Iran has claimed it has closed the Strait of Hormuz, a development that has immediately triggered caution across global energy and equity markets.

The assertion comes at a critical juncture, as traders are simultaneously processing reports that the United States and Iran have reached an agreement to reopen the vital waterway.

2% lower, signaling broad risk-off sentiment among equity investors.

This contradictory flow of information has left market participants bracing for significant volatility, with the physical reality of the closure yet to be confirmed by independent shipping data.

The immediate market reaction reflects deep uncertainty.

Futures indicate the Australian Securities Exchange (ASX) is set to open 0.2% lower, signaling broad risk-off sentiment among equity investors.

Meanwhile, oil markets remain on edge, with Brent crude prices halting a recent decline as traders price in the potential for a supply shock.