Global Markets Soar as Oil Prices Plummet Following US-Iran Peace Deal on Strait of Hormuz
Finance

Global Markets Soar as Oil Prices Plummet Following US-Iran Peace Deal on Strait of Hormuz

authorBy Strive Masiyiwa
DateJun 15, 2026
Read time3 min
A significant peace agreement between the United States and Iran has led to a major reshuffling in global markets, with stock indices climbing and oil prices retracting. This pivotal development, centered on the reopening of the strategic Strait of Hormuz, signals a shift in international economic dynamics.

Historic Accord Reshapes Global Economic Landscape

Market Euphoria: Dow Sets New Benchmark Amid Broad Gains

Following the announcement of a peace agreement between the U.S. and Iran, global markets surged. The Dow Jones Industrial Average, a key indicator of market performance, achieved an unprecedented intraday high with a substantial increase of 607 points, representing a 1.2% rise. This positive momentum was mirrored across broader indices, as the S&P 500 advanced by 1.3%, and the Nasdaq Composite closed with an impressive 2.2% gain, reflecting widespread investor optimism.

Oil's Descent: Energy Prices React to Geopolitical Thaw

The peace deal triggered a sharp decline in oil prices, reaching their lowest point in approximately three months. West Texas Intermediate (WTI) crude settled at $79.72 per barrel, marking a 6% decrease. Similarly, August Brent futures closed at $82.74 per barrel after shedding more than 5%. This level had not been observed since early March and represents a significant 30% reduction from the peak of $119.50 that Brent reached during the peak of the conflict. European natural gas prices also experienced a downward trend.

International Markets Catch the Wave of Optimism

The positive sentiment extended beyond U.S. borders, with international equity markets registering substantial gains. Asia and Europe witnessed broad-based advances; South Korea's Kospi surged by 5.2%, Tokyo's Nikkei 225 hit a new record intraday high with a 5% increase, and the pan-European Stoxx 600 added 0.6%.

Presidential Decree: Reopening the Strait of Hormuz

President Donald Trump formally announced the completion of the agreement with Iran via a social media post, authorizing the immediate reopening of the Strait of Hormuz. He declared the deal complete and greenlit the "toll-free opening" of the waterway, alongside the removal of the U.S. Naval blockade. Vice President JD Vance later affirmed that the strait is expected to remain open without tolls for the foreseeable future, underscoring the long-term implications of the accord.

Lingering Questions: Future Negotiations on Iran's Ambitions

Despite the significant breakthrough, some issues remain unresolved. Pakistani Prime Minister Shehbaz Sharif indicated that a formal memorandum of understanding is slated for signing in Switzerland. However, market observers noted that critical matters such as Iran's nuclear program are likely to be addressed in subsequent negotiations, as reported by The Wall Street Journal.

Strategic Waterway: Global Impact of Hormuz Reopening

The Strait of Hormuz is a vital maritime choke point, responsible for transporting approximately one-fifth of the world's seaborne oil and liquefied natural gas. Its closure during previous hostilities had significantly driven up global energy prices. Even before the formal announcement, oil prices had begun to recede as President Trump hinted at diplomatic progress. A draft agreement published by Iranian state media the previous Friday had already led to a 2.5% drop in WTI crude to $85.47 per barrel and a 2.2% fall in Brent to $88.40.

Economic Ripple Effects: Inflation Relief and Federal Reserve's Role

The reduction in energy costs provided much-needed relief on the inflation front, resulting in a global decline in government bond yields. In the U.S., market expectations shifted, indicating a decreased likelihood of an interest rate hike before the end of the year. Attention this week will also be keenly focused on Kevin Warsh's inaugural appearance as Federal Reserve chair, particularly his first rate-setting meeting. While no immediate change to borrowing costs is anticipated, investors are eager to discern his stance on inflation and his overall approach to leading the central ban

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