Currencies April 16, 2026 05:57 AM

Citi Says Yen Could Prompt Market Intervention if BoJ Keeps Policy Unchanged

Bank of Japan inaction could push USD/JPY above key levels, prompting government steps to rein in currency moves

By Hana Yamamoto
Citi Says Yen Could Prompt Market Intervention if BoJ Keeps Policy Unchanged

Citi cautions that if the Bank of Japan maintains its existing monetary policy at the upcoming meeting, the yen may require direct government intervention. The bank warns USD/JPY could breach ¥160 per dollar, a move that would likely trigger yen-buying operations to return the pair toward roughly ¥155 per dollar. The outlook follows currency moves since the start of the Iran conflict, when the dollar initially strengthened in March before reversing in April, with the yen remaining comparatively weak.

Key Points

  • Citi projects USD/JPY could exceed ¥160 if the Bank of Japan holds policy steady.
  • Japanese government intervention to buy yen would aim to return the exchange rate to around ¥155, according to Citi.
  • Dollar strength tied to the March Iran conflict reversed in April, but the yen has not benefited from the dollar's retreat; EUR/JPY hit an all-time high during this period.

Global investment bank Citi has warned that the Japanese yen may face official intervention if the Bank of Japan elects to keep policy settings unchanged at its forthcoming monetary meeting. The warning centers on the potential for a further rise in the USD/JPY exchange rate if the BoJ maintains its current stance.

According to Citi, USD/JPY has stayed elevated through April even as the broader U.S. dollar softened after an early-March episode of strength linked to the onset of the Iran conflict. Over the same window, EUR/JPY reached a fresh all-time high, underscoring renewed pressure on the yen against multiple currencies.

Citi's scenario analysis indicates that a decision by the BoJ to leave policy unchanged could allow USD/JPY to climb beyond ¥160 per dollar. In that circumstance, the analysis says the Japanese government would likely step into foreign exchange markets to buy yen, aiming to move the exchange rate back toward about ¥155 per dollar.

The bank notes that markets initially reacted to the March onset of the Iran conflict with conventional crisis-driven dollar strength. That pattern reversed in April as the dollar weakened, yet the yen has not enjoyed appreciable gains in response to the dollar's retreat.

Citi also highlights conditions that may determine how successful government efforts to shore up the yen would be. Specifically, the bank points to the need for sound fiscal policy and credible assurances regarding the Bank of Japan's independence as factors that would influence the effectiveness of any intervention strategy.

This analysis frames a delicate policy trade-off: the BoJ's decision on monetary settings may affect the immediate trajectory of cross rates, while the government's readiness to act could shape market expectations and the longer-term path of the yen.


Key points
  • Citi warns USD/JPY could move above ¥160 if the BoJ keeps policy unchanged.
  • Japanese authorities would likely intervene to buy yen and guide the rate back toward about ¥155, per Citi.
  • Exchange-rate dynamics since March have included an initial dollar rally tied to the Iran conflict, followed by dollar weakness in April; the yen has not gained from that reversal.
Risks and uncertainties
  • Outcome depends on the BoJ's decision to change or maintain policy; monetary policy choice directly affects currency markets.
  • Effectiveness of any government intervention would hinge on fiscal policy credibility and assurances about the central bank's independence.
  • Currency-market volatility driven by geopolitical events, as seen in March, remains a source of uncertainty for exchange rates.

Risks

  • The impact of the BoJ's policy decision on currency markets creates uncertainty for exporters, importers, and financial markets tied to the yen.
  • Intervention effectiveness depends on sound fiscal policy and credible assurances of BoJ independence, per Citi.
  • Geopolitical-driven moves in the dollar, such as those linked to the Iran conflict, could reintroduce volatility in exchange rates.

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