What drives long-term Treasury yields more than central bank rate moves?
Core argument: The ten-year Treasury rate of 4.18% at the start of 2026 sits within reach of the intrinsic risk-free rate of 5.10%, estimated by summing 2025 inflation and real GDP growth.
The Fed’s much publicized forays into changing the Fed Funds rate has some effect on the short term treasuries, but long term treasuries are driven less by the Fed’s actions (or inaction) and more by expected inflation and real growth. I capture that relationship every year by estimating an intrinsic ten-year risk-free rate, obtained by summing together actual inflation for the year and real GDP growth and comparing it to the ten-year treasury bond rate. Over the seventy years of data in this graph, it is clear that the big movements in treasury rates are captured in the intrinsic risk-free rate, with higher inflation in the 1970s coinciding with the rise in the treasury rate, and the sustained low rates of the last decade largely in sync with the low inflation and anemic growth during the period. As you can see, after a stint (2021-25) where the intrinsic risk-free rate was well above the ten-year treasury rate, largely because of higher inflation, the treasury rate of 4.18%, at the start of 2026, is within reach of the intrinsic rate of 5.10%, obtained by adding inflation and real growth in 2025.



