久立特材股价涨5.15%，国泰基金旗下1只基金重仓，持有683.3万股浮盈赚取1059.11万元

Group 1 - The core point of the news is that Jiu Li Special Materials has seen a stock price increase of 5.15%, reaching 31.65 CNY per share, with a trading volume of 417 million CNY and a turnover rate of 1.43%, resulting in a total market capitalization of 30.93 billion CNY [1] - Jiu Li Special Materials, established on January 8, 2004, and listed on December 11, 2009, specializes in the research, production, and sales of industrial stainless steel pipes and special alloy materials, with its main business revenue composition being: seamless pipes 37.97%, composite pipes 33.57%, welded pipes 13.44%, alloy materials 6.25%, others 5.54%, and pipe fittings 3.23% [1] Group 2 - From the perspective of major fund holdings, Guotai Fund has a significant position in Jiu Li Special Materials, with the Guotai CSI Steel ETF (515210) increasing its holdings by 4.2287 million shares in the third quarter, totaling 6.833 million shares, which accounts for 4.55% of the fund's net value, ranking as the fourth-largest holding [2] - The Guotai CSI Steel ETF (515210) was established on January 22, 2020, with a current scale of 3.66 billion CNY, yielding 1.98% this year, ranking 4604 out of 5542 in its category; over the past year, it has achieved a return of 35.06%, ranking 2188 out of 4235; and since inception, it has returned 74.16% [2]