Market focus: Strait of Hormuz risks

Investors are treating the Strait of Hormuz as the market’s main risk gauge after weekend talks on Iran ended without an agreement. (perpetual.com.au) Perpetual said on April 13 that the ceasefire was still holding, but the failed weekend talks pushed oil about $8 a barrel higher in weekend trading. The firm said oil was still about $15 a barrel below pre-ceasefire levels. (perpetual.com.au) Fortune reported on April 13 that investors had largely written off a Federal Reserve rate cut this month as Iran talks collapsed and inflation risks from energy moved back to the front of the market. (fortune.com) The strait is a narrow shipping lane between the Persian Gulf and the Gulf of Oman, and the United States Energy Information Administration calls it the world’s most important oil transit chokepoint. In the first half of 2025, about 20.9 million barrels a day moved through it, equal to about 20% of global petroleum liquids consumption and one-quarter of seaborne oil trade. (eia.gov) The problem for traders is that there are few workarounds if traffic slows or stops. The Energy Information Administration said only limited alternative pipeline capacity exists to move crude around the strait. (eia.gov) The International Energy Agency said in its April 2026 oil market report that attacks on energy infrastructure and restrictions on tanker movements through the strait cut global oil supply by 10.1 million barrels a day in March, the largest disruption on record. (iea.org) The agency had already said on March 20 that governments might need demand-cutting steps to cushion consumers from higher diesel, jet fuel and liquefied petroleum gas prices tied to Middle East disruptions. (iea.org) Perpetual said on April 8 that the duration of any effective Hormuz closure was the key swing factor for oil, inflation and growth, and that a closure lasting three to six months would likely cause a global recession. (perpetual.com.au) The United States Energy Information Administration said last week that the strait has been effectively closed to shipping traffic since military action began on February 28, and that nearly one-fifth of global oil supply normally passes through it. (eia.gov) That is why each headline on talks, tanker access and ceasefire enforcement is feeding straight into oil, inflation and interest-rate bets. Until shipping through Hormuz normalizes, markets are likely to keep trading the waterway as much as the diplomacy. (perpetual.com.au)