US-Iran Peace Agreement: Unprecedented Global Market Surge and Oil Price Collapse

Rally in Asian and European Stock Markets

The announcement of a Memorandum of Understanding (MOU) between Washington and Tehran injected a wave of unprecedented optimism into financial markets. Japan's Nikkei 225 jumped 5.5% and South Korea's KOSPI rose 5.7%, leading the rally in Monday morning trading [1]. In US futures markets, the S&P 500 and Nasdaq indices grew by 1% and 1.8% respectively [1.1.1]. Economic analysts believe this agreement, which ends a 15-week war, has drastically reduced geopolitical risks and increased appetite for risky assets [1.3.4].

Energy Price Collapse and Reduced Inflationary Pressures

One of the most significant immediate consequences of this agreement was the freefall of global oil prices. Brent crude fell by more than 4.5% to approximately $83.40 per barrel, its lowest level in three months [1.1.1, 4]. The imminent reopening of the Strait of Hormuz, which was previously blocked due to the conflict and supplied one-fifth of the world's oil, has significantly eased concerns over energy shortages and global inflation [1.3.3]. US President Donald Trump announced in a message that with the formal signing of the agreement, the Strait of Hormuz will be reopened "toll-free" and the blockade of Iranian ports will end [1.1.2, 2].

Details of the Memorandum of Understanding and Reopening of the Strait of Hormuz

This agreement, achieved through active mediation by Pakistan and Qatar, includes a temporary framework to end military operations on all fronts, including Lebanon [1.1.4, 1.2.2]. According to this MOU, a 60-day ceasefire period will be established for the parties to negotiate more complex issues, including Iran's nuclear program and the full lifting of sanctions [1.4.3]. Iranian officials have confirmed that the reopening of the Strait of Hormuz will take place within the next 30 days under specific security arrangements [1.3.8]. The official signing ceremony for this contract is scheduled to be held on Friday, June 19, 2026, in Switzerland [1.1.4].

Diplomatic Challenges and International Reactions

While G7 leaders and the UN Secretary-General have welcomed this diplomatic breakthrough as a vital step for global stability, some challenges remain [1.2.3, 1.2.6]. Israeli officials expressed skepticism toward the agreement, stating they do not consider themselves bound to stop operations against Hezbollah positions in Lebanon [2]. Furthermore, issues such as the nature of IAEA inspections and the release of Iran's frozen assets will be sensitive points of negotiation in the upcoming 60-day period [1.4.5, 3]. Nevertheless, the positive market reaction reflects deep hope for the end of one of the most dangerous energy crises in modern history [1.3.3].