长阳科技股价涨5.04%，海富通基金旗下1只基金重仓，持有1.81万股浮盈赚取1.74万元

Group 1 - The core viewpoint of the news is that Changyang Technology's stock has seen a significant increase, with a rise of 5.04% to reach 20.00 CNY per share, resulting in a trading volume of 337 million CNY and a turnover rate of 6.28%, leading to a total market capitalization of 5.748 billion CNY [1] - Changyang Technology, established on November 16, 2010, and listed on November 6, 2019, specializes in the research, production, and sales of reflective films, backplane base films, optical base films, and other special functional films [1] - The main revenue composition of Changyang Technology includes reflective films at 71.84%, other supplementary products at 10.66%, other categories at 9.50%, and optical base films at 8.01% [1] Group 2 - From the perspective of fund holdings, Haifutong Fund has a significant position in Changyang Technology, with its Haifutong CSI 2000 Enhanced Strategy ETF (159553) holding 18,100 shares, accounting for 0.75% of the fund's net value, making it the fourth-largest holding [2] - The Haifutong CSI 2000 Enhanced Strategy ETF (159553) has a current scale of 41.0225 million CNY and has achieved a year-to-date return of 9.56%, ranking 1788 out of 5551 in its category; over the past year, it has returned 68.5%, ranking 586 out of 4285; since inception, it has returned 101.31% [2] - The fund manager of Haifutong CSI 2000 Enhanced Strategy ETF is Li Ziw, who has been in the position for 2 years and 350 days, with total assets under management of 476 million CNY, achieving the best fund return of 103.16% and the worst return of -21.29% during his tenure [3]