Weights for the TWI

The Australian dollar trade-weighted index (TWI) is the price of the Australian dollar in terms of a group (or ‘basket’) of foreign currencies based on their share of trade with Australia. While bilateral exchange rates are the most frequently quoted exchange rates, the TWI provides a broader measure of whether the Australian dollar is appreciating or depreciating against the currencies of its trading partners.

New weights for the Australian dollar TWI will apply from 7 January 2026. The weights are based on the composition of Australia’s merchandise goods and services trade for the 2024/25 financial year. The updated TWI – which includes 19 foreign currencies – contains all currencies in the previous TWI, with the addition of the Papua New Guinea kina. The Chinese renminbi weight decreased by 2 percentage points but continues to have the largest weight in the TWI, at 28 per cent. The weight of the US dollar increased by 2¼ percentage points to 13 per cent and remains the second-ranked currency in the TWI. Other changes in individual currency weights were within +/− 1¼ percentage points.

For further details regarding the methodology used for constructing the index, please see ‘TWI – Method of Calculation’.