How the USA–Iran War Is Reshaping Inflation, Interest Rates, and Global Market Sectors in 2026

Alberto Chiesa
a few seconds ago
3 min read

The USA–Iran conflict has disrupted energy markets, driven oil to over $100/barrel, increased inflation expectations, delayed 2026 rate cuts, and reshaped sector performance across defense, energy, agriculture, logistics, and precious metals.

Why Oil Prices Are Surging

On February 28, 2026, US and Israeli forces launched coordinated strikes against Iran, killing Supreme Leader Khamenei and targeting nuclear infrastructure. The war has since spread to Lebanon and Gulf states, with Iran retaliating across US bases in the region. The Strait of Hormuz — through which 20% of global seaborne oil transits — is effectively disrupted. Brent Crude hit an all time high of $119.50/ barrel on Monday March 9th 2026, and before that it climbed from ~$70 to $90/barrel in just six days — a 28% surge that signals markets are pricing in a prolonged disruption.

No one can predict duration. Two scenarios define the investment landscape.

Short vs. Long Conflict: Market Scenarios

A short conflict (4–6 weeks) sees oil pull back toward ~$70–75/bbl, inflation impact remains transitory, and central banks hold rates steady. Europe's winter-ending gas reserves provide a buffer.

A protracted war (3+ months) keeps Brent at current levels or pushes it toward $110–120/bbl. Goldman Sachs projects US CPI hitting 3%+ by year-end; the EU faces recession risk. Interest rates stay higher for longer — or rise. SME financing conditions deteriorate materially.

East Asia is most exposed: China, Japan, India and South Korea together source 75% of oil from the Gulf. Shipping war-risk premiums will remain elevated well beyond any ceasefire.

Investment Implications for SMEs and Private Credit

The war inserts a hawkish bias into global monetary policy at the worst possible moment. The Fed rate-cut cycle anticipated for 2026 is now effectively deferred. The ECB, already signalling caution, is frozen. For SME borrowers on floating-rate debt, this means compressed interest coverage ratios and harder refinancing conditions. Private debt investors should prioritise covenant monitoring across energy-intensive portfolio companies.

Sector Winners / Sector Risks

Defense: Clear beneficiary. US and Israeli defense contractors are seeing surge orders. European re-armament acceleration gains new urgency.

Energy / Oil & Gas: With Brent at around $100/barrel and climbing, producers are immediate winners — political risk premium creates volatility. North American producers gain relative advantage over Gulf-exposed operators.

Agriculture: Fertilizer prices rising on gas cost inputs. Food inflation risk is real, particularly in import-dependent MENA and South Asian markets.

Shipping & Logistics: War-risk insurance costs structurally elevated. Cape of Good Hope rerouting adds 7–10 days per voyage. Gulf-exposed operators face sustained margin pressure.

AI & Technology: Indirect but material impact. Rising energy costs and semiconductor supply chain disruption add headwinds. Strategic demand from defense AI applications accelerates.

Gold & Precious Metals: The standout safe haven. Gold surged past $5,300/oz immediately post-strikes. Our analysts target $6,000–$6,300 by year-end, supported by central bank buying and embedded geopolitical uncertainty.

Private Credit / Direct Lending: Higher-for-longer rates and deteriorating SME cash flows demand active portfolio management. Select distressed and special situations opportunities are emerging.

Bottom Line: Why the Timeline of the War Matters More Than Any Forecast

Duration is everything. A swift resolution limits damage; a protracted war reshapes the macro landscape through 2026–2027. With oil already passing the $100/barrel mark a week after the conflict began, the cost of inaction is rising fast. Stress-test portfolios for the worst case, prioritise defensive positioning in private credit, and maintain gold exposure — the conflict's end remains impossible to forecast with confidence.

For professional investors only. This does not constitute investment advice.