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S&P 500, Nasdaq Hit Record Highs as Extended US-Iran Ceasefire Lifts Wall Street

New York, 29 May 2026 – Wall Street’s rally gathered pace as the S&P 500 and Nasdaq closed at record highs, supported by reports that the United States and Iran had reached a draft agreement to extend their ceasefire, easing immediate concerns over energy-market disruption and lifting investor appetite for risk assets.

The rally reflected a sharp improvement in market sentiment after weeks of volatility linked to the Gulf conflict, oil-price swings and inflation fears. Investors have been closely watching whether diplomatic progress between Washington and Tehran can reduce the risk premium in crude oil and stabilise expectations around US interest rates.

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Author

  • Tim Clark is a Senior Geopolitical Analyst for The Ledger Asia, specializing in the intersection of international relations and market stability. With over a decade of experience, Tim provides deep-dive insights into Indo-Pacific security, global supply chain resilience, and the strategic competition between major powers.

    Previously a consultant for leading international think tanks, he focuses on how shifting diplomatic landscapes and maritime disputes impact corporate governance and trade policy. At The Ledger Asia, Tim’s analysis equips readers with the clarity needed to navigate the complex regulatory and economic environments of Southeast Asia and beyond.

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