Core Viewpoint - Oracle's significant decline has triggered a collective drop in major tech stocks, leading to a more than 400-point drop in the Nasdaq index [1] Group 1: Market Reaction - The Hong Kong stock market opened lower after a brief rebound, with the Hang Seng Index down 0.54%, the Hang Seng China Enterprises Index down 0.62%, and the Hang Seng Tech Index down 1.11% [1] - Major tech stocks experienced a collective downturn, with Xiaomi and Alibaba both falling by 2% [1] Group 2: Sector Performance - Software stocks, automotive stocks, and duty-free concept stocks also declined, with XPeng Motors down 2.3% and China Duty Free Group down 2% [1] - In contrast, some sectors showed resilience, with CICC's stock rising 7% as it plans to merge with Dongxing Securities and Xinda Securities, while biopharmaceutical and high-speed rail infrastructure stocks saw partial gains [1]