Cracks in the glass

摘要

LAST SUMMER the market value of Apple passed $1trn, a first for any publicly traded Western company. It did not stay there for long. In November it passed the $1trn mark again, travelling in the other direction. Last week Tim Cook, the smart-phone maker's boss, cut revenue forecasts for the first time in over a decade. Apple's shares plunged a further 10% on the news, dragging the world's jittery stockmarkets down with them.