The Fed lowered rates by 25 basis points to a 20-month low, but economists say tariffs may throw a wrench in the rate cutting cycle.

JPMorgan Chase fell 4.3%, a day after banks decisively led the market on expectations that a stronger economy and lighter regulation would mean fatter profits. It and Goldman Sachs were the biggest reasons for the Dow’s slight loss.

Treasury yields remained lower for the day after the Federal Reserve announced its policy decision—a quarter point cut that traders had anticipated. The 2-year Treasury yield recently fell to around 4.

The rate cut follows a half-point cut on Sept. 18. The short term rate is used for overnight loans among banks, but it plays a huge role in influencing many interest rates that consumers and businesses pay to borrow throughout the economy,