https://finance.yahoo.com/news/apple-caution-grows-sell-ratings-133353144.html

The caution has been largely driven by uncertainty surrounding demand for the company’s critical iPhone line, with the U.S.-China trade war seen as a particular headwind. In January, Apple cut its revenue outlook for the first time in almost two decades, in large part because of iPhone weakness. Apple’s third-quarter results are currently expected to come out on July 30.

According to data compiled by Bloomberg, more than 60% of Apple’s 2018 revenue was related to the iPhone, while 20% came from China, which is also a critical part of its supply chain. Last week, Citi wrote that Apple’s China sales “could be cut in half” due to “a less favorable brand image desire.”