AUD/USD Exchange Rate: What Drives the Australian Dollar vs. US Dollar

As of November 28, 2022, the exchange rate was 1 AUD = 1.04 USD. However, this rate fluctuates continuously based on complex interacting factors.

Key Drivers of AUD/USD

1. Commodity Prices (Primary Driver)

Australia is a top global exporter of iron ore, coal, LNG, gold, lithium, wheat, beef. When commodity prices rise:

• Export revenues increase → higher demand for AUD
• Terms of trade improve → current account strengthens
• AUD appreciates

Iron ore alone accounts for ~30% of export value; its price correlation with AUD is historically strong.

2. Interest Rate Differentials

• RBA (Reserve Bank of Australia) vs. Federal Reserve policy rates
• Higher Australian rates → capital inflows → AUD demand ↑
• Carry trade: borrow low-yield USD, invest in high-yield AUD assets

3. Relative Economic Performance

• GDP growth, employment, inflation, productivity
• China's economy (Australia's #1 trade partner) critically important
• US economic resilience affects USD safe-haven demand

4. Global Risk Sentiment

• AUD = "risk-on" currency (correlates with equities, commodities)
• USD = "safe-haven" currency (rises in crises)
• Geopolitical tension, financial stress → AUD sells off, USD rallies

5. Speculation & Positioning

• AUD is 5th most traded currency; large speculative futures positions
• Commodity Trading Advisors (CTAs), hedge funds amplify trends
• Positioning extremes often precede reversals

Historical Context

• Parity (1.00): First reached Oct 2010; held 2011–2013
• Post-2013: Commodity bust + China slowdown → 0.70–0.80 range
• COVID crash (Mar 2020): 0.55 low
• 2021–2022 recovery: Commodity boom → back above 0.75

Practical Implications

• Importers (US goods): Stronger AUD = cheaper imports
• Exporters: Weaker AUD = more competitive
• Travelers: Exchange rate directly affects purchasing power
• Investors: Currency exposure in international portfolios

Monitor: RBA/Fed meetings, Chinese PMI, iron ore price (SGX 62% Fe), US dollar index (DXY), risk assets (S&P 500, copper).