Supermarket giant Sainsbury's says it rang up more than £100 million in sales on Christmas Eve in a record-breaking festive trading week.
The chain reported like-for-like sales up 0.9%, excluding fuel, in the 14 weeks to January 5 after its strongest ever performance in the week before Christmas, when it also notched up £16 million in one hour on Sunday December 23.
Sales growth slowed on the 1.9% reported the previous quarter and against last year's 2.1% rise over the Christmas period.
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But the performance confirms the pressure on smaller rival Morrisons, which disclosed a 2.5% slide in Christmas sales earlier this week.
Sainsbury's was the only one of the "big four" players to increase its market share in the run up to Christmas, to 17.1% from 17% a year earlier, while Morrisons saw its share slip to 12%, according to data yesterday from Kantar Worldpanel.
Justin King, chief executive of Sainsbury's, said the group delivered good sales growth in "challenging" conditions.
"We expect the challenging economic backdrop to persist, with customers looking to re-balance their household budget after the festivities and so spending cautiously in the first few months of 2013," he said.
But the group said plans to continue its money-off coupon Brand Match scheme would help ensure it was "positioned to perform well over the next quarter".