A股TTM、全动态估值全景扫描：A股估值扩张，通信行业领涨

Core Insights - The overall valuation of A-shares has expanded this week, with the communication industry leading the gains. The opening of the channel for computing chips from the US to China, combined with the continuous development of downstream AI models and applications, has kept the computing and its upstream communication equipment in high demand, resulting in a significant rise in the communication equipment sector. The current historical percentile of the full dynamic PE for the communication equipment secondary industry has reached 79.8%, indicating a high level [1][8]. Valuation Overview - The overall PE (TTM) of A-shares increased from 20.68 times last week to 21.08 times this week, while the PB (LF) rose from 1.69 times to 1.74 times [10]. - The overall full dynamic PE of key A-share companies increased from 13.66 times to 13.90 times this week [12]. Sector Valuation Details - The PE (TTM) of the ChiNext board rose from 68.20 times to 71.57 times, while the PB (LF) increased from 3.83 times to 4.04 times [19]. - The PE (TTM) of the Sci-Tech Innovation board increased from 215.04 times to 227.55 times, and the PB (LF) rose from 3.79 times to 4.65 times [25]. - The relative PE (TTM) for computing infrastructure, excluding operators/resource categories, increased from 4.54 times to 4.87 times, and the relative PB (LF) rose from 2.84 times to 4.09 times [27]. Industry Valuation Levels - From a static PE (TTM) perspective, industries such as consumer discretionary and consumer staples are overvalued, while essential consumer and resource sectors are undervalued. In primary industries, computer, textile and apparel, and construction materials are overvalued, while steel and real estate are undervalued [2]. - In terms of PB (LF), consumer discretionary and resource sectors are overvalued, while essential consumer sectors are undervalued. In primary industries, automotive and electronics are relatively high, while construction decoration, agriculture, forestry, animal husbandry, and construction materials are undervalued [2]. - The full dynamic PE indicates that consumer discretionary and financial services are relatively high, while essential consumer and resource sectors are undervalued. In primary industries, real estate and computers are relatively high, while food and beverage and social services are undervalued [2]. Comparative Analysis - Current industries such as communication, non-ferrous metals, oil and petrochemicals, public utilities, and agriculture exhibit characteristics of low valuation and high profitability [2]. - Industries like construction materials, power equipment, non-ferrous metals, basic chemicals, media, and automotive show both low valuation and high performance growth [2]. Market Comparison - The A-share non-financial ERP decreased from 1.33% last week to 1.20% this week, and the equity-debt yield spread fell from 0.11% to 0.00% [3][67]. - The full dynamic ERP for key non-financial A-share companies decreased from 3.77% to 3.57% [71].