美股三大指数涨跌不一，IBM跌超7%

Market Overview - The three major U.S. stock indices showed mixed results, with the Dow Jones down 0.03%, the Nasdaq up 0.02%, and the S&P 500 up 0.07% [1] Company Performance - Tesla's stock fell over 4% as the company reported a 37% year-over-year decline in net profit for the third quarter [1] - Beyond Meat, the first publicly traded plant-based meat company, saw its stock drop over 17% [1] - IBM's stock decreased by more than 7% [1] Quantum Computing Sector - The quantum computing sector experienced a broad increase, with IonQ rising 9.5%, Rigetti Computing up 10.34%, D-Wave Quantum increasing by 16%, and Quantum Computing up 12% [2] - Multiple U.S. quantum computing companies are reportedly in talks with the U.S. Department of Commerce to replicate the "Intel model" by exchanging equity for federal funding support [2] AI Trading Competition - In a live trading competition organized by the U.S. AI research lab nof1.ai, two Chinese models outperformed others, with Alibaba's Qwen model achieving a total portfolio value of $13,700 and a return rate exceeding 37% [3] - The second-ranked model, DeepSeek, had a portfolio value close to $1.24 million and a return rate of approximately 24% [3] - All four U.S. AI models reported losses, with GPT-5 showing the worst performance, leaving only $2,761 in its account [3] Volvo Cars Performance - Volvo Cars' stock surged over 30% following the release of better-than-expected third-quarter profits [4] - The company reported revenues of 6.4 billion Swedish Krona (approximately $680 million) for the July to September period, exceeding analyst expectations and last year's revenue of 5.8 billion Krona [4] - The positive performance was attributed to an ongoing cost-saving plan worth 18 billion Swedish Krona and several one-time projects [4]