Apple leaves Wall Street hungry for more –can it deliver?

Despite strong iPhone sales growth and hints Apple Watch is selling well, investors continue to wonder whether company's popularity has peaked

To Wall Street, Apple is a company where the glass is constantly half-full. Its quarterly results on Tuesday night showed revenues up 33% and operating profits up 37% to $49bn (31bn) and $14.1bn respectively.

However, there were disappointments for investors grown used to quarter after quarter of stellar figures. Unit sales of iPhones rose 35% to 47.5m in the three months ending June, about four times more than the broader smartphone market, but analysts had expected 50m or better.