市场情绪监控周报（20251013-20251017）：本周热度变化最大行业为煤炭、有色金属-20251019

• The report introduces a "Total Heat Indicator" as a proxy variable for tracking market sentiment heat. It is calculated by summing the browsing, self-selection, and click counts of individual stocks, normalized by their market share on the same day, and multiplied by 10,000. The indicator's range is [0,10000][7] - A "Broad-based Index Heat Rotation Strategy" is constructed based on the weekly heat change rate (MA2) of major broad-based indices. The strategy involves buying the index with the highest heat change rate at the end of each week, or staying out of the market if the "Other" group has the highest rate. The strategy achieved an annualized return of 8.74% since 2017, with a maximum drawdown of 23.5%, and a return of 33.5% in 2025[12][15] - A "Concept Heat TOP and BOTTOM Portfolio" is developed by selecting the top 5 concepts with the highest heat change rates each week. Stocks are chosen from these concepts based on their total heat ranking, with the top 10 forming the TOP portfolio and the bottom 10 forming the BOTTOM portfolio. The BOTTOM portfolio historically achieved an annualized return of 15.71%, a maximum drawdown of 28.89%, and a return of 37.6% in 2025[30][32] - The report provides heat change rates for major broad-based indices, industries, and concepts. For broad-based indices, the highest heat change rate (MA2) was observed in CSI 2000 (+2.76%), while the lowest was in CSI 500 (-5.29%). For industries, the highest heat change rate was in coal (+69.7%), and the lowest was in media (-22.2%). For concepts, the top 5 with the highest heat change rates were genetically modified organisms (+124.5%), grain concepts (+107.7%), cultivated diamonds (+101), China-Korea Free Trade Zone (+93.2%), and soybeans (+88.4)[8][26][56][57] - The valuation monitoring section highlights the historical valuation percentiles of major broad-based indices and industries. CSI 300, CSI 500, and CSI 1000 indices are at 86%, 98%, and 92% of their rolling 5-year historical percentiles, respectively. Among industries, those above the 80% historical percentile include power equipment, electronics, banking, light manufacturing, computing, defense, pharmaceuticals, coal, building materials, and retail. Industries below the 20% historical percentile include agriculture, transportation, non-bank finance, food and beverage, comprehensive, and steel[40][41][43]