Asda was the only major supermarket in the UK to see its sales decline in the lead up the crucial Christmas trading period.
Data from NIQ shows the grocer’s market share slipped 1.1 percentage points to 12.1% as sales fell 4.2% in the 12 weeks to 30 November.
Ocado remained the UK’s fastest growing retailer as sales rocketed 16.2%, pushing its market share up 0.2 percentage points to 1.8%.
M&S has also entered the busy trading period on a high after sales jumped 10.6%. Its market share rose 0.2 percentage points to 3.7%.
Fellow upmarket grocer Waitrose’s market share has faltered after sales edged up 1.9% in the 12 weeks.
The news came as Kantar reported on Tuesday that supermarket sales are set to exceed £13bn for the first time over the four weeks of December driven by a surge in demand for premium product lines as shoppers gear up for Christmas.
Sales of premium own-label products in particular, saw a boost, with the proportion of spending on these items climbing to 5%, and expected to reach nearly 7% by the end of December.
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