U.S., Iran reach tentative ceasefire deal as markets rally on peace hopes

The deal existed in draft form, waiting for the president's signature
A tentative U.S.-Iran ceasefire agreement had been reached but required Trump's approval to take effect.

In the fragile space between war and peace, the United States and Iran have sketched the outline of a sixty-day ceasefire extension and the promise of nuclear talks — enough to lift Asian markets and ease oil prices, but not yet enough to call it resolved. The Strait of Hormuz, that narrow passage through which a third of the world's seaborne oil must travel, remains the fulcrum on which global commerce balances. Even as diplomats drafted their memorandum, Washington imposed fresh sanctions on Iranian tankers and warned Oman against any toll on the waterway, revealing a government that pursues pressure and peace in the same breath. The agreement waits, unsigned, for a president's approval that has not yet come.

  • Global markets surged on the mere possibility of peace — Tokyo, Seoul, and Taipei each climbing more than two percent — revealing how deeply the U.S.-Iran conflict has unsettled the world's economic nervous system.
  • Oil prices began to fall as traders priced in the reopening of the Strait of Hormuz, but the relief rested on a draft agreement that no one had yet signed.
  • Washington complicated its own diplomacy by sanctioning eight Iranian oil tankers even as ceasefire talks advanced, signaling that economic pressure and negotiation would run on parallel tracks.
  • Treasury Secretary Bessent issued a pointed warning to Oman, threatening penalties against any actor facilitating tolls on Strait of Hormuz shipping — drawing a hard line around a waterway the U.S. considers beyond any nation's right to tax.
  • The entire architecture of relief — the market rally, the falling oil prices, the diplomatic momentum — rests on President Trump's approval, which has not yet been granted, leaving the deal suspended between hope and uncertainty.

Asian markets surged on Friday morning as word spread that the United States and Iran had reached the outlines of a ceasefire extension and an agreement to begin nuclear talks. Stock indices in Tokyo, Seoul, and Taipei each climbed more than two percent. Oil prices, which had swung wildly all week, began to ease — Brent crude falling toward $93 a barrel, West Texas Intermediate dropping to just under $88. The source of the optimism was the prospect that normal shipping might resume through the Strait of Hormuz, the narrow passage between Iran and Oman that carries roughly a third of the world's seaborne oil.

The agreement driving that optimism was real but incomplete. U.S. and Iranian negotiators had drafted a memorandum of understanding to extend their ceasefire by sixty days and launch formal nuclear discussions. An American official confirmed the emerging deal, though speaking anonymously. The critical obstacle: President Trump had not yet approved it. The agreement existed as a framework, waiting for a signature that had not come.

Washington's posture was anything but simple. Even as diplomats worked toward the deal, the Treasury Department sanctioned eight vessels involved in transporting Iranian oil, including tankers flagged to the Marshall Islands, Comoros, and Panama. Treasury Secretary Scott Bessent also issued a direct warning to Oman, stating that the U.S. would aggressively target any actors who helped impose tolls on Strait of Hormuz shipping — naming Oman explicitly and threatening penalties for willing partners in any such scheme.

What the moment revealed was negotiation in its most contradictory form: markets celebrating a peace that had not been signed, oil prices falling on a reopening that had not occurred, and a government simultaneously extending a diplomatic hand and tightening an economic fist. Whether Trump would approve the deal, whether the ceasefire would hold, whether the Strait would truly return to normal — all of it remained unresolved, the world's relief contingent on an outcome still very much in the balance.

The financial markets woke up hopeful on Friday morning. Across Asia, stock indices climbed sharply—Tokyo, Seoul, and Taipei each gained more than two percent, while Sydney rose one percent. The catalyst was simple and global: word that the United States and Iran might finally end their war, a conflict that had strangled the world's energy supply for months. Oil prices, which had swung wildly all week as traders tried to read the tea leaves of diplomacy, began to settle downward. Brent crude fell 0.9 percent to around $93 a barrel. West Texas Intermediate, the U.S. benchmark, dropped 1.1 percent to just under $88. The reason investors were suddenly optimistic was the possibility that normal shipping could resume through the Strait of Hormuz—the narrow waterway between Iran and Oman that funnels roughly a third of the world's seaborne oil trade.

Behind the market rally sat a tentative agreement, still unsigned. U.S. and Iranian negotiators had reached the outlines of a deal to extend their ceasefire for sixty days and to begin formal talks about Iran's nuclear program. An American official, speaking anonymously because they lacked authorization to comment publicly, confirmed the emerging memorandum of understanding. But there was a catch: President Donald Trump had not yet approved it. The deal existed in draft form, waiting for the president's signature to become real.

Even as negotiators moved toward that agreement, the U.S. government was tightening the screws elsewhere. The Treasury Department announced sanctions against eight vessels involved in transporting Iranian crude oil and petroleum products to international markets. The targets included the Marshall Islands-flagged tanker Flora, the Comoros-flagged crude carrier Hauncayo, and the Panama-flagged tanker Ill Gap. The message was clear: the U.S. was willing to pursue both diplomacy and economic pressure simultaneously.

Treasury Secretary Scott Bessent went further, issuing a direct warning to Oman, the nation that shares the Strait of Hormuz with Iran. The U.S. would not permit any toll system to be imposed on shipping through the waterway, Bessent said in a post on social media. He named Oman specifically, telling the country that the Treasury Department would aggressively target any actors—direct or indirect—who facilitated such tolls. Any willing partners in such a scheme would face penalties. The warning was unmistakable: the U.S. saw the Strait as too critical to global commerce to allow any nation to extract payment from passing vessels.

What emerged was a portrait of negotiation in motion, complicated and contradictory. Markets were rallying on the prospect of peace. Oil was flowing cheaper. But the U.S. was simultaneously sanctioning Iranian tankers and threatening Oman with economic punishment. The ceasefire extension remained unsigned. Trump's approval was still pending. The deal that had sent shivers of relief through global financial markets existed only as a tentative framework, a possibility rather than a fact. Whether it would hold, whether Trump would sign, whether the Strait would truly reopen to normal traffic—all of that remained uncertain. The world was watching to see if the agreement would survive its next test.

The United States Government will not tolerate any effort to impose a tolling system in the Strait of Hormuz.
— Treasury Secretary Scott Bessent
Oman, in particular, should know that the U.S. Treasury will aggressively target any actors involved—directly or indirectly—in facilitating tolls for the Strait and any willing partners will be penalised.
— Treasury Secretary Scott Bessent
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why did markets rally so sharply on the news of a tentative deal that Trump hasn't even signed yet?

Model

Because the Strait of Hormuz is the artery of global oil supply. If it reopens to normal shipping, energy prices fall, and cheaper energy lifts everything else. Investors were betting on that outcome, even though the deal was still unsigned.

Inventor

But the U.S. was simultaneously sanctioning Iranian oil tankers. How does that fit with peace negotiations?

Model

It's leverage. The U.S. is saying: we'll talk ceasefire and nuclear talks, but we're also punishing your oil trade right now. It keeps pressure on Iran even as diplomats negotiate. It's not contradictory—it's negotiating from strength.

Inventor

What about the warning to Oman? That seemed very specific.

Model

Oman sits on the Strait. The U.S. was worried Iran might try to impose tolls on shipping as a way to extract revenue or control. So Treasury Secretary Bessent made it clear: if Oman cooperates with any toll system, we'll sanction them too. It's preemptive.

Inventor

So the deal could still fall apart?

Model

Absolutely. Trump hasn't signed off. The ceasefire extension is only tentative. Markets were betting on the best case, but the agreement is still fragile—it exists only on paper, waiting for approval.

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