Gold, real rates, and the price of insurance

The cleanest way I know to think about gold is to stop asking what it is worth and start asking what it costs to be wrong without it. Gold pays nothing, stores awkwardly, and embarrasses its holders for years at a time. It also has one property nothing else in a portfolio quite replicates: it is an asset with no counterparty.

The empirical regularity of the last two decades is that gold tracks real interest rates, loosely and with long lags. When inflation-adjusted yields are high and rising, the opportunity cost of holding a zero-yield asset is real, and gold usually drifts. When real yields fall — because growth disappoints or because policy is forced to ease into inflation — the math inverts.

Central bank buying has added a second, slower bid underneath the market. Reserve managers diversifying away from concentrated dollar exposure are not trading a view; they are re-weighting a balance sheet, and they tend not to stop mid-program.

For a personal portfolio the practical conclusion is boring: size gold like insurance, not like a conviction trade. A mid-single-digit to low-double-digit share, rebalanced on a schedule rather than on headlines, captures most of the benefit. The moment it becomes the largest position, it has stopped being insurance and become the risk itself.