Global Stock Markets Tumble Following Trump's Ultimatum to Iran
Stock markets across Asia and Europe experienced significant declines at the start of the week after former US President Donald Trump issued a stark ultimatum to Iran. On Saturday, Trump stated he was giving Iran 48 hours to open the Strait of Hormuz, a critical waterway that transports approximately one-fifth of the world's oil and liquefied natural gas supplies. The deadline is set to expire shortly before midnight GMT on Monday.
Sharp Declines in Asian and European Markets
In Asia, Japan's Nikkei share index dropped by 3.4%, China's CSI 300 fell 2.8%, and South Korea's Kospi plummeted 6.5%. European markets also saw substantial losses, with Spain's Ibex down 1.9%, France's CAC 40 index declining 1.5%, Germany's Dax dropping 1.9%, and the UK's FTSE 100 falling nearly 1.5%. These declines reflect growing investor anxiety over the potential escalation of conflict in the Middle East.
Energy Crisis and Oil Price Surge
The closure of the Strait of Hormuz by Iranian attacks has triggered a global energy crisis, described by Fatih Birol, head of the International Energy Agency, as equivalent to the combined impact of the 1970s oil shocks and the fallout from Russia's invasion of Ukraine. In response, oil prices rose, with Brent crude increasing 1.2% to $113.34 a barrel on Monday, though still below recent record highs. Goldman Sachs has revised its forecast, expecting Brent crude to average $85 a barrel this year, up from previous estimates of $77 a barrel.
UK month-ahead gas prices surged 3.1% to 155p a therm, nearly double pre-conflict levels. This rise in energy costs has alarmed investors, contributing to a slide in gold prices, with the spot price falling 5.8% to $4,226.16 an ounce as expectations of interest rate hikes grow.
Political and Economic Responses
Iran has warned it will "irreversibly destroy" essential infrastructure across the Middle East, including vital water systems, if the US acts on Trump's threat. In the UK, Prime Minister Keir Starmer is convening an emergency Cobra meeting with top ministers and Bank of England Governor Andrew Bailey to discuss the economic impact, energy security, and supply chain resilience. The Treasury highlighted that the crisis is increasing pressure on Starmer to announce a support package for energy bills, expected to rise by 20% when the current price cap expires in June.
Investors are closely monitoring the bond market, where the 10-year yield, a benchmark for UK borrowing costs, recently hit 5%, a level not seen since the 2008 financial crisis. This follows the Bank of England's decision to maintain interest rates at 3.75%. Meanwhile, the US dollar, often a safe haven during volatility, rose slightly, with the dollar index up 0.2%.
Broader Economic Implications
The situation underscores the fragility of global markets in the face of geopolitical tensions. Analysts warn that prolonged disruption in the Strait of Hormuz could lead to sustained high oil prices, exacerbating inflation and potentially triggering further interest rate hikes. This economic storm, dubbed "Trumpflation," could have widespread effects on consumers and businesses worldwide, highlighting the interconnected nature of modern economies.



