Trump Rules Out Iran Ceasefire as Oil Prices Surge

Global oil prices surged and U.S. Treasury yields hit multi-year highs after Donald Trump ruled out an extension of a 60-day ceasefire with Iran that expired on August 17, 2026. The memorandum of understanding, designed to keep the Strait of Hormuz open during nuclear negotiations, collapsed after Iran alleged the U.S. violated the terms. In response, the Government of Iran announced a shift to a fully offensive military posture, while Trump demanded Iran's surrender and implemented a strategy of economic isolation and port blockades.

Tensions escalated in the Strait of Hormuz, where the United Arab Emirates accused Iran of attacking ADNOC vessels and later froze all trade with Tehran following detected ballistic missile launches. While Trump claimed the waterway is open and under U.S. control, shipping data showed traffic plummeted from 130 vessels per day to a trickle. Trump further threatened to bomb Oman if the country interfered with U.S. interests during its separate negotiations with Iran over the strait's management.

The geopolitical instability triggered significant market volatility. Brent crude climbed above $91 per barrel, and the 30-year U.S. Treasury yield reached its highest level since 2007. Despite the public stalemate and military threats, reports emerged that the Trump administration has opened back-channel discussions with the Islamic Revolutionary Guard Corps. Meanwhile, regional conflict expanded as Houthi militants attacked a Saudi military ship and its escorts in the Red Sea.