Wall Street Rallies as US-Iran Deal Triggers Oil Slump and AI Surge

Global financial markets surged on Monday following a tentative agreement between the United States and Iran to extend a ceasefire and reopen the Strait of Hormuz. This geopolitical breakthrough has sparked a massive rally across major indices, driven by falling energy costs and renewed investor confidence in the technology sector.

Oil Prices Tumble on De-escalation Hopes

The most immediate market reaction came from the energy sector, where Brent crude prices plummeted by 4.8% to $83.18 a barrel. This sharp decline brings oil prices back to levels seen in early March, significantly lower than the $100-plus peaks witnessed just weeks ago.

The potential reopening of the Strait of Hormuz is expected to restore the flow of crude oil, offering much-needed relief to global supply chains. While Iran has confirmed the agreement, formal implementation is pending a signing scheduled for Friday in Switzerland. Although industry observers warn that normalizing energy flows could take months, the immediate reduction in energy costs is expected to ease inflationary pressures on food, fuel, and fertilizer.

Travel and AI Stocks Lead the Bull Run

As fuel prices retreated, companies with high energy sensitivities saw significant gains. In the travel sector, American Airlines climbed 7%, Carnival rose 5.7%, and United Airlines gained 5.2%.

Simultaneously, the artificial intelligence (AI) sector regained momentum after recent volatility. Semiconductor giants led the charge, with Micron Technology jumping 7.8% and Advanced Micro Devices (AMD) rising 7%. Nvidia also advanced 2.7%, exerting a heavy influence on the S&P 500 due to its significant index weighting. A major highlight was SpaceX, which climbed 5.4% in its second day of trading on Wall Street, boasting a massive valuation of over $2.1 trillion—surpassing the combined value of Exxon Mobil, Bank of America, and Coca-Cola.

Shifting Expectations for US Interest Rates

The geopolitical easing has also sent ripples through the bond market, as lower oil prices reduce the fear of persistent inflation. The yield on the 10-year Treasury note eased to 4.45% from 4.48%.

Crucially, the likelihood of further interest rate hikes by the US Federal Reserve has diminished. Before the deal, markets had priced in a high probability of a rate hike; however, following the news, traders have slashed the probability of a rate increase this year from 71% to just 55%, according to CME Group data. This shift provides a more favorable backdrop for the Federal Reserve's upcoming policy decision under new chair Kevin Warsh.

Global Market Synchrony

The rally was not confined to New York. In Asia, Japan's Nikkei 225 surged 5% to reach a record high, while South Korea's Kospi climbed 5.2%, bolstered by AI-related gains in firms like Samsung Electronics. This synchronized global upswing reflects a broad-based appetite for risk as Middle East tensions appear to subside.

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