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High Impact

S&P 500 and Nasdaq Rise on U.S.-Iran Deal Optimism

📅
🏷Markets
📰via MarketWatch
✍️Edited by Luís Barata

The S&P 500 and Nasdaq opened higher amid optimism surrounding a potential U.S.-Iran deal, which could ease geopolitical tensions and foster a more stable economic environment. This sentiment is primarily transmitted through improved risk appetite, as investors anticipate reduced uncertainty that could benefit equities. The S&P 500 and Nasdaq are particularly exposed, given their sensitivity to shifts in market sentiment and global stability. Traders will be closely watching any developments or announcements regarding the negotiations, as these could significantly impact market dynamics and investor confidence.

Source: Originally reported by MarketWatch at May 27, 2026. Summary and market context by Trading News Terminal editorial.

About NDX

The Nasdaq-100 (NDX) is the US large-cap tech benchmark. NDX is more sensitive to rate decisions than SPX because of longer-duration cash flows, and heavily concentrated in Tech/Comms names — mega-cap earnings season dominates price action.

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