The US Iran deal should keep the dollar on the back foot as the conflict premium gets taken out of the price.
Takeaway by Dark Side of the Boom™
• The US-Iran deal should keep the dollar on the back foot as the conflict premium gets taken out of the price.
• Oil can keep easing as Hormuz risk cools, but sub $70 is unlikely while inventories are thin and the deal still carries break risk.
• Asia FX should get breathing room, with IDR, KRW, THB, and INR positioned to recover as the energy shock fades.
• The yen remains the outlier because the market is still heavily loaded into yen-funded carry trades ahead of the BoJ.
The Dollar War Premium Starts to Unwind
The is starting the week on softer ground because the market has been handed the one headline that can pull several risk premiums out of the tape at once. The US and Iran have reached an interim agreement to end the conflict and reopen the Strait of Hormuz, with officials from both countries expected to meet in Switzerland on 19 June to formally sign the deal. The full details are still missing, but the framework reportedly creates another sixty-day window for talks over the future of Iran’s nuclear programme. President Trump has also made clear that US strikes could resume if that clock runs out without a broader agreement.
So this is not peace with a bow tied around it. It is a ceasefire with a stopwatch.
That matters for markets because the first job is not to price a perfect outcome. The first job is to remove the most extreme disruption scenario. Traders are now watching how quickly vessels return to the Strait of Hormuz, because the speed of shipping normalization will decide how much of the oil risk premium can be released. has already moved back toward $80 per barrel as investors price a better supply outlook, but I would be careful about assuming a clean trip back below $70. Supply does not restart like flipping on a light switch. Inventories have been drawn down, logistics need to normalize, and a larger geopolitical premium should remain because the deal can still break.
For the global economy and financial markets, the agreement lowers the risk of a much more disruptive outcome. In FX, that takes away one of the key props that had supported the dollar during the conflict. The has been the clearest G10 beneficiary so far, which is logical given it was the weakest G10 currency since tensions began in late February. In Asia, the same logic applies to the currencies that were hit hardest by the energy shock and risk aversion. The Indonesian rupiah, , Thai baht, and all stand to benefit if the market keeps unwinding the conflict trade. The rupiah has already moved sharply, strengthening almost 1% against the dollar at the start of the week.
The broader dollar story is straightforward. The conflict gave the greenback a safe harbour bid and a rates support story. The deal starts to drain both. As oil falls, the inflation impulse becomes less threatening. If the inflation impulse looks less threatening, the market has less reason to price a Fed that needs to lean aggressively against the shock. That is the cleaner transmission channel for a weaker dollar. Not just less fear, but less need for the Fed to validate that fear.
The obstacle is this week’s FOMC meeting. Traders will be wary of chasing dollar weakness too aggressively before hearing from the Fed. There is a clear risk that policymakers show less support for further , remove the easing bias, and acknowledge upside inflation risks more directly. The updated Dot Plot could also show more officials leaning toward rate hikes if inflation pressure persists.
My view is that Kevin Warsh still has room to look through the energy price shock and keep rates on hold. That position looks easier to defend now that Hormuz is reopening and oil is backing away from its stress levels. The US rates market has already scaled back Fed hike expectations, but there is still room for yields and the dollar to move lower if Warsh does not deliver a hawkish surprise. The risk to that view is simple. If he says the Fed is actively considering rate hikes, the dollar gets a reprieve and the market has to rebuild part of the rates premium it has just started to remove.
The yen is where the story gets more complicated.
Lower oil prices should, in theory, help Japan. Before the Middle East conflict, was closer to 156. Now USD/JPY remains above 160 even as energy prices fall. That tells us the yen is not trading the oil impulse alone. It is trading positioning, carry, and the market’s confidence in Japan moving only gradually.
The latest IMM data shows leveraged funds have been adding to short yen positions for five straight weeks through 9 June. Those shorts have grown almost fourfold since late February and are now the largest since early July 2024. That is not a small footnote. The last time yen-funded carry trades became this crowded, the market was eventually forced into a painful unwind after the BoJ hiked in July 2024 and the Fed cut in September.
This week, the BoJ is expected to raise rates again, while another Fed rate cut looks unlikely until late this year at the earliest. Japanese media reports have already prepared the market for a 25-basis-point hike and have also suggested that the BoJ is considering pausing QE tapering from FY2027. Because the hike is already fully priced, it is unlikely to reverse yen weakness on its own. That is why the market has felt comfortable adding to yen shorts instead of cutting them.
The guidance matters more than the hike. If the BoJ sticks with a gradual tightening path and signals that another move is still likely later this year, the meeting can still disrupt the carry trade. The press conference is also a potential source of volatility because Deputy Governor Uchida will step in for Governor Ueda, who is ill. If the yen remains weak, pressure on Japan to intervene will not disappear. Intervention would also have more bite if energy prices keep falling and Fed hike expectations continue to fade.
With some political cover from the meeting with Prime Minister Takahashi, Uchida may choose to float a hawkish trial balloon. Not necessarily a policy shock, but enough to remind the market that Japan is not comfortable letting USD/JPY drift higher while speculative shorts keep piling in.
That is the key market setup.
The US-Iran agreement should weaken the dollar because it removes part of the conflict premium, cools the oil shock, and gives the Fed more room to stay patient. Asian currencies should catch a bid as the energy pressure valve opens. But the yen remains the pressure point because positioning has become stretched, the carry trade is crowded, and the BoJ still has a chance to lean against weakness through guidance.
The market has shifted from a war premium to a policy premium. That usually means the next phase is not about the headline itself, but about who is still trapped in the wrong trade after the headline changes.
