Iran ties Hormuz reopening to US concessions on several demands
Measured from 10 Aug 2026 (event start)
No validated historical precedent exists for this event yet. See below for what the system found and why it did not meet the validation bar.
XOM, CVX, MPC (direct exposure)
What Happened
Iran's Revolutionary Guards maintain closure of the Strait of Hormuz pending US concessions including sanctions relief and war damage compensation. Oil flows through Hormuz fell 90% to under 1.5 million barrels per day in May. The blockade began July 22. UAE has partially compensated by redirecting crude via alternate routes and boosting exports to pre-crisis levels by June, suggesting some adaptive capacity exists.
How This Reaches Markets
Hormuz blockade reduces global oil supply, pressuring prices upward. Higher oil prices lift refining margins and lift crude exporters' revenues while compressing margins for oil-consuming industries. Uncertainty over duration and scope of the blockade creates volatility in energy and transportation costs.
Companies Involved
Global integrated oil producer; exposed to feedstock cost inflation and shipping route disruption for crude exports from Middle East operations and imports for US refineries
Global crude producer with Middle East and downstream refining exposure; benefits from elevated crude prices but faces margin compression on refined product sales
US refiner dependent on crude supply; crude scarcity and rerouting costs directly impact input costs and refining margins
Strait of Hormuz carries roughly 21% of global seaborne oil trade; continued closure or partial closure reshapes energy supply chains and input costs across shipping, refining, and manufacturing.
Blockade ongoing since July 22, 2026; negotiations appear unresolved as of August 10
Iran announced on August 10 it is nearing a final pact with Oman on new shipping lanes but conditions remain unmet. The blockade began July 22, 2026. This is an ongoing negotiation with no clear resolution timeline, so markets are pricing in continued disruption.
Read how dates work →This event is too recent. The analysis below is what actually happened in comparable historical events. This report deepens automatically as market data accumulates.
No Validated Precedents
The system researched historical parallels for this event and measured each one against market data. None survived validation. A precedent is only used when its own measurement holds up, so this report carries no historical comparison.
How precedents are validatedHow To Read This
Each sector below is a basket of named stocks. The percentage shown is the move beyond the overall market (S&P 500) , what event studies call the . A move only counts as when it sits clearly outside that basket's normal weekly swings.
Breaking event. The market reaction has not happened yet and cannot be measured. The precedents below were researched for this event, measured from real market data, and validated against a statistical significance bar. This analysis deepens as market data accumulates.
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