Group 1 - The Shanghai Composite Index fell by 0.23% as of April 29, 2025, with mixed performance among constituent stocks, led by Weir Shares up 4.58% and Wuxi AppTec up 4.39% [3] - The Politburo meeting highlighted three key signals regarding the economic situation: a recognition of external economic challenges, a focus on stabilizing employment and market expectations, and an acceleration of policy implementation, particularly in technology, consumption, and foreign trade [3] - The government plans to enhance policy measures to support key sectors and ensure employment stability as a primary goal [3] Group 2 - According to Dongwu Securities, the "national team" has shifted its investment strategy from individual stocks to passive index tools, with over 100 billion yuan allocated to ETFs tracking the Shanghai 50 Index by the end of last year [4] - As of March 31, 2025, the top ten weighted stocks in the Shanghai 50 Index accounted for 49.84% of the index, with Kweichow Moutai, China Ping An, and China Merchants Bank being the top three [4] - The Shanghai 50 ETF closely tracks the Shanghai 50 Index, with significant holdings in major blue-chip companies [4]