本周热度变化最大行业为传媒、石油石化：市场情绪监控周报（20260105-20260109）-20260111

• 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. The indicator range is [0,10000][7] - A rotation strategy is constructed based on the weekly heat index change rate (MA2). At the end of each week, the strategy buys the broad-based index with the highest MA2 change rate. If the "Others" group has the highest change rate, the strategy remains in cash. The annualized return since 2017 is 8.74%, with a maximum drawdown of 23.5%. In 2026, the strategy achieved a return of 7.9%[13][16] - A concept-based strategy is developed by selecting the top 5 concepts with the highest weekly heat index change rate. Stocks within these concepts are filtered by excluding the bottom 20% in terms of market capitalization. Two portfolios are constructed: the "TOP" portfolio holds the top 10 stocks with the highest heat index within each concept, while the "BOTTOM" portfolio holds the bottom 10 stocks. The "BOTTOM" portfolio historically achieved an annualized return of 15.71% with a maximum drawdown of 28.89%. In 2026, the "BOTTOM" portfolio returned 6.4%[32][34]