U.S. stock futures experienced a sharp decline on Monday following the initiation of extensive airstrikes on Iran by the United States and Israel. This development triggered a significant shift away from riskier assets, reflecting heightened market anxiety.
At 05:25 ET (10:25 GMT), Dow Jones Futures had dropped by 560 points, or 1.1%, while S&P 500 Futures, or 1%. Similarly, Nasdaq 100 Futures slumped by 350 points, or 1.4%. These declines followed a negative session on Wall Street last Friday, where concerns over artificial intelligence-related risks and persistent inflation had already dampened investor sentiment.
Geopolitical Tensions Erode Risk Appetite
Over the weekend, a series of strikes were launched by the U.S. and Israel against Iran, resulting in the deaths of hundreds, including Supreme Leader Ayatollah Ali Khamenei. In retaliation, Iran carried out attacks on Israel and several other Middle Eastern nations, such as Bahrain, Qatar, and the United Arab Emirates.
This escalation has significantly heightened fears of a broader conflict in the Middle East, particularly as Iran has vowed further retaliation. Negotiations over Iran’s nuclear enrichment activities, which had shown little progress, have now been overshadowed by these developments.
President Donald Trump, addressing the situation on Sunday evening, stated that operations against Iran would persist until all objectives were achieved. However, he also warned of the potential for additional American casualties, following the deaths of three U.S. service members.
Iran’s top security official, Ali Larijani, who has emerged as a key figure in the government after Khamenei’s death, declared on X (formerly Twitter) that negotiations with the United States would not be pursued. This statement further solidified Tehran’s hardened stance, despite earlier discussions about a potential nuclear deal.
Market Reactions Reflect Heightened Uncertainty
The strikes and subsequent retaliation have underscored the fragility of global trade routes, as noted by Lauren Hyslop, Fund Manager at Mattioli Woods. Although the Strait of Hormuz, a critical channel through which approximately 20% of the world’s daily oil supply flows, has not been officially closed, shipping traffic has significantly decreased. Many shipping companies have begun rerouting their vessels.
As a result, the immediate market response has followed a familiar pattern. Oil and energy prices have surged, equities have broadly declined, gold has strengthened, and the U.S. dollar has gained. Defense stocks are expected to attract interest, while sectors such as airlines and manufacturing are likely to face challenges. For bond investors, the situation remains complex, as the traditional flight to safety is being counterbalanced by the inflationary pressures of rising energy costs.
Oil Prices Surge Amid Supply Concerns
Oil prices have surged in response to the weekend’s events, with the conflict threatening to disrupt the Strait of Hormuz. Brent crude futures rose by 7.7% to $78.50 per barrel, reaching their highest level since January 2025. Meanwhile, U.S. West Texas Intermediate crude futures climbed by 7.4% to $71.97 per barrel, marking their highest point since June.
According to Afdhal Rahman, Executive Director of Wealth Advisory at OCBC, the duration and broader implications of this conflict remain uncertain, which could lead to increased market volatility in the near term. He also noted that markets had largely shrugged off the last major conflict involving Israel, the U.S., and Iran in 2025, primarily due to the speed at which that situation was resolved.
In conclusion, the unfolding geopolitical tensions have introduced significant uncertainty into global markets, with investors closely monitoring developments and their potential impact on trade, energy supply, and broader economic stability.
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