Market Performance - The three major A-share indices showed mixed results in October, with the Shanghai Composite Index rising by 1.85% to close at 3954 points, briefly surpassing 4000 points, marking a ten-year high and achieving a cumulative increase of nearly 18% this year [1] - The Shenzhen Component Index fell by 1.1% to 13378 points, with a year-to-date increase of 28.46% [1] - The ChiNext Index declined by 1.56% to 3187 points, with a year-to-date increase of 48.84% [1] - The Shenzhen Component Index and ChiNext Index both experienced their first monthly decline in five months [1] - The Sci-Tech Innovation 50 Index dropped by 5.33%, while the North Exchange 50 Index rose by 3.54% [1] Sector Performance - The top five performing sectors over the past 20 trading days included Energy Metals with a rise of 15.55%, Coal Mining and Processing up by 12.6%, Industrial Metals increasing by 12.25%, Steel rising by 10.52%, and Insurance up by 9.86% [2] - The bottom five performing sectors included Gaming down by 8.28%, Black Home Appliances down by 5.96%, Communication Equipment down by 4.07%, Film and Cinema down by 3.77%, and Kitchen and Bathroom Appliances down by 3.66% [2] Individual Stock Performance - The top five individual stocks in October included Chaoying Electronics with a rise of 330.8%, C He Yuan-U up by 325.15%, Dao Sheng Tian He increasing by 279.6%, Aomeisen up by 276.36%, and Changjiang Nengke rising by 247.09% [2] - The bottom five individual stocks included *ST Yuan Cheng down by 56.67%, Guomai Culture down by 42.2%, Fuje Environmental down by 31.09%, Jiyou Shares down by 29.47%, and Yitian Intelligent down by 27.62% [2]

Group 1 - The A-share market showed mixed performance in October, with the Shanghai Composite Index rising by 1.85% to close at 3954 points, briefly surpassing 4000 points, marking a ten-year high and achieving a cumulative increase of nearly 18% this year [1] - The Shenzhen Component Index fell by 1.1% to 13378 points, with a cumulative increase of 28.46% this year, while the ChiNext Index decreased by 1.56% to 3187 points, with a cumulative increase of 48.84% this year [1] - The STAR 50 Index dropped by 5.33%, while the North Exchange 50 Index increased by 3.54% during the same period [1] Group 2 - The top five performing sectors over the past 20 trading days included Energy Metals (+15.55%), Coal Mining and Processing (+12.6%), Industrial Metals (+12.25%), Steel (+10.52%), and Insurance (+9.86%) [1] - Conversely, the sectors with the largest declines were Gaming (-8.28%), Black Home Appliances (-5.96%), Communication Equipment (-4.07%), Film and Cinema (-3.77%), and Kitchen and Bathroom Appliances (-3.66%) [1] Group 3 - The top five individual stocks with the highest gains in October were Chaoying Electronics (+330.8%), C He Yuan-U (+325.15%), Daosheng Tianhe (+279.6%), Aomeisen (+276.36%), and Changjiang Nengke (+247.09%) [1] - The stocks with the largest declines included *ST Yuancheng (-56.67%), Guomai Culture (-42.2%), Fujie Environmental Protection (-31.09%), Jiyou Co., Ltd. (-29.47%), and Yitian Intelligent (-27.62%) [1]