How the size and mix of the reserve are framed, not prescribed.
The Office does not prescribe a single allocation figure for the reserve layer, nor a single mix of metals. It frames both as considered bands — the size band against the concentration, liquidity, horizon, and jurisdictional profile of the client’s broader balance sheet; the mix against the client’s preferences for divisibility and exposure to the platinum-group metals complex.
For this engagement, the considered size band is framed against the Ibbotson body of work on long-horizon correlation properties, the published behavior of central-bank holders, and the client’s own stated intent to separate the reserve from the exposure layers. The band is presented alongside the tradeoffs at each end — smaller reserves preserve more capital for operating and exposure use; larger reserves trade that capital for a deeper non-counterparty base.
For the mix, the Office proposes a gold-dominant allocation — approximately 75% gold, 20% silver, and up to 5% platinum-and-palladium. Gold is dominant for structural reasons: the deepest monetary record across multi-century horizons, the consistent preference of central-bank institutional holders (fifteen consecutive years of net purchases at the time of writing), and the deepest liquidity across the full range of reserve-scale holdings. Silver is proposed as a secondary monetary metal — a complementary non-counterparty exposure with its own supply-demand dynamics and its own institutional holding history. Platinum and palladium are named as optional for clients with specific reasons to want exposure to the platinum-group metals complex; they are priced and cleared on different supply-demand fundamentals than gold and silver. The operational implications of any mix — storage, documentation, and exit mechanics — are handled in §04 (form) and §07 (exit posture), not here.
The size and mix decisions within the bands are the client’s, made in coordination with existing investment, legal, and tax counsel. The brief documents the reasoning so the decisions are made with the analysis on the page rather than against a number.