The U.S. stock market closed at fresh record highs Monday even as oil prices climbed sharply amid escalating uncertainty surrounding the Iran conflict, highlighting investor confidence in corporate earnings and artificial intelligence-driven growth despite mounting geopolitical risks.
Brent crude rose 2.9% to settle above $104 per barrel after U.S. President Donald Trump rejected Iran’s latest ceasefire proposal and described negotiations as being on “life support,” according to reports from the Associated Press and Reuters. The benchmark had traded near $70 before the conflict intensified earlier this year.
Despite the rise in energy costs, the S&P 500 advanced 0.2% to another all-time high, while the Nasdaq Composite also reached a record close. The Dow Jones Industrial Average gained modestly as investors continued rotating into technology and semiconductor shares.
Analysts said the market’s resilience reflects continued optimism around corporate profitability and AI-related investment spending, even as higher oil prices threaten to add inflationary pressure across global economies.
Corporate Earnings Continue Supporting Equities
Market momentum has remained closely tied to stronger-than-expected earnings results from major U.S. companies. Reuters reported that roughly 83% of companies in the S&P 500 that have reported quarterly results exceeded analyst expectations, with first-quarter earnings growth projected near 28.6% year over year.
Technology and semiconductor stocks again led gains. The PHLX Semiconductor Index rose 2.6%, supported by advances in chipmakers tied to artificial intelligence infrastructure demand. Intel climbed after reports of a potential chip agreement with Apple, while Qualcomm reached a record high.
Investors have increasingly focused on AI-related capital spending as a primary driver of market gains in 2026, helping offset concerns about slowing global growth and persistent inflation.
Market breadth, however, remains narrow. MarketWatch reported that a relatively small group of mega-cap technology stocks continues to account for much of the S&P 500’s gains, with only around 22% of index constituents outperforming the benchmark this year.
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Oil Market Pressures Raise Inflation Risks
The rebound in crude prices has renewed concerns about energy-driven inflation at a time when central banks remain cautious on interest-rate policy.
According to multiple reports, the ongoing disruption around the Strait of Hormuz continues to constrain global energy shipments. The waterway handles a substantial portion of global crude exports, and shipping interruptions have tightened supply expectations across energy markets.
Higher oil prices have already begun weighing on sectors sensitive to fuel and transportation costs, including airlines, travel operators, and discount retailers. Some consumer-facing companies also warned about rising input expenses linked to freight and energy.
Treasury yields edged higher during Monday trading as investors reassessed inflation expectations ahead of upcoming U.S. consumer price index data and retail sales figures later this week. Analysts said those reports could influence expectations for future Federal Reserve policy decisions.
Global Markets React to Geopolitical Uncertainty
International markets delivered mixed performances as investors monitored both Middle East developments and upcoming diplomatic discussions between Washington and Beijing.
Trump is expected to meet Xi Jinping later this week, with discussions likely to include energy security, Iran negotiations, and broader trade relations. China remains one of the largest buyers of Iranian crude exports, giving Beijing strategic leverage in any future diplomatic efforts.
Asian markets largely advanced, with South Korea’s benchmark index outperforming regional peers amid gains in semiconductor and technology shares. European equities were mixed as energy producers benefited from rising crude prices while broader indexes faced pressure from inflation concerns.
Economists and commodities analysts continue to warn that a prolonged disruption in Gulf shipping routes could place additional strain on global supply chains and energy inventories in the coming months.
