US-Iran Memorandum of Understanding: Implications for Global Markets

By Patricia Miller

Jun 15, 2026

3 min read

The US and Iran have signed a deal to reopen the Strait of Hormuz, tying sanctions relief to Iran's compliance on nuclear commitments.

The United States and Iran have taken a significant step towards reducing tensions by signing a Memorandum of Understanding focused on reopening the Strait of Hormuz for global shipping. This digital agreement, finalized between June 12 and 15, features prominent figures such as President Donald Trump, Vice President JD Vance, and Iranian parliament speaker Mohammad Bagher Qalibaf as signatories.

How does this agreement hold Iran accountable?

The memorandum highlights a conditional framework, where any benefits Iran receives are explicitly tied to its compliance with the agreement. Notably, this signing did not involve any immediate release of cash or access to frozen funds for Iran. Instead, it stipulates that 65% of the relief from sanctions hinges on Iran's future adherence to the set conditions, thereby ensuring that the United States maintains significant leverage throughout the negotiation process.

With the Strait of Hormuz being a critical artery responsible for approximately 20% of global oil trade, its gradual reopening is anticipated to begin immediately, but the increase in shipping traffic will unfold gradually rather than abruptly.

What commitments has Iran made on nuclear development?

Iran has asserted its commitment to refrain from the development of nuclear weapons, although details concerning the monitoring and enforcement of this commitment are not included in the memorandum. These specifics will be addressed during a 60-day negotiation period commencing after the signing. A formal signing ceremony is scheduled for June 20, likely in Switzerland, that will further solidify these commitments.

Why does this Memorandum differ from previous agreements?

Critics of the 2015 Iran nuclear deal, known as the JCPOA, have pointed out that it granted Iran extensive economic relief without adequate verification of compliance regarding nuclear capabilities. This previous deal collapsed in 2018 when the Trump administration chose to withdraw. Under the second Trump administration, a policy of maximum pressure took effect, characterized by stringent sanctions and military showing designed to curb Iran’s nuclear ambitions.

The new Memorandum of Understanding retains significant control by making a substantial portion of sanctions relief contingent upon compliance, providing a structured approach unlike previous agreements. The format of the digital signing, where all parties executed the document during a defined period instead of in a single public event, also shows planned intentions to finalize the agreement before the public display on June 20.

How could this impact global markets and investors?

The reopening of the Strait of Hormuz is a pivotal moment for global oil markets. As it resumes operations, the gradual normalization of shipping lanes could increase oil supply, likely leading to a decrease in crude prices. The gentle ramp-up allows market participants to adjust without facing sudden shifts in pricing.

For cryptocurrency markets, past changes to sanctions involving Iran have affected local cryptocurrency usage and trading. Should sanctions relief be realized, the urgency behind Iran's crypto adoption may lessen.

However, the conditional nature of this agreement introduces some uncertainty. Should Iran meet its obligations, sanctions relief will follow. Conversely, if compliance falters or if negotiations fail within the 60-day window, the framework of the agreement could collapse. Investors focused on energy, commodities, and equities in the Middle East should monitor the upcoming weeks closely, aware of the implications these developments may hold for their portfolios.

Important Notice And Disclaimer

This article does not provide any financial advice and is not a recommendation to deal in any securities or product. Investments may fall in value and an investor may lose some or all of their investment. Past performance is not an indicator of future performance.