近3日累计“吸金”超2.1亿，券商ETF（159842）小幅走高，机构：券商板块下半年投资机遇凸显

Group 1 - The core viewpoint of the articles highlights the strong performance and growth potential of the brokerage sector, driven by favorable market conditions and increased trading activity [2][3]. - The brokerage ETF (159842) has seen a net inflow of over 210 million yuan in the past three days, indicating strong investor interest [2]. - The overall brokerage sector index has increased by over 7% in August, with eight stocks in the sector rising more than 10% during the same period [2]. Group 2 - Major brokerage firms have reported significant growth in their performance for the first half of the year, attributed to active market trading boosting brokerage and interest income [3]. - The investment banking business is recovering, with a notable increase in refinancing and IPO activities [2][3]. - Analysts from various firms express optimism about the brokerage sector's valuation recovery and potential for further growth, citing supportive government policies and increased liquidity in the market [3].