Britain's biggest retailer, lost grocery market share in the run-up to Christmas as rivals fought back against its price-cutting campaign and cash-strapped shoppers flocked to discount stores, according to new data.
Market researcher Kantar Worldpanel said grocery sales rose 4.8 per cent in the 12 weeks to 25 December.
That lagged a 5.9 per cent increase in food price inflation, suggesting Britons are cutting back on the number of groceries they buy and/or switching to cheaper alternatives.
Many shoppers are curbing spending as disposable incomes are squeezed by rising prices, muted wages growth and government austerity measures.
Tesco, which reports Christmas sales figures on Thursday, lagged the broader grocery market with sales growth of 3.3 per cent over the 12 week period, Kantar said.
The supermarket giant started cutting prices in September in a bid to reverse a drift lower in its market share and predicted its sales would suffer in the short term as a pick up in volume would lag an immediate drop in cash taken at till.
"Tesco's 'Big Price Drop' has had an aggressive response from its competitors and put pressure on its (market) share, which has slipped from 30.5 per cent a year ago to 30.1 per cent," Kantar said.
Asda outperformed the broader market with sales growth of 7.3 per cent while J Sainsbury, which posts third-quarter sales on Wednesday, saw sales grow 5.5 per cent and its market share reach its highest level since March 2003.
Elsewhere, upmarket grocer Waitrose continued its run of strong sales growth, but was outpaced by budget chains Lidl, Iceland and Aldi.
City A.M. Reporter