JCET(SH:600584) Xin Lang Cai Jing·2026-02-26 05:38Group 1 - Jiangsu Changjiang Electronics Technology Co., Ltd. (长电科技) experienced a stock price increase of 5.09%, reaching 49.31 CNY per share, with a trading volume of 2.949 billion CNY and a turnover rate of 3.46%, resulting in a total market capitalization of 88.236 billion CNY [1] - The company, established on November 6, 1998, and listed on June 3, 2003, specializes in integrated circuit system integration, design simulation, technology development, product certification, wafer testing, wafer-level packaging testing, system-level packaging testing, and chip testing, providing direct shipping services to semiconductor customers worldwide [1] - The main revenue composition of the company includes 99.59% from chip packaging and testing, 0.35% from other sources, and 0.05% from leasing income [1] Group 2 - Huatai-PB Asset Management's Huatai-PB CSI 300 ETF (510300) is among the top ten circulating shareholders of Changjiang Electronics, having reduced its holdings by 1.0697 million shares in the third quarter, now holding 24.5011 million shares, which accounts for 1.37% of the circulating shares [2] - The fund has generated an estimated floating profit of approximately 58.5576 million CNY as of the current date [2] - The Huatai-PB CSI 300 ETF was established on May 4, 2012, with a latest scale of 422.258 billion CNY, yielding 2.44% year-to-date, ranking 4224 out of 5572 in its category, and achieving a one-year return of 23.84%, ranking 2653 out of 4311 [2]