--- title: "The ChiNext Composite Index ETF Jianxin (589880) saw a net capital inflow of over 57 million in the past week, with the underlying index rising 36.08% over the past year." type: "Topics" locale: "en" url: "https://longbridge.com/en/topics/43151526.md" description: "As of July 31, the Shanghai Stock Exchange Science and Technology Innovation Board Composite Index tracked by the Jianxin Sci-Tech Comprehensive Index ETF (589880) rose by 36.08% over the past year; the Jianxin Sci-Tech Comprehensive Index ETF (589880) saw a net capital inflow of 7.4177 million yuan in the previous trading day. As of the previous trading day, the fund recorded a total net inflow of 57.3596 million yuan over the past week. According to reports, ChangXin Memory Technologies' LPDDR6 (the sixth-generation low-power double data rate memory standard) is nearing the end of its R&D verification phase, bringing it one step closer to initial mass production..." datetime: "2026-08-03T09:28:35.000Z" locales: - [en](https://longbridge.com/en/topics/43151526.md) - [zh-CN](https://longbridge.com/zh-CN/topics/43151526.md) - [zh-HK](https://longbridge.com/zh-HK/topics/43151526.md) author: "[同壁财经](https://longbridge.com/en/profiles/26505347.md)" --- # The ChiNext Composite Index ETF Jianxin (589880) saw a net capital inflow of over 57 million in the past week, with the underlying index rising 36.08% over the past year. As of July 31, the Shanghai Stock Exchange STAR Market Composite Index tracked by the Jianxin STAR Market Composite ETF (589880) rose by 36.08% over the past year; the Jianxin STAR Market Composite ETF (589880) saw a net capital inflow of 7.4177 million RMB on the previous trading day. As of the previous trading day, the fund recorded a total net inflow of 57.3596 million RMB over the past week. According to reports, ChangXin Memory Technologies' LPDDR6 (the sixth-generation low-power double data rate memory standard) is nearing the end of its R&D verification phase, bringing it one step closer to initial mass production. LPDDR is used in electronic devices such as smartphones and tablets, commonly found in mobile consumer electronics. According to ChangXin Technologies' prospectus, the company's LPDDR5, DDR5, and LPDDR5X products were mass-produced in 2023, 2024, and 2025, respectively. Last year, the DDR series and LPDDR series accounted for 31.87% and 66.43% of ChangXin Technologies' main business revenue, respectively. The fact that LPDDR6 is nearing the end of verification means that ChangXin's low-power mobile memory products may soon undergo a new round of iteration. If ChangXin can drive mass production in the second half of this year after completing the R&D verification of LPDDR6, it is expected to become one of the earliest storage manufacturers globally to mass-produce LPDDR6, competing with SK Hynix. A research report from Guokai Securities points out that in terms of the domestic supply chain, industrial development is gradually moving from technological breakthroughs and product introduction to capacity construction, large-scale delivery, and supply chain synergy. The demand for domestic computing power is expanding from key projects to internet platforms, operators, and industry customers; the listing of ChangXin Technologies and subsequent fundraising investment projects provide a clearer tracking window for increasing the share of domestic DRAM, product upgrades, and equipment and material demands. With the expansion of domestic wafer fabs, upgrades in storage processes, and the advancement of customer validation, semiconductor equipment, materials, advanced packaging, and testing platforms are expected to continue to benefit, and the research framework for the domestic supply chain will further shift towards verifiable indicators such as capacity, orders, customer onboarding, and cash flow. The Shanghai Stock Exchange STAR Market Composite Index closely aligns with the core of technological innovation, tightly connecting with the national layout of strategic emerging industries. Its sample stocks are highly concentrated in frontier technology fields such as semiconductors, artificial intelligence, innovative drugs, and new energy, fully demonstrating the innovative vitality and development potential of China's hard tech enterprises. Data Source: Wind, as of August 3, 2026 Jianxin STAR Market Composite ETF (589880) Jianxin SSE STAR Market Composite Feeder A (023743) Jianxin SSE STAR Market Composite Feeder C (023744) Past performance of the index does not predict future trends, nor does it represent the performance of related funds. Industries and individual stocks do not constitute investment recommendations. Markets involve risks, and investments require caution. ### Related Stocks - [688825.CN](https://longbridge.com/en/quote/688825.CN.md) - [SKHY.US](https://longbridge.com/en/quote/SKHY.US.md) - [SKHYV.US](https://longbridge.com/en/quote/SKHYV.US.md) - [SK.US](https://longbridge.com/en/quote/SK.US.md) - [589880.CN](https://longbridge.com/en/quote/589880.CN.md) - [000680.CN](https://longbridge.com/en/quote/000680.CN.md)