市场情绪监控周报（20251020-20251024）：本周热度变化最大行业为煤炭、石油石化-20251027

• The report introduces a "Total Heat Index" indicator, defined as the sum of browsing, self-selection, and click counts for individual stocks, normalized by their market share on the same day, and multiplied by 10,000, with a value range of [0,10000][7] - A rotation strategy is constructed based on weekly heat index change rates (MA2), where the strategy buys the index with the highest heat change rate at the end of each week, or stays in cash if the "Others" 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 2025 return of 38.5%[13][16] - A concept-based strategy is developed by selecting the top 5 concepts with the highest heat change rates weekly, forming a stock pool by excluding the bottom 20% of stocks by market cap, and constructing two portfolios: "TOP" (top 10 stocks by heat index) and "BOTTOM" (bottom 10 stocks by heat index). The BOTTOM portfolio historically achieved an annualized return of 15.71%, with a maximum drawdown of 28.89%, and a 2025 return of 42.2%[31][34]