World Bank Precious Metals composition:
- Gold 77.8%
- Silver 18.9%
- Platinum 3.3%
Total 100%.
Fixed index composition weights.
GMI displays the World Bank-published Precious Metals Index; it does not calculate the published index from these weights. These figures are the World Bank's own documented methodology for how it builds that index — shown here as explanatory context only, never as current market share, portfolio allocation, or a monthly-recomputed weight.
World Bank monthly historical/reference data, in nominal USD — not GMI live spot data and not dealer pricing. Historical methodologies vary by period: Gold and Platinum's methodology changed in June 2025, and Silver's historical methodology also differs across earlier periods. Not every observation in this series is a modern spot price.
Index base year = 2010 (2010 = 100). Base year 2010=100 index values compare each month's composite level to the World Bank's own 2010 average — never recomputed or rebased by GMI.