S&P 500 has its worst day since October. Here's why stocks were down.
- Posted on January 20, 2026
- By Usa Today
- 8 Views
S&P 500 has its worst day since October. Here's why stocks were down.
US stocks fell, with the S&P 500 having its worst day since October, after Trump threatened tariffs on countries that oppose his plans for Greenland.
