US stocks moved lower on Monday as March kicked off, navigating heightened geopolitical risk following large-scale US-Israeli air operations against Iran, which sent energy prices higher and pushed traders toward defensive assets. Stock futures fell while Treasury prices climbed, reflecting a risk-off tone across global markets at the start of the week
The Dow Jones Industrial Average led losses in early trading, while the S&P 500 and Nasdaq Composite also declined as surging crude prices raised fresh concerns about inflation and global growth. Energy markets reacted immediately to fears that escalating conflict near the Strait of Hormuz could disrupt oil supplies, prompting investors to rotate away from travel and cyclical sectors and into defense and energy names.
Market Movers:
- AeroVironment (AVAV) +19% — Shares surged as drone and unmanned systems stocks rallied amid escalating Middle East tensions that boosted expectations for higher global defense spending. Investors bet that rising geopolitical instability will accelerate the adoption of surveillance and strike-drone technology across military and security markets.
- Lockheed Martin (LMT) +4% — Defense contractors gained as investors rotated into traditional geopolitical safe havens following the regional escalation. Expectations for sustained military procurement and increased allied defense budgets supported the broader aerospace and defense complex.
- EOG Resources (EOG) +3% — Oil producers advanced after crude prices spiked on fears of supply disruption tied to conflict near key shipping routes. Higher energy prices improved earnings outlooks across exploration and production companies as traders priced in tighter global supply conditions.
- Norwegian Cruise Line Holdings (NCLH) -10% — Cruise stocks sold off sharply as rising fuel costs and geopolitical uncertainty weighed on travel demand expectations. Investors also reacted to mixed forward guidance that signaled softer booking momentum entering 2026.
- Delta Air Lines (DAL) -5% — Airline shares declined after airspace disruptions across parts of the Middle East triggered flight cancellations and operational uncertainty. Higher jet fuel prices added pressure to margin expectations across the aviation sector.
- Berkshire Hathaway (BRK.B) -4% — Shares slipped after the conglomerate reported a sharp year-over-year drop in operating earnings, weighed down by weaker insurance underwriting results. The report also marked Warren Buffett’s final quarter as CEO, adding to investor reassessment of future leadership transition risks.
- FedEx (FDX) -3% — The logistics giant fell after suspending pickup and delivery services across several Middle Eastern countries due to regional airspace closures. Investors grew cautious about potential supply-chain disruptions and longer international shipping times if tensions persist.
Oil Spike Drives Market Sentiment
Energy markets became the dominant driver of Monday’s trading session as crude prices jumped sharply on fears of escalating conflict in the Middle East. The Strait of Hormuz remains one of the world’s most critical oil transit routes, and any prolonged disruption could quickly ripple through global transportation, manufacturing, and consumer prices.
The move reignited inflation worries just as markets had begun anticipating a clearer path toward Federal Reserve rate cuts later this year. Rising energy costs historically feed into broader price pressures, complicating the outlook for monetary policy.
Defensive Rotation Returns
Investors rotated aggressively into defense contractors, energy producers, and safer assets while pulling back from travel, transportation, and consumer-sensitive industries. Treasury demand strengthened alongside the equity sell-off, highlighting renewed demand for stability amid geopolitical uncertainty. Market strategists noted that geopolitical shocks often reshape short-term leadership, with sectors tied to security, commodities, and infrastructure typically outperforming during periods of global instability.
Global Risk Back in Focus
The escalation adds a new macro risk at a time when markets were already grappling with AI-driven sector disruption, trade uncertainty, and uneven economic data. Investors now face the possibility that geopolitical developments — rather than earnings or inflation alone — could dictate near-term market direction. Heightened uncertainty around shipping routes, energy supply, and regional stability could keep volatility elevated as global markets assess whether tensions remain contained or broaden further.
Looking Ahead
Markets will closely monitor oil prices, diplomatic developments, and upcoming economic data for signs of whether geopolitical tensions evolve into a sustained economic shock. A prolonged energy rally could reignite inflation pressures and delay interest-rate cuts, leaving investors bracing for continued volatility as March trading gets underway.