📊 Iran Tensions Escalate — Safe-Haven Dollar Buying and the Battle for 160 in Focus

📊 Iran Tensions Escalate — Safe-Haven Dollar Buying and the Battle for 160 in Focus

23 3月 2026, 10:13
Masayuki Sakamoto
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📊 Iran Tensions Escalate — Safe-Haven Dollar Buying and the Battle for 160 in Focus

■ Market Overview

Today’s FX market is being driven by heightened tensions surrounding Iran.

U.S. President Donald Trump stated:

👉 “Full reopening of the Strait of Hormuz must occur within 48 hours”

He also hinted at potential military action against Iran if the demand is not met.


As a result, markets are increasingly pricing in:

  • Renewed geopolitical risk
  • Stronger safe-haven demand for the U.S. dollar

The deadline is approaching by tomorrow morning (Japan time), making headline risk the key driver in the near term.


■ FX Developments

USD/JPY

The uptrend remains intact, but upside momentum is limited.

  • High: 159.66
  • Current: around 159.40

👉 Strong selling pressure emerges just below 160

Recent volatility remains elevated:

  • Last week: 159.90 → 157.50 sharp swing

EUR/USD

  • Trading in the low 1.15 range

After the post-ECB rally faded, the pair is now:

👉 Under pressure from renewed dollar strength

Further downside remains possible.


GBP/USD

  • Around 1.3280

The pair has:

  • Broken below 1.3300 support
  • Remains weak under dollar strength

👉 Continued heavy upside resistance


Yen Crosses

Driven primarily by USD/JPY:

  • EUR/JPY: capped in the low 184s
  • GBP/JPY: pulling back from the 212s

👉 Weakness in European currencies vs USD is limiting upside


■ Market Structure

The current structure is clearly:

Middle East tensions Oil / Risk sentiment Dollar demand FX market moves

Especially:

  • Geopolitics → USD buying
  • Headlines → immediate price reaction

■ Key Focus Points
  • Developments around the Strait of Hormuz
  • Price action leading up to the 48-hour deadline
  • Potential U.S. military response

In FX markets:

  • USD/JPY vs 160 level
  • Intervention risk

■ Market Environment

Current characteristics:

  • Headline-driven market
  • Sudden short-term volatility
  • Position adjustment flows mixed in

👉 Traditional fundamentals are taking a back seat to news flow


■ Trading Perspective

This is clearly a:

👉 “Geopolitical market”

  • Core bias: USD strength
  • But: heavy resistance on the upside
  • Risk of sharp reversals

⚠️ Critical Zone: 160 (USD/JPY)

This level is particularly difficult because:

  • Profit-taking selling
  • Intervention risk
  • Psychological resistance

👉 Multiple factors converge → high uncertainty zone


■ Summary

As Iran tensions escalate, safe-haven dollar demand is re-emerging.

However:

  • The 160 barrier
  • Intervention concerns
  • Position adjustments

are preventing a clean upward trend.


📌 Current market can be summarized as:

👉 “React to headlines while respecting heavy resistance above.”

A market where:

  • Direction exists (USD bullish)
  • But execution requires caution due to asymmetric risks