Sainsbury’s was the only retailer to increase its market share in the last three months, according to the latest data from Kantar Worldpanel.

The retailer increased its share from 16.9% to 17% in the 12 weeks ended 17 February, beating the market with a 4.6% growth rate, Kantar revealed today (26 Febuary).

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Tesco, however, saw its share of the grocery market fall to 29.7% from 30.1%, while Asda’s fell from 17.8% to 17.7%. Morrisons was the only major grocer to post a sales decline, with its market share also down, to 11.8% from 12.4% last year.

Upmarket grocer Waitrose and discounter Aldi delivered all-time record market shares for the period of 4.8% and 3.3% respectively, indicating that “market polarisation is continuing”, Kantar said.

The figures reveal the impact of the first five weeks of the horsemeat scandal, which broke on 16 January.

Edward Garner, director at Kantar Worldpanel, says the issue has so far only affected the performance of individual markets rather than where consumers are choosing to shop, with frozen burger sales down by 43% in the period. Frozen ready meals declined by 13%.

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The total grocery market is growing at an annual rate of 3.7% which lags behind grocery price inflation of 4.3%.

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