Hormuz: the Shock That Could Shake Markets

Hormuz: the Shock That Could Shake Markets

In the worst case, oil above $150, gold rallies and global indices fall by up to 25%.

The most catastrophic scenario for global markets begins with a precise assumption: Iran definitively cuts off every negotiation channel with the United States, talks through mediators collapse, the Strait of Hormuz remains hostage to the crisis, and military tensions spread from the Persian Gulf to Lebanon, the Red Sea and Bab el-Mandeb. In this context, investors would no longer be pricing in a temporary diplomatic crisis, but a genuine global energy shock.

The breaking point would be Hormuz. If maritime traffic were interrupted or significantly reduced for several weeks, the oil market would shift from pricing in a risk premium to pricing in physical scarcity. Alternative routes would not be sufficient to quickly offset the disruption, while insurance costs, freight rates, war-risk premiums and logistical delays would amplify the impact on prices.

In a scenario of partial but persistent blockage, Brent could rise rapidly by 35-50%, moving into the $125-140 per barrel range. In the most severe case, with Hormuz almost completely closed and regional energy assets directly involved, Brent could climb to between $150 and $170, with intraday spikes even approaching $180. WTI would likely follow with an estimated increase of 30-60%, moving into the $115-145 range.

The most dangerous effect would not only be the absolute price of oil, but its persistence. Crude oil above $130 for more than four to six weeks would have a direct impact on inflation, corporate margins, consumer spending and interest-rate expectations. Transport, airlines, chemicals, manufacturing, logistics and discretionary consumption would be among the most exposed sectors. Energy, defense and oil services could initially outperform, but in a phase of generalized panic even these segments could face violent profit-taking.

The first impact on equity indices would be a rapid and synchronized correction. In an initial phase, with oil above $120, the S&P 500 could lose 8-12%, the Nasdaq 100 10-15%, the Euro Stoxx 50 10-14% and the FTSE MIB 12-16%. Europe would be more vulnerable than the United States due to its energy dependence, manufacturing exposure and less technology-driven market structure.

In the extreme scenario, with Brent above $150, inflation rising again and central banks forced to maintain a restrictive stance, the correction could become much deeper. The S&P 500 could risk a drawdown of 18-25%, the Nasdaq 100 22-30%, the Dow Jones 15-22%, the Euro Stoxx 50 20-28% and the FTSE MIB 22-30%. The DAX, strongly linked to industry and exports, could fall by 20-27%, while the Nikkei could face a decline of 15-25%, partly due to Japan’s energy dependence.

The Nasdaq would be particularly vulnerable because it starts from elevated valuations, supported by the artificial intelligence theme and highly ambitious earnings expectations. In a context of an oil shock, higher bond yields and increased risk aversion, growth multiples would be compressed. Even high-quality stocks could suffer forced selling, not because of structural business deterioration, but because of the need to reduce risk across global portfolios.

Gold would follow a more complex path. In the initial phase, it could suffer from higher real yields and a stronger dollar. However, in a catastrophic scenario, demand for protection would become dominant again. With military escalation, oil above $150 and an equity correction of more than 20%, gold could rise by 10-20% from current levels, moving into the $5,000-5,400 per ounce range. In a broader financial panic scenario, with recession risk and a flight from risky assets, an extension toward $5,600 could not be ruled out.

The dollar would strengthen in the first phase as a safe-haven currency and due to higher US yields. The Dollar Index could appreciate by 3-6%, weighing on emerging-market currencies, the euro and sterling. The yen would have a more ambiguous reaction: traditionally a safe-haven currency, but penalized by Japan’s energy dependence and still-fragile monetary policy. The Swiss franc, by contrast, could benefit more clearly from the search for safety.

In the bond market, the initial move would likely be negative. The yield on the 10-year Treasury could rise by 40-80 basis points if the oil shock were interpreted as inflationary. In Europe, the Bund could behave more defensively, but peripheral spreads would tend to widen. For Italy, in a severe risk-off scenario, the BTP-Bund spread could increase by 50-100 basis points, especially if the crisis coincided with a deterioration in European growth.

Credit would be another point of vulnerability. High-yield spreads could widen by 150-300 basis points, with greater pressure on indebted, cyclical and lower-rated companies. Businesses exposed to fuel costs, transport and discretionary consumption would likely face downward earnings revisions. The market would start pricing not only lower margins, but also a higher default risk in the most fragile segments.

The VIX, still relatively contained today compared with the gravity of the geopolitical scenario, could quickly rise above 30 points. In the event of a technical breakdown in equity indices and systematic liquidations, a move toward 40-50 points would be consistent with a panic phase. Volatility would not be limited to equities: oil, gold, currencies and rates would also enter a phase of sharp daily instability.

The most insidious risk for markets is the combination of inflation and recession. Excessively high oil prices act as a tax on consumers and businesses. If central banks responded with restrictive rhetoric to contain inflation expectations, risky assets would suffer a double blow: lower expected earnings and higher discount rates. This would be the most negative scenario for equities, because it would simultaneously reduce growth, margins and valuation multiples.

In summary, in the most catastrophic scenario the market map would be clear: sharply higher oil prices, gold recovering as a safe-haven asset, a stronger dollar, initially higher yields, credit under pressure and global equity indices facing a deep correction. The estimates most consistent with a genuine shock in Hormuz point to Brent between $150 and $170, gold between $5,000 and $5,600, the S&P 500 down by up to 25%, the Nasdaq down by up to 30% and European indices potentially under pressure by 20-30%.

The key variable remains the duration of the crisis. A blockage lasting only a few days would generate violent but probably absorbable volatility. A blockage lasting several weeks would turn the geopolitical crisis into a macroeconomic shock. A blockage lasting months, however, would open the door to a global stagflation scenario, with much deeper consequences for portfolios, consumption, corporate earnings and financial stability.