Market Overview - The Shanghai Composite Index experienced a decline of 0.31%, closing at 4126.09, while the Shenzhen Component Index rose by 0.56% and the ChiNext Index increased by 0.82% [2][4] - The total trading volume in the Shanghai and Shenzhen markets reached 3.94 trillion, an increase of 290.4 billion compared to the previous trading day, marking the third consecutive day above 3.5 trillion [1][4] Sector Performance - The AI application sector saw significant gains, with over 20 stocks hitting the daily limit, including Liou Co., which achieved six consecutive limit-ups in nine days, and other notable performers like Shengguang Group and Xinhua Net [1][4] - The semiconductor sector also performed well, with stocks like Yaxin Integration hitting historical highs [1] - Conversely, sectors such as energy metals, insurance, and banking faced declines, with lithium mining stocks like Guocheng Mining hitting the daily limit down [1][4] Technical Analysis - The market showed strong bullish momentum in the morning, but faced a quick downturn in the afternoon due to news regarding margin requirements, which increased from 80% to 100% [4] - Despite the fluctuations, the overall trend remains bullish, with the market expected to continue upward as long as new highs are being set [4][11] Investment Opportunities - The tungsten sector is highlighted as a strong performer, with prices increasing over 60% in the past month, indicating potential for mining companies to realize significant profits [17] - Specific stocks in the tungsten sector are noted for their potential to catch up with rising tungsten prices, suggesting a buying opportunity [17][20]