Gold pays no coupon. Everything about how it responds to macro conditions follows from that one sentence, and the series that captures it best is the real yield on inflation-protected government debt. This edition is a working explanation of the mechanism rather than a forecast — we do not publish price targets.
The mechanism
Holding gold costs you the return you could have earned on a safe asset instead. If a ten-year Treasury Inflation-Protected Security yields two per cent above inflation, the opportunity cost of holding a non-yielding asset for a decade is compounding two per cent a year. If that same real yield is negative, the safe alternative is guaranteeing you a loss of purchasing power, and the cost of holding gold instead falls to roughly nothing.
That is the entire argument. It is unusually clean for a macro relationship because it does not require anyone to be irrational, to panic, or to hold a view about inflation. It only requires investors to compare two assets on the return they actually keep.
Nominal rates do not do this job. A nominal yield of six per cent alongside eight per cent inflation is a negative real yield and a historically supportive environment for gold, which is why commentary anchored on the policy rate keeps getting the direction wrong.
Where to find it
The Federal Reserve Bank of St. Louis publishes the ten-year TIPS constant-maturity yield free of charge as series DFII10, updated daily. The ten-year break-even inflation rate — the difference between the nominal and inflation-protected yields, and therefore the market's implied inflation expectation — is series T10YIE on the same site. Between those two you have both the level and its decomposition, at no cost, with a full history.
Two habits make the series more useful. Watch the direction of change as well as the level: gold has historically responded more to a real yield that is falling than to one that is simply low. And watch the dispersion between regions — euro-area and Japanese real yields have spent long periods well below US levels, which matters for a metal priced in dollars but held globally.
When the relationship broke
An honest framework names its failures. This one has at least three well-documented ones.
2013. The taper tantrum drove real yields sharply higher and gold fell hard — the relationship worked, but the magnitude on the gold side far exceeded what the rate move alone implied. ETF liquidation and positioning unwinds did the rest.
2018–2019. Real yields rose through much of 2018 while gold declined only modestly, then rallied strongly in 2019 as the Federal Reserve reversed course. The lag between the rate signal and the gold response was long enough to bankrupt anyone trading it mechanically.
2022–2023. The clearest breakdown of the modern era. Real yields rose to levels last seen before the financial crisis, and the textbook response would have been a severe gold bear market. Gold instead held its range and then broke higher. The widely accepted explanation is that a different demand bucket — official-sector buying, discussed in Edition 18 — absorbed the pressure. Whatever the explanation, the honest conclusion is that a single-variable model of a multi-variable market will periodically be wrong, and it will be wrong at exactly the moments that matter most.
How to use it without over-using it
Treat real yields as a regime identifier rather than a timing tool. The question it answers well is what kind of environment is this? — is the opportunity cost of holding gold rising or falling, and from what level. The question it answers badly is should I buy this week?
Pair it with a second and a third input before drawing a conclusion. The Commitments of Traders report tells you whether speculative positioning is already crowded on the same side of the trade. Official-sector reserve data tells you whether a price-insensitive buyer is present. Physical premiums in retail markets tell you whether the metal itself is tight. When those disagree with the rate signal, the disagreement is the information.
Positioning discipline
We publish frameworks and parameters, not names and not price targets. Our monthly mining screen filters on production scale, all-in sustaining cost relative to spot, balance-sheet leverage and jurisdiction ranking; we publish those parameters so readers can run their own version. A screen is the start of research, not a conclusion.
Reading list
Three primary sources worth an hour each: the World Gold Council's quarterly Gold Demand Trends, the BIS Quarterly Review's coverage of monetary architecture, and the IMF working paper series on reserve currency composition. All are published free by their issuers, and all are better than the commentary written about them.