11月建筑景气环比改善，建议关注高景气板块

Investment Rating - The report maintains an investment rating of "Leading the Market - A" for the construction industry [6]. Core Insights - The construction industry showed a month-on-month improvement in November, with the business activity index rising to 49.6%, an increase of 0.5 percentage points from the previous month. The business activity expectation index reached 57.9%, up by 1.9 percentage points [1][17]. - The government has allocated 700 billion yuan and 800 billion yuan in special bonds for hard investment projects in the past two years, supporting significant infrastructure developments [2][18]. - The "14th Five-Year Plan" emphasizes expanding domestic demand, with infrastructure investment expected to play a stabilizing role in economic operations [3][19]. - The report suggests focusing on high-prosperity sectors such as overseas construction, western region development, and cleanroom engineering, which are expected to maintain strong demand and performance [3][11]. Summary by Sections Industry Dynamics - The construction industry's business activity index improved to 49.6% in November, indicating a recovery in the sector. The overall economic climate remains stable, with the manufacturing PMI at 49.2% [1][17]. - Significant investments in infrastructure are being driven by government initiatives, including the construction of urban underground pipelines and major transportation projects along the Yangtze River [2][18]. Market Performance - The construction industry saw a weekly increase of 2.81%, with the decoration and renovation sector performing particularly well [20][22]. - The report highlights that 82.32% of companies in the construction sector experienced stock price increases, with notable performers including Guo Sheng Technology and Shenghui Integration [22][23]. Key Investment Targets - Recommended companies include China State Construction, China Communications Construction, and China Railway Construction, which are expected to benefit from improved fundamentals and government support [11][13]. - The cleanroom engineering sector is highlighted for its continued high demand, with companies like Yaxiang Integration and Shenghui Integration poised for growth due to increased orders and overseas business expansion [12][13]. Valuation Metrics - The construction and decoration industry has a current P/E ratio of 12.41 and a P/B ratio of 0.82, indicating relatively low valuations compared to other sectors [25]. - The report identifies several companies with low P/E ratios, such as Shandong Road and Bridge (4.08) and China State Construction (4.81), suggesting potential investment opportunities [25][29].