For decades, metals have been excluded from most employer-sponsored plans, not because they lacked merit, but because fiduciaries feared the regulatory risk of offering anything outside the conventional stock-and-bond model. That dynamic is changing.

Last year, new federal directives instructed regulators to rethink the rigid constraints surrounding alternative assets in retirement plans. The objective was clear: remove legal ambiguity and provide plan sponsors with a safe harbor to include a broader range of investments—everything from private equity to tangible assets and, crucially, precious metals.

Nothing in the rule forces companies to add metals, of course. But for the first time, it permits it without creating a compliance nightmare. And that may be enough to reshape demand in a market that was already tight long before anyone in Washington decided to modernize the 401(k) framework.