Brent crude oil reached $115 a barrel on Monday as escalating tensions between the U.S. and Iran intensified, with President Donald Trump threatening to destroy Iranian infrastructure if the Strait of Hormuz remains closed. Following the spike, Brent crude settled slightly lower at around $114.30. Meanwhile, West Texas Intermediate, the U.S. crude benchmark, rose 5% to $105.
The heightened geopolitical risk contributed to renewed volatility on Wall Street, with major U.S. stock indices extending a five-week losing streak. After early gains, the S&P 500 fell 0.4%, deepening its decline since the onset of the Iran conflict to 9.1% below its record high set earlier this year. The Nasdaq Composite also dropped 0.7%, while the Dow Jones Industrial Average managed a modest 0.1% gain.
The Dow entered correction territory last week amid investor concerns over the potential economic fallout from the war in Iran. Many economists warn this instability could increase the risk of a U.S. recession later this year.
Market Response to Geopolitical Uncertainty
Chris Larkin, managing director of trading and investing at E*TRADE from Morgan Stanley, noted that political uncertainty and rising oil prices are challenging market gains. He added that, historically, most geopolitical shocks are short-lived, but without a clear resolution to the Iran conflict, sustained market recovery remains uncertain.
The recent escalation also included conflict spillover with Houthi rebels in Yemen entering the fray, further complicating the regional dynamics and the future of oil supply routes.
Investor Outlook and Inflation Concerns
Despite the downturn, some investors view the current market discounts as potential buying opportunities. Analysts at Morgan Stanley highlight that, accounting for projected profit growth, the S&P 500 is about 17% cheaper than before the war began—comparable to prior geopolitical scares that did not trigger recessions or Federal Reserve rate hikes. This suggests the stock correction might be nearing its end.
However, rising oil prices raise concerns that the Federal Reserve could maintain or even increase interest rates to control inflation, which may weigh further on economic growth and asset prices. Bond markets reacted to these prospects with fluctuating Treasury yields. On Monday, the yield on the 10-year Treasury note eased to 4.35% from 4.44% on Friday, providing some relief to investors.
Why it matters
Rising oil prices and geopolitical tensions threaten to exacerbate inflationary pressures across the global economy. Prolonged disruption of oil supply routes, especially through the Strait of Hormuz, could push gas prices higher, impacting transportation and consumer costs. This environment complicates monetary policy decision-making and raises the prospect of slower economic growth or recession risks in the U.S. and globally.
Financial markets remain sensitive to developments in the Iran conflict as investors weigh how long disruptions to oil supply may persist and the impact on inflation, interest rates, and corporate earnings.
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