Stock Market News, June 30, 2026: Nasdaq Advances, Climbs 21% for Quarter WSJStock market today: Dow hits record, S&P 500 jumps to cap best quarter since 2020 amid massive chip rally Yahoo FinanceS&P 500, Nasdaq register best quarter since 2020 despite Iran war ReutersStocks Notch Strongest Quarter Since 2020 The New York Times
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