热门概念与行业机构参与情况跟踪（2026.01.26-2026.01.30）：黄金珠宝指数：个人：机构参与水平出现分化

Group 1: Key Insights on Popular Concepts - The PEEK Materials Index, Machine Vision Index, and High Transfer Expectation Index have the highest institutional participation rates, with the PEEK Materials Index reaching its highest level in nearly 20 weeks at 9.07% [8][17] - The GPU Index, ASIC Chip Index, and Semiconductor Equipment Index show the highest growth rates in institutional participation, while the Aviation Transport Selected Index, Huawei Harmony Index, and Influenza Index have seen the largest declines in institutional participation [14][17] - The Gold and Jewelry Index, Rare Earth Permanent Magnet Index, and Aviation Transport Selected Index exhibit significant divergence between individual and institutional participation, with a notable decrease in individual participation in the Gold and Jewelry Index on January 30, 2026 [17] Group 2: Industry Participation Insights - The Mechanical, Electronic, and Light Industry Manufacturing sectors have the highest institutional participation rates, while the Oil and Petrochemical, Transportation, and Pharmaceutical sectors have seen the largest declines in participation [2][21] - The Electronic, Building Materials, and Basic Chemical sectors show the highest growth rates in institutional participation, contrasting with the declines in Oil and Petrochemical, Transportation, and Pharmaceutical sectors [23][22] - The Oil and Petrochemical, Coal, and Media sectors have the highest levels of divergence between individual and institutional participation [25]