In 2025, the A-share market presents a clear structural trend, with sectors such as technology, new energy, and military industry performing remarkably well. Through this wave of gains, we can observe several distinct industry logic lines.

**Concept-driven** stocks dominate the top of the gainers list. Shuwei New Materials ranks first with a 1820.29% increase, driven by rumors of entry into robotics, which directly ignited market enthusiasm, though whether cross-industry integration can truly materialize remains to be seen. Tianpu Co., Ltd. is also notable, with a 1645.35% rise, fueled by expectations for the combination of new energy vehicle components and AI chips. However, stocks driven by short-term factors often have lagging performance and higher volatility risks.

**Fundamentally supported** stocks are even more worth paying attention to. Shenghong Technology, as an AI PCB hidden champion, increased by 586.02%. The underlying logic is the actual order growth driven by AI computing power explosions—this dual rise in stock price and performance is more reliable in the long term. Similar stories are seen in the optical module sector: Zhongji Xuchuang rose by 538.79%, as demand for high-speed optical modules surges, with continuous growth in delivery volumes of 800G/1.6T specifications, and its position as the global leader provides solid support for its stock price. Changxin Bochuang followed closely with a 412.36% increase, reflecting the prosperity of the optical communication sector.

**Domestic substitution** remains active. Feiwo Technology broke international monopoly with自主研发 of ultra-high-strength bolts, pushing its stock up by 581.66%; Hengbo Co., Ltd., as a pioneer in PEEK domestic substitution, increased by 527.03%, having established partnerships with leading automakers like BYD and NIO, securing a stable position in the industry chain. PCB-related stocks Dingtai Gaoke (up 567.15%) and Suda Weige (up 385.21%) benefited from dual demands of AI server upgrades and consumer electronics recovery.

Straits Innovation, with a 429.23% increase, reflects new opportunities in data industry through its role as a smart city service provider and participation in the construction of the Pingtan Cross-Strait Intelligent Computing Center.

**Key reminder**: Some stocks with high gains are indeed driven by concept speculation or short-term events, and the downside risks of such targets should also be carefully considered. Investment decisions should not only focus on the percentage gains but also have a clear understanding of the fundamentals, valuation levels, and industry prospects of the targets. Proceed cautiously based on your risk tolerance. Data is as of the end of 2025, and subsequent market trends require ongoing monitoring.