Periods of war almost always send a shockwave through financial markets. Higher commodity prices, supply chain tensions, geopolitical uncertainties: investors must navigate a much more unstable environment than usual.
The recent escalation of tensions around Iran perfectly illustrates this type of situation, with immediate repercussions on oil, currencies, and stock markets.
In this article, we will examine what the consequences of the war between the United States/Israel and Iran could be on financial markets, the sectors most exposed, the sectors that could benefit, as well as our professional tips for investing or trading in a war context.
What are the consequences of the United States–Israel–Iran war on financial markets?
The war between the United States, Israel and Iran has immediately triggered tensions on major stock exchanges. Because of Iran’s strategic weight in oil production, and especially its geographic position at the heart of the Persian Gulf, investors react quickly to every military escalation.
Concretely, several markets are directly impacted by the United States–Israel–Iran war:
- Oil is the first asset to react. Tensions around the Strait of Hormuz, through which almost 20% of the world’s oil passes, raise fears of supply disruptions, pushing crude prices higher.
- Inflation can also be affected. A sustained rise in oil increases the cost of transport and energy, fueling inflationary pressures in many economies around the world.
- Bond markets can then become more volatile, as higher inflation may prompt central banks to keep interest rates higher for longer.
- The U.S. dollar tends to strengthen in this kind of context. In periods of geopolitical tension, investors often turn to assets considered the safest.
- Equity markets also typically react with increased volatility. Investors reduce exposure to risky assets, which can lead to corrections of varying magnitude in stock indices.
In a war situation, a classic market movement is therefore observed: flight to safe-haven assets, pressure on commodities, and increased volatility in risky assets.
Which sectors are likely to be the most affected by the war?
In a Middle East conflict context, not all economic sectors are exposed in the same way. Some may be particularly vulnerable due to their dependence on energy, international trade, or geopolitical stability.
War economy: analysis of risks weighing on the most exposed sectors
| Sector | Why it may be penalized |
| Air transport | Airlines are highly sensitive to oil prices. A rise in kerosene costs reduces their margins and can weigh on their results, not to mention traffic restrictions in Gulf countries, especially since Dubai is a global aviation hub. |
| Maritime transport and logistics | Geopolitical tensions can disrupt trade routes and raise insurance or transport costs. This is all the more true for oil transport with a blockage of the Strait of Hormuz |
| Chemical and petrochemical industry | These industries rely heavily on hydrocarbons as raw materials. An increase in oil or gas raises their production costs. |
| Discretionary consumer | In times of uncertainty and energy inflation, households often reduce non-essential spending. |
| Automotive industry | Rising energy costs and slower economic activity can weigh on demand for vehicles. |
| Tourism and leisure | Geopolitical tensions and higher transport costs can curb travel and tourism attendance. |
Which sectors could benefit from the war?
While armed conflicts often generate uncertainty and volatility in financial markets, some sectors can paradoxically benefit. In the case of the United States, Israel and Iran conflict, several sectors could thus profit from this new economic and geopolitical setup.
War economy: analysis of opportunities in high-potential sectors
| Sector | Why it could benefit |
| Defense and weapons | Conflicts generally lead to higher military budgets and orders for defense equipment. Companies specializing in weapons, defense systems, or military electronics can see their activity grow. |
| Energy (oil and gas) | Tensions in the Middle East can trigger higher oil and gas prices. Large energy companies and hydrocarbon producers can benefit from higher prices. |
| Commodities and mining | In periods of international tension, some strategic commodities become more sought after (industrial metals, uranium, copper, etc.), which can support mining companies. |
| Cybersecurity | Modern conflicts also include a digital dimension. Cyberattacks and information warfare boost demand for cybersecurity solutions. |
| Gold and safe-haven assets | In periods of geopolitical uncertainty, investors often seek protection through assets deemed safe havens, such as gold. |
How to invest and trade in times of war? Advice from Café de la Bourse
War periods are almost always accompanied by high volatility in financial markets. Reactions can be rapid, sometimes excessive, as investors respond to uncertainty and information that often arrives in dribs and drabs.
In this context, the first thing to keep in mind is simple: don’t rush. When a conflict breaks out, markets can overreact in either direction. Before making an investment decision, it is therefore preferable to take a step back, observe market reactions and analytically consider what changes (or not) for the companies and sectors involved.
It is also important not to be carried away by fear or by euphoria. Fear can push some investors to sell in a panic, sometimes when markets hit a bottom. Conversely, enthusiasm around certain sectors, such as defense or energy, can lead some investors to buy stocks that are already highly overvalued.
Here are a few simple principles that can help you stay on track with your investments:
- Diversify your portfolio, so as not to be overly exposed to a sector or geographic area directly affected by the conflict.
- Maintain a long-term view, as history shows that markets generally absorb geopolitical shocks and wars.
- Manage your risk, especially for traders, for example with stop-loss orders to limit losses in case of abrupt moves.
- Keep a close eye on commodities and currencies, which are often the first markets to react to international tensions.
Finally, for active investors, these periods can also create trading opportunities thanks to higher volatility. But as always in the markets, these opportunities must be approached with discipline and a method, avoiding decisions taken in the heat of the moment.
All of our information is, by nature, generic. It does not take into account your personal situation and in no way constitutes personalized recommendations for executing transactions and cannot be equated to a financial investment advisory service, nor to any incentive to buy or sell financial instruments. The reader is solely responsible for the use of the information provided, with no recourse against the publisher Cafedelabourse.com. The publisher Cafedelabourse.com cannot be held liable in case of error, omission, or inappropriate investment.
