上海发布楼市“沪七条”，建材板块受催化，建材ETF（159745）大涨超4%，盘中净流入近2亿份

Group 1 - The core viewpoint of the news is that the construction materials sector is experiencing increased investment interest, driven by policy adjustments in the real estate market and improving supply-demand dynamics [1][3]. - The Shanghai Municipal Housing and Urban-Rural Development Administration and four other departments have jointly issued a notice to further optimize and adjust the city's real estate policies, effective from February 26, 2026, which includes reducing housing purchase restrictions to promote better living conditions and meet residents' reasonable housing needs [1]. - The construction materials ETF (159745) saw a net inflow of 186 million shares, indicating strong capital interest in the sector [1]. Group 2 - On the supply side, the construction materials industry has seen increasing concentration, with the cement industry eliminating 16 million tons of capacity, and significant capacity reductions in glass, waterproofing, coatings, and tiles [1]. - On the demand side, the proportion of second-hand homes in property sales is expected to rise from 45% in 2021 to 70% by 2025, with the average age of homes increasing from 16 years to 21 years, indicating a potential for renovation demand [1]. - In specific segments, cement production control and carbon trading are expected to enhance price resilience during peak seasons, while the demand for renovation in consumer building materials is becoming more pronounced, with price increases already observed in waterproofing and gypsum board [1].