Group 1 - The brain-computer interface sector experienced a decline of 3.34%, ranking among the top losers in the concept sector as of the market close on June 20 [1][2] - Within the brain-computer interface sector, major companies such as Hanwei Technology, Nanjing Panda, and Aipeng Medical saw significant declines, while only two stocks, Haige Communication and ST Huatuo, recorded gains of 1.46% and 1.05% respectively [1][2] - The sector faced a net outflow of 546 million yuan from main funds, with 23 stocks experiencing net outflows, and seven stocks seeing outflows exceeding 30 million yuan [2] Group 2 - Hanwei Technology led the outflow with a net withdrawal of 133 million yuan, followed by Innovative Medical and Tom Cat with outflows of 129 million yuan and 116 million yuan respectively [2][3] - The stocks with the highest net inflows included ST Huatuo, Haige Communication, and Lepu Medical, with inflows of 58.93 million yuan, 35.06 million yuan, and 23.44 million yuan respectively [2][3] - The trading volume for Hanwei Technology was 12.95%, indicating a high turnover rate despite the decline of 6.59% in its stock price [2][3]

Concept Performance - The PET copper foil concept saw a daily increase of 2.09%, while the combustible ice concept experienced a decline of 4.14% [1] - Other notable increases included photolithography at 1.45% and BC battery at 1.13%, while short drama games fell by 3.07% [1] Low-E Glass Concept - The Low-E glass concept had a net inflow of 0.45 billion yuan, with seven stocks receiving net inflows, led by Wanshun New Materials with 20.91 million yuan [1] - Key stocks in the Low-E glass concept included Wanshun New Materials, Hainan Development, and Qibin Group, with respective net inflows of 20.91 million yuan, 17.66 million yuan, and 13.23 million yuan [1] Stock Performance - As of June 20, the Low-E glass concept increased by 0.64%, ranking 10th among concept sectors, with Wanshun New Materials, Hainan Development, and Qibin Group leading the gains at 4.68%, 2.64%, and 1.62% respectively [3] - Decliners in the Low-E glass concept included XinSai Co., Sanxia New Materials, and AnCai High-Tech, with declines of 2.53%, 1.00%, and 0.22% respectively [3] Fund Flow Ratios - Fund inflow ratios were highest for Qibin Group, Wanshun New Materials, and Hainan Development, with net inflow rates of 11.05%, 7.29%, and 5.62% respectively [2][4] - Wanshun New Materials had a trading volume of 20.91 million yuan and a turnover rate of 7.81% [2]

Core Viewpoint - The perovskite battery concept has shown a positive performance with a 1.06% increase, ranking fourth among concept sectors, indicating growing investor interest and potential in this technology [1][2]. Market Performance - As of June 20, the perovskite battery sector saw 35 stocks rise, with notable performers including: - Keheng Co., Ltd. (科恒股份) reaching a 20% limit up - Saiwu Technology (赛伍技术) and GCL-Poly Energy (协鑫集成) also hitting the limit up - Jin Xin Nuo (金信诺) and Woge Optoelectronics (沃格光电) increasing by 6.43% and 4.18% respectively [1][2]. - The sector experienced a net inflow of 566 million yuan, with 31 stocks receiving net inflows, and 7 stocks exceeding 30 million yuan in net inflow [2]. Key Stocks and Their Performance - The top stocks in the perovskite battery sector based on net inflow and performance include: - Keheng Co., Ltd. (科恒股份): 20% increase, 2.51 billion yuan net inflow - GCL-Poly Energy (协鑫集成): 9.91% increase, 2.50 billion yuan net inflow - Saiwu Technology (赛伍技术): 10.04% increase, 963.47 million yuan net inflow - Jin Xin Nuo (金信诺): 6.43% increase, 581.85 million yuan net inflow [3][4]. Sector Comparison - The perovskite battery sector's performance is compared to other sectors, with notable increases in: - PET Copper Foil: 2.09% - Lithography Glue: 1.45% - BC Battery: 1.13% - Conversely, sectors like Combustible Ice and Brain-Machine Interface saw declines of -4.14% and -3.34% respectively [2].

Core Viewpoints - The A-share market experienced fluctuations with the Shanghai Composite Index rising by 0.21% to close at 3,387.57 points, the Shenzhen Component Index increasing by 0.44%, and the ChiNext Index up by 0.83%. The total trading volume in the A-share market was approximately 1.17 trillion RMB, with around 3,400 stocks declining. The coal and non-ferrous metals sectors led the gains, while the beauty and personal care sector lagged behind. Concept sectors such as graphite electrodes and recombinant protein saw significant increases [2][6] - In the Hong Kong market, the Hang Seng Index closed up by 0.62% and the Hang Seng Tech Index rose by 0.51%. Conversely, all three major U.S. stock indices closed lower, with the Dow Jones down by 1.91%, the S&P 500 down by 1.61%, and the Nasdaq down by 1.41%. Most European and Asia-Pacific markets saw gains [2][6] Important News - On May 21, the National Financial Supervision Administration and seven other departments issued measures to support financing for small and micro enterprises. These measures aim to improve the financing conditions for small businesses by enhancing regulatory, monetary, fiscal, and industrial policies. A total of 23 specific measures were proposed to increase financing supply, reduce overall financing costs, improve efficiency, and ensure precise support [3][7] - The spokesperson for the Ministry of Commerce commented on the U.S. attempt to globally ban advanced computing chips from China, including specific Huawei chips. The spokesperson criticized the U.S. actions as unilateral bullying and protectionism, which severely disrupts the global semiconductor supply chain and undermines the rights of other countries to develop advanced computing and AI technologies. The statement emphasized that any organization or individual assisting in the enforcement of U.S. measures may face legal consequences under Chinese law [4][8]

Market Performance - The Shanghai Composite Index closed at 3387.57, with a slight increase of 0.21% or 7.10 points [2] - The Shenzhen Component Index rose by 0.44%, closing at 10294.22, gaining 45.05 points [2] - The CSI 300 Index increased by 0.47%, closing at 3916.38, with a gain of 18.21 points [2] - The ChiNext Index saw a rise of 0.83%, closing at 2065.39, up by 16.93 points [2] - The STAR 50 Index decreased by 0.22%, closing at 995.49, down by 2.19 points [2] - The Beijing Stock Exchange 50 Index increased by 0.39%, closing at 1479.81, gaining 5.82 points [2] Sector Performance - The top-performing sectors included coal (2.55%), non-ferrous metals (2.05%), and electric power equipment (1.11%) [3] - The bottom-performing sectors included beauty care (-1.09%), electronics (-0.93%), and media (-0.87%) [3] - Concept sectors that performed well included graphite electrodes (2.57%), recombinant proteins (2.52%), and gold concepts (2.06%) [3] - Underperforming concept sectors included PEEK materials (-1.79%), camping economy (-1.56%), and WiFi 6 (-1.55%) [3] Market Outlook - The report indicates that the A-share market shows strong resilience and strategic determination, with the potential for further upward movement despite significant selling pressure above [5] - The report suggests a focus on sectors such as finance, public utilities, retail, food and beverage, non-ferrous metals, and TMT for investment opportunities [5] - The completion of the China-ASEAN Free Trade Area 3.0 negotiations is expected to enhance regional economic integration and supply chain connectivity [4]

Group 1 - The camping economy concept declined by 1.56%, ranking among the top declines in concept sectors as of the market close on May 21 [1][2] - Within the camping economy sector, notable declines were observed in companies such as C Taili, Lingnan Holdings, and Wanlima, while companies like Bear Electric, Beiding Co., and Jiuliang Co. saw increases of 7.40%, 1.06%, and 0.71% respectively [1][2] Group 2 - The camping economy sector experienced a net outflow of 549 million yuan in main funds, with 43 stocks seeing net outflows, and 7 stocks with outflows exceeding 30 million yuan [2] - The stock with the highest net outflow was Tailing, with a net outflow of 99.2 million yuan, followed by Dianguang Media, Nanji E-commerce, and Juxing Technology with outflows of 60.2 million yuan, 47.1 million yuan, and 43.0 million yuan respectively [2][3] - The stocks with the highest net inflows included Yutong Bus, Huabao New Energy, and Qujiang Cultural Tourism, with net inflows of 14.6 million yuan, 8.0 million yuan, and 3.8 million yuan respectively [2][4]

Group 1 - The graphite electrode concept sector increased by 2.57%, ranking first among concept sectors, with 17 stocks rising, including Ningxin New Materials which hit a 30% limit up, and Yong'an Pharmaceutical also hitting the limit up, while Dongfang Carbon, Xiangfenghua, and Better Ray saw increases of 11.54%, 5.78%, and 3.30% respectively [1][2] - The sector attracted a net inflow of 263 million yuan from main funds, with 10 stocks receiving net inflows, and 5 stocks seeing inflows exceeding 10 million yuan, led by Yong'an Pharmaceutical with a net inflow of 260 million yuan [2][3] - The top three stocks by net inflow ratio were Yong'an Pharmaceutical at 20.71%, China Baoan at 17.14%, and Xiangfenghua at 10.64% [3][4] Group 2 - The top performing stocks in the graphite electrode concept included Yong'an Pharmaceutical, with a daily increase of 10.00% and a turnover rate of 30.78%, followed by Daoshi Technology and Zhongke Electric with increases of 2.77% and 3.28% respectively [3][4] - The stocks with the largest declines included Fuan Co., which fell by 2.92%, and Guomin Technology and Shanshan Co., which decreased by 1.95% and 1.56% respectively [1][4] - The overall market performance showed a mixed trend, with several sectors experiencing declines, while the graphite electrode sector stood out with significant gains [2][3]

Group 1 - The supply and marketing cooperative concept index rose by 1.53%, ranking 7th among concept sectors, with 9 stocks increasing in value [1] - Notable gainers included Hunan Development and Zhongnong Lihua, both hitting the daily limit, while Yaqi International, New Power Finance, and Zhejiang Agricultural Holdings also saw significant increases of 2.66%, 1.40%, and 1.29% respectively [1] - The leading decliners in this sector were Swan Shares, Supply and Marketing Group, and Huangshan Gujie, which fell by 1.66%, 1.17%, and 0.69% respectively [1] Group 2 - The supply and marketing cooperative sector experienced a net inflow of 147 million yuan from main funds, with 7 stocks receiving net inflows [2] - Hunan Development led the net inflow with 181 million yuan, followed by Yaqi International, Zhongnong Lihua, and New Power Finance with net inflows of 54.44 million yuan, 34.54 million yuan, and 11.08 million yuan respectively [2] - The net inflow ratios for Zhongnong Lihua, Yaqi International, and Hunan Development were 19.28%, 13.86%, and 13.60% respectively [3] Group 3 - The trading performance of key stocks in the supply and marketing cooperative sector showed significant turnover rates, with Hunan Development at 19.06%, Zhongnong Lihua at 4.30%, and New Power Finance at 9.80% [3] - The stock performance included Hunan Development rising by 10.01%, while Zhongnong Lihua also increased by 10.00% [3] - Conversely, Supply and Marketing Group saw a decline of 1.17% with a notable negative net fund flow of 109.17 million yuan, indicating a significant outflow [4]

今日涨跌幅居前的概念板块 | 概念 | 今日涨跌幅（%） | 概念 | 今日涨跌幅（%） | | --- | --- | --- | --- | | 石墨电极 | 2.57 | PEEK材料 | -1.79 | | 重组蛋白 | 2.52 | 露营经济 | -1.56 | | 黄金概念 | 2.06 | 华为盘古 | -1.56 | | 兵装重组概念 | 1.99 | WiFi 6 | -1.55 | | 固态电池 | 1.86 | 共享单车 | -1.55 | | 钠离子电池 | 1.56 | AI语料 | -1.52 | | 供销社 | 1.53 | 工业母机 | -1.50 | | 草甘膦 | 1.44 | 华为欧拉 | -1.47 | | 创新药 | 1.42 | 柔性直流输电 | -1.47 | | 金属铅 | 1.39 | 华为手机 | -1.45 | 截至5月21日收盘，共享单车概念下跌1.55%，位居概念板块跌幅榜前列，板块内，信隆健康跌停，浙 文互联、博实结、中贝通信等跌幅居前，股价上涨的有4只，涨幅居前的有科力远、上海凤凰、赫美集 团等，分别上涨2.05%、1.81%、0.98%。 共享单 ...