UK supermarkets were buoyed, with Sainsbury’s rising 7.5p to 382.8p, Morrisons 2.5p ahead at 283p and Waitrose’s sales surging 16.8 per cent. Photograph: Rui Vieira/PA Wire

European stocks posted their biggest weekly gain in two months amid optimism that central banks from the US to Japan will continue their stimulus meas(...)