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Markets · June 14, 2026

US-Iran Ceasefire Set for June 19 Signing; Strait of Hormuz Reopens After 4-Month Blockade

The agreement halts military operations and lifts the naval blockade, but nuclear negotiations and sanctions relief remain unresolved.

US-Iran Ceasefire Set for June 19 Signing; Strait of Hormuz Reopens After 4-Month Blockade Photo · Carlos Mendoza for InvestLin

The United States and Iran have reached a ceasefire agreement, bringing a near four-month military conflict to a close. A formal signing ceremony is scheduled for June 19 in Switzerland, according to multiple reports on Sunday. Pakistan Prime Minister Shehbaz Sharif, whose country mediated the talks, confirmed the deal on social media, stating that the agreement includes an immediate and permanent end to military operations across all fronts, including in Lebanon.

President Donald Trump confirmed the breakthrough on Truth Social, authorizing the immediate reopening of the Strait of Hormuz and the removal of the U.S. naval blockade. "Ships of the World, start your engines. Let the oil flow!" Trump wrote. The Strait of Hormuz, a critical chokepoint for global oil shipments, had been effectively closed since late February, disrupting supply chains for crude, natural gas, and fertilizers.

The blockade had contributed to rising inflation and renewed stagflation fears. In the U.S., annual inflation hit 4.2% in May, its highest level in three years, according to CNBC. The reopening of the strait is expected to ease supply constraints and lower energy costs, providing relief to markets and consumers. However, the full text of the agreement has not been released, and key issues remain unresolved.

The accord includes a 60-day ceasefire framework, during which both governments will continue negotiations over Iran's nuclear program and U.S. sanctions relief. These issues, widely seen as the most contentious in the conflict, were not settled in the current deal. Iran has not yet issued a public statement confirming the agreement, and the New York Times reported that the full text is still under wraps.

By the numbers
4.2%
US annual inflation in May
June 19
Ceasefire signing date
188,000
OPEC+ quota increase (bpd) for July
33.19M
Actual OPEC+ output (bpd) during blockade

The deal nearly stalled as Israel continued its attacks on Lebanon, drawing public criticism from Trump. Israel, which was not a direct party to the US-Iran negotiations, has stated it will continue operations if Hezbollah attacks its territory. It remains unclear whether Israel has agreed to stand down in Lebanon, adding uncertainty to the region's stability.

For financial advisors, the reopening of the Strait of Hormuz could have significant implications for client portfolios. Energy prices, which had spiked during the blockade, may see a correction. The OPEC+ decision to lift quotas by 188,000 barrels per day for July had been overshadowed by the blockade, which kept actual output at 33.19 million bpd. With the strait open, actual production could rise, potentially easing inflationary pressures.

Advisors should also monitor the ongoing nuclear talks and sanctions negotiations, which could introduce new volatility. The unresolved status of these talks means that geopolitical risks remain elevated. For now, the ceasefire provides a temporary reprieve, but the underlying tensions between the U.S. and Iran are far from resolved.

In the broader context, the conflict had already impacted consumer finances. A recent survey on national debt relief found that 88% of clients were hit by rising fuel costs, and 56% cited money as a top relationship strain. The reopening of the strait may help alleviate some of these pressures, but advisors should remain cautious about the potential for renewed disruptions.

CM
About the author

Carlos Mendoza

Markets Editor · Miami

Equities, ETFs, fixed income, alts. Worked the buy-side before the press box.

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