
São Paulo's stock exchange closed on Monday down 0.42%, dragged by the plunge of the state oil company Petrobras after the international crude price fell, linked to the preliminary agreement between the United States and Iran. The Ibovespa, the benchmark index of Latin America's main exchange, ended the session at 170,415 points.

The United States and Iran reached a preliminary peace deal on Sunday to end nearly four months of war in the Middle East and reopen the Strait of Hormuz, Pakistan, the mediating country, announced. The agreement, confirmed by both US President Donald Trump and Tehran, will be officially signed on Friday, June 19, in Switzerland.

The United States and Iran traded fire for a second consecutive night, in what amounts to a more dangerous phase of the war in the Persian Gulf and raises the prospect of a return to open hostilities. As US forces again struck Iranian targets, the Revolutionary Guard said it had hit bases with a US presence in the region, and Iran's General Staff announced the absolute closure of the Strait of Hormuz. President Donald Trump threatened new strikes on Thursday if Tehran does not accept his conditions for peace.

The United States launched a series of strikes against Iran on Tuesday in retaliation for the downing of a US Apache helicopter over the Strait of Hormuz, Central Command (Centcom) said. The action marks a sharp escalation that deepens doubts over the ceasefire in place since April 8 and over the peace negotiations that President Donald Trump says are within reach.

US President Donald Trump said he would call Israeli Prime Minister Benjamin Netanyahu to ask him not to respond to the missiles Iran fired at Israel on Sunday, in an effort to prevent a new escalation and salvage a deal with Tehran that he considers very close. It was Iran's first direct attack since the ceasefire reached on April 8.

The administrations of US President Donald Trump and the Iranian government confirmed on Friday the existence of a preliminary agreement aimed at extending the current ceasefire by sixty days and opening formal talks on Iran's nuclear program, in what amounts to the most significant diplomatic advance since the start of the war three months ago. However, the versions disseminated by Washington and Tehran on the content of the understanding differ substantially on the central points: the reopening of the Strait of Hormuz, the fate of the highly enriched uranium under Iranian control, and the possible payment of frozen funds to the Islamic Republic.

US President Donald Trump on Wednesday ruled out that Russia or China could take control of Iran's stockpile of enriched uranium as part of a possible agreement to end the war. No, I would not be comfortable with that, the president replied tersely to journalists who asked about the possibility of Moscow or Beijing taking custody of the radioactive material with which Tehran could potentially build a nuclear weapon. The statement introduces a new complication into the negotiations both parties are conducting in Doha under Qatari mediation.

The US Armed Forces struck military targets in southern Iran on Monday in self-defense, according to a statement by US Central Command, in an episode that coincides with the arrival of Iranian negotiators in Qatar for peace talks mediated by the Qatari government. The operation also overlaps with the order issued by Israeli Prime Minister Benjamin Netanyahu to the Israeli army to step on the accelerator in its offensive against the Shiite militia Hezbollah in Lebanon, despite parallel negotiations between Tel Aviv and Beirut.

The administration of US President Donald Trump took it for granted on Sunday that within the coming days it will be able to announce an agreement with Iran to reopen the Strait of Hormuz, a maritime route through which approximately 20% of the world's oil flows and which has remained practically closed since the start of the US and Israeli offensive against the Islamic Republic on 28 February. Three months after the attack that killed Supreme Leader Ali Khamenei —replaced by his son Mojtaba— Washington and Tehran are negotiating a two-phase scheme that would ease pressure on the global economy without immediately resolving the underlying nuclear questions.

US President Donald Trump described Iran's response to Washington's latest proposal to end the war that has pitted the two countries against each other since 28 February as “totally unacceptable” on Sunday. “I have just read the response from Iran's so-called 'Representatives.' I don't like it — TOTALLY UNACCEPTABLE!” the president wrote on his Truth Social platform.