Iran just claimed full control of the Strait of Hormuz and says no ship passes without their approval.

This is 20% of global oil supply and a third of seaborne petroleum flowing through a 21-mile chokepoint.

If they actually enforce this, oil spikes, tanker insurance explodes, and every energy ETF from $XLE to $USO catches a bid. Geopolitical risk premium just got real.

Watch crude futures, shipping stocks, and defense names. This isn't posturing anymore.