European stock markets fell sharply on Monday as investors reacted to confirmed U.S. military strikes on Iranian nuclear and military infrastructure over the weekend, triggering a broad risk-off move across equities, a surge in crude oil prices, and a flight to safe-haven assets including gold and German government bonds.

The pan-European STOXX 600 index dropped 2.3 percent in early trading, with energy, airline, and consumer discretionary sectors recording the steepest declines as traders priced in the possibility of sustained disruption to Middle East oil supply routes.

How Markets Reacted Across Europe

The selloff was broad but uneven, reflecting sector-specific exposure to energy price volatility and regional trade dependencies on Middle Eastern supply chains.

Market movements recorded in early trading:

• London's FTSE 100 fell 1.9 percent, led lower by airline stocks and retail companies with energy-intensive supply chains
• Frankfurt's DAX dropped 2.6 percent, with German industrial exporters and chemical manufacturers among the hardest hit
• Paris's CAC 40 declined 2.4 percent as luxury goods companies with significant Asian revenue exposure sold off alongside energy-linked stocks
• Milan's FTSE MIB fell 2.1 percent, reflecting Italy's above-average dependence on imported energy

Bond markets moved in the opposite direction, with yields on German 10-year Bunds falling as investors sought the safety of sovereign debt. Gold rose above 3,400 dollars per troy ounce, extending a rally that had already pushed the precious metal to record highs earlier this year.

Oil Prices Surge on Strait of Hormuz Concerns

Brent crude climbed more than 6 percent in early Monday trading, briefly touching 98 dollars per barrel before pulling back slightly as traders assessed the likelihood of Iranian retaliation targeting oil infrastructure or shipping lanes through the Strait of Hormuz.

The Strait of Hormuz is the world's most critical oil chokepoint:

• Approximately 20 percent of global oil supply transits the strait daily
• Any sustained closure or disruption would immediately tighten global supply
• European nations that import significant volumes of Gulf crude face direct price exposure
• Liquefied natural gas shipments from Qatar, a major European gas supplier, also pass through the strait

Energy analysts noted that markets were not yet pricing in a full closure scenario but were assigning meaningfully higher probability to prolonged regional instability that could intermittently disrupt tanker traffic and insurance availability for vessels operating in the Gulf.

Why European Economies Are Particularly Vulnerable

Europe's energy transition remains incomplete, and the continent still depends heavily on imported fossil fuels to meet industrial and residential energy demand. The Russian invasion of Ukraine in 2022 forced a costly restructuring of European energy supply away from Russian pipeline gas, leaving several economies with higher baseline energy costs and reduced resilience to additional supply shocks.

Factors amplifying Europe's exposure to this latest crisis:

• Higher energy import dependency compared to the United States, which has achieved near energy self-sufficiency through domestic oil and gas production
• Industrial sectors in Germany, Italy, and the Netherlands that remain highly sensitive to natural gas and electricity price movements
• Airline industries still recovering from post-pandemic financial stress, now facing a renewed spike in jet fuel costs
• Central banks with limited room to offset energy-driven inflation through monetary policy without risking growth

The European Central Bank, which had been navigating a careful path between controlling residual inflation and supporting slowing economic growth, now faces a more complicated policy environment if sustained oil price increases feed through to consumer prices over the coming weeks.

What Analysts and Economists Are Watching

Financial analysts are focused on several near-term indicators that will determine whether Monday's selloff represents a short-term shock or the beginning of a more sustained market correction.

Key variables markets are monitoring:

• Whether Iran retaliates militarily and whether any response targets oil infrastructure in Saudi Arabia, the UAE, or Iraq
• U.S. and allied statements on the duration and scope of military operations
• OPEC plus response, including whether member states increase output to compensate for potential Iranian supply disruption
• Insurance market conditions for tankers operating in the Persian Gulf
• European Central Bank communications on whether the oil shock changes the near-term interest rate outlook

Goldman Sachs and JPMorgan both published early notes flagging upside risk to their oil price forecasts for the second half of 2026, with Goldman citing a 15 percent probability of Brent reaching 110 dollars per barrel if the conflict escalates beyond its current scope.

What This Means for European Consumers and Businesses

Energy price spikes do not remain contained within financial markets. They transmit quickly into the real economy through fuel costs, electricity tariffs, and the pricing of goods that depend on energy-intensive manufacturing or long-distance logistics.

Likely near-term impacts on European households and businesses:

• Higher pump prices for petrol and diesel within days of sustained crude price increases
• Electricity price increases in markets where gas-fired generation sets the marginal price
• Increased operating costs for airlines, shipping companies, and logistics operators
• Potential margin pressure on manufacturers with energy-intensive production processes
• Renewed public and political pressure on governments to extend or reintroduce energy subsidy programs

Small and medium-sized enterprises, which typically have less capacity to hedge energy costs than large corporations, face disproportionate exposure if prices remain elevated through the summer months.