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USD/JPY 4-hour chart showing the drop from 163.50 and recovery to 159

USD/JPY Forecast: Yen Steadies Near 159 After Rare Joint Intervention

By Saqib Iqbal2 min read
  • USD/JPY trades near 159.09, down around 0.14%, after a violent early-August repricing.
  • A rare joint Japan-US intervention on 3 August cut the pair from roughly 163.50 to 156.90 in a matter of sessions.
  • The 159.70-160.35 band is now the resistance that decides whether the intervention gains hold.

Fundamental Analysis: USD/JPY

Japan's policy setting has changed materially in 2026. The Bank of Japan raised its policy rate to 1% in June, the highest level since 1995, then held in late July while warning that core inflation is running above the 2% target. That combination marks a genuine departure from the decade of ultra-loose settings that underpinned the yen carry trade.

The bigger shock came on 3 August, when Japan and the United States confirmed a rare joint intervention to support the yen. The move worked in the short term, but officials have since acknowledged that its impact fades without follow-through, and mid-August reporting indicated Tokyo favours a faster pace of rate increases to do the heavy lifting instead.

The dollar side remains supportive for the pair: the Federal Reserve is on hold at 3.50%-3.75% with three members pushing for a hike. The interest rate differential still favours the dollar, which is why USD/JPY has recovered a large share of the intervention drop. What has changed is the risk profile. Traders now have to price in an authority that has demonstrated both the willingness and the coordination to act.

Technical Analysis: USD/JPY

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The 4-hour chart is dominated by the near-vertical decline from the 163.50 area into a 156.90 low, followed by a measured, low-volatility recovery that has retraced roughly a third of the move. Price is now compressed just under a cluster of flattening averages at 159.17, 159.73 and 160.35.

Resistance is layered: 159.73 first, then 160.35, and only a sustained push above that would reopen the 162 shelf. Support sits at 158.00, with the 156.90 intervention low as the structural floor. A 4-hour close beneath 156.90 would confirm that policy, rather than the rate differential, is now setting the trend.

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