
Australia’s September inflation figures, due on Wednesday, are the next key data release as AUD/JPY trades higher at around 110.75 in Tuesday’s early European session. A hawkish stance from the Reserve Bank of Australia (RBA) is lending some support to the Australian Dollar (AUD) against the Japanese Yen (JPY). Attention will then turn to Friday’s Bank of Japan (BoJ) interest rate decision.

According to the ASX RBA Rate Tracker, markets now assign nearly a 62% probability to an interest rate rise to 4.85% at the next RBA Board meeting. RBA Assistant Governor Sarah Hunter signalled that further increases are likely when policymakers meet early next month, saying the central bank is “not quite yet” finished with its fight against inflation.
Forecasts for Australia’s Consumer Price Index (CPI) report point to annual inflation of 4.2% in September, with a monthly increase of 0.7% projected for September. Traders are looking to the release for a fresh catalyst, and evidence of stronger inflation could lend the Aussie near-term support.
At Friday’s October policy meeting, the BoJ is expected to leave its interest rate unchanged at 1.25%. Analysts said the central bank is unlikely to offer explicit guidance on when, or how quickly, further rate rises might follow. It must weigh the need to head off an inflation overshoot against the risk that a premature increase could unsettle already nervous markets.
Brown Brothers Harriman analysts describe the BoJ as “widely expected to keep rates on hold at 1.25% and assess September’s 25bps hike before tightening again.” They draw attention to the caution expressed by Governor Kazuo Ueda in September: he warned that “rapid rate hikes could unsettle asset prices,” while emphasising that “it could take some time to confirm that 2% inflation is entrenched.”
Nevertheless, BBH maintains that “firmer underlying inflation leaves scope for a more hawkish Outlook Report, lifting BoJ rate expectations in favor of JPY.” To illustrate the change in market expectations, the analysts note that “the swaps curve price in 75% odds of a 25bps BoJ rate hike to 1.50% at the December 18 meeting and nearly 75bps of tightening in the next twelve months.”
A score of 8.2/10 on FXS Speechtracker puts BoJ’s Himino exactly at the historical average, although his focus on stronger underlying inflation and rising expectations gives the remarks a hawkish slant. Robust AI-related demand is boosting capital expenditure and exports. Together with accommodative financial conditions, low real interest rates and rapid bank lending, this strengthens the argument that inflation is moving towards the 2% target, favouring a firmer Yen.
A greater willingness to adjust policy is suggested by warnings that delaying changes could increase upside inflation risks and harm the economy, although the timing remains dependent on incoming data. The emphasis on stable prices through “suitable monetary policy” as a means of securing sustainable growth points to a gradual move away from ultra-loose settings. That backdrop should constrain Yen losses and keep markets attentive to further steps towards policy normalisation.
Trading below the 100-day simple moving average (SMA) continues to constrain AUD/JPY on the daily chart. A recovery above the Bollinger Bands’ 20-period middle band points to some short-term stabilisation. Meanwhile, a reading of 52.25 on the Relative Strength Index (14) suggests a modest improvement in momentum, but not enough to challenge the broader bearish structure established by the key SMA above the price.
The Bollinger middle band, around 110.20, offers the first downside support, ahead of the psychological 110.00 mark. Further below, the lower Bollinger band near 109.20 provides another potential cushion, where sellers may pause should the pair start falling again.
The upper Bollinger band near 111.20 presents the nearest upside hurdle, followed by the 100-day SMA at 112.00. A sustained move above the latter could open the way for a rally towards the 18 August high of 113.61.
(The technical analysis of this story was written with the help of an AI tool. Know more.)
Among the world’s most actively traded currencies, the Japanese Yen (JPY) takes its broad direction from Japan’s economic performance. More specific influences include Bank of Japan policy, the gap between Japanese and US bond yields, and traders’ appetite for risk, alongside other factors.
Currency control forms part of the Bank of Japan’s mandate, making its actions particularly important for the Yen. At times, the BoJ has intervened directly in foreign exchange markets, usually to weaken the currency. Political concerns among Japan’s main trading partners, however, discourage frequent intervention. Between 2013 and 2024, the BoJ’s ultra-loose monetary stance drove Yen depreciation against its major peers as policy increasingly diverged from that of other leading central banks. The more recent, gradual unwinding of that stance has lent the Yen some support.
The BoJ’s commitment to ultra-loose monetary policy over the past decade widened its policy divergence from other central banks, notably the US Federal Reserve. As a result, the yield gap between 10-year US and Japanese bonds expanded, supporting the US Dollar against the Japanese Yen. That gap is now narrowing, following the BoJ’s 2024 decision to move gradually away from ultra-loose policy and interest rate cuts by other major central banks.
Investors often regard the Japanese Yen as a safe haven, turning to it during periods of market strain because of its perceived reliability and stability. Consequently, turbulent conditions are likely to lift the Yen against currencies considered riskier investments.