Australian Dollar / Japanese Yen

AUD/JPY's rally is driven by a clear monetary-policy divergence: RBA hawkishness vs a "not aggressive enough" BoJ hike.

Catalyst: RBA (Bullock, Sept 18) signaling further hikes on upside inflation risks vs BoJ's Sept 18 hike being perceived as too timid -> widening AU-JP rate differential expectations -> AUD outperformance and JPY underperformance, pushing AUD/JPY higher.

On 2026-09-18, the RBA and BoJ delivered "opposite policy surprises" - Bullock signaled inflation risks tilted higher and further hikes ahead, while the BoJ's rate hike was seen by markets as insufficient, triggering the yen's "worst week since Oct 2025." This directly time-aligns with AUD/JPY's 5-day gain of 1.87% and the 1-day pop of 0.60%, with AUD explicitly flagged as strongest and JPY as weakest in the majors that day. The move, while not a range breakout, is a genuine catalyst-driven repricing of relative central bank paths rather than pure technical drift, though the 20-day decline of -2.27% suggests some technical mean-reversion is also occurring within the broader up-trend.

AI classification of what's driving the move — not investment advice.