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Stocks Surge as US-Iran Peace Deal Eases Inflation Fears

US stock indexes rallied sharply on Thursday following the announcement of a peace deal between the United States and Iran, easing geopolitical tensions and inflation fears. The S&P 500 closed up 1.08%, while the tech-heavy Nasdaq 100 surged 2.48%.

June 18, 2026
2 min read
Source: Barchart
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Key Numbers

sp500 change
+1.08%
dow change
+0.14%
nasdaq100 change
+2.48%
sp futures change
+1.15%
nasdaq futures change
+2.48%

US stock indexes rallied sharply on Thursday following the announcement of a peace deal between the United States and Iran, easing geopolitical tensions and inflation fears. The S&P 500 closed up 1.08%, while the tech-heavy Nasdaq 100 surged 2.48%.

Reasons for the Move

The sharp rally came after reports of a historic peace agreement between the US and Iran, removing one of the biggest sources of geopolitical uncertainty in markets. Investors anticipated that the deal would lower oil prices and ease inflationary pressures, boosting risk appetite.

Sector Performance

Technology stocks led the gains, with the Nasdaq 100 rising 2.48%. Energy stocks also posted notable gains despite lower oil prices, with Exxon Mobil (XOM) and Chevron (CVX) both rising over 1%.

Context

The rally follows a period of market volatility due to US-Iran tensions. Markets had declined in previous days amid fears of military escalation. The agreement represents a significant positive shift, boosting optimism about market stability.

What It Means for Investors

While the deal reduces geopolitical and inflation risks, investors should remain cautious about future developments. The agreement may lead to a rotation into riskier assets, but other factors such as central bank policies continue to influence markets.

Frequently Asked Questions

Stocks rallied after a US-Iran peace deal was announced, easing geopolitical tensions and inflation concerns.

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This article was rewritten in Wrqti's editorial style based on information from the original source above. Content is informational only — not investment advice.