Hitachi shares surge nearly 10% after OpenAI partnership announcement, marking biggest rally since April
Japanese industrial giant Hitachi Ltd witnessed its sharpest intraday stock surge since April 2025, climbing as much as 9.9% to ¥4,285 in Tokyo trading on October 3, following the announcement of a strategic partnership with OpenAI. The rally came after both companies signed a memorandum of understanding (MoU) to collaborate on building sustainable energy infrastructure…