Group 1: Core Insights - UBS has released a forecast report on the adjustments to the Hang Seng Index (HSI) and the Hang Seng China Enterprises Index (HSCEI), with changes expected to be announced on August 22, 2025, and effective from September 5, 2025 [1][2] - The HSI will see an increase in the number of constituent stocks and aims for a market capitalization coverage of at least 50% across each industry group, with the healthcare sector currently below this threshold [2][5] - The weight limit for individual stocks in the HSI will be set at 8%, a change from the previous limits of 5% for secondary listings and 10% for others [1][2] Group 2: Potential Inclusions and Exclusions - Stocks expected to experience capital outflows due to weight limits include HSBC Holdings (5 HK), CCB-H (939 HK), Xiaomi Corp-W (1810 HK), and NetEase Inc (9999 HK) [1] - Potential new inclusions in the HSI include stocks like Giant Biogene (2367 HK), Wuxi XDC (2268 HK), and Pop Mart (9992 HK), with estimated notional trades of $60.86 million, $28.32 million, and $440.66 million respectively [6][8] - Stocks likely to be excluded from the HSCEI include those ranked 61st or lower, with Pop Mart (9992 HK) being a notable potential inclusion [7][8] Group 3: Southbound Stock Connect Implications - The Hang Seng Composite Index serves as a benchmark for the Southbound Stock Connect, with potential new inclusions such as Bank of East Asia Ltd (23 HK) and Jiangsu Zenergy Battery Technology (3677 HK) [10][11] - Stocks that may be removed from the Southbound Stock Connect include Gemdale Properties (535 HK) and Jiumaojiu International Holdings (9922 HK) [12]