美聯儲古爾斯比：人工智能投資看起來像是一種刺激措施。

Chinese A-share market staged a sharp morning rally—Sci-Tech Innovation 50 rose nearly 5% intraday—but indices pulled back into the close. Shanghai Composite -0.67%; Shenzhen Composite (Shenzhen Composite Index) -1.68%; ChiNext -2.44%; STAR 50 +0.73% at close. Combined Shanghai/Shenzhen turnover exceeded 1.93 tln yuan and more than 4,600 stocks fell. Sector winners were compute-power chips, CPU-concept names, dairy and semiconductors; laggards included physical-AI, precious metals, cinema chains, gaming and liquor. Key movers: Tianpu hit the daily limit; Muxi, Moore Threads and Cambricon rose over 8%; CHINA'S CPU MAKER HAIGUANG, Rendong Holdings and East China Heavy Machinery also rallied. Suiyuan Technology jumped about 13% to a new high as the semiconductor sub-sector broadly advanced.

U.S. House Speaker Mike Johnson said if U.S. lawmakers want to question Nvidia CEO Jensen Huang, it will happen.