AUD/USD quotes US dollars per Australian dollar. Its drivers include expected interest-rate differences, Australia’s terms of trade and global risk sentiment. Those influences can reinforce or offset one another; a commodity rally or an equity sell-off does not guarantee a particular exchange-rate move.

The aussie on the global map

A hypothetical AUD/USD rate of 0.67 means one Australian dollar is quoted at 67 US cents, before any spread or charge. In the BIS April 2022 survey, the USD/AUD currency pair represented 5.1 percent of global OTC FX turnover on a net-net basis; 5.4 percent was its 2019 share. This covers the surveyed FX instruments and is not a retail broker’s liquidity measure.

Commodity export prices and foreign demand are relevant to Australia’s terms of trade, which the RBA identifies as an influence on the currency. They operate alongside expected interest rates and risk sentiment; the exchange rate is not determined by one export price or a single domestic indicator.

AUD/USD at a glance
Market nicknamethe aussie (pronounced “ozzie”)
Share of global turnover5.1% of OTC FX turnover in April 2022 (BIS; all instruments, net-net)
Influences to compareExpected relative rates, commodities and international conditions; no guaranteed direction
Risk sensitivityMeasure the period; pro-cyclical does not mean every rally or crisis has the same result
LiquidityCompare actual venue and timestamp; no universal Asia-Pacific maximum

The RBA and the rate gap with the Fed

The Reserve Bank of Australia sets the cash rate within an inflation-targeting framework with a 2–3 percent range and a 2.5 percent midpoint. For AUD/USD, expected Australian and US interest rates are one influence on relative returns and demand for the currencies. The rate gap does not by itself determine capital flows or the pair’s long-term direction: exchange-rate risk, commodity prices and changing expectations also matter.

Expected relative returns can affect demand for AUD and USD, but a higher policy rate does not guarantee currency appreciation or a profitable carry trade. Expectations, risk compensation and the exchange-rate move also matter. Compare both central banks’ decisions with what was already priced in; how a Fed decision affects forex explains the US side.

One commodity rises, our basket falls

A rise in one commodity does not automatically describe the whole price basket. In this model, the more heavily weighted component reverses the aggregate result.

Scroll sideways to see the full diagram

One commodity rises, our basket fallsA hypothetical two-component index with fixed weights of 20 and 80 percent. Both price indices start at 100. Component A rises to 120, up 20 percent; B falls to 90, down 10 percent. The basket is 0.20 times 120 plus 0.80 times 90, or 96, down 4 percent. A contributes plus 4 percentage points and B minus 8. Contribution bars use one linear scale and a shared zero. These are not actual Australian export weights, an official ABS index, terms of trade or an AUD/USD forecast.ONE COMPONENT IS NOT THE BASKETFixed model weights • Both start at 100ItemWeightStartEndA20%100120B80%10090Contribution to change — ppA: + 4 ppB: − 8 pp− 100+ 10Index: 100 + 4 − 8 = 96Change: − 4% • No AUD/USD forecast

Assumptions: Hypothetical price indices for two unchanged components, both starting at 100 in the same reference currency. The fixed 20% and 80% weights sum to 100%; they do not estimate Australia’s export structure. Only the price indices change. No currency conversion, quality, quantity or composition changes. This is not the official ABS methodology, terms of trade, producer profit or a currency forecast.

Both price indices start at 100, with weights fixed in advance. The result is 0.20 × 120 + 0.80 × 90 = 96. A contributes 20% × 20% = + 4 pp relative to the base. B contributes 80% × (− 10%) = − 8 pp. The total − 4 pp means a 4% fall in this model index.

This is a controlled aggregation example. Quantities, composition and weights stay fixed, so a change in basket structure does not explain the result. A rising A does not establish that the whole basket rises.

RBA — drivers of the AUD discusses terms of trade and export prices among the AUD’s influences. ABS — trade-price methodology, December 2024 describes the broader construction and updating of official index weights. Our 20 / 80 weights are not ABS weights; the model reproduces neither its index nor an export-to-import price ratio. Do not translate − 4% mechanically into an AUD/USD move.

Fixed weights allow one component to rise while the basket falls.

Commodities at the heart of the currency

Export-price changes can influence the terms of trade and income received by Australian producers. Where a producer converts foreign-currency receipts into AUD, that transaction creates demand for AUD, but hedging, payment timing and other flows affect the total market impact. There is no compulsory one-for-one conversion of every export receipt into a currency rise.

Consider a hypothetical fixed quantity of a USD-priced export, with fees and hedging omitted. Its price rises from USD 100 to USD 110 while AUD/USD rises from 0.6600 to 0.7260, both by 10%. The receipt in AUD is unchanged: 100 ÷ 0.66 and 110 ÷ 0.726 both equal about AUD 151.52. With an unchanged 0.6600 exchange rate, USD 110 would instead give AUD 166.67. The exchange rate is an input to this exercise, not a forecast derived from export revenue. Specify invoice currency, cost currency and conversion timing before comparing receipts.

Use the commodity basket and trade context rather than one headline. A rise in one component can coexist with a falling weighted basket, as the hypothetical diagram shows. Treat any proposed link to AUD/USD as a hypothesis to test against other influences, rather than calling a three-factor confirmation the most reliable signal without evidence.

China as a buyer and a risk barometer

Demand from China can affect Australia’s export prices and terms of trade. Check the actual products, period and data rather than assuming that stronger Chinese industry lifts AUD within a fixed number of weeks. Other currency-market influences can dominate or reverse the expected response.

Compare the relevant Australian, Chinese and US release calendars with the actual AUD/USD response. Chinese purchasing-manager surveys are one input, while NZD/USD and USD/CNH offer different exposures. Their reactions are not interchangeable or fixed.

Sessions, liquidity and spreads

Australian releases and regional trading can make Asia-Pacific hours relevant, but they do not establish that every retail broker offers its deepest liquidity or tightest AUD/USD spread then. Measure quoted spread, execution and depth for the actual venue and time, including release windows and daylight-saving differences.

US releases can affect AUD/USD through the dollar and changing expectations. Check their current scheduled times in your own time zone and compare conditions before, during and after release. A scheduled session does not guarantee a second liquidity peak or a predictable response.

What now — first steps with the aussie

Choose a trading horizon that fits the actual strategy, costs and availability. Observe the Australian, Chinese and US inputs relevant to the pair, and test how their interaction behaves in your data. A currency label does not establish that swing trading is preferable or that the pair has a fixed difficulty ranking.

For a hypothetical contract of 100,000 AUD per lot, 0.10 lot is 10,000 AUD. With a pip of 0.0001 USD per AUD, each pip represents USD 1 before other costs. A filled purchase at Ask 0.6702 closed at Bid 0.6720 produces (0.6720 − 0.6702) × 10,000 = USD 18, or 18 pips. Subtract a hypothetical total commission of USD 1.40 and funding debit of USD 0.60: net USD 16. The execution prices already include the spread, so do not subtract it again. Assume a USD account and no other charges. At an alternative closing Bid of 0.6690, the same trade and costs produce −USD 12 − USD 2 = −USD 14. For another account currency, apply the provider’s conversion rules.

Check portfolio exposure as well as the individual position. AUD/USD and equity holdings can share sensitivity to global risk, but their correlation is not constant or a proof of complete concentration in one factor. Record the exposure and actual correlation over an appropriate sample; intermarket analysis develops that comparison.