--- title: "Hong Kong Stock Movement: GIGADEVICE rises 12.38%, with Longsys Technology restarting its IPO and the dual benefits of new product launches boosting stock prices" type: "News" locale: "en" url: "https://longbridge.com/en/news/286991027.md" description: "GIGADEVICE rose by 12.38%; SMIC rose by 5.91%, with a transaction volume reaching HKD 4.574 billion; Hua Hong Semiconductor rose by 4.63%, with a transaction volume reaching HKD 1.551 billion; Montage Technology rose by 3.02%, with a transaction volume reaching HKD 884 million; Biren Technology rose by 0.75%, with a market value reaching HKD 118.1 billion" datetime: "2026-05-20T02:12:59.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/286991027.md) - [en](https://longbridge.com/en/news/286991027.md) - [zh-HK](https://longbridge.com/zh-HK/news/286991027.md) --- # Hong Kong Stock Movement: GIGADEVICE rises 12.38%, with Longsys Technology restarting its IPO and the dual benefits of new product launches boosting stock prices **Hong Kong Stock Movement** GIGADEVICE rose by 12.38%. Based on recent key news: 1. On May 18, the news of Changxin Technology restarting its IPO drove GIGADEVICE's stock price up. GIGADEVICE holds 1.80% of Changxin Technology's shares, and Chairman Zhu Yiming also serves as Chairman of Changxin Technology. The stock price once hit the daily limit, reaching a new high of 412.87 HKD per share. Source: People's Financial News 2. On May 19, GIGADEVICE launched three new motor drivers, further expanding its motor driver chip portfolio, with products already in mass production, driving the stock price up. Source: People's Financial News 3. On May 19, GIGADEVICE's trading volume reached 20 billion HKD, with the stock price currently up 0.91%. Source: China News Service. The demand in the storage industry is strong, but risks need to be monitored. **Stocks Ranked Among the Top in Industry Trading Volume** SMIC rose by 5.91%. Based on recent key news: 1. On May 18, a report from BOC International indicated that SMIC's first-quarter performance met expectations, with strong guidance for the second quarter, and price increases expected to support gross margins. The shipment of power management chips and logic chips benefited from AI demand, driving the stock price up. Source: BOC International 2. On May 19, SMIC announced that based on customer demand and order conditions, the company is more optimistic about its operational situation this year. AI demand has led to a supply shortage of power management chip capacity and order recovery, driving the stock price up. Source: SMIC announcement 3. On May 18, Morgan Stanley raised SMIC's target price to 85 HKD, maintaining an "overweight" rating, reflecting strong guidance for second-quarter revenue and gross margins. AI demand is driving customers to seek alternative manufacturing partners, pushing the stock price up. Source: Morgan Stanley report. AI demand is driving growth in the semiconductor industry. Huahong Semiconductor rose by 4.63%. Based on recent key news: 1. On May 18, Huahong Semiconductor's net profit in the first quarter increased by 4.6 times year-on-year, reaching 21 million USD, mainly due to a low base effect, meeting Daiwa's expectations, and reaffirming a "buy" rating. The company expects revenue to grow by 4-6% in the second quarter, with gross margins rising to 14-16%. This news drove the stock price up. Source: Zhitong Finance 2. On May 19, a Citigroup report indicated that Huahong Semiconductor benefits from the localization trend in China and AI-related demand, with prices expected to rise further this year, especially in the NOR flash memory platform. Citigroup raised the target price to 160 HKD, reaffirming a "buy" rating. Source: Zhitong Finance 3. On May 18, a report from Credit Lyonnais stated that Huahong Semiconductor will continue to benefit from AI growth and domestic substitution trends, raising the target price to 147.6 HKD, maintaining an "outperform" rating. Source: Zhitong Finance. The demand in the semiconductor industry is strong, with significant capital inflow. Lattice Semiconductor rose by 3.02%. Based on recent key news: 1. On May 14, JP Morgan increased its holdings in Lattice Semiconductor by 24,200 shares, raising its ownership ratio to 8.01%, demonstrating institutional confidence in the company, driving the stock price up Source: Zhitong Finance 2. On May 17, Lanqi Technology's net cash flow from operating activities remained positive and exceeded the net profit after deducting non-recurring items, indicating a good financial health of the company and enhancing market confidence. Source: Zhitong Finance 3. On May 18, the company's share-based payment expenses reached 431 million yuan. After excluding this impact, the net profit attributable to the parent company increased by 80.98%. The effectiveness of the equity incentive mechanism has drawn attention and may affect stock price fluctuations. Source: Zhitong Finance. The light asset model in the technology industry is receiving attention. **Stocks ranked among the top in industry market capitalization** Biran Technology rose by 0.75%. Based on recent key news: 1. On May 19, Biran Technology signed an ecological cooperation framework agreement with Wanda Information to promote the commercialization of AI projects. The two parties will integrate resources and jointly explore markets in areas such as smart government, healthcare, and smart cities. This cooperation agreement has boosted market confidence in Biran Technology, driving up the stock price. 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