Scenario Probabilities
- Baseline (24M conflict): P = 50%
- Optimistic (ceasefire M10): P = 22%
- Pessimistic (Hormuz 6M+): P = 28%
- Black swan (nuclear): P = 4% (not modeled)
Monte Carlo (10,000 runs)
68% CI: Oil $128–$168/bbl peak
95% CI: Oil $98–$215/bbl peak
Median GDP loss Yr1: −1.7%
P(recession) = 41%
P(Hormuz >30d) = 23%
Model Version History
- v2.2 (Apr 2026): Portfolio sim, scenario builder, PWA
- v2.1 (Mar 2026): EIA live proxy, theme toggle, ticker
- v2.0 (Feb 2026): Full ECharts rebuild, 6-tab layout
- v1.0 (Jan 2026): Initial static proof of concept
Key Assumptions
- +$10/bbl oil → +0.3% CPI (import economies)
- Shipping +100% → −0.4% trade volume
- SPR offsets 8–12 weeks of supply gap
- Saudi spare: 2.5M bbl/day relief
- Shale ramp: 6–9 month lag to market
Executive Summary
The 2026 Iran conflict represents the most significant geopolitical shock to global energy markets since the 1973 OPEC embargo. Unlike the 2003 Iraq invasion — which was rapid and relatively contained — this conflict combines Strait of Hormuz closure risk, IAEA inspection expulsion, Gulf Coalition military mobilization, and credible Iranian ballistic and drone capacity that threatens critical infrastructure across the Arabian Peninsula and beyond.
Our Baseline Scenario (P=50%) projects a 24-month active conflict phase, Brent crude peaking at $148/bbl within months 3–6, global inflation adding 3.8 percentage points in Year 1, and a cumulative global GDP loss of approximately $4.2 trillion over three years. The Middle East, East Africa, and South Asia bear the greatest humanitarian costs.
The Pessimistic Scenario (P=28%) involves Iranian closure of the Strait of Hormuz, triggering oil at $195–220/bbl, global recession in Years 1–2, and a potential fracture of the petrodollar system. The Optimistic Scenario (P=22%) assumes ceasefire by Month 10, oil at $105, and rapid reconstruction demand driving MENA equities higher.
Investor Action: Overweight defense (RTX, LMT, BAESY), energy producers (XOM, CVX, SHEL), and reconstruction (FLR, MDR). Underweight aviation, luxury consumer, and EM sovereigns. Hedge with gold, USD, and GSCI commodity futures.
Scenario Framework
- Baseline (P=50%): 24-month conflict, partial Hormuz disruption
- Optimistic (P=22%): Ceasefire Month 10, Hormuz reopens Month 8
- Pessimistic (P=28%): Full Hormuz closure 6+ months, regional expansion
- Black swan tail: Nuclear threshold breach (P=4%) not modeled
Historical Precedents
- 1973 Oil Embargo: CPI +9%, GDP −2.9% OECD (18-month lag)
- 1990–91 Gulf War: Oil spike +140%, receded in 6 months
- 2003 Iraq: Minimal oil disruption; different dynamics
- 2022 Russia-Ukraine: Energy price +200%, Europe CPI +10%
- Hormuz closure analog: 1987–88 Tanker War partial disruption
Energy Assumptions
- Iran produces ~3.3M bbl/day (pre-conflict)
- Hormuz: 20% of global oil, 18% of LNG transits daily
- SPR releases offset ~8–12 weeks of supply gap
- Saudi spare capacity: ~2.5M bbl/day short-term relief
- Shale ramp: 6–9 month lag to meaningful volume increase
Macro Model Inputs
- +$10/bbl oil → +0.3% CPI (import-heavy economies)
- Shipping +100% → −0.4% global trade volume
- War confidence shock: −0.5 to −1.2% GDP premium
- Defense crowd-out: +1% GDP defense = −0.2% private invest.
- Flight-to-USD: −10–20% EM FX basket
Data Sources
- EIA.gov: Oil supply, reserve capacity (live via /api/eia-oil)
- IMF WEO: GDP baselines and forecasts
- BIS: EM currency and debt exposure
- SIPRI: Defense expenditure data
- FAO: Food price and food security indices
- Baltic Exchange: Shipping rate benchmarks
Key Uncertainties
- Iranian ballistic missile accuracy vs Saudi oil infrastructure
- Chinese policy: sanctions compliance vs sanctions-busting
- US domestic political appetite for sustained engagement
- Alternative energy substitution speed (LNG, renewables)
- Global recession contagion via credit market tightening
💼 Portfolio Impact Simulator
Enter your holdings to see estimated scenario impact. Data stored locally only.
| Region | GDP Yr1 | Inflation Add. | Energy Exposure | Food Security | Currency Risk | Debt Stress | Recovery | Signal |
|---|
| Sector | 12M Signal | 3-Yr Signal | 12M Return Est. | 3-Yr Return Est. | Key Driver | Key Risk | Top Names |
|---|
🔴 Hormuz Full Closure (>90 Days)
- Probability: 18% baseline → 55% pessimistic
- Oil: $190–220/bbl within 3 weeks of closure
- Global recession virtually guaranteed in 2 quarters
- G7 emergency coordination + SPR drawdown
- Petrodollar fracture risk; BRICS rails accelerate
🔴 Saudi Oil Infrastructure Strike
- Abqaiq/Ras Tanura precision strike (2019 analog ×10)
- Removes 8–10M bbl/day for 3–12 months
- Oil: $200+; airline industry collapse in 4 weeks
- IMF emergency SDR; sovereign downgrades cascade
🟡 Regional Expansion (Lebanon/Iraq/Syria)
- Probability: 35% baseline; rises with duration
- Mediterranean shipping disruption; Suez transit risk
- European energy crisis 2.0 (LNG re-routing)
- Turkish geopolitical pivot; NATO Article 5 ambiguity
🟡 Chinese Sanctions Defiance
- China buys sanctioned Iranian oil at 40% discount
- Secondary sanctions on Chinese banks → decoupling
- USD reserve share drops 3–5% by 2030
- Global trade fragmentation accelerates 2–3 years
🟤 EM Sovereign Debt Crisis
- Pakistan, Egypt, Ghana, Sri Lanka forex crunch
- IMF bailout pipeline overwhelmed; frontier contagion
- Political instability in 5–8 countries by Year 2
- Refugee surge into Europe and Gulf states
🟢 Reconstruction Opportunity
- Post-conflict: $800B–$1.2T demand (MENA, 5–15yr)
- Defense/dual-use stocks surge 40–80% at ceasefire
- Gulf SWF deploy into Western infrastructure
- LNG terminal investment boom in EU
- Green energy: $500B+ in solar/wind mandates by 2030