数据显示，长信基金旗下1只基金位居盟升电子十大流通股东。长信国防军工量化混合A（002983）三 季度新进十大流通股东，持有股数678.49万股，占流通股的比例为4.04%。根据测算，今日浮亏损失约 1648.73万元。 12月29日，盟升电子跌5.03%，截至发稿，报45.90元/股，成交6.04亿元，换手率7.68%，总市值77.08亿 元。 资料显示，成都盟升电子技术股份有限公司位于四川省成都市天府新区兴隆街道桐子咀南街350号，成 立日期2013年9月6日，上市日期2020年7月31日，公司主营业务涉及卫星应用技术领域相关产品的研发 及制造,是一家卫星导航和卫星通信终端设备研发、制造、销售和技术服务。主营业务收入构成为：卫 星导航78.22%，卫星通信20.66%，租赁1.12%。 从盟升电子十大流通股东角度 截至发稿，宋海岸累计任职时间7年323天，现任基金资产总规模64.95亿元，任职期间最佳基金回报 179.03%， 任职期间最差基金回报-26.88%。 从基金十大重仓股角度 长信国防军工量化混合A（002983）成立日期2017年1月5日，最新规模9.05亿。今年以来收益48.31%， 同类排 ...

Core Points - The article reports two significant solar flares occurring on November 5 and 6, with maximum intensities of M7.4 and M8.6, accompanied by coronal mass ejections (CME) [1][5] - The solar activity is expected to lead to strong geomagnetic activity over the next three days, with potential auroras visible in northern regions of China, including Heilongjiang, Xinjiang, and Inner Mongolia [5][6] Group 1: Solar Activity - The solar flares are characterized by high-energy releases and are associated with CME, which can impact Earth's magnetic field [5][6] - The magnetic field strength of the sun is significantly higher than that of Earth, which contributes to the geomagnetic effects observed during solar events [6][11] Group 2: Geomagnetic Effects - Geomagnetic storms can affect high-tech equipment, particularly satellites and navigation systems, due to atmospheric drag and ionospheric instability [11] - Wildlife that relies on magnetic fields for navigation, such as homing pigeons, may experience difficulties during geomagnetic storms [11] Group 3: Solar Activity Monitoring - The article highlights the importance of monitoring solar activity, particularly the sunspot group 14274, which has a complex magnetic structure and potential for further eruptions [13][14] - The presence of another sunspot group, 14275, is also noted, which could pose additional challenges if it becomes active [14]

Group 1 - The core viewpoint of the news is that Mengsheng Electronics has seen a stock price increase of 5.08%, reaching 35.98 CNY per share, with a trading volume of 1.23 billion CNY and a turnover rate of 2.08%, resulting in a total market capitalization of 60.42 billion CNY [1] - Mengsheng Electronics, established on September 6, 2013, and listed on July 31, 2020, specializes in the research, development, manufacturing, and sales of satellite application technology products, focusing on satellite navigation and satellite communication terminal equipment [1] - The company's main business revenue composition includes satellite navigation at 78.22%, satellite communication at 20.66%, and leasing at 1.12% [1] Group 2 - From the perspective of major fund holdings, Zhongyou Fund has a significant position in Mengsheng Electronics, with its Core Technology Innovation Flexible Allocation Mixed Fund (000966) holding 35,000 shares, accounting for 1.86% of the fund's net value, ranking as the sixth-largest holding [2] - The Core Technology Innovation Flexible Allocation Mixed Fund (000966) has a total scale of 80.8047 million CNY and has achieved a year-to-date return of 29.68%, ranking 3058 out of 8226 in its category [2] - The fund manager, Cao Si, has been in position for 11 years and 157 days, with the fund's best return during his tenure being 107.3% and the worst being 3.06% [2]

Group 1 - The core viewpoint of the news is that Mengsheng Electronics has experienced a significant decline in stock price, dropping 10.52% over the past four days, with the current price at 36.67 CNY per share and a market capitalization of 6.157 billion CNY [1] - Mengsheng Electronics, established on September 6, 2013, and listed on July 31, 2020, specializes in the research, development, manufacturing, and sales of satellite application technology products, with a revenue composition of 78.22% from satellite navigation, 20.66% from satellite communication, and 1.12% from leasing [1] - The trading volume for Mengsheng Electronics on the reporting day was 149 million CNY, with a turnover rate of 2.34% [1] Group 2 - Yongying Fund has one fund heavily invested in Mengsheng Electronics, specifically the Yongying High-end Equipment Smart Selection Mixed Fund A (015789), which held 450,400 shares, accounting for 3.46% of the fund's net value, making it the ninth largest holding [2] - The fund has incurred a floating loss of approximately 869,200 CNY today and a total floating loss of 2.0447 million CNY during the four-day decline [2] - The Yongying High-end Equipment Smart Selection Mixed Fund A was established on July 15, 2022, with a current scale of 113 million CNY, and has achieved a year-to-date return of 19.87% and a one-year return of 65.94% [2]

Core Points - A solar flare occurred on May 31, with a peak intensity of M8.1, indicating a moderate level of solar activity [2] - The solar activity is expected to cause geomagnetic storms on Earth for three consecutive days, with a possibility of auroras in northern regions of China [1][4] - The current solar cycle, which began in 2019, is at its peak phase, with increased solar activity anticipated through 2024 and 2025 [6] Summary by Category - **Solar Activity** - The solar flare originated from active region 14100, with soft X-ray flux rapidly increasing and peaking at M8.1 [2] - Accompanying the flare was a coronal mass ejection, creating a shockwave that propagates through the solar system [2] - **Geomagnetic Storms** - Earth is likely to experience geomagnetic storms due to the direct impact of the coronal mass ejection, with potential small storms expected on June 3 if no new flares occur [4] - Geomagnetic storms can disrupt satellite communications and navigation systems, but they do not pose health risks to humans [6] - **Auroras** - There is a forecast for visible auroras in northern China, with some areas potentially experiencing red-green composite auroras [6] - The phenomenon of auroras is a direct result of geomagnetic storms affecting high-latitude regions [6]