Japan Stock of the Day | Kabutaro & Friends

On September 8, 2026, the most talked-about Japanese stock online was WITZ <4440>.
Background: A disclosure released by the company at 8:50 a.m., titled "Launch of research and development on safety and assurance technology supporting the social implementation of physical AI," drew buying. Its research theme, "research and development of safety assurance technology and security countermeasure technology to accelerate the social implementation of physical AI," was selected under the Small and Medium Enterprise Agency's Go-Tech program. The company will serve as project leader and advance the work through industry-academia-government collaboration, aiming to establish and commercialize foundational technology for operating physical AI continuously and safely in the real world. Envisaged application fields include automobiles, collaborative robots, construction and aerospace. The stock surged on the disclosure and was locked at its daily limit from the morning session, closing at 2,014 yen, up 400 yen (+24.78%), the top gainer on the Tokyo Stock Exchange Standard Market.