The International Monetary Fund (IMF) has downgraded its 2026 global economic growth forecast for the second time in 2026, as persistent volatility from the energy crisis sparked by escalating conflict between the United States, Iran and regional allies continues to weigh on global economic activity. The latest projection puts 2026 global gross domestic product growth at 3%, a 0.1 percentage point downward revision from the IMF’s April forecast.
This mild slowdown in aggregate global growth is partially buffered by a surging investment boom centered on artificial intelligence, which is driving new consumer and enterprise demand and accelerating cross-sector innovation, according to the IMF’s latest World Economic Outlook update. The fund projects global growth will rebound to 3.4% in 2027, a figure that remains just slightly below the 3.5% average growth rate recorded across 2024 and 2025.
The most acute economic shock from the recent conflict escalation has landed on global energy markets. The Strait of Hormuz, a strategic chokepoint that typically handles daily transits of roughly 130 oil tankers before the latest conflict outbreak, has seen shipping volumes drop sharply to just 41 transits per day, due to ongoing risks of attacks targeting commercial vessels by Iranian forces.
Tensions escalated further this week after the U.S. resumed airstrikes on Iranian targets, following attacks on three commercial ships transiting the Strait of Hormuz. This resumption of direct military action has amplified policy and market uncertainty across global financial and commodity markets. On Wednesday, U.S. President Donald Trump stated that the ceasefire between the U.S. and Iran is “over”, just hours before the Pentagon conducted its second consecutive day of airstrikes on Iranian targets.
These developments have triggered a sharp jump in global crude oil prices: benchmark Brent crude briefly climbed above $79 per barrel, marking an approximately 7% price increase from pre-escalation levels.
Higher energy prices are already filtering through to push up global inflation, the IMF confirmed. The fund now projects average global inflation will reach 4.7% in 2026, up from 4.1% recorded in 2025, before easing back to 3.9% in 2027.
Petya Koeva Brooks, head of the IMF’s research department, noted that the global economy is currently being pulled in two opposing directions: by the lingering drag of the energy crisis triggered by Middle East conflict, and by the growth tailwind from a technology-driven investment surge. She emphasized that the current geopolitical environment carries unusually high levels of uncertainty and downside risk for global economic outcomes.
The IMF’s baseline projections are built on the assumption that the Strait of Hormuz will reopen to full commercial shipping traffic by mid-July, with conditions returning to pre-conflict levels by March 2027. However, the fund stressed that this optimistic baseline remains highly contingent on future political and military developments in the region, with significant room for worse outcomes if conflict expands.
Looking at regional growth breakdowns, the United States is projected to lead all major advanced economies in 2026 growth, with an expected GDP expansion of 2.3%. By comparison, the Eurozone is forecast to grow by 0.9%, the United Kingdom by 1%, Canada by 1.1%, and Japan by 0.6%. China, the world’s largest emerging market economy, is expected to post robust 4.6% growth in 2026 even amid mounting global geopolitical tensions.