权益市场交投活跃度持续高涨，券商业绩有望延续高增

Group 1 - The recent market activity remains high, and the performance of the securities industry is expected to continue its high growth due to multiple favorable factors, including a solid capital market foundation and the realization of industry trends [1] - As of the end of September, the margin trading balance reached 2.39 trillion yuan, a year-on-year increase of 66.2%, indicating strong potential for brokerage, proprietary trading, and interest income [1] - The CSI 300 index rose by 17.9% in the third quarter, with the average daily trading volume of A-shares reaching 2.11 trillion yuan, a 211.3% increase compared to the same period last year [1] Group 2 - Over the past month, more than 20 billion yuan has flowed into the securities sector, with the securities ETF (512880) attracting nearly 10 billion yuan [2] - The securities sector has underperformed relative to other sectors this year and has not yet surpassed last year's high point, indicating a potential for valuation recovery [2] - The current price-to-book ratio (PB) of the CSI All Share Securities Company Index is 1.6, which is at the 49.02 percentile over the past decade, suggesting that the sector is undervalued and institutions are under-allocated [2]