The ongoing Apple lawsuit proves to be a thorn in Qualcomm's side. Net income is down from US$1.6 billion to US$168 million compared to last year's Q4 report. SoC sales have not been affected, however, and the stocks did not drop too much.
https://www.notebookcheck.net/Qualcomm-profits-down-90-Snapdragon-sales-still-going-strong.261602.0.html