AUD/USD Forecast This Week — Outlook, Drivers & Key Levels

Where Things Stand

AUD/USD sits at 0.7026 after a 0.22% gain — a quiet move higher without aggressive momentum. aussie dollar is consolidating, with price compressing into a narrower range as the market builds energy for its next move.

Market consensus is heavily positioned for a September 29 RBA hike (75-94% probability with all seven major banks forecasting 25bp to 4.60%), but the AUD has weakened into the decision down -1.47% on the week to 0.7026, suggesting a 'buy the rumor, sell the fact' dynamic where the bullish catalyst is fully priced and the asymmetric risk favors AUD downside

What's Driving Price

Primary driver: RBA September 29 rate decision dominates all analysis with 75-94% probability of a 25bp hike to 4.60% — but the AUD has already sold off -1.47% in the past week and -2% over the past month, consistent with a 'buy the rumor, sell the fact' dynamic where the heavily-priced hike limits further upside while a hold would trigger significant downside

Secondary factor: COT speculative shorts increased by -7,908 contracts to -46,814 as of Sep 22 (55.7th percentile 3-year), accelerating bearish positioning ahead of the RBA decision — shorts are positioned WITH the recent price decline, reducing squeeze risk from the level seen in prior weeks, but creating asymmetric risk of a short-covering rally if the RBA delivers a hawkish hike with guidance for further tightening

Additional influence: Australian inflation data on Sep 30 (one day after the RBA decision) represents a second binary catalyst — CPI YoY est 4.1% vs prev 3.5%, Trimmed Mean CPI YoY est 3.7% vs 3.6% — a hot print would validate the RBA's tightening stance and potentially extend any post-hike AUD rally, while a cool print would suggest peak hawkishness has passed and validate the recent selloff

Economic backdrop: RISK-ON macro regime with VIX at 16.34 below the 20 fear threshold, US Treasury 10Y at 5.17% (+16bp on the week), US 2Y at 4.81%, curve positively sloped (2s10s +36bp), Fed on hold at 3.63%, RBA expected to hike 25bp to 4.60% on Sep 29 creating AUD-supportive policy divergence that is already 75-94% priced

Fundamental assessment: AUD appears modestly overvalued based on PPP, with structural headwinds from declining terms of trade (111.9 from 117 QoQ) and widening current account deficit (-$27.2B), partially offset by RBA's hawkish stance versus Fed at 3.63% but the RBA tightening narrative is now heavily priced at 75-94% probability

Chart Assessment

Price at 0.7026 trading below both 50-day SMA (~0.7115) and 200-day SMA (~0.7069), with RSI at 33.57 indicating bearish momentum approaching oversold territory — immediate support at the psychological 0.7000 round number and major support at 0.6900, with no clear reversal pattern established

With trend strength at 4/10, the directional signal is present but far from decisive.

Risk & Opportunity

Primary risk: RBA delivers a hold at the September 29 meeting despite 75-94% market probability for a hike, triggering a sharp AUD sell-off as the policy divergence premium deflates — the -1.47% weekly decline into the decision already reflects pre-positioning for disappointment and the 0.7000 psychological support would likely break toward 0.6900 (Probability: medium)

Primary opportunity: RBA delivers a hawkish 25bp hike with forward guidance signaling further tightening ahead (potentially to 4.85% by year-end as ANZ forecasts), triggering a short-covering rally from -46,814 net speculative shorts that pushes AUD back toward 0.7075 resistance and potentially 0.7200 over the following week (Timeframe: 24-72 hours after the RBA decision on Sep 29, contingent on a hike with hawkish forward guidance, followed by Australian inflation data on Sep 30 that confirms persistent price pressures)

This week's edge: Below Min Signal threshold — NO CALL. The weighted signal of -0.34 falls well below the FX_MAJOR threshold of 1.1, mandating NO CALL per Rule 2. The key structural divergence the desk identifies is between the market's near-certain RBA September hike pricing (75-94% probability with all seven major banks forecasting a hike) and the AUD's price action which has weakened substantially (-1.47% weekly, -2% monthly) into what should be a bullish catalyst. This suggests the market is efficiently pricing that the hike is fully discounted and the asymmetric risk favors a 'sell the news' outcome, but this recognition alone does not cross the Min Signal threshold for a directional call. The desk acknowledges that the combination of deteriorating fundamentals (declining terms of trade, current account deficit at -$27.2B, AUD down -2% monthly), accelerating bearish COT positioning (-46,814 net shorts, +7,908 contracts this week), and the heavily-priced RBA catalyst creates a structural bearish lean, but the proximity to a binary event (RBA Sep 29) with genuine two-way outcomes prevents directional conviction above the threshold.

Volatility Backdrop

AUDUSD volatility at the 42th percentile reflects a balanced environment where standard risk parameters apply. Volatility remains anchored at current levels, with no clear signal of an imminent regime shift in either direction.

Normal volatility at 42nd percentile with 20-day realised vol at 6.6% annualised suggesting 45-65bp daily ranges — stable but uninformative environment until the binary RBA catalyst resolves; breakout above 0.7075 or breakdown below 0.7000 needs sustained follow-through from the RBA decision and Australian CPI data

The Week Ahead

RBA Interest Rate Decision (Sep) — market pricing 75-94% probability of a 25bp hike to 4.60%, all seven major banks forecasting a hike, but the AUD has weakened into the decision suggesting the hike is fully priced and any hold would trigger an aggressive selloff on Tuesday 29 September is a high-impact catalyst with the potential to redefine the near-term outlook entirely.

How AUD/USD navigates the confluence of consolidating conditions and incoming data will determine whether the current directional thesis holds or breaks.