Indokripto Koin Semesta is trading at IDR 510, down 15%, after closing its October 15, 2026 session amid broad market weakness as the IHSG fell 1.33%. - The stock was among the market’s steepest decliners; no company-specific catalyst was identified. - Inflation-driven concerns about interest rates weighed on risk assets. - Major crypto prices were only modestly lower since their previous close, not matching the scale of the stock’s decline.