Sainsbury’s shares slip as margin miss overshadows grocery gains
Half year pre-tax profit up 4.7%Tasty grocery performanceArgos sales disappointFirst half sales and profits rose at Sainsbury's (SBRY) as the UK's second biggest supermarket continued to secure market share gains in groceries, making up for a soft first quarter at Argos and in general merchandise.CEO Simon Roberts insisted Sainsbury's core food business is 'making the biggest market share gains in