A renewed escalation in the Middle East crisis, marked by an exchange of attacks between the United States and Iran, has triggered significant volatility across global financial markets. Iran’s Islamic Revolutionary Guard Corps (IRGC) confirmed attacks on US military bases in the Gulf region in retaliation for US strikes near Bandar Abbas airport, warning of a 'more decisive' response if provoked again [1][5]. This marks the second US attack in three days, with Kuwait reporting missile and drone attacks, and the US imposing fresh sanctions on the Persian Gulf Strait Authority, complicating navigation through the Strait of Hormuz [3][5].
The heightened geopolitical risk has pushed oil prices higher, with WTI crude trading 1.7% up to near $89.85, though it failed to consolidate above $90 during the European session [3][5]. The International Energy Agency’s Fatih Birol described the situation as the 'largest energy security crisis the world has ever faced,' predicting it will reshape energy investment patterns [3]. US crude inventories declined for the sixth consecutive week, falling by 2.8 million barrels, further supporting oil prices [3].
Despite the typical safe-haven appeal of gold during crises, XAU/USD is trading 1.43% lower near $4,390, close to a two-month low of $4,366.56, as elevated energy prices stoke US inflation and diminish expectations for Federal Reserve rate cuts [1]. The US Consumer Price Index (CPI) rose to 3.8% YoY in April, the highest in nearly three years, and the upcoming US Personal Consumption Expenditure (PCE) Price Index is expected to show a similar 3.8% YoY increase, up from 3.5% previously [1][2][5]. According to the CME FedWatch tool, the probability of the Fed holding rates steady this year is 43.1%, a sharp reversal from earlier expectations of two rate cuts before the Middle East crisis [1].
The US Dollar Index (DXY) has rallied to its highest level since early April, supported by resilient US growth and expectations for a more restrictive Fed stance. Brown Brothers Harriman’s Elias Haddad notes that the DXY could overshoot its 96.00–100.00 range, with the Atlanta Fed GDPNow model estimating Q2 annualized real GDP growth at 4.3% as of May 21, up from 2.0% in Q1 [2]. Even dovish Fed officials have signaled openness to further rate hikes if inflation persists [2].
Asian stock markets have clawed back some early losses but remain significantly down, with the Nikkei 225 off nearly 1%, Hang Seng down 1.3%, and KOSPI lower by 0.55%, as higher oil prices weigh on energy-importing economies [5]. ABN AMRO analysts expect elevated oil prices to persist, pressuring EUR/USD towards 1.14 in the near term, though a rebound to 1.20 is forecast by end-2026 as energy prices normalize and ECB policy turns more hawkish relative to the Fed [4].
CONCLUSION
The escalation between the US and Iran has driven oil prices higher, pressured gold and Asian equities, and reinforced expectations for a more restrictive Federal Reserve policy. Markets are now focused on the upcoming US PCE inflation data for further direction. Elevated energy prices and persistent inflation are likely to keep volatility high across asset classes in the near term.