GBP/JPY rose for a sixth straight day on Monday, trading near 214.87, its highest level since 4 February. The move followed further weakness in the Yen as oil prices stayed high.
Higher crude prices have raised concerns about Japan’s trade balance because the country relies on imported energy. Tensions in the Middle East have kept supply risks in focus.
Oil Driven Yen Weakness
US President Donald Trump ordered a naval blockade targeting Iranian ports after US-Iran talks ended without a breakthrough. This increased worries about longer-lasting disruption to oil supplies.
Japan is more exposed to energy supply shocks than the UK because a large share of its imports comes from the Middle East. Higher import costs can weigh on growth and raise inflation.
BoJ Governor Kazuo Ueda said the economy and prices are broadly in line with forecasts and that underlying inflation is moving towards the bank’s target. He said inflation risks are two-sided and that a sustained rise in inflation expectations linked to geopolitical tensions could lift underlying inflation.
In the UK, higher energy costs could add to ongoing inflation pressures and complicate a return to the 2% target, limiting room for rate cuts. GBP/JPY has also been supported by the UK-Japan interest rate gap, while USD/JPY near 160.00 remains a level linked to past Japanese intervention.
Rate Differentials And Intervention Risk
The continued rally in GBP/JPY, now at a multi-month high near 214.87, is being directly fueled by surging oil prices. With Brent crude spiking over 12% in the last month to trade above $115 a barrel, the Japanese Yen is weakening far more than the Pound. This is because Japan imports over 90% of its primary energy, making its economy exceptionally vulnerable to the current supply shocks from the Middle East.
The new naval blockade targeting Iranian ports is the clear catalyst for the sustained pressure on the Yen. This development reinforces the market’s tendency to sell the Yen during energy crises, a pattern we also observed during previous supply scares in late 2025. This geopolitical tension creates a clear trading theme that is likely to persist in the coming weeks.
Despite Japan’s latest core inflation reading of 2.5%, the Bank of Japan will likely remain cautious. Governor Ueda’s comments suggest a fear that these high energy costs will damage consumer demand, preventing any aggressive interest rate hikes from the current 0.10% level. This policy inaction keeps the Yen unattractive for traders seeking higher returns.
In the UK, the situation is the opposite, as sticky core inflation was recently reported at 3.8%. This makes it nearly impossible for the Bank of England to consider cutting its 5.25% interest rate, and in fact, keeps pressure on for rates to remain high. The interest rate gap between the UK and Japan is therefore set to widen, providing strong underlying support for GBP/JPY.
Given this fundamental backdrop, we should consider strategies that profit from a continued rise in GBP/JPY. Buying call options with a strike price around 216.00 for the coming weeks offers a way to capture further upside while defining our maximum risk. The underlying positive carry on the trade continues to attract large capital flows, which should support the cross.
However, we must remain vigilant about the risk of government intervention, as USD/JPY approaches the critical 160.00 level. Looking back, we know Japanese authorities intervened heavily to support the Yen in both 2022 and 2024 when the currency weakened past similar psychological thresholds. Traders holding long positions should therefore consider buying out-of-the-money put options to hedge against a sudden and sharp reversal.
