行业比较周跟踪（20251115-20251121）：A股估值及行业中观景气跟踪周报-20251123

Valuation Summary - The overall valuation of A-shares as of November 21, 2025, shows the CSI All Share (excluding ST) with a PE of 20.6x and a PB of 1.7x, positioned at the 74th and 36th historical percentiles respectively [2][5] - The Shanghai 50 Index has a PE of 11.9x and a PB of 1.3x, at the 64th and 43rd percentiles [2][5] - The ChiNext Index has a PE of 37.7x and a PB of 4.9x, at the 27th and 51st percentiles, indicating a relatively high valuation compared to historical data [2][5] - The STAR 50 Index shows a significantly high PE of 145.1x and a PB of 5.7x, at the 95th and 60th percentiles, suggesting extreme valuation levels [2][5] Industry Valuation Comparison - Industries with PE valuations above the 85th percentile include Real Estate, Retail, and IT Services (Software Development) [2][7] - Industries with PB valuations above the 85th percentile include Electronics (Semiconductors) and Communications [2][7] - The Medical Services industry is noted for having both PE and PB valuations below the 15th percentile, indicating potential undervaluation [2][7] Industry Sentiment Tracking New Energy - The photovoltaic industry is experiencing a decline in spot prices, with upstream polysilicon futures prices increasing by 7.8%, while the average price of silicon wafers decreased by 0.9% [2][3] - Battery materials such as lithium hexafluorophosphate have seen a significant price increase of 15.4%, with a cumulative rise of nearly 180% over the past quarter [2][3] Real Estate Chain - The price of rebar increased by 0.6%, while cement prices have stabilized with a 0.4% increase in the national cement price index [2][3] - Glass prices have shown volatility, with a 3.9% decrease in spot prices, indicating a challenging market environment [2][3] Consumer Sector - The average price of live pigs has decreased by 0.8%, reflecting ongoing pressures in the agricultural sector [2][3] - The aviation sector has shown recovery, with a year-on-year increase of 8.9% in passenger turnover for October 2025 [2][3] Technology and TMT - The domestic integrated circuit and optoelectronic device production increased by 10.2% year-on-year from January to October 2025, indicating growth in the technology sector [2][3] - The export value of optical communication modules has decreased by 16.9%, reflecting challenges in the international market [2][3] Commodities - The price of Brent crude oil has decreased by 2.8%, closing at $62.51 per barrel, indicating fluctuations in the energy market [2][3] - The Baltic Dry Index (BDI) increased by 7.1%, suggesting a rise in shipping demand [2][3]