Group 1 - The article highlights that 51 stocks appeared on the Long-Short list this week, with 37 showing net purchases from the Shenzhen Stock Connect [1] - The top three stocks with the highest net purchases were Changying Precision, Kaimete Gas, and Shanzi Gaoke, with net purchases of 407.68 million, 293.35 million, and 247.44 million respectively [1] - The average increase for the stocks with net purchases was 12.34%, outperforming the Shanghai Composite Index, which fell by 1.30% [1] Group 2 - The stock with the largest increase was Boliang Optoelectronics, which saw a cumulative rise of 47.15% this week [1] - There were 14 stocks with net sales, with Huagong Technology and Sanhua Intelligent Control having the largest net sales of 439.84 million and 180.36 million respectively [2] - The detailed table lists various stocks along with their net purchases, weekly price changes, and turnover rates, indicating significant trading activity [1][2]

9月19日沪指下跌0.30%，盘后龙虎榜数据显示，机构现身24只个股龙虎榜，净买入10只，净卖出14 只。深沪股通席位出现在18只个股龙虎榜。 证券时报·数据宝统计显示，9月19日机构专用席位现身24只个股龙虎榜，合计净买入3495.76万元。个股 来看，净买入10只，净卖出14只。 机构龙虎榜净买卖个股 9月19日机构龙虎榜净买卖个股 | 代码 | 简称 | 当日涨跌幅（%） | 当日换手率（%） | 机构净买入（万元） | | --- | --- | --- | --- | --- | | 002460 | 赣锋锂业 | 10.00 | 12.62 | 43023.44 | | 001221 | 悍高集团 | 10.00 | 30.73 | 7647.09 | | 300993 | 玉马科技 | 20.02 | 15.56 | 7618.57 | | 301013 | 利和兴 | -8.96 | 43.85 | 5191.75 | | 301379 | 天山电子 | 19.98 | 28.46 | 4552.74 | | 000559 | 万向钱潮 | -9.98 | 8.74 | 3312.91 | | ...

Summary of Key Points Core Viewpoint - On September 19, a total of 27 stocks were involved with institutional investors, with 11 stocks showing net buying and 16 stocks showing net selling [1]. Group 1: Institutional Net Buying - The top three stocks with the highest net buying by institutions were: - Ganfeng Lithium: Net buying amount of 430.23 million yuan, with a price increase of 10.00% [2]. - Guangdong Hongda: Net buying amount of 325.22 million yuan, with a price increase of 7.76% [2]. - Hanhai Group: Net buying amount of 76.47 million yuan, with a price increase of 10.00% [2]. - Other notable stocks with net buying included Yuma Technology (76.19 million yuan, 20.02% increase) and Tianshan Electronics (45.53 million yuan, 19.98% increase) [2]. Group 2: Institutional Net Selling - The top three stocks with the highest net selling by institutions were: - Shanzi Gaoke: Net selling amount of 253.76 million yuan, with a price decrease of 4.91% [3]. - Wavelength Optoelectronics: Net selling amount of 131.39 million yuan, with a price increase of 14.60% [3]. - Chuanrun Co.: Net selling amount of 76.70 million yuan, with a price increase of 1.08% [3]. - Other significant stocks with net selling included Jinyi Film (27.56 million yuan, 9.97% decrease) and Jingxing Paper (29.24 million yuan, 10.06% decrease) [3].

Core Viewpoint - The lithography machine concept sector has shown a significant increase of 2.09%, leading among concept sectors, with 27 stocks rising, including notable gains from KaiMet Gas, Yongxin Optical, and Haili Co., which hit the daily limit up [1][2]. Group 1: Stock Performance - The top gainers in the lithography machine sector include Tengjing Technology, which rose by 14.94%, followed by Wavelength Optoelectronics at 14.60%, and Huaya Intelligent at 6.15% [1][2]. - The stocks with the largest declines include Guangli Micro, Chip Quasi-Equipment, and Tongfei Co., which fell by 4.44%, 3.54%, and 2.40% respectively [1][2]. Group 2: Capital Flow - The lithography machine sector attracted a net inflow of 1.687 billion yuan, with 21 stocks receiving net inflows, and 6 stocks exceeding 50 million yuan in net inflow [2][3]. - Haili Co. led the net inflow with 792 million yuan, followed by KaiMet Gas with 670 million yuan, and Wavelength Optoelectronics with 209 million yuan [2][3]. Group 3: Capital Inflow Ratios - The top stocks by net inflow ratio include KaiMet Gas at 24.35%, Haili Co. at 23.47%, and Wavelength Optoelectronics at 7.99% [3][4].

Market Performance - The ChiNext Index fell by 0.16%, closing at 3091.00 points, with a total trading volume of 603.66 billion yuan, a decrease of 231.40 billion yuan compared to the previous trading day [1] - Among the tradable ChiNext stocks, 378 stocks closed higher, with 14 stocks rising over 10%, including Yuma Technology, Green Island Wind, and Tianshan Electronics, which hit the daily limit [1] - A total of 990 stocks closed lower, with 3 stocks declining over 10% [1] Turnover Rate - The average turnover rate for the ChiNext today was 4.39%, with 28 stocks having a turnover rate exceeding 20% [1] - The highest turnover rate was for Boliang Optoelectronics at 53.62%, which closed up 14.60% with a trading volume of 2.609 billion yuan [1][3] - Other notable stocks with high turnover rates included *ST Dongtong, Xidian Co., and Lihengxing, with turnover rates of 48.18%, 45.66%, and 43.85% respectively [1][3] Institutional Activity - Six high-turnover ChiNext stocks appeared on the Dragon and Tiger List, with five stocks showing institutional participation [3] - Lihengxing had four institutional seats with a total net purchase of 51.92 million yuan, while Tianshan Electronics had two institutional seats with a net purchase of 45.53 million yuan [3] - Boliang Optoelectronics saw a net sell-off of 131 million yuan despite a net purchase of 629.35 million yuan from the Shenzhen Stock Connect [3] Capital Flow - Among high-turnover stocks, 19 experienced net inflows of main funds, with Boliang Optoelectronics, Wanlima, and Kexin Machinery receiving the most significant inflows of 209 million yuan, 120 million yuan, and 113 million yuan respectively [4] - Conversely, Hanwei Technology, Gaolan Co., and Lihengxing faced the largest net outflows of 364 million yuan, 179 million yuan, and 178 million yuan respectively [4] - Only one high-turnover stock released a performance forecast for the first three quarters, with Aifenda expecting a net profit of 99 million yuan, representing a year-on-year increase of 14.72% [4]

Core Viewpoint - The stock of Wavelength Optoelectronics experienced a significant increase of 14.60% in a single trading day, with a high turnover rate of 53.62% and a total transaction volume of 2.609 billion yuan [2]. Trading Activity - The stock's trading data indicates that institutional investors had a net sell of 131 million yuan, while the Shenzhen Stock Connect saw a net buy of approximately 62.93 million yuan [2]. - The top five trading departments accounted for a total transaction volume of 788 million yuan, with a net buy of 2.039 million yuan [2]. - Among the trading departments, four institutional special seats were involved, with a total buy amount of 67.48 million yuan and a total sell amount of 199 million yuan, resulting in a net sell of 131 million yuan [2]. Fund Flow - The stock saw a net inflow of 209 million yuan from major funds, with a significant inflow of 242 million yuan from large orders, while large orders experienced a net outflow of 33.32 million yuan [3]. - Over the past five days, the stock has seen a total net inflow of 390 million yuan [3]. Margin Trading Data - As of September 18, the stock's margin trading balance was 439 million yuan, with a financing balance of 439 million yuan and a securities lending balance of 18,900 yuan [3]. - In the last five days, the financing balance increased by 185 million yuan, representing a growth of 72.47%, while the securities lending balance increased by 430 yuan, with a growth of 29.35% [3].

波长光电9月19日发布公告，股票交易连续3个交易日收盘价格涨幅偏离值累计达到48.17%，根据《深 圳证券交易所交易规则》有关规定，属于股票交易异常波动情形。 经核实，近期公司经营情况及内外 部经营环境未发生重大变化。公司及控股股东、实际控制人不存在应披露而未披露的重大事项，也不存 在处于筹划阶段的重大事项。股票异动期间，公司控股股东、实际控制人不存在买卖公司股票的行为。 ...

波长光电公告称，公司股票自2025-09-17至2025-09-19连续3个交易日累计涨幅达48.17%，已触发异常波 动公告。公司自查确认无应披露而未披露的重大事项，控股股东及实际控制人在相关期间未买卖公司股 票，公司经营情况及内外部环境未发生重大变化。 ...

证券代码：301421 证券简称：波长光电 公告编号：2025-042 南京波长光电科技股份有限公司（以下简称"公司"）股票交易连续 3 个交 易日（2025 年 9 月 17 日、9 月 18 日、9 月 19 日）收盘价格涨幅偏离值累计达 到 48.17%，根据《深圳证券交易所交易规则》有关规定，属于股票交易异常波 动的情况。 3．近期公司经营情况及内外部经营环境未发生重大变化； 南京波长光电科技股份有限公司 关于股票交易异常波动的公告 本公司及董事会全体成员保证信息披露的内容真实、准确、完整，没有虚假 记载、误导性陈述或重大遗漏。 一、股票交易异常波动的具体情况 1．公司前期披露的信息不存在需要更正、补充之处； 2．公司未发现近期公共媒体报道了可能或已经对本公司股票交易价格产生 较大影响的未公开重大信息； 4．公司及控股股东、实际控制人不存在应披露而未披露的重大事项，也不 存在处于筹划阶段的重大事项。股票异动期间，公司控股股东、实际控制人不存 在买卖公司股票的行为。 二、公司关注、核实情况的说明 针对公司股票异常波动情况，公司董事会通过书面询证等方式，对公司及公 司控股股东、实际控制人就相关问题进行了核 ...

Market Overview - The optical and optoelectronic sector rose by 0.75% on September 19, with Tianshan Electronics leading the gains [1] - The Shanghai Composite Index closed at 3820.09, down 0.3%, while the Shenzhen Component Index closed at 13070.86, down 0.04% [1] Top Gainers - Tianshan Electronics (301379) closed at 29.54, up 19.98% with a trading volume of 360,500 shares [1] - Tengjing Technology (688195) closed at 132.14, up 14.94% with a trading volume of 151,800 shares [1] - Wavelength Optoelectronics (301421) closed at 108.30, up 14.60% with a trading volume of 248,300 shares [1] - Other notable gainers include Yingfeite (300582) up 14.14% and Fujing Technology (002222) up 10.00% [1] Top Losers - Biaosheng Sensor (300701) closed at 13.78, down 7.95% with a trading volume of 289,000 shares [2] - Helitai (002217) closed at 3.55, down 6.58% with a trading volume of 4,545,500 shares [2] - Chanzhan Optoelectronics (003019) closed at 39.67, down 6.06% with a trading volume of 146,900 shares [2] Capital Flow - The optical and optoelectronic sector saw a net inflow of 2.376 billion yuan from institutional investors, while retail investors experienced a net outflow of 855 million yuan [2][3] - Major stocks like Oufei Optoelectronics (002456) had a net inflow of 1.986 billion yuan from institutional investors [3] Individual Stock Performance - Oufei Optoelectronics (002456) had a net inflow of 1.986 billion yuan, representing 16.98% of its trading volume [3] - Fujing Technology (002222) saw a net inflow of 369 million yuan, accounting for 12.08% of its trading volume [3] - Wanrun Technology (002654) had a net inflow of 238 million yuan, representing 11.44% of its trading volume [3]