What a Gold IRA adds to a retirement strategy is best understood through correlation, not returns. Gold’s price movements have historically had a low or even negative correlation with the S&P 500 during specific stress periods — meaning when stocks fall sharply due to a financial crisis or currency concern, gold has often held value or risen, even though the two assets don’t move in a predictable, tight relationship the rest of the time.

That low correlation is the actual value-add, separate from whether gold’s long-term average return beats stocks (historically, it usually hasn’t). A portfolio that combines negatively-correlated assets can have a smoother overall path — fewer, less severe drawdowns — even if the total return over decades is similar to a portfolio without that diversification.

The tradeoff is that gold also doesn’t produce income the way dividend-paying stocks or bond coupons do, so a large allocation gives up growth and cash flow in exchange for that stability. Most advisors who recommend it at all suggest 5-15% of a portfolio — enough to meaningfully change how the portfolio behaves in a stress period, without giving up so much growth potential that it drags down long-term results.