Mei Ri Jing Ji Xin Wen·2025-05-19 02:10Group 1 - The Hang Seng Index opened lower on May 19, with a decline of 0.81% to 23,156.27 points, while the Hang Seng Tech Index fell by 1.02% and the Hang Seng China Enterprises Index dropped by 0.82% [1] - Technology stocks generally experienced declines, while gold stocks saw gains, and the biopharmaceutical sector showed mixed performance [1] - ZTO Express and Midea Group both opened higher by 2.85% and 2.12% respectively, as they were included in the Hang Seng Index's quarterly review [1] Group 2 - The quarterly review results announced on May 16 included the addition of Midea Group and ZTO Express to the Hang Seng Index with weights of 0.33% and 0.44% respectively, increasing the number of constituent stocks to 85 [1] - The Hang Seng Tech Index added BYD Company Limited with a weight of 8% while removing WeMedia Group, keeping the total number of constituent stocks at 30 [1] - The adjustments to the indices will take effect on June 9 [1] Group 3 - The Hang Seng Tech Index ETF (513180) leads in both scale and liquidity among its peers listed in A-shares, supporting T+0 trading [2] - The underlying index of the ETF includes core AI assets and technology leaders that are relatively scarce compared to A-shares [2] - Positive external conditions and strong Q1 financial results from tech giants like Tencent, JD.com, and NetEase may provide upward momentum for the Hang Seng Tech Index, which is characterized by high elasticity and growth potential [2]