上期所基本金属期货夜盘收盘涨跌不一，沪锌涨0.39%

Group 1 - The core viewpoint of the news is that the Shanghai Futures Exchange's base metal futures closed mixed on the night of September 26, with some metals experiencing price increases while others saw declines [1][2]. Group 2 - Zinc on the Shanghai Futures Exchange rose by 0.39% [1] - Copper increased by 0.27% [1] - Aluminum saw a rise of 0.10% [1] - Lead experienced a slight increase of 0.09% [1] - Tin decreased by 0.01% [1] - Alumina fell by 0.27% [1] - Stainless steel dropped by 0.74% [1] - Nickel declined by 0.86% [1]