Rising oil and natural gas prices have highlighted Europe's underlying fragility: when energy costs surge, the region's trade balance deteriorates, and its currency often reflects this strain through depreciation. This week, the euro fell approximately 2% against the U.S. dollar as oil prices surged more than 15% and natural gas prices briefly doubled amid escalating conflict in the Middle East. Europe's heavy reliance on imported energy means that commodity price increases hit its economic growth and purchasing power more directly compared to the United States, the world's largest oil producer. This dynamic previously drove the euro below parity with the dollar during the 2022 energy crisis.

According to Chris Turner, Head of Foreign Exchange Strategy at ING Bank, the duration of the energy shock matters far more for the euro than a general flight to safe-haven assets. He noted that the persistence of the shock will determine whether the euro falls toward the $1.10–$1.12 range or finds support near $1.15. Strategists at Barclays, including Themistoklis Fiotakis and his team, pointed out that market reactions following the outbreak of the Russia-Ukraine war in 2022 underscored the euro's sensitivity to energy disruptions. Historical patterns suggest that a 10% rise in oil prices typically leads to a 0.5% to 1% appreciation of the U.S. dollar, while a similar move in natural gas prices causes the euro to drop by about 0.25%. They added that this week’s moves fit entirely within that range, making euro purchases at this stage a risky bet that would require high confidence in de-escalation.

The future direction of currency markets will likely depend on how the conflict evolves. For Goldman Sachs analysts, a key question is whether investors will stop hedging against extreme outcomes, even as rising energy prices harm economies by fueling inflation and slowing growth. Strategists including Stuart Jenkins wrote that any clear signal that markets are distinguishing between geopolitical risk shocks and pure energy shocks will become a critical differentiator in foreign exchange performance. Asian currencies face additional vulnerability due to the region’s dependence on fuel shipments passing through the Strait of Hormuz, which has been effectively blocked by the conflict. The U.S. dollar index rose 1.4% this week, on track for its largest weekly gain since November 2024. Meanwhile, a comparable index tracking Asian currencies fell 0.9%.

Another factor influencing exchange rates is how energy-driven inflation alters interest rate expectations. Goldman Sachs noted that the most significant currency moves have occurred in countries where central banks are expected to cut rates this year—particularly the Bank of England—which helps explain the British pound’s rise against the euro this week. In contrast, short-term bond yields in Japan, Australia, and New Zealand—where rate hikes were previously anticipated—have seen milder fluctuations. This uneven impact is shaping a clear set of trading strategies. Steven Barrow of Standard Bank recommends shorting the euro against the U.S. dollar and Australian dollar, arguing that energy prices are unlikely to retreat soon. Barclays’ Fiotakis reached a similar conclusion: currencies with strong terms of trade, such as the Australian dollar, and safe-haven currencies like the Swiss franc are likely to benefit, while European currencies will remain under pressure.