CrowdMood Column
How to read the US 10-year yield: policy path, inflation, and term premium
The federal funds rate is set by a committee eight times a year. The 10-year Treasury yield is set by the market every second. Mortgage rates, corporate borrowing costs, and the discount rate used to value long-dated equities follow the 10-year far more closely than the funds rate. That is why this desk says the 10-year, not the funds rate, writes the constraint. This guide explains how to take the number apart.
Two pieces: the expected path and the term premium
A 10-year yield can be thought of as the average short-term rate investors expect over the next ten years, plus extra compensation for locking money up that long. The extra compensation is the term premium. The Federal Reserve Bank of New York publishes a model estimate of it, often called the ACM term premium. The estimate is a model output, not an observed price, but it is useful for asking whether a move in the 10-year came from rate expectations or from investors demanding more to hold duration.
When the Fed cuts and the 10-year falls, the expected path did the work. When the Fed cuts and the 10-year rises, the term premium or inflation expectations did the work. The second case is the one that surprises borrowers.
Inflation expectations: nominal minus real
The Treasury also sells inflation-protected securities, TIPS. The gap between the nominal 10-year yield and the 10-year TIPS yield is the breakeven inflation rate: the average inflation at which the two bonds would pay the same. Breakevens move with energy prices more than with most other inputs, because gasoline and diesel feed headline CPI quickly. A tight oil market can lift breakevens and the 10-year even while the policy rate is being cut.
Supply: auctions and the deficit
The Treasury sells new 10-year notes at regular monthly auctions. When an auction clears at a higher yield than the market expected, traders call it a tail, and it signals that buyers wanted more compensation to absorb new supply. Large and persistent deficits mean more of these auctions. That pressure shows up in the term premium, not in the funds rate.
Why the 10-year is the constraint
Equity valuations are present values of future cash flows, and the long rate sets the discount. Assets whose value depends on cash far in the future, such as unprofitable growth companies or long-lived infrastructure, are the most sensitive. Companies that refinance debt price new bonds off Treasury yields. Governments pay interest on a growing stock of debt at rates that drift toward the 10-year as old debt matures. A policy rate cut does not change any of those if the long end does not follow.
A short checklist for a big move
When the 10-year moves sharply in a day, check four things. Did breakevens move, and did crude move with them? Did the term premium estimate move, or was it the front end repricing Fed expectations? Was there an auction tail or a supply announcement? Did real yields rise, which tightens financial conditions directly? Answering those four separates a growth scare, an inflation scare, and a supply scare, which call for different readings of equities, gold, and the dollar.
This desk reads gold and silver against that real yield. When real yields rise and bullion holds, the metal bid is responding to goods and energy inflation that the long end has not fully priced. When both fall together, the bid was riding rate-cut expectations.
Why a Korean reader should watch it
Korean government bond yields often move with U.S. Treasuries, so a jump in the U.S. 10-year can lift Korean long rates and the fixed rates banks offer on loans even when the Bank of Korea has not moved. A wider gap between U.S. and Korean rates also tends to pressure the won, which raises the won cost of imported energy.
Market context
These series provide context. Co-movement does not establish causation.