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[U.S. stock market's three major indexes open higher, Dow rises 500 points] The U.S. September unemployment rate increased, and the three major indexes of the U.S. stock market collectively opened higher. The Dow rose 500 points, the S&P 500 index increased by 1.5%, and the Nasdaq rose by 2.1%. NVIDIA climbed 4.6%, with strong performance in its third-quarter results. Google A rose 3.7%, as the Gemini 3 model set multiple benchmark testing records.