--- title: "Hong Kong stock movement: DIAGENS-B falls 20.28% after being included in the Hang Seng Index, is the good news being realized?" type: "News" locale: "en" url: "https://longbridge.com/en/news/296991983.md" description: "DIAGENS-B fell 20.28%; Gensun Bridge rose 5.09%, with a transaction volume of HKD 59.67 million; MicroPort Scientific Corporation-B fell 1.40%, with a transaction volume of HKD 40.68 million; MicroPort Medical rose 1.20%, with a transaction volume of HKD 39.47 million; True Health Medical-B rose 5.39%, with a market value of HKD 24.7 billion" datetime: "2026-08-26T05:46:28.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/296991983.md) - [en](https://longbridge.com/en/news/296991983.md) - [zh-HK](https://longbridge.com/zh-HK/news/296991983.md) generator: "portal-rs" --- # Hong Kong stock movement: DIAGENS-B falls 20.28% after being included in the Hang Seng Index, is the good news being realized? **Hong Kong Stock Movement** DIAGENS-B fell 20.28%. Based on recent key news: 1. On August 24, DIAGENS-B was included in the Hang Seng Index constituent stocks, marking the market's recognition of its technological strength and industry position. This move is expected to enhance the liquidity and trading activity of the company's stock, with significant potential for valuation improvement. Source: Zhitong Finance 2. On August 24, DIAGENS-B announced that its inclusion in the Hang Seng Index constituent stocks reflects the capital market's recognition of the company's long-term growth potential. This milestone is expected to lead to the company's shares being included in a broader range of index funds and core investment portfolios of institutional investors. Source: Zhitong Finance 3. On August 24, DIAGENS Biotechnology announced its inclusion in the Hang Seng Index, which is expected to help diversify the investor base, enhance trading liquidity, and strengthen resilience against risks. Source: Viewpoint Network AI empowers recognition of technological strength in the medical field. **Stocks with High Trading Volume in the Industry** Guichuang Tongqiao rose 5.09%. Based on recent key news: 1. On August 21, Guichuang Tongqiao spent approximately HKD 72,200 to repurchase 3,500 shares at a price of HKD 20.6 to 20.62 per share. This move demonstrates the company's confidence in its own stock, driving the share price up. 2. On August 24, the company repurchased another 44,500 shares, costing approximately HKD 927,500, with a repurchase price of HKD 20.52 to 20.98 per share. The continuous repurchase actions further enhance market confidence, and the share price continues to rise. 3. On August 25, Guichuang Tongqiao spent HKD 1,184,400 to repurchase 56,500 shares at a price of HKD 20.54 to 21.2 per share. The large-scale repurchase indicates the company's optimistic expectations for future performance, leading to an increase in the share price. Recent repurchase activities in the Hong Kong stock market have been frequent, with significant capital inflow. MicroPort Robotics-B fell 1.40%. MicroPort Robotics-B fell by 1.40%. There has been no important news recently; trading is active, and capital flow is evident. Considering the sector and industry trends, this stock shows significant volatility, and specific reasons need further observation. no\_news MicroPort Medical rose 1.20%, with a trading volume of HKD 39.47 million, and there has been no important news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, this stock shows significant volatility, and specific reasons need further observation. **Stocks with High Market Capitalization in the Industry** Zhenjiankang Medical-B rose 5.39%. Based on recent key news: 1. On August 22, Zhenjiankang Medical-B signed a strategic cooperation framework agreement with General Technology Liaoning Pharmaceutical Co., Ltd. to promote the standardization of tumor minimally invasive interventional technology. This cooperation is beneficial for enhancing the company's market influence and aligns with the interests of the company and all shareholders. 2. On August 25, Zhenjiankang Medical-B announced that the cooperation will accelerate the large-scale implementation of the company's self-developed tumor minimally invasive surgical robots and specialized solutions in Northeast China, creating a replicable tumor specialty model and empowering regional medical upgrades On August 26, Zhenjiankang Medical-B obtained a compliant procurement channel for public hospitals in Liaoning Province, connecting to the pharmaceutical commercial network of state-owned enterprises in the three northeastern provinces, leveraging the credit of state-owned enterprises to establish a trust foundation for long-term cooperation. 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