Jia Yuan Technology(SH:688388) Xin Lang Cai Jing·2025-11-21 02:14Group 1 - The core viewpoint of the news is that 嘉元科技 (Jia Yuan Technology) has experienced a significant decline in stock price, dropping 5.31% to 33.90 yuan per share, with a total market capitalization of 14.45 billion yuan, and a cumulative decline of 9.34% over three consecutive days [1] - 嘉元科技 specializes in the research, production, and sales of high-performance electrolytic copper foil, with its main business revenue composition being 83.77% from lithium battery copper foil, 12.64% from other income, and 3.58% from standard copper foil [1] - 易方达上证科创板200ETF (E Fund SSE Sci-Tech Innovation Board 200 ETF) holds 嘉元科技 as its fourth largest position, with 59,700 shares, accounting for 1.22% of the fund's net value, resulting in a floating loss of approximately 113,500 yuan today and a total floating loss of 220,500 yuan during the three-day decline [2] Group 2 - The 易方达上证科创板200ETF was established on June 5, 2025, with a current scale of 183 million yuan and a cumulative return of 28.36% since inception [2] - The fund manager, 李博扬 (Li Boyang), has been in position for 1 year and 223 days, managing total assets of 5.759 billion yuan, with the best fund return during his tenure being 100.81% and the worst being -1.34% [2]