1月15日主题复盘 | 市场大幅缩量，光刻胶、半导体强势，锂电池反弹

Market Overview - The Shanghai Composite Index experienced fluctuations throughout the day, while the ChiNext Index rebounded after hitting a low. Semiconductor stocks strengthened in the afternoon, with photolithography machines and photoresists leading the gains, resulting in multiple stocks like Tongcheng New Materials and Kangqiang Electronics hitting the daily limit. The tourism sector was active, with stocks like Zhongxin Tourism and Shaanxi Tourism also reaching the daily limit. The non-ferrous metals sector saw gains, with stocks like Zinc Industry and Luoping Zinc Electric hitting the daily limit. Overall, more stocks declined than rose, with over 3,100 stocks in the Shanghai and Shenzhen markets in the red, and today's trading volume decreased by over 1 trillion to 2.94 trillion [1]. Hot Topics Photolithography Resins - The photolithography resin sector saw significant gains today, with stocks like Tongcheng New Materials, Baiao Chemical, and Dongcai Technology hitting the daily limit, while Su Da Weige and Shanghai Xinyang saw increases of over 15%. According to Frost & Sullivan, the domestic photolithography resin market is expected to reach 15.03 billion yuan by 2028, with a compound annual growth rate of 18.5% [4][5]. Lithium Batteries - The lithium battery sector rose today, with Lingpai Technology increasing by over 18%, and stocks like Keheng Co., Xianhui Technology, and Honggong Technology rising by over 10%. Tianfeng Securities predicts that the demand for power and energy storage batteries will reach 1,872 GWh and 2,236 GWh in 2025 and 2026, respectively, with year-on-year growth of 45% and 25% [6][7]. Domestic Chips - The domestic chip sector performed well today, with stocks like Sanfu Co., Unisoc, Wenkai Co., and Kangqiang Electronics hitting the daily limit. TSMC's latest quarterly results showed a significant increase in AI chip demand, with a 35% year-on-year growth in net profit for Q4 2025. TSMC expects sales in Q1 2026 to be between $34.6 billion and $35.8 billion, exceeding market expectations of $33.22 billion [9][10][11]. Longxin Technology - Longxin Technology has received IPO acceptance, being the fourth-largest DRAM manufacturer globally and the largest in China. The company plans to raise 29.5 billion yuan for production line upgrades and next-generation technology development, with expectations to complete most equipment installations by the end of 2027, which may boost domestic equipment demand and market share [12].