BrokerTH
The draft memorandum of understanding between the US and Iran, reported June 12, may be the single most important thing to happen to Thai markets in months. It signals a near end to a war that ran more than four months, points to the Strait of Hormuz reopening, and sent oil prices sharply lower. USD/THB sat at 32.85 on June 13 after ranging 32.66-33.00 on the week. If the peace holds, the entire macro chain that weakened the baht starts to unwind.
Why a Middle East deal moves the baht
The war pushed oil up, oil fed inflation, inflation kept the Fed on hold near 3.5-3.75%, and the wide US-Thailand rate gap pulled capital out of the baht. A credible peace reverses each link:
- Oil falls as Hormuz supply fears ease, cutting Thailand’s import bill and narrowing the current-account drag on the baht
- Lower oil cools the inflation that kept the Fed hawkish, opening room for eventual cuts
- Risk-on flows return to emerging markets, including Thai assets, supporting the baht at the margin
That’s why the SET jumped 1.3% on the news while the baht firmed. Markets are pricing the chain running in reverse.
What’s actually confirmed vs. hoped
A draft MOU is not a signed peace. The market reaction assumes the deal gets finalized and Hormuz reopens cleanly. If talks stall or the ceasefire breaks, oil snaps back and the baht weakens again fast. So treat 32.85 as a level that could move sharply in either direction on headlines over the next two weeks.
What this means for Thai traders
- If the deal holds: USD/THB likely drifts lower toward 32.20-32.40 as oil and dollar strength fade together. The months-long baht weakness reverses
- If it collapses: oil spikes, USD/THB retests 33.00+ quickly
- The Fed June 16-17 meeting lands right in the middle — a dovish read plus a holding peace deal is the strongest baht-positive combination of 2026
For Thai businesses with dollar exposure
Exporters who hedged dollar receivables at 33 are now watching the rate move against those hedges — that’s the cost of certainty, and it was the right call when the war was escalating. Importers paying in dollars get relief if the baht firms. For new exposure, the asymmetry has shifted: with a peace deal in play, locking dollars at 32.85 is less obviously the right move than it was at 33 two weeks ago. Wait for the Fed and the MOU outcome before committing large hedges.
What to watch
- Whether the MOU gets signed or stalls — the binary that drives everything
- Brent crude direction — the cleanest real-time gauge of whether peace is being priced
- The Fed June 16-17 decision and Warsh’s tone on cuts
- Foreign equity flows into SET — sustained inflows confirm the risk-on rotation
The takeaway
The US-Iran draft MOU is the first real chance in months for the baht to strengthen rather than grind weaker. The chain that pressured THB all year — war, oil, inflation, hawkish Fed — can reverse if the deal holds. But a draft is not a signature. Don’t over-commit dollar hedges into a binary headline event; wait for the Fed meeting and the MOU outcome, both due within two weeks, before making large FX moves.
