U.S. equities extended gains on Wednesday, with the S&P 500 and Nasdaq Composite closing at record levels after geopolitical tensions eased following an extension of the Iran–U.S. ceasefire.
The rally was reinforced by strong earnings momentum, but underlying volatility in energy markets continues to act as a persistent counterweight to risk appetite.
President Donald Trump said the ceasefire had been extended indefinitely following mediation efforts involving Pakistan. The announcement provided immediate relief to markets that have been closely tracking developments in the Middle East conflict, particularly the strategic Strait of Hormuz.
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However, the truce remains structurally fragile. U.S. naval forces are still enforcing a blockade on Iranian ports, while Tehran has seized additional vessels in the Strait of Hormuz, a critical chokepoint responsible for roughly one-fifth of global oil flows. Iranian parliamentary speaker and lead negotiator Mohammad Baqer Qalibaf has made clear that a full ceasefire would only be acceptable if the blockade is lifted, keeping a core geopolitical dispute unresolved.
That unresolved tension has not prevented equities from pushing higher, but it has altered how investors are interpreting risk. Stephen Massocca of Wedbush Securities captured the prevailing mood, saying, “Everyone’s kind of sick of it… clearly, the market is looking for a beneficial outcome or some kind of decent outcome here.”
His comment reflects a broader fatigue in markets, where prolonged geopolitical uncertainty is increasingly discounted in favor of near-term stability assumptions.
Beneath the surface, however, the macro backdrop remains highly sensitive to energy dynamics. Brent crude has hovered near the $100-per-barrel threshold, with traders increasingly pricing in supply disruption risk rather than immediate shortages. The International Energy Agency has warned that the situation represents what it calls the “biggest energy security threat in history,” while its executive director, Fatih Birol, cautioned that continued disruption in the Strait of Hormuz could force countries to “review their energy trade partners and trade routes.”
That energy risk premium has not derailed the equity rally, largely because earnings have continued to outperform expectations. First-quarter earnings growth across the S&P 500 is tracking at roughly 14%, according to LSEG data, while forward estimates continue to rise. Goldman Sachs data shows 2026 and 2027 earnings projections have increased by about 4% since January, suggesting that corporate America has so far absorbed higher input costs without a broad deterioration in margins.
Technology stocks have been central to the rally. The S&P 500 Information Technology Index outperformed all other sectors, rising more than 2%, supported by continued strength in semiconductor names. The Philadelphia Semiconductor Index extended its record streak, underscoring sustained demand expectations tied to artificial intelligence infrastructure spending.
Within the chip complex, momentum remains tightly linked to AI capital expenditure cycles. Micron surged sharply, while Seagate gained after a Barclays upgrade, underlining how memory and data infrastructure firms are benefiting from sustained compute demand. The semiconductor index has now logged one of its longest consecutive winning streaks on record, signaling strong conviction around AI-driven demand rather than cyclical recovery alone.
Corporate leadership in industrials and healthcare also contributed to gains. GE Vernova surged after raising its revenue outlook, while Boston Scientific climbed on stronger-than-expected results. Boeing added to Dow strength following a narrower quarterly loss, reinforcing the view that industrial demand is stabilizing even in a volatile macro environment.
The contrast with transport-sensitive sectors was more pronounced. United Airlines declined after warning that higher jet fuel prices are compressing margins and clouding its outlook. That divergence highlights a growing split in equity performance: energy-sensitive consumer and transport names are under pressure, while capital-intensive technology and industrial beneficiaries of AI investment continue to lead.
After markets closed, Tesla added to the risk-on tone, rising on positive free cash flow results. The move boosted investor appetite for high-growth equities despite macro uncertainty.
Market breadth remained constructive, with advancing stocks outpacing decliners across major exchanges. However, trading volumes remained below recent averages, suggesting participation is broad but conviction is still uneven. The S&P 500 recorded more than 30 new 52-week highs, while the Nasdaq Composite posted over 100 new highs, reflecting strong internal momentum even as macro risks persist.
A Different Story in Europe, though
In Europe, sentiment was more cautious. The STOXX Europe 600 traded slightly lower as energy concerns weighed on sentiment. Rising oil prices and weaker growth expectations across major economies offset strong corporate earnings in select sectors.
Energy markets remain the central pressure point. Brent crude climbed toward $103 per barrel after reports of Iranian tanker interceptions heightened concerns that the conflict could persist or escalate in indirect forms. The risk is no longer limited to outright supply disruption but extends to shipping insurance costs, route diversification, and strategic stockpiling behavior among importers.
European corporate results reflected this mixed environment. L’Oréal delivered its strongest quarterly growth in two years, driving a sharp rally in shares, while Nokia advanced on stronger-than-expected earnings driven by optical network demand linked to AI infrastructure expansion. In contrast, Saab declined after reporting weaker order intake, despite solid profit growth, underscoring uneven defense spending patterns across Europe.
Macroeconomic signals added another layer of caution. Germany cut its 2026 growth forecast to 0.5%, citing energy price pressures and geopolitical uncertainty tied to the Iran conflict. Officials also raised inflation expectations, signaling renewed concerns about cost pressures feeding into household and industrial demand.
Japan and South Korea equities initially hit record highs before reversing lower as news of tanker interceptions circulated, underscoring how quickly sentiment remains reactive to developments in the Strait of Hormuz.
The broader market structure now reflects a dual-track dynamic, where earnings resilience and AI-driven capital investment continue to support equity valuations, particularly in technology and industrial innovation sectors. But energy volatility and geopolitical fragmentation are reintroducing inflation risk into a market that had largely priced in disinflationary stability.