1分钟，直线涨停！寒潮来临，8股获资金大举买入

Market Overview - A-shares opened higher and experienced slight fluctuations, with major indices like the Shanghai Composite Index and Shenzhen Component Index alternating between red and green [1] - The number of rising stocks significantly outnumbered declining ones, and trading volume showed a moderate increase [1] Index Performance - Shenzhen Component Index: 14,230.97, down 0.17% [2] - Shanghai Composite Index: 4,110.86, down 0.15% [2] - ChiNext Index: 3,282.48, down 0.40% [2] - SSE 50 Index: 3,048.09, down 0.62% [2] - CSI 300 Index: 4,701.22, down 0.46% [2] - STAR 50 Index: 1,532.74, down 0.17% [2] - North Exchange 50 Index: 1,526.30, up 0.43% [2] - CSI 500 Index: 8,349.83, up 0.12% [2] Sector Performance - Defense and military, oil, glass fiber, and glyphosate sectors showed the highest gains [2] - Precious metals, electric grid equipment, medical beauty, and photolithography sectors experienced the largest declines [2] Oil and Gas Sector - The oil industry saw a strong performance, with oil service engineering leading the gains, and the sector index surged over 6%, reaching an 8-year high [4] - Natural gas prices soared due to a cold wave, with NYMEX natural gas prices increasing over 29% overnight and continuing to rise by over 9% [7] - Major stocks in the oil and gas sector, such as Intercontinental Oil and China Oilfield Services, saw significant net inflows of capital [6][7] Defense and Aerospace Sector - The defense and military sector rebounded strongly, with aerospace equipment leading the gains, and the sector index rose nearly 5% [9] - Key stocks like Yiatong and Changcheng Electric experienced rapid price increases, reaching their daily limit within minutes [9] - The industry is entering a new phase of high-quality development, driven by improved operational cash flow and profitability [12]