Which is Britain's worst-performing supermarket chain? (hint: it's not Tesco)

Tesco’s been getting a lot of flak for its performance lately. But turns out, it’s not the worst-performing grocer of the “big four” supermarkets.

Asda has just reported a 3.9% fall in sales in the 15 weeks to 19 April – this is its worst quarterly performance since 2006.

Over similar periods, Morrisons saw a 2.9% drop while Sainsbury’s saw a 1.9% fall. Tesco reported a drop of 1% in slaes in the three months to 28 February.

Andy Clarke, chief executive, Asda, said: “I can’t remember a time when our industry has seen such a dramatic change in market structure.

“It’s clear the big grocers are losing market share and the discounters are continuing to grow.”

Clarke added: “Whilst I take no pride in reporting a negative number, we are in a period of expected turbulence, not distress. 

“Fundamentally, Asda remains a balanced, healthy sustainable business.”