Wall Street’s dwindling reserves of patience for seemingly endless efforts to remake Yahoo appeared nearly exhausted on Thursday after the company said it would take even more time – and money – to find a fix.

With some of the company’s few remaining Wall Street supporters heading for the exits, including analysts at Citigroup and Oppenheimer, the shares dropped another 8 per cent. After little more than six months at the helm, Jerry Yang, chief executive officer, is finding the goodwill with which he was greeted is fast drying up.