Argos also reported healthy total sales growth of 4.1 per cent and both reported a bumper Christmas period, with Sainsbury's seeing a record 30 million customer transactions and £1 billion sales across the group. Results from Morrisons were released on Monday, followed by Kantar Worldpanel's market share report, which saw Sainsbury's outpaced by its smaller rival posting growth of 2.9 per cent. READ MORE: Morrisons reports best sales in 7 years Sainsbury's also saw a market share loss of 0.6 per cent.