According to Kabutan, Yonhap and RTHK, Asia-Pacific stocks opened broadly lower on Monday amid concerns that the massive funding needs of global artificial intelligence investment may be unsustainable, while Brent crude futures fell 1.6% to $108.06 a barrel. Tokyo's Nikkei 225 opened at 64,819.56, down 504.73 points from the previous session, and the TOPIX opened at 4,043.98, down 22.02 points. Chip and AI-related shares led losses after the open; as of 01:00 UTC the Nikkei stood at 64,104.76, down 1,219.53 points or 1.87%, with Advantest, SoftBank Group and Tokyo Electron the biggest drags.

Seoul's KOSPI opened at 5,488.41, down 179.64 points or 3.17%, before trimming losses, trading at 5,572.10 as of 00:15 UTC, down 95.95 points or 1.69%. Tech stocks led the decline, with Samsung Electronics down 1.28%, SK hynix down 2.83% and HD Hyundai Heavy Industries down 3.7%. The KOSDAQ opened at 773.06, down 21.72 points.

Hong Kong's stock market is closed today for the day following the Chung Yeung Festival holiday.

Taiwan's TAIEX opened down 266.62 points at 46,844.64, and the decline widened to as much as 867 points, with the index touching a low of 46,243.55. TSMC fell as low as NT$2,390 in early trade, down NT$30 or 1.24%; UMC fell more than 4%, while Nanya Technology and Winbond Electronics each dropped more than 5%.

In mainland China, major A-share indexes opened lower, with the Shanghai Composite down 0.6%, the Shenzhen Component down 0.5% and the ChiNext index down 0.43%.