AIB Group Headquarters in Ballsbridge:  AIB shares rose by 9.3 per cent to 15.3 cent to give the company a market valuation just shy of €80 billion. The share price has almost trebled in the past three months as retail investors see it as a decent punt on the recovery of the economy. Photograph: Alan Betson

European stocks gained for an eighth day as companies from Royal Philips to Akzo Nobel reported profit that beat estimates and investors speculated th(...)