
Selling pressure keeps AUD/USD close to its March lows on Wednesday, with the pair trading around 0.6846 at the time of writing, a decline of 0.28% for the day. Weighing on the Australian Dollar (AUD) are growing expectations that monetary policy at the Federal Reserve (Fed) and the Reserve Bank of Australia (RBA) could follow different courses over the coming months.

Demand for the Greenback has strengthened as an upside surprise in US consumer inflation and hawkish comments from Fed officials reinforce expectations of more aggressive interest rate increases. Heading towards the year-to-date peak of 102.94 reached in October, the US Dollar Index (DXY) is up 0.68% on the day, adding to gains for a second consecutive day. The index measures the Greenback against a basket of six major currencies.
At 0.4% MoM in October, the increase in the US Consumer Price Index (CPI) exceeded the 0.3% forecast, although it moderated from September’s 0.6%. Excluding food and energy, core CPI advanced 0.3%, unchanged from September’s pace but above expectations of 0.2%.
Reduced concern about political interference in the Fed’s policy course is a key aspect of the market reaction, according to analysts at Rabobank. They highlight that the response to “the hawkish commentary from Fed officials yesterday, including those from Waller that put the risk of a 50-bps rate hike on the table, says more than just the obvious.” In their assessment, “the market is now fully priced for a December rate hike,” while the comments were notably absorbed “with no real speculation that the Fed would be pressured by political forces not to raise rates,” pointing to less emphasis on possible political influence.
Support for additional monetary tightening also came from other Fed officials, among them Dallas Fed President Lorie Logan and Philadelphia Fed President Anna Paulson. Separately, Fed Vice Chair for Supervision Michelle Bowman emphasised the importance of bringing inflation under control.
In Australia, borrowing costs reached their highest since 2008 after the RBA delivered an expected 25 basis points (bps) increase in its cash rate to 4.85% at the November meeting. This was the fifth hike this year, with policymakers confronting inflation driven by higher oil prices. However, the bank moderated its guidance by removing an explicit reference to further increases if required. As Governor Michele Bullock put it, it was “probably best to pause and assess incoming data.”
OCBC analysts reiterate their base case “for a 25bp cut in 4Q2027.” This is consistent with a shift in market pricing: they observe that the “market has started to price in some chance of easing towards the latter part of 2027,” and that cash rate futures “last priced a 74% chance of a 25bp cut by December 2027.”
Australia’s interest rates and monetary policy are determined by the Reserve Bank of Australia (RBA). Its board of governors takes decisions at 11 scheduled meetings each year, supplemented by emergency meetings when necessary. Maintaining price stability, defined as inflation of 2-3%, is the RBA’s primary mandate. Its remit also includes “..to contribute to the stability of the currency, full employment, and the economic prosperity and welfare of the Australian people.” Adjustments to interest rates are its principal means of meeting these objectives: relatively high rates strengthen the Australian Dollar (AUD), while the reverse applies when rates are relatively low. Quantitative easing and quantitative tightening are also part of the RBA’s toolkit.
Demand for the Australian Dollar can rise when moderately higher inflation prompts central banks to increase interest rates. Higher returns attract capital from global investors seeking profitable places to park their money, supporting demand for the domestic currency, which in Australia’s case is the Aussie Dollar. This modern relationship reflects the easing of cross-border capital controls and contrasts with the traditional view of inflation as negative for currencies because it erodes the value of money.
The Australian Dollar can respond to indicators such as GDP, Manufacturing and Services PMIs, employment figures and consumer sentiment surveys. Such macroeconomic releases indicate the health of an economy, influencing the value of its currency. Investors favour stable, expanding economies over those that are vulnerable and contracting; the resulting increase in capital inflows raises overall demand for the domestic currency and its value. A robust economy may also prompt the Reserve Bank of Australia to raise interest rates, providing further support to AUD.
When interest rate reductions alone cannot restore credit flows through the economy, Quantitative Easing (QE) may be deployed in extreme circumstances. Under QE, the Reserve Bank of Australia (RBA) prints Australian Dollars (AUD) to purchase assets, typically government or corporate bonds, from financial institutions. These purchases supply the institutions with much-needed liquidity. The usual effect of QE is a weaker AUD.
As the opposite of QE, Quantitative tightening (QT) follows a period of quantitative easing once the economy is recovering and inflation begins to pick up. During QE, the Reserve Bank of Australia (RBA) supplies financial institutions with liquidity by buying government and corporate bonds. With QT, it instead halts additional asset purchases and ceases to reinvest the principal from maturing bonds already in its portfolio. This would support the Australian Dollar, making it a positive, or bullish, development for the currency.