——金融工程量化月报20251201：市场情绪降温，基金抱团程度加强-20251201

• The "Market Sentiment Tracking" system includes the "Proportion of Rising Stocks Sentiment Indicator," which calculates the proportion of stocks with positive returns in the past N days within the CSI 300 Index. This indicator helps identify market sentiment by detecting market bottoms when the proportion increases and potential overheating when the proportion is high. However, it has limitations in avoiding market downturns and may miss gains during sustained market rallies[12][13][15] - The "Proportion of Rising Stocks Timing Strategy" applies two smoothing windows (N1=50, N2=35) to the sentiment indicator. When the short-term smoothed line exceeds the long-term smoothed line, it signals a bullish market view. Conversely, when the short-term line falls below the long-term line, it indicates a cautious market outlook[13][15][16] - The "Moving Average Sentiment Indicator" uses an eight-moving-average system (parameters: 8, 13, 21, 34, 55, 89, 144, 233) to assess the CSI 300 Index's trend. The indicator assigns values of -1, 0, or 1 based on the moving average range, correlating with the index's performance. A bullish signal is generated when the current price exceeds the moving average values for more than five of the eight averages[21][26] - The "PB-ROE-50 Strategy" is based on the PB-ROE pricing model and incorporates factors like SUE and ROE growth to identify stocks with expectation gaps. The strategy selects 50 stocks to form a portfolio, aiming to enhance returns by leveraging expectation differences and additional alpha factors[30][33][34] - The "Institutional Research Strategy" includes "Public Fund Research Stock Selection" and "Private Fund Research Tracking." These strategies utilize institutional research data, such as the number of times a company is researched and its pre-research performance relative to benchmarks, to identify alpha opportunities[37][39][40] - The "Leverage Ratio Negative List" introduces three leverage ratio metrics: traditional, strict, and relaxed. The relaxed leverage ratio includes additional liabilities like other current liabilities and non-current liabilities due within one year, providing more opportunities for short-selling gains compared to traditional metrics[42][43][45] - The "Financial Cost Burden Ratio" measures a company's interest payment pressure using the formula: Financial Cost Burden Ratio = Interest Expense / EBIT. This metric focuses on interest expenses post-2018, offering a clearer view of financial costs and identifying companies with high repayment pressure[46][47][48] - The "Proportion of Rising Stocks Sentiment Indicator" showed a slight month-on-month decline as of November 28, 2025, with a value above 50%, indicating cooling market sentiment[12] - The "Proportion of Rising Stocks Timing Strategy" indicated a cautious market view as the short-term smoothed line was below the long-term smoothed line in the past month[16] - The "Moving Average Sentiment Indicator" suggested the CSI 300 Index was in a non-prosperous sentiment zone as of November 28, 2025[21] - The "PB-ROE-50 Strategy" delivered negative excess returns in November 2025: -0.08% for the CSI 500 pool, -1.09% for the CSI 800 pool, and -3.26% for the entire market pool[30][34] - The "Institutional Research Strategy" showed mixed results in November 2025: the "Public Fund Research Stock Selection" achieved a 3.49% excess return relative to the CSI 800, while the "Private Fund Research Tracking" recorded a -1.36% excess return relative to the CSI 800[37][39]