日经股指年初走强，再创历史新高

Group 1 - The Nikkei average index reached a new high of 52,518.08 points on January 6, marking a 1.32% increase from the previous day, with a rise of 685.28 points [2][4] - Hitachi's stock surged by 7.30%, reaching 5,438 yen, the highest in about two months, driven by a report from Goldman Sachs on January 5 regarding the industrial electronics sector [2][4] - The report highlighted three favorable aspects for Hitachi: infrastructure development for artificial intelligence (AI), AI-related services, and productivity improvements based on AI [4] Group 2 - The Nikkei index experienced a significant rise, with an increase of 690 points to 52,523 points, surpassing the previous historical high of 52,411 points set on October 31, 2025 [4] - The Tokyo Stock Exchange's TOPIX index also broke the 3,500-point barrier, continuously setting new records [4] - Goldman Sachs raised Hitachi's target stock price for the next 12 months to 6,000 yen, an increase of 100 yen from the previous target [4]