Progress on US-China trade over the weekend sent stocks soaring on Monday. Some top commentators say tariffs are still a big risk.

China hailed a trade agreement with the U.S. that will see both sides sharply reduce their tariffs for 90 days, calling it an "important step" that could lead to "deepening cooperation" between the world's two largest economies.

China and the United States announced a truce in their trade war on Monday after talks in Geneva that will roll back the bulk of tariffs and other countermeasures by Wednesday.