The Iron War: When the Strait Doesn't Reopen, Supply Chains Break — March 13, 2026
The Iran war has stopped being just an oil crisis — it's a full commodities supply chain emergency, with aluminum smelters going dark, fertilizer shortages forming, and a Fed trapped between war-driven inflation and a labor market already cracking.
Market Snapshot — March 13, 2026 (Friday)
| Asset | Price | Change |
|---|---|---|
| S&P 500 futures | ~6,696 | +0.35% |
| WTI Crude | $95.54/bbl | -0.20% |
| Brent Crude | $100.50/bbl | +0.04% |
| Gold | $5,115 | +0.72% |
| Silver | $84.60 | +0.94% |
| Aluminum (LME) | $3,519/tonne | +30.2% YoY |
| Iron Ore CNY | 817.50 | +2.77% weekly |
| BTC | $71,176 | +0.96% (5th straight gain) |
| 10Y Treasury | 4.265% | 5-week high |
| US Gas (national avg) | $3.60/gallon | +21% since Feb 28 |
Fourteen days into Operation Epic Fury, the narrative has shifted — quietly but significantly — from oil markets to something that will take longer to fix and longer to fully appear in economic data.
The Strait of Hormuz is still effectively closed. New Supreme Leader Mojtaba Khamenei, in his first public statement since succeeding his father (killed in the US-Israeli opening strikes on February 28), ordered that "the lever of blocking the Strait must continue to be used." Iran is now actively laying mines using small boats — harder to detect and clear than the larger mine-laying vessels the US Navy already sank. The US military's own assessment: the Navy is "simply not ready" to escort tankers, and won't be until month's end at the earliest. US intelligence confirmed what many feared: the Iranian regime is unified, with no signs of collapse. There is no imminent off-ramp.
This is where the second-order effects begin to matter.
Beyond Oil: The Aluminum Crisis Nobody's Talking About
Oil makes headlines. Aluminum doesn't — until it does.
Aluminum on the London Metal Exchange hit $3,519 per tonne this week, up more than 30% year-over-year and approaching four-year highs. The reason is structural: Qatalum in Qatar has halted all production after QatarEnergy cut gas supplies, while Aluminium Bahrain (Alba) — one of the world's largest smelters — has declared force majeure on contracts. Together, these two facilities represent over 2.2 million tonnes of annual production capacity. With Hormuz shut, there is no way to ship alumina feedstock in or finished metal out. Swiss trading house Mercuria is already withdrawing nearly 100,000 tonnes of aluminum from LME warehouses in anticipation of further tightening.
Some analysts are now forecasting $4,000/tonne. The all-time record is $4,103 (March 2022). The entire Gulf Cooperation Council represents roughly 9% of global aluminum output — and that supply is now at structural risk.
This matters far beyond the metal itself. Aluminum goes into aircraft, cars, construction, packaging, and power lines. A disruption of this magnitude is an inflationary impulse that won't show up in CPI until April or May — and markets haven't fully priced it yet.
Iron Ore, Fertilizers, and the Longer Game
Iron ore is on track for a strong weekly gain as Gulf pellet supply chains face long-term disruption. Iran and Bahrain together accounted for roughly 18% of global seaborne pellet exports in 2025. According to Kpler shipping data, no bulk carriers loaded with iron ore have been observed entering the Gulf since February 28.
The fertilizer story is arguably the most underreported risk of this entire conflict. About 25% of global nitrogen fertilizer exports — and 10% of phosphorus — move through the Strait of Hormuz. Growers may be covered for the current season, but if this disruption extends into the planting months, it becomes a 2027 harvest problem forming right now. Fertilizer prices have already risen globally as a direct consequence.
Meanwhile, Qatar's Ras Laffan LNG terminal has declared force majeure — and European natural gas prices spiked nearly 70% in the first week of the conflict. The US, which produces its own gas, barely felt it. Europe and East Asia are already in a different kind of pain.
The Macro Trap: Stagflation With a Side of Chaos
Today's data releases perfectly illustrate the bind markets are in.
The Fed's preferred inflation gauge — January core PCE — is expected to show year-over-year inflation at 3.1%, slightly above December's 3.0% and above consensus. More important than the number itself is what it represents: this is pre-war data. January inflation had nothing to do with oil at $100/barrel, gasoline surging 21%, or aluminum supply chains breaking down.
The March and April prints will capture the full weight of the energy shock, shipping insurance surcharges, and commodity price cascades. They will look meaningfully worse.
University of Michigan's March consumer sentiment fell to 55.9 from February's 56.6. Consumers' near-term inflation expectations are pointing higher, and this survey was collected right as the war began. The longer the closure continues, the more these expectations become self-fulfilling.
The Fed meets next Wednesday. A hold at 3.75% is a certainty. The real question is whether Powell acknowledges the word nobody in the room wants to use: stagflation. February's payroll report already showed a loss of 92,000 jobs. Rising prices combined with a softening labor market is precisely the scenario central banks have the least ability to address — you can't cut without feeding the inflation, and you can't hike without breaking growth.
The administration's countermeasures — 172 million barrels from the SPR, a 400-million-barrel coordinated IEA release, and temporarily lifting Russian oil sanctions to free ~130 million barrels at sea — are meaningful bridges, not solutions. The market's response has been to absorb each announcement and keep oil above $95. Brent closed above $100 for the first time since August 2022 on Thursday.
Today's Modest Bounce and What It Means
Markets are attempting a relief rally this Friday after three consecutive losing sessions. S&P 500 futures are recovering toward 6,696, up from Thursday's 2026-low close of 6,672.62. This isn't a change in trend — it's position squaring ahead of a weekend where anything can happen in the Middle East.
The critical technical level remains 6,636 (November 2025 low and Monday's intraday low). A decisive close below that opens the door to 6,596 — the 200-day moving average, unbroken for 10 months — and then 6,400. For context, the S&P equal-weight index is already down 11% from its high. The broader market is in worse shape than the headline number suggests.
One genuine wildcard: NVIDIA GTC kicks off Monday in San Jose. The Vera Rubin architecture reveal could inject a genuine AI catalyst into an otherwise bearish tape — and we covered the full GTC playbook earlier this week. NVDA at $183-185, near our entry zone. BofA reiterated Buy with a $300 target ahead of the keynote.
Where We Are and Where This Goes
The Iranian regime is not collapsing. US intelligence confirmed it explicitly this week. Mojtaba Khamenei's first statement was defiant, not conciliatory. Iran's stated ceasefire conditions — recognition of its rights, reparations, and guarantees against future aggression — are terms Washington will almost certainly not accept. This war is measured in weeks, not days.
BlackRock's base case of "weeks not months" of disruption is reasonable, but the risks are asymmetric. If the Hormuz closure extends beyond six weeks, models suggest oil in the $130-140/barrel range. Bloomberg Economics published that a three-month closure could push Brent to $164/barrel.
BTC at $71,176 is quietly on a five-session winning streak while equities struggle — an interesting divergence. Exchange supply is at a nine-year low, Strategy continues accumulating below cost basis, and ETF inflows have reversed a four-month outflow trend. The structural setup remains compelling even in a hostile macro environment.
The most honest read on the stock market: the S&P is only 4-5% off its all-time high while oil is up 50% in a month, the largest supply disruption in oil market history is playing out, private credit is cracking, and February payrolls were negative. That is either extraordinary confidence that this war ends quickly — or it's complacency waiting to be corrected. If the Hormuz closure holds past month-end and the intelligence assessment of a unified regime proves accurate, the market will have to reprice. Significantly.
Key Levels & Catalysts — Next Week:
- 6,636: S&P 500 critical support
- 6,596: 200-day moving average (10-month unbroken)
- $100: Brent psychological level — holding above signals continued supply premium
- March 16: NVDA GTC keynote (11 AM PT, San Jose) — Vera Rubin reveal
- March 18: FOMC decision + dot plot + Powell press conference
- March 18: PPI — first energy-affected producer prices print
- HY spreads at 281bps: Systemic risk threshold at 350bps
- BTC invalidation: Daily close below $62,900
Data sources: Trading Economics, CNBC, New York Times, NBC News, BlackRock Investment Institute, Kpler, S&P Global Energy. Data as of market open March 13, 2026.