Global ETF Rides a Wave of Relief, But Storm Clouds Linger

A two-week US-Iran truce triggered a sharp drop in oil prices and a broad global stock market rally, but strategists warn underlying economic risks remain.

A two-week ceasefire between the US and Iran has delivered a powerful shot of adrenaline to global stock markets, sparking a broad-based rally that lifted the Vanguard FTSE All-World UCITS ETF. The relief was palpable, with the fund posting a weekly gain of 2.29%, yet strategists caution that the underlying structural risks in the global economy remain firmly in place.

The immediate trigger for the surge was a historic plunge in oil prices. Following the diplomatic announcement, WTI crude futures crashed more than 16% to $94.41 a barrel, their largest single-day drop since April 2020. Brent crude fell roughly 13% to $94.75. This dramatic reversal came less than two hours before a US ultimatum to reopen the Strait of Hormuz, a critical chokepoint for about one-fifth of the world's traded oil. The sharp decline in energy costs provided immediate relief to inflation-sensitive markets, particularly in Europe and Asia.

Investors responded with a rush back into risk assets. The Dow Jones Industrial Average jumped approximately 2.85%, marking its best performance since April 2025, while the S&P 500 and Nasdaq gained 2.51% and 2.80%, respectively. In Europe, the Stoxx 600 closed 3.7% higher. The rally was even more pronounced in emerging markets, which logged their strongest day since 2022. South Korea led the charge with a surge of more than 10%, followed by Chile (up around 7%), with Taiwan, Turkey, Mexico, and India each climbing over 5%.

For the globally diversified Vanguard ETF, the US market remains the dominant engine. With nearly 60% of its portfolio allocated to American equities, the performance of mega-cap technology stocks like Nvidia, Apple, Microsoft, Amazon, and Meta is crucial. These companies powered higher on the news, with Meta receiving an additional boost from new AI product announcements. Analysts point out that the fundamental investment cycle in artificial intelligence was not broken by the recent war-driven sell-off, which was primarily macroeconomically driven. They continue to forecast double-digit earnings growth for major US corporations in the first quarter of 2026.

Despite the forceful rebound, market observers describe the situation as fragile. A mere two-week truce does not constitute a permanent resolution. The ongoing nervousness is evident in the oil market, where prices, despite the recent crash, still trade almost 50% above their pre-war levels. The current market move is seen by many as a positioning reset rather than a sustainable return to a stable risk environment, with investors not fully unwinding their hedges.

Looking ahead, the upcoming April earnings season will refocus attention on corporate fundamentals. While robust profit expectations from tech giants may support the global market environment for now, significant trade policy uncertainties loom. The Trump administration has announced a universal 10% import tariff for 150 days, lasting until July 24, 2026. Although pharmaceuticals and electronics are currently exempt, the government has signaled that tariffs on pharmaceuticals could rise to as high as 200% by mid-to-late 2026. For a globally diversified fund, these are not abstract risks but direct factors that could impact corporate earnings worldwide.