灵均规模跌入量化第二梯队 去年初曾1分钟卖出26亿元

Group 1: Market Overview - The article highlights the emergence of four major players in quantitative investment, namely Ruanfu, Mingchao, Jiukun, and Huansquare, with management scales ranging from 60 billion to 70 billion yuan [1] - As of June 30, 2025, there are 88 private equity firms managing over 10 billion yuan, with one new addition in the previous month [1] - Among the 88 firms, 41 have showcased performance data for the first half of the year, with six firms achieving an average return of over 20% [1] Group 2: Company Profile - Ningbo Lingjun Investment Management Partnership (Limited Partnership) focuses on quantitative investment and aims to assist high-net-worth clients in asset management [1] - Established in June 2014, Lingjun is registered with the Asset Management Association of China and holds the registration number P1004526 [1] Group 3: Regulatory Issues - Lingjun Investment faced public reprimands from both the Shanghai and Shenzhen Stock Exchanges for abnormal trading activities, including selling 2.567 billion yuan worth of stocks within one minute [2][3] - On February 19, 2024, the Shanghai Stock Exchange identified significant sell orders from Lingjun that led to a rapid decline in the Shanghai Composite Index, resulting in a suspension of trading for related products [2] - The Shenzhen Stock Exchange also noted that Lingjun's accounts executed large sell orders totaling 1.372 billion yuan within a short time frame, disrupting normal trading order [3]