A股收评：沪指微涨0.13%，可燃冰、跨境支付板块走强，稀土永磁回调

Market Overview - The A-share market showed mixed performance on August 21, with the Shanghai Composite Index rising by 0.13% to 3771 points, marking a 10-year high, while the Shenzhen Component Index fell by 0.06% and the ChiNext Index decreased by 0.47% [1][2] - The total trading volume in the Shanghai and Shenzhen markets reached 2.42 trillion yuan, an increase of 158 billion yuan compared to the previous trading day [1] Sector Performance - The combustible ice sector was the strongest performer, with ShenKai Co., Ltd. hitting the daily limit, followed by other companies like Potential Energy and Sinopec also showing gains [4][5] - The oil and gas extraction sector also performed well, with Junyou Co. and other companies like Potential Energy and CNOOC showing significant increases [6][7] - The cross-border payment sector saw a surge, with companies like Sanwei Xinan and Tianrongxin reaching their daily limit [8][9] - Bank stocks rose, with Qingdao Bank and Agricultural Bank of China both increasing by over 2% [10] Notable Stocks - ShenKai Co., Ltd. closed at 11.44 yuan, up 10% [5] - Junyou Co. closed at 8.10 yuan, also up 10.05% [7] - Sanwei Xinan reached 51.70 yuan, up 20.01% [9] - Qingdao Bank and Agricultural Bank of China closed at 5.08 yuan and 7.23 yuan, up 2.21% and 2.12% respectively [10] Declining Sectors - The rare earth permanent magnet sector experienced a pullback, with companies like Beikong Technology and Jintian Co. hitting the daily limit down [11] - The liquid cooling server sector saw significant declines, with Huaguang New Materials and other companies dropping over 10% [12] Corporate Announcements - Dongfang Zirconium announced that its chairman plans to reduce his stake by up to 131,500 shares, representing 0.17% of the total share capital [18] - Yiming Foods reported a nearly 5% drop in stock price, with a total market value of 8.71 billion yuan [18][20]