Jamie Dimon warns Iran war could drive inflation, interest rates higher

• The Iran war threatens oil and commodity price shocks while disrupting global supply chains for products like fertilizer, helium, shipbuilding, and food, particularly affecting nations dependent on imported energy
• Dimon warned of a 'skunk at the garden party' scenario where inflation slowly rises in 2026 instead of declining, which could cause interest rates and asset prices to drop and trigger a flight to cash
• Multiple economic outcomes are possible, ranging from a traditional recession with lower inflation to stagflation where inflationary forces overcome deflationary ones, with impacts varying across different regions

Summary

JPMorgan Chase CEO Jamie Dimon warned in his annual shareholder letter released Monday that the ongoing Iran war could drive inflation and interest rates higher than markets currently anticipate. Dimon highlighted that the conflict poses risks of significant oil and commodity price shocks, along with disruptions to global supply chains that may cause inflation to remain "stickier" and more persistent than expected.

Key Concerns:

Dimon identified geopolitical risks—particularly the Iran war and related conflicts—as the foremost threats to financial markets and the global economy. He noted that nations dependent on imported energy are already experiencing effects, with disruptions extending beyond oil to byproducts like fertilizer and helium, as well as supply chain impacts in shipbuilding, food, and farming.

Market Implications:

The CEO warned that if inflation rises instead of declining, it could trigger higher interest rates and falling asset prices, describing interest rates as "gravity to almost all asset prices." He outlined potential scenarios including recession with deflation or stagflation (recession with inflation). Dimon cautioned that a "bad confluence of events" could result in high credit losses, market volatility, lower asset prices, and elevated unemployment.

Economic Outlook:

Dimon specifically highlighted a worst-case "skunk at the garden party" scenario for 2026 where inflation slowly increases rather than decreases, potentially causing significant drops in interest rates and asset prices. He emphasized that falling asset prices could rapidly change market sentiment and trigger a "flight to cash."

The letter was released alongside JPMorgan's 2025 annual report, underscoring the bank's concerns about geopolitical instability reshaping the global economic order.