市场环境因子跟踪周报（2025.11.05）：市场情绪仍偏高，警惕高位股调整风险-20251105

• The report covers the period from October 27, 2025, to October 31, 2025[2][11] - The market sentiment remains high, with a potential shift towards small-cap stocks due to valuation pressures and performance verification issues in large-cap growth stocks[3][11] - Market style trends indicate a preference for small-cap and value stocks, with decreased volatility in both large-cap vs. small-cap and value vs. growth styles[12][14] - Market structure shows an increase in industry excess return dispersion, a decrease in industry rotation speed, and a decline in the proportion of rising constituent stocks[12][14] - Trading concentration has decreased, with the top 100 stocks' trading volume share declining and the top 5 industries' trading volume share remaining stable[12][14] - Market activity has seen an increase in volatility and mixed performance in turnover rates[13][14] - Commodity market trends show an increase in trend strength for non-ferrous metals and energy chemicals, a decrease in basis momentum across all sectors, and an increase in volatility except for agricultural products[26][33] - Option market analysis indicates stable implied volatility levels for SSE 50 and CSI 1000, with an increase in put option skewness and a decrease in call option skewness for CSI 1000, suggesting heightened risk hedging by market participants[37][38] - Convertible bond market shows a slight recovery, with stable and rising premium rates for bonds convertible at par and a rebound in the proportion of low premium convertible bonds[39][41]