Brent crude pulled back sharply from near $120 to around $105 on March 30 after signals emerged of a potential Iran-US ceasefire framework ahead of the April 6 deadline — but with the Strait of Hormuz still effectively closed and Iran rejecting the US 15-point plan, the relief rally looks fragile and our short EUR/AUD and short CHF/JPY trades benefit from any re-escalation. The BoJ's Summary of Opinions released Monday revealed one board member calling for a rate hike "without hesitation" and another floating a larger-than-25bp move to address the Iran-driven inflation shock, pushing April hike pricing to 69% and reinforcing our short USD/JPY, EUR/JPY, and CHF/JPY positions. Japan's currency chief Atsushi Mimura warned that "bold action" may be needed on the yen, with USD/JPY pressing against the 160 intervention ceiling — a level that caps upside and creates the asymmetric setup at the core of our JPY cross shorts.
The BoJ is the only G10 central bank actively debating the size of its next hike — and that distinction is worth more than the 288bp carry it costs to bet on it.
Three themes driving G10 FX
- Trilateral tightening vs. frozen majority — The RBA (hiking toward 4.85%), BoJ (normalising to 1.00%), and MAS (tightening in April) are the only three central banks moving, creating structural demand for AUD, JPY, and SGD against the paralysed EUR, GBP, and NZD.
- Energy shock as a currency sorter — The Iran war's terms-of-trade impact is violently asymmetric: Australia and Canada collect the windfall, the eurozone and New Zealand absorb the cost, and this divergence compounds with every week Hormuz stays closed.
- Positioning powder keg — EUR longs at the 95th percentile, AUD longs at the 95th, and GBP shorts at the 87th mean any catalyst — ceasefire or escalation — triggers outsized moves in the crowded direction first.
Our top 3 trades
|
Short USD/JPY BoJ April hike at 69% meets MoF intervention ceiling at 160 — upside is capped, downside is open. Carry: +288bp (headwind — paying the rate differential) |
|
Short EUR/AUD The widest ECB-RBA spread in history at −210bp is still widening as the RBA hikes into energy tailwinds. Carry: +210bp (tailwind — earning the rate differential) |
|
Short EUR/JPY EUR longs at the 95th percentile versus an imminent BoJ hike — bilateral positioning unwind is the catalyst. Carry: +125bp (headwind — paying the rate differential) |
On our radar
| Apr 1 | Tankan Q1 + Eurozone Flash HICP | Affects: USD/JPY, EUR/JPY, EUR/AUD |
| Apr 6 | Iran-US Strike Pause Expiry | Affects: all three trades |
| Apr 27-28 | BoJ MPM + Outlook Report | Affects: USD/JPY, EUR/JPY |
| Apr 29 | Q1 Australian CPI | Affects: EUR/AUD |
The April 6 Iran deadline carries the highest asymmetry — failure to extend the pause re-prices risk across all 31 pairs simultaneously, and consensus already leans 70-80% toward failure, meaning the tail risk is a surprise deal that would trigger violent reversals in safe-haven longs.
Carry snapshot
The carry regime is decisively broken. Of our top three trades, only short EUR/AUD earns carry (+210bp annualised as a tailwind); the other two fight it, with USD/JPY costing 288bp and EUR/JPY costing 125bp. With VIX at 25-31 and carry strategies producing negative Sharpe above 25, this is a regime where directional conviction must overwhelm yield — and our positioning reflects that.
Full analysis with all pair rankings, carry landscape, risk dashboard, and catalyst calendar available for Edge and Dossier members.