3日超15亿资金涌入，“双两万亿”打开券商想象空间，与上轮牛市相比，本轮行情有何不同？

Group 1 - A-shares continue to gain momentum, with the Shanghai Composite Index reaching new highs and trading volume exceeding 2 trillion yuan for six consecutive trading days [1] - The balance of margin financing has increased for eight consecutive days, currently standing at 2.15 trillion yuan, indicating a stable market environment [1] - The influx of diverse incremental funds is a key difference between the current A-share market and the previous bull market, with a shift from institutional consolidation to a more diversified funding ecosystem [1] Group 2 - As of the end of July, the balance of household deposits was 160.91 trillion yuan, down by 1.11 trillion yuan from the previous month, with a significant negative correlation between household deposits and total A-share market value [1] - The current ratio of household deposits to stock market value is 1.7, indicating potential for further capital inflow into the market as household funds are reallocated [1] - The brokerage sector is benefiting significantly from the upward market cycle, with the A-share leading brokerage ETF (512000) rising by 8.62% since August [1][2] Group 3 - The brokerage ETF (512000) has attracted a total of 1.528 billion yuan over three consecutive days, with its latest fund size exceeding 28.3 billion yuan [2] - The brokerage sector index tracked by the ETF has increased by 10.65% year-to-date, suggesting room for further gains as it ranks 23rd among 31 industries [4] - The current underweight positioning of equity funds in the brokerage sector, combined with new regulations, may drive institutional capital to increase allocations to this sector [5] Group 4 - The brokerage ETF (512000) passively tracks the CSI All Share Securities Company Index, encompassing 49 listed brokerage stocks, with nearly 60% of its holdings concentrated in the top ten leading brokerages [6] - The ETF serves as an efficient investment tool that balances exposure to both leading and smaller brokerages, capitalizing on the high growth potential of smaller firms [6]