https://www.cnbc.com/2019/01/09/why-apples-fall-from-grace-might-have-a-bigger-impact-on-your-pocket-than-you-think.html

Shares of the tech giant are down over 30 percent from its October high, shedding more than $400 billion in market capitalization from peak to trough.

Apple's collapse comes amid growing fears over iPhone demand and trade tensions. Last week, the stock fell nearly 10 percent in a day, setting its worst performance since 2013 after CEO Tim Cook told CNBC that the company could come up short on its quarterly earnings report later this month.