FTSE 100 Live: London stocks tread water, Debenhams returns, Citi...
FTSE 100 down 24 points at 8,576 Overnight Wall Street sell-off saw Nasdaq fall 4% Updates from Persimmon, Boohoo, Domino's Pizza, Kier and Costain in focus 11.39am: Citi downgrades US stocks US banking giant Citi has downgraded its stance on US …