Interest rates and real yields: what is the difference?

Market commentary often says "rates went up" without saying which rate. For gold, the distinction between a central bank's policy rate, a government bond yield and a real yield is more than technical. Each tells you something different.

Three different numbers

The policy rate is set by a central bank, such as the U.S. Federal Reserve. It changes at scheduled meetings and anchors short-term borrowing costs.

A nominal bond yield, such as the 10-year U.S. Treasury yield, is set by the market every day. It reflects expectations for future policy rates, inflation and the extra return investors demand for lending over a long period.

A real yield is the nominal yield after accounting for expected inflation. It estimates the return an investor expects in terms of purchasing power.

How real yields are measured

In the United States, inflation-indexed Treasury securities offer a market-based measure of real yields. The gap between a regular Treasury yield and the inflation-indexed yield of the same maturity is called the breakeven inflation rate: a rough guide to the inflation the market expects.

As an illustration only: if a nominal yield were 4.0% and breakeven inflation were 2.5%, the real yield would be roughly 1.5%.

Real yield ≈ nominal yield − expected inflation.

Why real yields matter for gold

Gold does not pay interest or dividends. When real yields are high, investors give up more purchasing-power return by holding gold instead of an inflation-protected bond. When real yields are low or negative, that opportunity cost shrinks. This is why many analysts watch real yields more closely than the policy rate.

The connection is not fixed, however. Strong buying by central banks, safe-haven demand and changes in physical markets have at times pushed gold in directions that real yields alone would not suggest.

Questions we ask

• Which rate does the commentary mean?
• Did nominal yields move because of growth expectations or inflation expectations?
• What happened to real yields and breakeven inflation?
• Are other forces, such as official buying, playing a larger role right now?

The takeaway: "rates" is not one number. Real yields capture the opportunity cost of holding gold more closely than the policy rate, but they are one input, not the whole explanation.

Educational content only. This article does not consider your objectives or financial situation and is not a recommendation to buy, sell or hold any asset. Trading involves a risk of loss.