Rising tensions in the Middle East triggered volatility across global markets at the start of the week, as investors reacted to escalating military action involving the United States, Israel, and Iran.

Over the weekend, joint U.S. and Israeli strikes targeted Iran, prompting retaliation across the region. U.S. President Donald Trump later indicated that military operations could continue for several weeks, increasing concerns that the conflict may extend beyond a short-term flare-up.

U.S. Indexes Close Mixed

Despite geopolitical uncertainty, major U.S. benchmarks delivered a mixed performance. The Dow Jones Industrial Average slipped 0.2%, the S&P 500 edged up less than 0.1%, and the Nasdaq 100 gained 0.4%.

While broader markets showed resilience, sector-level movements revealed clear winners and losers.

 
Travel and Leisure Stocks Under Pressure

Airline stocks were among the hardest hit as carriers adjusted or suspended Middle East routes amid safety concerns.

• Delta Air Lines
  
  
• United Airlines Holdings
  
  
• American Airlines Group

Shares of these major U.S. airlines declined between 2% and 4% as flight disruptions and higher fuel costs weighed on sentiment.

Cruise operators also suffered steep losses:

• Norwegian Cruise Line Holdings dropped nearly 11%
  
  
• Carnival Corporation & plc fell close to 8%
  
  
• Royal Caribbean Group slid around 3%

Online travel and hospitality companies were not spared.

• Booking Holdings
  
  
• Marriott International
  
  
• Hilton Worldwide

These stocks retreated as investors anticipated potential declines in global travel demand if the conflict expands.

 
Defense Contractors Lead the Gains

In contrast, defense and military-related companies attracted strong buying interest.

• Northrop Grumman surged roughly 6%, making it one of the top performers in the S&P 500.
  
  
• Palantir Technologies, which generates significant revenue from U.S. government contracts, climbed nearly 6%.
  
  
• RTX Corporation and Lockheed Martin also posted solid gains.
  
  
• Investors often rotate into defense stocks during periods of geopolitical instability, anticipating higher military spending.

 
Energy Stocks Rally as Oil Surges

Energy markets reacted sharply to the risk of supply disruption in the Middle East.

U.S. crude oil prices rose approximately 6%, while natural gas advanced about 4%, lifting shares across the energy sector.

Major oil producers moved higher:

• ConocoPhillips
  
  
• ExxonMobil
• Chevron Corporation
  
  
• Occidental Petroleum
  
  
• Phillips 66

Liquefied natural gas exporters also benefited.

• Venture Global LNG jumped 17%
  
  
• Cheniere Energy gained more than 5%

With the Middle East playing a central role in global energy supply, any threat to stability in the region typically drives oil and gas prices higher.

 
Market Outlook

For now, markets are balancing geopolitical risks against resilient economic data and corporate earnings. However, if the conflict broadens or disrupts energy infrastructure more severely, volatility could intensify.

In the short term, investors appear to be favoring defense and energy exposure while reducing positions in travel-related names. The direction from here will largely depend on whether tensions escalate further or show signs of easing.

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