U.S. Stocks Rally on Iran Deal and Chip Gains

Key takeaways
- On June 18, 2026, the Nasdaq composite rose 1.9% and the S&P 500 and Dow gained nearly 1% as semiconductor shares advanced and optimism grew over a U.S.-Iran interim pact lowering oil prices.
AI insight — what it means
Positive developments around a U.S.-Iran agreement are helping push major stock indexes higher, especially technology-related shares. Lower oil prices from the deal can reduce costs for businesses and support broader market gains.
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