Intervention Risk Persists, 157 Yen Becomes the Battleground | Oil Surge Rekindles Yen Weakness Pressure

Intervention Risk Persists, 157 Yen Becomes the Battleground | Oil Surge Rekindles Yen Weakness Pressure


■ Market Overview

At the start of the week, USD/JPY showed sharp volatility:

  • 157.20 → 155.72 rapid drop
  • Followed by a quick rebound to the high 156s

→ Similar to last week, price action strongly suggests intervention awareness

Authorities continue to state they are
“closely monitoring speculative moves”

→ The market is now fully in caution mode


■ FX Movement

  • USD/JPY: fluctuating between 155–157
  • Sharp intraday swings

→ A highly binary range-driven market


■ Core Market Structure

“Yen depreciation pressure vs intervention”

Yen-weakening factors:

  • Rising oil prices (WTI around $106)
  • Middle East tensions (Hormuz Strait risk)
  • US-Japan rate differential

Yen-strengthening factors:

  • Direct FX intervention
  • Strong verbal warnings from authorities

→ Rallies get capped, dips get bought


■ Middle East & Oil

  • Iran maintains a hardline stance
  • Reports of attacks on US vessels

→ WTI surged toward $107

→ Further intensifying yen depreciation pressure


■ Key Focus (Critical)

  • Authorities’ reaction around 157 level
  • Oil price sustainability above $100
  • Hormuz Strait developments

→ These are now the primary market drivers


■ Scenarios

① Oil continues rising

→ Strong yen weakness pressure
→ Retest and possible break above 157

② Intervention resumes

→ Sharp drop (potentially below 155)

③ Range persists (most likely)

→ 155–157 consolidation


■ Strategy Points

  • Trend-following is risky
  • Trade with a range assumption
  • Always prepare for sudden volatility

■ Summary

The current market is:

“Real demand-driven yen selling vs policy-driven yen buying”

  • Even with rising oil, upside is capped
  • Even after intervention, rebounds occur

→ The most critical factors are:
the 157 level and oil price dynamics

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