FTSE 100 movers: Unscheduled trading update hits supermarkets
Tesco surprised the market with another profit warning, causing shares to plummet. The company said trading profit for the financial year ending February 2015 is not expected to exceed £1.4bn, compared with £3.315bn previously and analysts' forecasts, which ranged from £1.8bn to £2.2bn. Supermarket
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