双王炸来袭！市场屏息期待小米发布会，港股科技50ETF（159750）“含米量”超14%

Group 1 - The core viewpoint of the news highlights the contrasting performance of major technology stocks in the Hong Kong market, with BYD shares rising while Alibaba and Tencent experienced slight declines [1] - Xiaomi's 15th anniversary strategic product launch event is seen as a significant milestone in its transformation from a consumer electronics company to a hardcore technology enterprise, covering self-developed chips, flagship smartphones, high-end tablets, and smart cars [3][4] - The launch of the Xiaomi 15S Pro, featuring the self-developed 3nm chip "Xuanjie O1," positions Xiaomi as the fourth globally and the second domestically to possess self-developed SoC capabilities, filling a gap in advanced process design below 5nm in China [4] Group 2 - The Xiaomi Group's stock has performed exceptionally well in the Hong Kong market since 2025, with a nearly 58% increase as of May 21, making it a leading player in the Hong Kong technology sector [4] - The Hong Kong Technology 50 ETF (159750) has seen a net inflow of 460 million yuan this year, indicating strong investor interest and liquidity, with Xiaomi Group being the largest weighted stock at 14.04% [9] - The Hong Kong Technology Index includes a broader range of companies compared to the Hang Seng Technology Index, with a focus on both large-cap and small-cap technology firms, and it uniquely covers the "Terrific 10" companies with a high weight of 70% [7][9]