USD/JPY Volatility Aftermath Continues | Battle Around the 157 Level Under Intervention Risk

1 5月 2026, 11:15
Masayuki Sakamoto
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USD/JPY Volatility Aftermath Continues | Battle Around the 157 Level Under Intervention Risk

■ Overview

Yesterday, USD/JPY saw a historic move:

  • 160.72 → 155.57 (over 5 yen drop)
    → Triggered by strong verbal intervention from Japanese authorities

Today:

  • Rebounded to the low 157 range and holding firm

👉 The market is now clearly:

“Waiting for the next move from authorities”

■ FX Moves

  • USD/JPY: recovered from 155 → 157 range
  • US Dollar Index: volatile, then back near 98

👉 This is not a USD-driven market

👉 It is a USD/JPY-driven market


■ Core Market Structure

“Intervention risk dominates everything”
  • When price rises → intervention fear caps upside
  • When price falls → dip buying emerges

👉 Result:

No sustained directional trend


■ Key Levels

  • 50% retracement: 158.15
    → Important reference level
  • 160.00
    → Strongest intervention warning zone

👉 This area is extremely sensitive


■ Key Drivers Ahead

  • Timing of the next move by Japanese authorities
  • Oil prices (Middle East influence)
  • Thin liquidity (Labor Day period)

👉 Combination:

Low liquidity × intervention risk = high volatility

■ Scenarios

① Move toward 158

→ Verbal or actual intervention risk increases
→ Upside capped


② Renewed JPY weakness

→ Retest of 160
→ High probability of intervention


③ Range continuation (most likely)

→ 156 – 158 range


■ Key Event Today

  • ISM Manufacturing PMI
    → Forecast: 53.2

👉 However:

The real driver remains USD/JPY itself

■ Strategy

  • Avoid large positions
  • Respect key levels (158 / 160)
  • Focus on short-term trading

■ Conclusion

This is now:

“A market driven by authorities, not fundamentals”
  • If it rises → it gets capped
  • If it falls → it rebounds

👉 The most important edge now is:

Identifying intervention zones — not predicting trends