Federal Reserve, Rates and the Dollar Index

Higher US interest rates, relative to other major economies, tend to attract capital into US dollar assets, because investors can earn more holding dollars. That demand tends to support the dollar, and by extension DXY. The reverse also holds: when the Fed is expected to cut while other central banks hold or hike, that relative-yield advantage shrinks and the dollar tends to soften. The word "relative" is doing the work here — it's rarely about the US in isolation.

Markets move on expectations, not just the current rate. Treasury yields across the curve (the 3-month bill through the 10- and 30-year) reflect where traders think policy is headed, and often move well ahead of an actual Fed decision. A single strong or weak data print (payrolls, CPI, PCE) can shift those expectations sharply, which is why the dollar sometimes moves more on a jobs report than on the Fed meeting itself.

The Fed's target rate range and its statement language at each FOMC meeting; the 2-year and 10-year Treasury yields as a read on near-term and longer-term rate expectations; and the US data that feeds into the Fed's own reaction function — employment, inflation and growth. Our daily edition's "Rates & the Fed" section tracks all of this against the day's DXY move, so you can see the mechanism in action rather than just the outcome.

See What Is the DXY? for how the index itself is built, and DXY Forecast and Outlook for how rate expectations fit into a broader read on where the dollar might go next.