The Hang Seng Index surged over 4% to surpass the 19,000 mark, hitting a new high since May this year. The Hang Seng Tech Index also soared nearly 6%, reaching a four-month high. This rally was driven by Chinese tech stocks, which saw significant gains in U.S. pre-market trading. Alibaba shares surged 7.19%, while JD.com and Li Auto rose more than 7%. Nio increased by 6.5%, and Tencent Music and Bilibili both rose nearly 6%. Pinduoduo and Baidu saw gains of about 4%. The surge in Chinese tech stocks, including Alibaba, JD, PDD, FXI, and ASHR, was attributed to optimism surrounding new stimulus measures announced by China's central bank.