Late Monday evening, Apple posted an update on their Investor Relations Page. It was the President's Day Holiday, and obviously Apple was anxious to down-play this news.
The news was that Apple would have to reduce their Quarterly Guidance. Two factors were reducing Apple sales: the first was slow down in Apple iPhone production due to the Covid-19 Virus affecting China. And the second, related news was that Apple Stores throughout China were closed also due to the pandemic.