Market Overview - The Shanghai Composite Index closed down 0.04% at 3387.40, while the Shenzhen Component Index fell 0.12% to 10151.43, and the ChiNext Index decreased by 0.36% to 2049.94 [1][2]. - The total trading volume in the Shanghai and Shenzhen markets reached 1.21 trillion yuan, with over 2900 stocks declining [2]. Sector Performance - Stablecoin concept stocks continued to perform well, with notable gains in oil and gas, shipping, brain-computer interface, and solid-state battery sectors. Conversely, innovative pharmaceuticals and IP economy sectors experienced significant pullbacks, while gold, AI applications, rare earth permanent magnets, and computing power themes weakened [3][4]. - Brain-computer interface stocks showed strong performance, with companies like Beiyikang and Aipeng Medical hitting their daily limit up of 30% and 20%, respectively [3]. Capital Flow - Main capital inflows were observed in the electric equipment, transportation, and oil and petrochemical sectors, while media, pharmaceutical, and automotive sectors saw net outflows [5]. - Specific stocks with net inflows included Rongfa Nuclear Power, Luxshare Precision, and Lakala, attracting 523 million yuan, 455 million yuan, and 411 million yuan, respectively [6]. - In contrast, stocks like Light Media, Yinzhijie, and Hengrui Medicine faced significant sell-offs, with outflows of 1.143 billion yuan, 591 million yuan, and 551 million yuan, respectively [7]. Institutional Insights - Guodu Securities noted improvements in multiple economic indicators in May, with a significant rebound in consumption growth. The market is experiencing structural opportunities amid a volatile index [8]. - CITIC Securities highlighted the unpredictable potential scale of the stablecoin market, suggesting a possibility of non-linear growth. The financial technology companies dominate the issuance side, while the usage scenarios in custody, trading, wealth management, and financing present vast opportunities [8].

黄金股大涨，煤炭、汽车、港口、医药板块涨幅居前，固态电池概念股活跃，PEEK材料、算力题材回调。全市场近 3600只个股下跌。 5月21日，A股主要指数小幅上涨，截至收盘，沪指涨0.21%，深证成指涨0.44%，创业板指涨0.83%，北证50指数涨 0.39%续创历史新高。 | 代码 | 名称 | 两日图 | 现价 | 涨跌 | 涨跌幅 | | --- | --- | --- | --- | --- | --- | | 000001 | 上证指数 | No | 3387.57 | 7.10 | 0.21% | | 399001 | 深证成指 | ั | 10294.22 | 45.05 | 0.44% | | 399006 | 创业板指 | į | 2065.39 | 16.93 | 0.83% | | 899050 | 北证50 | 8 | 1479.81 | 5.82 | 0.39% | 具体来看，固态电池概念爆发，金龙羽、国轩高科、领湃科技等近10股封板。 医药股继续活跃，三生国健、舒泰神、海辰药业等多股涨停。 【资金流向】 主力资金全天净流入电池、汽车整车、贵金属等板块，净流出半导体、通用设备、消费电 ...