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Dollar Barely Moves on PCE as Aussie Rallies and Brent Unwinds War Premium

Three separate reactions to three separate catalysts: PCE confirms Fed pricing, Australian CPI reopens the RBA hike debate, and Hormuz diplomacy pulls Brent’s war premium out

Today’s themes:

  • Dollar: barely moved on July PCE, which landed almost exactly at consensus (core 0.2% m/m, 3.3% y/y), confirming existing Fed pricing, around 63% odds of a September hold, near 70% odds of at least one hike by year-end, rather than changing it. Attention now shifts to Fed Chair Warsh’s Friday Jackson Hole remarks.
  • Aussie: strongest major currency, as July CPI’s headline cooling to 3.5% y/y masked a sticky RBA Trimmed Mean CPI, which held at 3.6% y/y and accelerated to 0.5% m/m, keeping a September RBA hike credible again.
  • Brent: fell below $86 after Iran and Oman issued a joint statement on a proposed temporary Hormuz navigational corridor and mine-clearing project, even though physical tanker traffic remains severely depressed.

Why it matters: The three reactions form a clear hierarchy of impact: PCE didn’t move Dollar, Australian CPI did move Aussie, and diplomacy is moving oil even more. That shows today’s market is responding to three genuinely separate catalysts rather than one unifying theme.

PCE Confirms Fed Pricing Rather Than Changing It

Dollar was mixed in early US trading after July PCE inflation landed almost exactly where markets expected, leaving little reason for a broad repricing. Core PCE rose 0.2% m/m and 3.3% y/y, both matching consensus, while headline inflation was only slightly firmer than forecast. Personal income and spending also beat expectations, but not by enough to reopen the Fed debate. Dollar strengthened modestly against Sterling and Swiss Franc, held broadly steady against Euro and Yen, and remained weak against a much stronger Aussie.

Fed funds futures continue to show around 63% probability of a September hold, while odds of at least one hike by year-end stand near 70%. PCE therefore confirmed rather than changed existing policy expectations. Attention now shifts to Fed Chair Kevin Warsh at Jackson Hole on Friday, where remarks on inflation, Fed independence and the Treasury-Fed relationship have greater potential to move Dollar and cross-asset markets than Wednesday’s largely in-line data.

Wednesday’s Currency Performance

  • Ranking: AUD > JPY > USD > EUR > GBP > CAD > NZD > CHF.
  • Core PCE: 0.2% m/m, 3.3% y/y, both matching consensus.
  • September hold probability: around 63%.
  • At least one hike by year-end: near 70% odds.

Aussie Rallies as September RBA Hike Becomes Credible Again

Australian Dollar has a much clearer domestic catalyst. July CPI slowed from 3.8% to 3.5% y/y, but still exceeded the 3.2% consensus. More importantly, RBA’s preferred Trimmed Mean CPI stayed at 3.6%, against expectations for mild easing, while the monthly trimmed mean accelerated to 0.5%. Services inflation also strengthened, leaving a stickier domestic inflation signal beneath the softer headline rate.

That matters because August RBA minutes explicitly discussed pre-emptive tightening if upside inflation risks began to crystallize. July CPI is also the final monthly inflation report available before the Sept. 28-29 meeting, with the next CPI release arriving Sept. 30. Some analysts now put the chance of a September hike at around 30-40%, while still expecting the Board may prefer to wait for GDP and fresh labour-market data. Others see another hike before year-end as highly likely, while a more dovish camp still expects no further tightening. Aussie strength reflects that reopened debate: September is not settled, but it is credible again.

Brent Slides Below $86 as Diplomacy Becomes More Concrete

Oil is making a much more decisive move. Brent extended its decline below $86 after Iran and Oman issued a joint statement describing a proposed temporary navigational corridor through the Strait of Hormuz and a joint project to clear mines, with technical negotiations continuing toward a more permanent arrangement. Unlike earlier mediation headlines, this gives markets a specific mechanism through which shipping conditions could eventually improve.

Crucially, physical disruption has not disappeared. Preliminary Kpler data showed only five commodity vessels passing through Hormuz on Tuesday, well below the already-depressed 10-day average of 15. Brent is therefore falling not because tanker traffic has normalized, but because markets are pricing a more credible route toward future normalization. In other words, the war premium is shrinking even while current physical disruption remains severe.

Hormuz Traffic vs. Brent’s Reaction

  • Tuesday’s crossings: five commodity vessels.
  • 10-day average: already-depressed 15 vessels.
  • New development: Iran-Oman joint statement on a temporary navigational corridor and mine-clearing project.
  • Market read: pricing a credible path to normalization, not normalization itself.

China Still Limits the Sanctions Campaign

US sanctions are reinforcing that repricing from another direction. Washington has so far stopped short of imposing secondary sanctions on major Chinese financial institutions facilitating Iranian trade. Treasury Secretary Scott Bessent defended that restraint by asking, “why would I want to blow up the global financial system,” describing the current approach as a cure period before potentially tougher action.

That leaves the sanctions campaign below its maximum-pressure potential while China, buyer of roughly 90% of Iranian oil exports, remains the central enforcement constraint. Beijing has warned it will defend its interests if pressure intensifies. Combined with firmer diplomacy around Hormuz, that is pulling geopolitical premium out of Brent even though underlying supply flows are still constrained.

Three Speeds, One Session

For now, the market hierarchy is unusually clear. PCE did not move Dollar, Australian CPI did move Aussie, and diplomacy is moving oil even more. FX markets are largely waiting for Warsh; Brent is already repricing what a less escalatory Middle East path could look like.

Related Coverage

Fed & Inflation Deep Dives

Currency & RBA Deep Dives

Frequently Asked Questions

Q: Why didn’t Dollar react to July PCE inflation?

A: Because the data landed almost exactly where markets expected, core PCE matched consensus at 0.2% m/m and 3.3% y/y, so it confirmed existing Fed pricing rather than forcing a repricing. With September hold odds already around 63% and year-end hike odds near 70% before the release, there was little new information to trade on. Markets are instead looking ahead to Fed Chair Warsh’s Friday Jackson Hole remarks as the more likely catalyst.

Q: Why is Aussie rallying if Australia’s headline CPI actually eased?

A: Because the RBA looks past the headline number to its preferred Trimmed Mean measure, which held at 3.6% y/y and accelerated to 0.5% m/m against expectations for mild easing. Combined with August minutes that explicitly discussed pre-emptive tightening, that stickier underlying signal reopened the September hike debate, even though estimates still range widely, from 30-40% odds by some to “highly likely” by others.

Q: Why is Brent falling if Hormuz shipping traffic hasn’t actually recovered?

A: Because markets are pricing progress toward a resolution, not the resolution itself. Only five vessels crossed the Strait on Tuesday against an already-depressed 10-day average of 15, so physical disruption remains severe. But the Iran-Oman joint statement on a temporary navigational corridor and mine-clearing project is the first concrete mechanism offered in mediation efforts so far, which is enough to pull war premium out of the price even without an actual improvement in tanker flows yet.

Key Takeaways

  1. PCE confirmed Fed pricing rather than changing it: Core PCE matched consensus at 0.2% m/m and 3.3% y/y, leaving September hold odds near 63% and year-end hike odds near 70% largely unchanged.
  2. Attention shifts to Fed Chair Warsh’s Friday Jackson Hole remarks: Seen as having more potential to move Dollar than Wednesday’s in-line data.
  3. Australia’s sticky Trimmed Mean CPI reopened the September RBA hike debate: It held at 3.6% y/y and accelerated to 0.5% m/m even as headline CPI eased to 3.5%.
  4. Estimates on a September RBA hike vary widely: From 30-40% by some analysts to “highly likely” by others, reflecting a genuinely unsettled, reopened debate.
  5. Brent fell below $86 on a concrete Hormuz diplomatic proposal: Iran and Oman’s joint statement on a temporary navigational corridor and mine-clearing project is the first specific mechanism offered so far.
  6. Physical disruption hasn’t actually improved: Only five vessels crossed Hormuz Tuesday versus an already-depressed 10-day average of 15, Brent is pricing a credible path to normalization, not normalization itself.
  7. China remains the central constraint on sanctions enforcement: Bessent explicitly framed restraint around not wanting to “blow up the global financial system,” while Beijing, buyer of roughly 90% of Iran’s oil exports, has warned it will defend its interests.

What to Watch Next

Fed Chair Warsh’s Friday Jackson Hole remarks are the next major Dollar catalyst, with his comments on inflation, Fed independence and the Treasury-Fed relationship carrying more weight than this week’s in-line data. For Aussie, watch for GDP and labour-market data ahead of the Sept. 28-29 RBA meeting. For oil, watch whether the Iran-Oman navigational corridor produces an actual improvement in Hormuz vessel traffic, and whether sanctions enforcement against Chinese entities tightens.

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