Central banks buy gold to diversify reserves away from single-currency and counterparty risk, not to earn a return. Because the decision is mandate-driven and executed over quarters, official-sector demand is largely price-insensitive, which puts a persistent floor under gold and weakens the usual real-yield and dollar relationships.
Central banks buy gold to diversify reserves away from single-currency and counterparty risk, so their demand is mandate-driven and largely insensitive to price or carry cost.
Because reserve managers accumulate quietly over months, official-sector demand absorbs supply on weakness and makes gold declines shallower without preventing them.
This price-insensitive buyer is one reason the measured correlation between XAUUSD and the US 10-year real yield is only -0.27 on GoldHunts data since 2015.