Group 1 - The Sci-Tech Innovation 50 Index opened slightly lower on August 19, experienced fluctuations, and closed significantly down at 1112.27 points, with a decline of 1.12% and a trading volume of approximately 549.2 billion yuan [1] - The Sci-Tech Innovation Composite Index also saw a downward adjustment, closing at 1445.75 points with a decrease of 0.8% and a total trading volume of 2285 billion yuan [2] - Among the 587 stocks on the Sci-Tech Board, the average decline was 0.2%, with an average turnover rate of 4.31% and an average fluctuation of 4.71% [2] Group 2 - In terms of individual stock performance, Shenlian Bio and Diaomai both hit the daily limit up, while Wei New Materials experienced the largest drop at 12.05% [3] - Cambrian Technology led in trading volume with 100.7 billion yuan, while ST Pava had the lowest trading volume at 1.885 million yuan [4] - In terms of turnover rate, Yingshi Innovation had the highest at 47.14%, while Tianneng Co. had the lowest at 0.27% [5]

科创50指数今日上涨2.14%，报收1124.82点，科创板全日成交量63.15亿股，成交额2569.27亿元，加权 平均换手率为3.41%。 证券时报·数据宝统计显示，今日可交易科创板股中，479只股收盘上涨，涨幅超过10%的有39只，其 中，南新制药、申联生物、天承科技等8股涨停，涨幅在5%至10%的有60只，收盘下跌的有104只。 科创板股换手率区间分布显示，换手率超过20%的有9只，换手率10%~20%的有44只，换手率5%~10% 的150只，换手率3%~5%的156只，换手率1%~3%的203只，换手率不足1%的有27只。 换手率最高的是屹唐股份，该股今日收盘上涨18.27%，全天换手率39.46%，成交额21.35亿元，其次是 中研股份，该股今日收盘上涨13.46%，全天换手率31.44%，成交额11.51亿元，换手率居前的还有金橙 子、龙图光罩、信宇人等，换手率分别为29.15%、26.00%、25.06%。 市场表现看，换手率超5%的个股中，今日上涨的有160只，影石创新、赛诺医疗、天承科技等收盘涨 停，跌幅居前的有康众医疗、德龙激光、电气风电等，分别下跌7.03%、6.91%、5.37%。 ...

Group 1 - The ETF market showed mixed performance on the 18th, with the rare earth ETFs leading the gains [2] - Efund's rare earth ETF (159715) rose by 6.31%, while another rare earth ETF (159713) increased by 6.22% [2] - The Southern AI ETF (159382) on the ChiNext board gained 5.87% [2] Group 2 - The Sci-Tech Innovation Board Growth ETF (588070) experienced the largest decline, falling by 4.83% [2] - The NASDAQ Technology ETF (159509) decreased by 1.93% [2] - The 30-Year Treasury ETF (511090) dropped by 1.26% [2]

Group 1 - The Sci-Tech Innovation 50 Index opened high on August 18, fluctuated upwards, and closed significantly higher with a final value of 1124.82 points, marking a gain of 2.14% and a trading range of 2.98%, with a total trading volume of approximately 68.52 billion yuan [1] - The Sci-Tech Innovation Composite Index also opened high and closed up 2.41% at 1457.41 points, with a total trading volume of 256.9 billion yuan. Excluding suspended stocks, 587 stocks on the Sci-Tech board mostly rose, with an average increase of 2.65% and an average turnover rate of 4.92% [2] - In terms of individual stock performance, Nanjing New Pharmaceutical and Shunlian Bio reached the daily limit, while Kangzhong Medical saw a decline of 7.03%, the largest drop among stocks [3] Group 2 - In terms of trading volume, Cambrian Technology led with a trading volume of 11.09 billion yuan, while *ST Guandian had the lowest at 1.45 million yuan. In terms of turnover rate, Yitang Co. had the highest at 39.46%, while Longteng Optoelectronics had the lowest at 4.92% [4]

Core Viewpoint - The article discusses the launch of the "Science and Technology Innovation Growth Layer" on the STAR Market, aimed at supporting unprofitable but promising technology companies, enhancing inclusivity for such firms in the market [5][19]. Summary by Sections Introduction to the Growth Layer - The "Science and Technology Innovation Growth Layer" was officially established on July 13, 2025, by the Shanghai Stock Exchange, marking a significant step in supporting the development of technology enterprises that are not yet profitable but have strong growth potential [5]. Access Guidelines - Investors who already have STAR Market trading permissions and have a risk tolerance assessment result of C4 (active) or above can trade stocks or depositary receipts listed after the new regulations are published, provided they sign a risk disclosure statement [7][11]. - For those who have not yet opened STAR Market trading permissions, they must first meet the basic requirements and then sign the risk disclosure statement to participate in trading [11]. Eligibility Requirements for Individual Investors - To open trading permissions for the STAR Market, individual investors must meet several criteria, including: 1. An average daily asset of no less than RMB 500,000 in their securities and funds accounts over the past 20 trading days (excluding funds and securities borrowed through margin trading) [12]. 2. At least 24 months of experience in securities trading [12]. 3. A strong understanding of the risks associated with STAR Market stocks, demonstrated by passing a knowledge test [12]. 4. A risk tolerance assessment result of C4 (active) or above [12]. Trading Process - Investors can access the "Science and Technology Innovation Growth Layer" through specific apps, such as the Shen Cai You Dao APP or Da Ying Jia APP, and must follow the outlined steps to open trading permissions [9][14]. Identification of Growth Layer Stocks - Stocks of companies listed in the Growth Layer will have a "U" identifier to indicate their unprofitable status. New registered stocks will be labeled with "成" for new registrations, while existing stocks will be marked with "成1" [17].

Core Viewpoint - Xi'an Yiswei Materials Technology Co., Ltd. has successfully passed the IPO application review for the Sci-Tech Innovation Board, marking a significant milestone as the first unprofitable company accepted since the "K8 Policy" and indicating a historic breakthrough in China's high-end semiconductor materials sector [2][3]. Company Overview - Xi'an Yiswei is focused on the research, production, and sales of 12-inch silicon wafers, ranking as the largest domestic and sixth globally in this category, with a monthly average shipment and production capacity accounting for approximately 6% and 7% of the global market, respectively [3]. - The company has the highest number of authorized domestic and international invention patents in the 12-inch silicon wafer sector in mainland China as of the end of 2024 [3]. Financial Performance - The company reported revenues of 1.055 billion, 1.474 billion, and 2.121 billion yuan for the years 2022, 2023, and 2024, respectively, with corresponding net profits of -416 million, -692 million, and -763 million yuan [9]. - The main business revenue composition for 2024 includes polished wafers (830.76 million), epitaxial wafers (353.48 million), and test wafers (926.63 million), totaling 2.11087 billion yuan [5]. IPO Details - The IPO aims to raise 4.9 billion yuan for the second phase of the Xi'an Yiswei silicon industry base project, with an initial issuance of 53.78 million shares, accounting for 13.32% of the total shares post-issuance [6][9]. - The company meets the listing standards of having an expected market value of no less than 3 billion yuan and a minimum revenue of 300 million yuan in the last year [9]. R&D and Innovation - The company has invested 576.23 million yuan in R&D from 2022 to 2024, meeting the requirement of R&D investment being over 5% of revenue or totaling over 80 million yuan in the last three years [10]. - As of the end of 2024, the company holds 1,635 patents, with over 80% being invention patents, and has 746 authorized patents, with more than 70% being invention patents [10]. Future Development Plans - The company aims to establish 2-3 core manufacturing bases and several modern intelligent manufacturing plants by 2035, focusing on enhancing product quality, technical capabilities, and maximizing shareholder value [11].

当日科创板成交额前10大个股中9只个股收涨，平均涨幅7.76%，其中寒武纪（688256）以成交额101.72 亿元排第一。从主力资金流入看，成交额前10大个股中有6只个股呈现主力资金净流入。 证券之星消息，8月15日A股收盘，上证指数报收3696.77，上涨0.83%；深圳成指报收11634.67，上涨 1.6%。 ...

以最新收盘价计算，科创板平均股价为35.68元，其中股价超100元的有52只，股价最高的是寒武纪。 证券时报·数据宝统计显示，科创板股今日上涨的有547只，下跌的有40只，以收盘价为基准测算，科创 板平均股价为35.68元，其中，收盘价超过100元的有52只，股价在50元至100元之间的有148只，股价在 30元至50元的有162只。 科创板股中，收盘价最高的是寒武纪，今日报收923.70元，下跌2.67%，其次是茂莱光学、百利天恒 等，最新收盘价分别为353.44元、308.78元。 科创板百元股一览 | 代码 | 简称 | 最新收盘价（元） | 今日涨跌（%） | 换手率（%） | 行业 | | --- | --- | --- | --- | --- | --- | | 688256 | 寒武纪 | 923.70 | -2.67 | 2.64 | 电子 | | 688502 | 茂莱光学 | 353.44 | 3.71 | 7.75 | 电子 | | 688506 | 百利天恒 | 308.78 | -1.88 | 1.23 | 医药生物 | | 688617 | 惠泰医疗 | 297.42 | 2.21 ...

Group 1 - The Sci-Tech Innovation 50 Index experienced an upward trend on August 15, closing at 1101.29 points with a gain of 1.43% and a fluctuation of 2.53% [1] - The total trading volume for the Sci-Tech Innovation Board reached approximately 531.6 billion yuan, with 547 stocks rising [1] - In the sector performance, semiconductor, specialized machinery, and component stocks were notably active, while some chemical and biopharmaceutical stocks saw significant declines [1] Group 2 - On August 15, the average increase for 589 stocks on the Sci-Tech Innovation Board was 2.77%, with an average turnover rate of 3.93% and a total trading volume of 204.4 billion yuan [1] - The stocks with the highest gains included Jiehuate, Zhongyou Technology, and Magu Technology, each rising by 20%, while Mailan De experienced the largest drop at 7.26% [1][2] - In terms of trading volume, Hanwujing led with 10.17 billion yuan, while *ST Guandian had the lowest at 1.309 million yuan [2]

Core Points - The Sci-Tech Innovation 50 Index experienced a high of 3% intraday before closing at 1085.74 points, with a gain of 0.75% and a total trading volume of approximately 656.5 billion yuan [1] - The majority of stocks on the Sci-Tech board declined, with over 510 stocks falling, while high-priced stocks showed mixed performance and low-priced stocks mostly decreased [1] - In the detailed sector performance, certain semiconductor and biopharmaceutical stocks were active, while specialized machinery and software service stocks faced the largest declines [1] - On August 14, the average decline for 589 stocks on the Sci-Tech board was 2.26%, with an average turnover rate of 4.19% and a total trading volume of 218 billion yuan, alongside an average volatility of 5.03% [1] - Notable individual stock performances included Fang Technology and Botao Biology, which rose by 20%, while Dingyang Technology saw a decline of 12.10%, marking the largest drop [1] Trading Volume - Cambrian's trading volume reached 14.04 billion yuan, ranking first, while Delinhai's trading volume was 2.218 million yuan, ranking last [2] Turnover Rate - Longtu Light Mask had the highest turnover rate at 36.92%, while Longteng Optoelectronics had the lowest turnover rate at 0.25% [3]