https://www.cnet.com/news/apple-reportedly-cuts-production-orders-for-iphone-xs-xs-max-and-xr/

Low demand and Apple's decision to offer three three new models (it traditionally released two each year until 2017) made it difficult to anticipate production requirements, the report said.

Major iPhone suppliers Qorvo, Lumentum Holdings and Japan Display cut their quarterly profit estimates last week, citing an order reduction from a large customer -- Apple accounts for a third to half of those companies' revenue, the Journal notes.