Ceasefire Looks Fragile
The ceasefire calmed markets, but its durability is uncertain because the status of the Strait of Hormuz remained unclear and U.S. and Iranian officials traded warnings that strikes could resume. (nytimes.com) That ambiguity matters because if the truce falters, energy and shipping costs could spike again — and President Trump’s simultaneous threat of a 50% tariff on countries supplying arms to Iran risks broadening the crisis from security into trade. (scmp.com, tradecomplianceresourcehub.com)
The fighting paused, oil fell, and stocks bounced, but the key waterway at the center of the crisis still did not have a clean answer on April 8 and April 9: who exactly controls passage through the Strait of Hormuz, and on what terms. Reuters reported that Iran was still telling ships they needed permission, while Bloomberg reported traffic remained blocked on Thursday. (usnews.com, bloomberg.com) That is why markets calmed faster than shipping did. The New York Times reported that investors welcomed the ceasefire on April 8, but shipowners, insurers, and traders still had to decide whether a tanker entering the strait would actually get through without being stopped, searched, or hit. (nytimes.com, nytimes.com) The Strait of Hormuz is a narrow sea lane between Iran and Oman that carries about one-fifth of the world’s oil and liquefied natural gas. When traffic there slows, the effect is like pinching one end of a garden hose that feeds fuel to Asia, Europe, and the United States all at once. (usnews.com, cnbc.com) Even after the truce, the numbers stayed thin. Reuters said only a few vessels had crossed with Iranian permission by April 8, and CNBC reported just four transits on Wednesday while more than 400 oil tankers and dozens of gas carriers waited outside the Gulf for clearer signals. (usnews.com, cnbc.com) The warnings from both sides are what make the pause look more like a timeout than a settlement. Reuters quoted an Iranian message saying unauthorized ships could be “targeted and destroyed,” while United States officials kept describing the arrangement as conditional on a complete and safe opening of the strait. (usnews.com, cnbc.com) That leaves shipping companies in the worst position: peace on television, risk on the water. Maersk said the ceasefire might create transit opportunities but not full maritime certainty, and Hapag-Lloyd said it wanted proof the truce would hold before reopening selected orders. (usnews.com) The damage does not end when the shooting stops. Hapag-Lloyd’s chief executive told Reuters that restoring flows to normal could take six to eight weeks, and shipping analysts told CNBC that tanker traffic may take weeks or even months to recover because owners remember how long Red Sea attacks kept routes disrupted last year. (usnews.com, cnbc.com) Now the trade side is creeping into the same story. On April 8, President Trump threatened a new 50 percent tariff on countries that supply Iran with weapons, which means a crisis that started with missiles and tankers could spread into customs duties, supply chains, and retaliation by other governments. (scmp.com, politico.com) That tariff threat also lands in the middle of a legal fight over how far Trump can go. Reed Smith’s tariff tracker says the Supreme Court ruled on February 20, 2026, that the International Emergency Economic Powers Act does not authorize the president to impose tariffs, and Politico reported that the legal path for this new 50 percent threat is already being questioned. (tradecomplianceresourcehub.com, politico.com) So the ceasefire is doing two jobs at once, and neither job is finished. It has lowered the immediate temperature enough to pull oil prices down, but it has not yet restored normal passage through the world’s most important oil chokepoint, and Washington is already adding a second front in trade that could outlast the guns going quiet. (nytimes.com, cnbc.com, scmp.com)
