Why is the U.S. Dollar Declining?

T.S. Eliot wrote that "April is the cruelest month." For the U.S. dollar, that certainly seems to have been the case this year. As of April 24th it had fallen by 4.9% since the start of the month, when the U.S. announced a wide array of tariffs on trading partners. It was one of the largest monthly declines since 2009. It is currently down 7.3% from its 2025 peak on January 13th.

The dollar's drop has raised concerns because it coincided with a spike in U.S. interest rates—an unusual event. Typically, when U.S. bond yields are higher than those in other major developed countries, the dollar rises. During times of heightened market volatility, Treasury yields tend to fall, because historically U.S. Treasuries have been perceived as a "safe haven" amid uncertainty. However, in early April the pattern reversed.

The dollar dropped recently despite U.S. bond yields moving higher vs. yields in other major markets

BB US Dollar Index graph

The most likely explanation is that investors sold dollars because they were reacting to the widespread imposition of tariffs that they believed could slow U.S. growth and reduce the expected return on investment. The tariff announcements caused investors to reassess the outlook for the economy. In addition, President Donald Trump's comments about potentially replacing Federal Reserve Chair Jay Powell due to differences over interest rate policy likely caused investors to pull back. The independence of the central bank is important to investors. Consequently, risk aversion rose and because the U.S. appeared to be the source of the risk, investors likely moved out of dollar-denominated assets.