AUD/USD Faces 0.70 Breakdown If US Core CPI Tops 3%

AUD/USD is sitting on the edge of a cliff, and US inflation data may determine whether it falls.

Global markets have struggled to regain their footing after last week’s selloff. Attempts to revive the AI trade have faded quickly, while concerns over persistent inflation and renewed US-Iran tensions continue to weigh on sentiment. The combination has created a fragile environment where investors are increasingly focused on one question: is inflation becoming a bigger problem again in the US?

Today’s CPI report could provide the answer. Markets already expect headline inflation to jump from 3.8% to 4.2%, with core CPI rising from 2.8% to 2.9%. But the number that matters most may be 3%. If core inflation pushes above that threshold, investors could be forced to seriously consider the possibility that Fed would return tightening. Following last week’s strong payrolls report, policymakers have little reason to worry about labor-market weakness. Inflation is now the main story.

That matters because the market’s triple threat remains fully intact. AI valuation concerns continue to hang over equities. The Middle East conflict continues to threaten energy markets and inflation. And stronger inflation would reinforce higher-for-longer interest-rate expectations. Together, these forces create a difficult environment for risk-sensitive currencies.

Australian Dollar sits near the center of that storm. Traditionally, Aussie struggles when risk appetite deteriorates and Dollar strengthens. But the currency faces an additional challenge this time. Earlier this year, investors aggressively priced further RBA tightening as inflation remained stubbornly high. That narrative is now being reassessed.

The RBA has already delivered three consecutive rate hikes, taking the cash rate to 4.35%. Yet recent economic data have become noticeably softer. Employment indicators have weakened, consumer spending has lost momentum, and confidence measures remain subdued. While another hike later this year cannot be ruled out, the market is becoming increasingly skeptical that policymakers will need to do much more.

That shift is already visible. Major Australian banks including CBA and NAB now believe the tightening cycle is over, expecting rates to remain at 4.35% through the end of next year. This repricing has removed an important source of support for Aussie.

The problem is not that RBA has become dovish. Rather, markets previously expected far more tightening than now appears likely. As those expectations unwind, Australian Dollar has struggled to maintain upward momentum.

Technically, AUD/USD’s fall from 0.7277 resumed after brief consolidations and intraday bias is back on the downside. Immediate focus is now on 100% projection of 0.7277 to 0.7076 from 0.7200 at 0.6999. Firm break there could prompt downside acceleration and target 161.8% projection at 0.6875, or even further to 0.6832 structural support before finding a bottom.

The market is already nervous. A hotter inflation reading could be the catalyst that turns caution into outright risk aversion—and AUD/USD into one of its clearest casualties.