NioCorp Developments is trading 13.8% up at $0.74 as of 9:33 a.m. EST on September 30, 2026; the reason for the move remains unconfirmed. - Supplied price history shows a sharp rebound from the prior close of $0.72 following several declining sessions. - No September 30 company announcement or confirmed catalyst was found. NioCorp’s news page lists its latest release as August 10; available information does not establish a link to broader market trading.