证券研究报告 | 策略点评 2026 年 02 月 27 日 投资要点 分析师：孟之绪 执业编号：S0300524080001 电话： 邮箱：mengzhixu@ykzq.com 投资策略研究 指数涨跌情况：今日 A 股主要指数涨跌不一。截止收盘，沪指上涨 0.39%，收 报 4162.88 点；深证成指跌 0.06%，收报 14495.09 点；创业板指跌 1.04%， 收报 3310.3 点；科创 50 指数涨 0.15%，收报 1488.02 点。总体上，全天个股 涨多跌少，Wind 数据显示，全市场 3267 只个股上涨，2066 只个股下跌，146 只个股收平。沪深两市今日成交额合计 24880 亿元，较上个交易日缩量 504 亿元。 行业涨跌情况：今日申万一级行业涨多跌少，钢铁、煤炭、有色金属、公用 事业、农林牧渔等行业领涨，涨幅分别为 3.37%、3.20%、3.10%、2.27%、2.06%， 建筑材料、通信、电子、汽车、家用电器等行业领跌，跌幅分别为 1.45%、1.38%、 0.71%、0.41%、0.39%。 概念板块涨跌情况：今日涨幅居前的概念板块为稀有金属精选、稀土、培育 钻石、小金 ...

Market Overview - The A-share market showed a mixed performance today, with major indices mostly closing higher. The Shanghai Composite Index rose by 0.05% to close at 4085.77 points, while the Shenzhen Component increased by 0.06% to 14030.56 points. The ChiNext Index saw a gain of 0.31%, closing at 3329.69 points. Overall, there were 2164 stocks that rose, 3188 that fell, and 107 that remained unchanged. The total trading volume in the Shanghai and Shenzhen markets reached 285.41 billion yuan, an increase of 47.6 billion yuan compared to the previous trading day [1][10]. Industry Performance - Among the Shenwan first-level industries, the sectors that performed well included Comprehensive, Coal, Electronics, and Communications, with increases of 3.86%, 2.47%, 1.25%, and 1.24% respectively. Conversely, the sectors that experienced declines were Oil & Petrochemicals, Non-bank Financials, Beauty Care, Computers, and Banks, with decreases of 1.73%, 1.13%, 1.03%, 0.81%, and 0.72% respectively [1][10]. Concept Sector Performance - The concept sectors that saw the most significant gains today included Semiconductor Equipment, Lithography Machines, the SMIC International Supply Chain, Semiconductor Materials, Industrial Gases, Rare Earths, Semiconductor Wafers, CRO, Wafer Industry, Nuclear Fusion, Selected Coal Mining, Cobalt Mining, Optical Modules (CPO), National Big Fund, and Aquaculture [2].

Market Overview - The A-share market showed mixed performance today, with the Shanghai Composite Index down by 0.39% closing at 4002.76 points, the Shenzhen Component Index down by 1.03% at 13289.01 points, and the ChiNext Index down by 1.40% at 3134.32 points. Overall, 2784 stocks rose while 2500 fell, with a total trading volume of 19936 billion yuan, a decrease of 1809 billion yuan from the previous trading day [1][2]. Industry Performance - Among the Shenwan first-level industries, sectors such as retail, real estate, steel, basic chemicals, and agriculture showed positive growth, with increases of 1.43%, 0.81%, 0.62%, 0.61%, and 0.60% respectively. Conversely, industries like telecommunications, electronics, computers, coal, and defense showed declines, with decreases of 2.20%, 1.74%, 1.41%, 1.34%, and 1.18% respectively [1][2]. Concept Sector Performance - The leading concept sectors today included cultivated diamonds, superhard materials, lithium battery electrolytes, germanium-gallium-antimony inks, calcium titanate batteries, HJT batteries, BC batteries, SPD, Pinduoduo partners, TOPcon batteries, dairy industry, cross-strait integration, high turnover, energy exports, and PEEK materials [2].

Market Overview - The A-share market showed a mixed performance today, with the Shanghai Composite Index rising by 0.22% to close at 3922.41 points, and the Shenzhen Component Index also increasing by 0.22% to 13025.45 points. However, the Sci-Tech 50 Index fell by 0.30% to 1401.26 points, while the ChiNext Index saw a slight increase of 0.09% to 3062.16 points. Overall, 2991 stocks rose, 2301 fell, and 143 remained unchanged, with a total trading volume of 16439 billion yuan, a decrease of 239.47 billion yuan from the previous trading day [1][2]. Industry Performance - Among the primary industries, coal, oil and petrochemicals, social services, non-ferrous metals, non-bank financials, and media sectors experienced the highest gains. Conversely, the telecommunications, real estate, building materials, electronics, pharmaceutical biology, and national defense industries faced the most significant declines [1][2]. Sector Highlights - The leading sectors in terms of growth included ice and snow tourism, lithium mining, central enterprise coal, near-term new stocks, short drama games, lithium extraction from salt lakes, quantum technology, selected chemical fibers, cybersecurity, operating systems, cross-strait integration, selected coal mining, Kimi, aluminum industry, and lithium battery electrolyte sectors [2].

Market Overview - The A-share market showed a positive trend today, with major indices mostly rising. The Shanghai Composite Index increased by 0.63% to close at 3863.89 points, while the Shenzhen Component rose by 0.98% to 12813.21 points. The ChiNext Index saw a gain of 1.98%, closing at 2993.45 points. Overall, 4064 stocks rose, 1248 fell, and 121 remained unchanged. The total trading volume in the Shanghai and Shenzhen markets was 17376 billion, a decrease of 2005.11 million from the previous trading day [1][2]. Industry Performance - Among the Shenwan first-level industries, sectors such as telecommunications, coal, power equipment, machinery, electronics, and transportation showed significant gains. Conversely, industries like non-ferrous metals, agriculture, beauty care, food and beverage, and banking experienced declines [1][2]. Concept Sector Performance - The top-performing concept sectors today included cultivated diamonds, superhard materials, optical modules (CPO), lithium battery electrolytes, selected coal mining, aviation transportation, germanium-gallium-antimony ink, optical chips, optical communications, ice and snow tourism, oil and gas extraction, RF and antennas, 6G, and natural gas [2].

Market Overview - The A-share market saw most major indices decline today, with the Shanghai Composite Index down 0.18% closing at 3821.83 points, and the Shenzhen Component Index down 0.29% closing at 13119.82 points. The ChiNext Index increased by 0.21% to close at 3114.55 points. Overall, 4264 stocks fell while 1107 stocks rose, with a total trading volume of 24944 billion yuan, an increase of 3729 billion yuan compared to the previous trading day [1][2]. Industry Performance - Among the Shenwan first-level industries, only five sectors including banking, coal, electric equipment, public utilities, and home appliances saw gains, while the rest experienced declines. The sectors that led the decline included social services, retail, computer, comprehensive, steel, and pharmaceutical biology [1][2]. Sector Highlights - The top-performing concept sectors today included semiconductor equipment, semiconductor silicon wafers, advanced packaging, central enterprise banks, photolithography machines, the SMIC industrial chain, EDA, selected banks, Moore Threads, selected central enterprise coal, semiconductor industry, semiconductor materials, the National Big Fund, selected coal mining, and photovoltaic inverters [2].

Market Overview - The A-share market showed mixed performance today, with the Shanghai Composite Index rising by 0.21% to close at 3387.57 points, while the Shenzhen Component Index increased by 0.44% to 10294.22 points. The ChiNext Index fell by 0.22% to 995.49 points, and the Growth Enterprise Market Index rose by 0.83% to 2065.39 points. Overall, there were more decliners than advancers, with 3599 stocks declining and 1615 stocks advancing across the market. The total trading volume in the Shanghai and Shenzhen markets reached 11734 billion yuan, an increase of 37.64 billion yuan compared to the previous trading day [1]. Industry Performance - Among the primary industries, coal, non-ferrous metals, electric equipment, banking, pharmaceutical biology, and transportation sectors led the gains, while beauty care, electronics, media, social services, machinery equipment, and retail sectors experienced declines [1]. - The top-performing concept sectors included gold and jewelry, selected air transport, power batteries, coal mining, central enterprise coal, lithium battery anodes, lithium iron phosphate batteries, solid-state batteries, sodium-ion batteries, complete vehicles, cobalt mines, battery recycling, new energy vehicles, germanium-gallium-antimony ink, and antibiotics [2].