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]