The Reserve Bank of Australia’s Index of Commodity Prices increased 5.5% year-on-year in September 2026, matching August’s rise. Gains were broadly spread across commodities, excluding iron ore, alumina and copper ore prices. In Australian dollar terms, the index rose 6.6% from a year earlier. Monthly growth accelerated to 1.3% in SDR terms (a currency unit used by the IMF), from 0.3% in August. The rural, non-rural and base metals subindices all increased during September, while the index rose 1.0% month-on-month in Australian dollar terms.