10月29日午后，受到北证50ETF推出预期的影响，北证50指数持续拉升，截止收盘，北证50报收 1573.71点，涨幅高达8.41%。 消息面上，今日在2025金融街论坛年会上，北京证券交易所董事长鲁颂宾表示：持续优化北交所指数体 系建设，加快推出北证50ETF，研究引入盘后固定价格交易，不断提升投资交易便利性。 此前，北交所交易因设有开通条件限制，且存在"30cm"的较大幅度波动特征，被视作高风险偏好合格 投资者的专属舞台，众多散户只能望而却步、不敢轻易入场。 而假若北证50ETF被推出，其可凭借低成本策略分散投资北交所优质成分股，有效降低参与门槛，大幅 提升市场流动性，为投资者打造出高效便捷的北交所配置利器，有力推动市场价值发现并吸引长期资金 入场。 或受此影响，今日北证50大涨。其中，最受市场关注的北证50成分股是市值体量最大的贝特瑞。截止收 盘，贝特瑞大涨19.38%，股价报收35.29元/股，最新市值达到397.8亿元。 资料显示，贝特瑞成立于2000年8月，隶属于中国宝安集团，2015年贝特瑞在新三板挂牌交易，2021年 11月于北交所上市。其主要产品为锂电池负极材料、正极材料，覆盖了动力电池、 ...

Core Insights - The North Exchange stocks showed strong performance in the afternoon, with the North 50 Index rising nearly 9% [1] - Notable gainers included Huaxin Yongdao up 25%, Better Ray up over 18%, and Fujida up over 16% [1] - The Chairman of the North Exchange, Lu Songbin, announced plans to optimize the index system and introduce the North 50 ETF, enhancing trading convenience [1] Company Performance - Huaxin Yongdao: October increase of 25.21%, total market value of 4.057 billion, year-to-date increase of 5.52% [2] - Better Ray: October increase of 18.74%, total market value of 39.6 billion, year-to-date increase of 82.19% [2] - Fujida: October increase of 16.37%, total market value of 6.407 billion, year-to-date increase of 25.64% [2] - Tianma New Materials: October increase of 13.88%, total market value of 3.846 billion, year-to-date increase of 45.86% [2] - Tonghui Electronics: October increase of 13.64%, total market value of 7.052 billion, year-to-date increase of 211.92% [2] - Shuguang Digital Innovation: October increase of 13.19%, total market value of 19.2 billion, year-to-date increase of 42.24% [2]