一度跌超1000点！日本股市大幅下跌

Group 1 - The Nikkei 225 index and the Tokyo Stock Exchange index opened significantly lower, with the Nikkei 225 index down by 1.7%, dropping over 1,000 points at one point, and the Tokyo Stock Exchange index down over 1% [1] - Semiconductor and artificial intelligence-related sectors experienced declines, while information communication and banking stocks also showed weak performance [1] - Specific stocks such as Sumitomo Electric Industries, SoftBank Group, and Fujikura fell over 4%, while LASERTEC Semiconductor and NEC dropped over 2% [2] Group 2 - The 30-year Japanese government bond yield rose by 2.5 basis points to 3.280% [3] - The Japanese yen continued to weaken, with the euro against the yen surpassing the 180 mark, marking the first time since 1999 that the yen fell into this range [3] - Concerns over Japan's fiscal situation have led to increased selling pressure on the yen, exacerbated by the government's plans for economic measures exceeding the previously estimated 17 trillion yen [3]