本周热度变化最大行业为传媒、计算机：市场情绪监控周报（20260112-20260116）-20260118

• The report introduces a "Total Heat Indicator" for monitoring market sentiment, which aggregates the heat indicators of individual stocks within broad-based indices, industries, and concepts[10][11] - The "Total Heat Indicator" is defined as the sum of the browsing, self-selection, and click counts of a stock, normalized by its market share on the same day, and then multiplied by 10,000, with a value range of [0,10000][10] - The report constructs a simple rotation strategy based on the weekly heat change rate (MA2) of broad-based indices, buying the index with the highest heat change rate at the end of each week, and staying out of the market if the "Others" group has the highest change rate[16][18] - The rotation strategy based on the heat change rate (MA2) of broad-based indices has an annualized return of 8.74% since 2017, with a maximum drawdown of 23.5%, and a return of 2.1% in 2026[19] - The report also constructs two simple portfolios based on the heat change rate of concepts, selecting the top 10 and bottom 10 stocks by total heat within the top 5 concepts with the highest heat change rate each week, and holding them equally[35] - The "BOTTOM" portfolio of low-heat stocks within high-heat concepts has historically achieved an annualized return of 15.71% with a maximum drawdown of 28.89%[37]