to 11.7% in the 12 week period as it suffered from a lack of convenience stores as well as a limited online offer.

Asda gained shoppers through its Netto conversions building a smaller, in-town store offer. Tesco’s loss of weekly shoppers reflects a fall in market share from 31% last year to 30.7% in the 12 week period to November 25 as chief executive Philip Clarke works to turnaround the retailer’s UK business.