Within 24 hours of the U.S. and Israel going to war with Iran, Tehran attacked commercial ships in the Strait of Hormuz, cutting crude exports nearly 90% to 1.8 million barrels a day in March from 16 million bpd in February, per Kpler. Flows have since rebounded as U.S. military protection for tankers continues, though attacks in October doubled from 15 in September to at least 30 vessels, leaving at least 16 seafarers injured as of Oct. 27, according to the International Maritime Organization. Crude exports through Hormuz averaged about 11.1 million bpd in October, only about 2% below September, though daily flows are volatile and fell to 7.3 million bpd in the week ended Wednesday. To reduce risk, shippers use a costly shuttle system that pushed supertanker day rates from $249,000 in early September to $931,000 in the first week of October, lifting transportation costs to about $21 a barrel from $6.50. The system depends entirely on U.S. air cover, and how long Washington stays engaged remains uncertain.
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Strait of Hormuzoil pricesIrangeopolitics
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Related tickers and likely impact
SPY
▼ Likely negativeSPDR S&P 500 ETF
Relevance: low
| Market | US stocks |
|---|---|
| Sector | ETF |
| Close on 10/29/2026 | 769.53 |
| Change that session | -0.36% |
XAU/USD
▲ Likely positiveRelevance: low
| Market | Gold |
|---|---|
| Close on 10/29/2026 | 4,021.63 |
| Change that session | -1.13% |
Impact is scored by AI from the headline and may be wrong. It is not investment advice.
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