https://techcrunch.com/2020/02/17/apple-will-miss-revenue-forecast-as-coronavirus-impacts-its-manufacturing-sales/

Today Apple announced that its prior financial forecast, provided during its January earnings cycle, is no longer valid. In a letter to investors today, the technology giant said that it “do[es] not expect to meet the revenue guidance we provided for the March quarter” due to impacts stemming from the coronavirus that has shuttered large parts of China, and is reverberating through the global economy.

In its letter Apple said that its prior guidance was based on its “best estimates about the pace of return to work following the end of the extended Chinese New Year holiday on February 10.” As China’s return to work has proved halting, and the coronavirus itself more intractable than some anticipated, the company’s change in guidance is almost unsurprising.