As an aside, the 10-year Treasury yield jumped late Friday, January 16th, closing above the 4.20% yield level for the first time in several months.
There was no specific news explaining why the yield surged like that. However, the equity markets reacted accordingly.
https://seekingalpha.com/article/4860982-its-new-year-at-least-so-far-new-stock-market?source=feed_all_articles