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The FX Trader: A fragile Iran war ceasefire sees robust USD sell-off.

Forex 4 minutes to read
Picture of John Hardy
John J. Hardy

Global Head of Macro Strategy

Summary:  The US stepped away from its maximalist demands and Iran put forward a set of its own demands in what is being described as a cease-fire, if a rather fragile one. The market reaction has been robust and the US dollar has broken lower, but headline risks remain here, even if the USD bearish case is more compelling again.


The latest

Risk sentiment surged and the US dollar weakened sharply in early Asian hours Wednesday after President Trump announced a two-week ceasefire to negotiate terms with Iran, just hours after maximalist threats against Iranian infrastructure and even its entire civilization. The currencies benefitting the most were the most classically pro-cyclical, including the Swedish krone and the Australian dollar.

It is difficult to determine the quality of the ceasefire, which appears fragile for now, but the scale of the market reaction suggests that the market believes that Trump is desperate to extract the US from this conflict. Importantly, while Trump declared that the cease-fire is contingent on Iran “re-opening” the Strait of Hormuz, some Iranian sources have claimed that it will only allow 10-20 ships to proceed through the Strait daily (normal pre-conflict traffic levels were well over 100 per day) and only on the condition that tolls are collected. In any case, traffic through the strait continues to run at very low levels. Traffic normalization through the strait is a pre-requisite for avoiding extensive further damage to the global economy, cease-fire or no cease-fire.

So where do we go from here? The unfortunate fact of life remains that headline risk is extremely pronounced. Either side could declare that the terms of the cease-fire are being violated and renew hostilities could resume that prompt the other side to escalate. But with a US president so clearly motivated to see oil- and stock prices normalize further, Iran may play along for at least this two-week negotiation window.

The loudest signal is USD weakness, with EURUSD breaking above the recent range highs  - see below. Risk sentiment will need to continue to stabilize to see a sustained move lower in the greenback, as it wouldn’t take much of a reversal from here to throw everything back into uncertainty.

Another dramatic move was the sharp reversal in EURSEK, which briefly pumped higher through 11.00 and even 11.05 late yesterday before getting slammed all the way back below 10.80 (!) as of this writing. The Swedish krone is traditionally very sensitive to the growth outlook for Europe and NOKSEK has looked like a proxy for oil and gas prices in Europe since the conflict broke out and the huge move in that cross may have amplified SEK moves more broadly.

RBNZ with a “hawkish hold”. Not really much in RBNZ’s meeting overnight as no change was expected to the 2.25% official cash rate, but Governor Breman said that a “relatively early” rate hike was discussed if not acted on. NZ short rates fell less than short rates elsewhere and AUDNZD, after briefly spurting to a new post-2013 high north of 1.2200 in very early hours Wednesday in Asiao after the meeting, fell sharply to below 1.2100 as of this writing – a possible sign of exhaustion in the bull trend for that cross.

Chart focus: EURUSD
While risk sentiment bottomed out on the last couple of days of March, EURUSD was somewhat divergent, not testing the 1.1411 lows from earlier in the month. Now it has broken above the 1.1667 range high that was established after the initial sell-off on the breakout of the Iran war. It’s important for USD bears to hold the level above perhaps the 1.1625-50 area to keep the focus on a full reversal of the sell-off that was initiated from the 1.1800 area, which now must be re-taken to neutralize the entire sell-off sequence since the Iran war began.

08_04_2026_EURUSD
Source: Saxo

FX Board of G10 and CNH trend evolution and strength.
Note: If unfamiliar with the FX board, please see a video tutorial for understanding and using the FX Board.

The sharpest move has been the sell-off in the US dollar, which shows up most clearly in the 2-day momentum shift, with much of that shift happening today. CAD is nearly as weak as its broader direction often correlates with the US dollar and as sharply lower oil prices weigh as well. All the while, China continues to allow its currency to appreciate.

08_04_2026_FXBoard_Main

Table: NEW FX Board Trend Scoreboard for individual pairs.

The USD weakness is doing nothing for the JPY today as many JPY crosses rally to local highs despite the USDJPY sell-off. This will see AUDJPY and GBPJPY flip to positive “trends” at the end of the day today (indicated by the dark red shading in the table below, which shows that the trend is set to flip at the current Quote price indicated) if a new sell-off/JPY rally doesn’t materialize by the close today.

08_04_2026_FXBoard_Individuals
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