--- title: "Samsung launches the world's first 900-layer 3D NAND flash memory prototype; the STAR Chip ETF E Fund (589130) underlying index rises over 2%, with over 1 billion in revenue in nearly 20 days" type: "News" locale: "en" url: "https://longbridge.com/en/news/287706568.md" description: "Samsung Electronics launched the world's first 900-layer 3D NAND flash memory prototype, the STAR Chip ETF E Fund (589130) index rose over 2%, attracting more than 1 billion in the past 20 days. The SSE STAR Chip Index (000685) rose 2.21%, with differentiated performance among weighted stocks. CITIC Securities is optimistic about the storage industry trend, expecting the industry to maintain high prosperity" datetime: "2026-05-27T02:49:17.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/287706568.md) - [en](https://longbridge.com/en/news/287706568.md) - [zh-HK](https://longbridge.com/zh-HK/news/287706568.md) generator: "portal-rs" --- # Samsung launches the world's first 900-layer 3D NAND flash memory prototype; the STAR Chip ETF E Fund (589130) underlying index rises over 2%, with over 1 billion in revenue in nearly 20 days As of 10:35, the SSE STAR Chip Index (000685) rose by 2.21%. Among the weighted stocks, Baiwei Storage increased by 9.63%, Yuanjie Technology rose by 7.57%, and Zhongwei Company gained 3.75%. However, Tuojing Technology fell by 3.99%, Haiguang Information dropped by 2.59%, and Cambrian Technologies decreased by 0.5%. As of the previous trading day, the index has increased by 159.13% over the past year. The STAR Chip ETF E Fund (589130) has been favored by investors, with net inflows for five consecutive days, totaling over 460 million, and over 540 million in the past ten days, and over 1 billion in the past twenty days. In terms of news, Samsung Electronics recently utilized Chip Multi-Die (CMB) technology to connect two 450-layer 3D NAND chips, creating the world's first 900-layer ultra-high stacking 3D NAND flash memory prototype, and the working characteristics of this storage unit have been validated. CITIC Securities pointed out that the current expansion of storage manufacturers faces dual constraints, both subjective and objective, with effective capacity release limited until 2026. It is expected that new capacity will not be substantially released until the end of 2027 to 2028, and there is limited room for upward adjustment in supply growth during this process. They remain optimistic about the storage industry trend, expecting the industry to maintain high prosperity, and original manufacturers and related storage design companies are likely to sustain high profitability for a longer time. The STAR Chip ETF E Fund (589130) closely tracks the SSE STAR Chip Index, which selects securities from STAR Market listed companies involved in semiconductor materials and equipment, chip design, chip manufacturing, and chip packaging and testing to reflect the overall performance of representative chip industry listed companies on the STAR Market. 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