Global Markets Reel as Iran Conflict Deepens, Oil Surges and Asian Shares Tumble

BY Rosemary

European stock markets opened cautiously higher on Wednesday, attempting to stabilize after a fresh wave of heavy selling across Asia, where South Korea’s benchmark index suffered one of its sharpest single-day declines in years. Investor nerves remained frayed as oil prices extended their rally, reflecting mounting concerns over supply disruptions tied to the escalating conflict between the United States, Israel and Iran.

Trading sentiment across global financial markets has been dominated by the intensifying hostilities, now in their fifth day. Israeli forces have reportedly expanded strikes targeting elements of Iran’s leadership and security apparatus, while Tehran has responded with missile barrages and coordinated drone attacks across the region. The widening confrontation has amplified fears that a prolonged conflict could severely disrupt crude flows through critical shipping routes and place sustained upward pressure on energy prices.

In early European dealings, Germany’s DAX rose 0.2% to 23,851.86, suggesting some stabilization after recent volatility. France’s CAC 40 hovered near flat at 8,105.25, while Britain’s FTSE 100 edged 0.1% lower to 10,470.00. Despite the modest moves, trading desks reported persistent caution, with many investors limiting exposure ahead of further geopolitical developments.

U.S. stock futures pointed slightly lower, with contracts indicating a 0.3% decline at the open. Wall Street had closed weaker the previous day after sharp intraday swings underscored heightened uncertainty. The S&P 500 ended down 0.9% after at one point sliding as much as 2.5%. The Dow Jones Industrial Average finished 0.8% lower, while the Nasdaq Composite dropped 1%. Traders cited energy-driven inflation risks and the potential for extended military engagement as key factors weighing on equities.

Oil markets remained at the epicenter of investor concern. U.S. benchmark crude climbed more than 3.5% to $77.18 per barrel, while Brent crude, the international standard, surged 3.7% to $84.38 per barrel. Since the outbreak of hostilities, Brent prices have jumped roughly 15%, reflecting what analysts describe as a significant “war premium.”

The Strait of Hormuz, a narrow maritime passage between the Persian Gulf and the Gulf of Oman, has become a focal point for markets. Approximately one-fifth of globally traded oil passes through the chokepoint, making it one of the most strategically sensitive corridors in global energy logistics. Any sustained disruption to tanker traffic through the strait could reverberate across supply chains worldwide.

U.S. President Donald Trump signaled on Tuesday that the administration was taking steps to safeguard maritime commerce. He announced he had directed the U.S. International Development Finance Corporation to provide political risk insurance and financial guarantees for maritime trade. He also indicated that the U.S. Navy could begin escorting tankers through the Strait of Hormuz if necessary.

Market analysts, however, cautioned that such measures may not fully offset risk premiums embedded in energy pricing. Mizuho Bank said in a commentary that while U.S. backing for shipping insurance and potential naval escorts could mitigate some risks, they would not eliminate the upside pressure on crude prices. The bank estimated that increased insurance and shipping costs could add between $5 and $15 per barrel, keeping the “war premium” firmly in place.

Asian markets bore the brunt of investor anxiety. South Korea’s Kospi plunged 12.1% to 5,093.54, marking one of the steepest drops among major global indices. Shares of Samsung Electronics fell 11.7%, while SK Hynix dropped 9.6%, as energy security fears overshadowed optimism surrounding the semiconductor sector’s gains from artificial intelligence expansion.

The Korea Exchange temporarily halted trading on the Kospi as volatility triggered market safeguards. A circuit breaker was also activated on the tech-focused Kosdaq after it fell more than 8%, before sliding nearly 14%. South Korea’s market had been among the world’s strongest performers this year, but its trade-dependent economy is heavily reliant on imported fuel, making it particularly vulnerable to disruptions in Middle Eastern supply routes.

Elsewhere in Asia, Japan’s Nikkei 225 declined 3.6% to 54,245.54. Like South Korea and Taiwan, Japan imports the bulk of its oil and natural gas from the Persian Gulf, leaving it exposed to price shocks. Hong Kong’s Hang Seng fell 2% to 25,249.48, while China’s Shanghai Composite slipped 1% to 4,082.47. Australia’s S&P/ASX 200 dropped 1.9% to 8,901.20, Taiwan’s Taiex lost 4.4%, and stocks in Bangkok fell 6%.

Currency markets reflected a cautious tone. The U.S. dollar weakened slightly to 157.46 Japanese yen from 157.74 yen, while the euro edged down to $1.1604 from $1.1612. Precious metals, often seen as safe-haven assets during geopolitical turmoil, attracted renewed demand. Gold prices rose 1.2%, and silver advanced 2.6%.

Beyond financial markets, consumers are beginning to feel the impact through higher fuel costs. In Europe and parts of Asia, reports emerged of motorists queuing at service stations amid concerns over further price increases. Although the United States is a net oil exporter and does not face immediate supply shortages, domestic gasoline prices remain tied to global crude benchmarks.

According to AAA, the average price of a gallon of regular gasoline in the United States climbed to $3.11, up 11 cents. The rise surprised some drivers, though analysts noted that prices had already been trending upward as refiners transitioned to more expensive summer fuel blends prior to the escalation in hostilities.

Economists warn that if the conflict persists, sustained energy price increases could rekindle inflationary pressures just as central banks were weighing interest rate adjustments. A prolonged spike in oil costs could complicate the Federal Reserve’s policy trajectory, potentially delaying anticipated rate cuts and adding another layer of uncertainty to already fragile markets.

For now, investors remain locked into a pattern of sharp, reactive trading, closely monitoring geopolitical developments. While some market participants believe a swift diplomatic resolution could trigger a rebound in equities, the prevailing sentiment suggests that volatility will persist as long as the trajectory of the conflict remains unclear.