Ceres Power is trading at £311.80, down 15.82%, for the October 15, 2026 session; no verified company-specific announcement explains the sharp fall. - A routine holding notice published after the decline began said funds linked to Christian Leone held about 5.1% of voting rights; reporting did not identify it as the cause. - The decline came amid concern about hotter-than-expected U.S. inflation and interest-rate-sensitive growth stocks, but reporting did not establish this as the cause; the reason remains uncertain.