US picks fight with China,
ruins all its own companies that are totally dependent on the world's most important economy:
The first US company to achieve a trillion dollar market value, [Apple] boasted trend-setting products, a cash pile larger than the economy of some countries and consumers so loyal they would camp out overnight.
But in recent weeks, the California firm has fallen sharply out of favour.
Its share price has tumbled more than 20% since October, hurting other stocks and infecting the wider market.
...
The iPhone maker has been infected by the market fears, of which there are plenty, including overly optimistic valuations, rising interest rates, currency fluctuation and US-China trade tensions.
China, in particular, is a risk some are watching for Apple, since the Greater China region - which includes Hong Kong and Taiwan - is the source of about 20% of the firm's revenue.