Intervacc is trading 24.75% down at €0.05, with no confirmed catalyst for the October 5, 2026 move. - The latest identified company update was a September 15 notice about the CEO’s planned participation in the Swiss Nordic Bio Conference on October 1; it does not establish a cause. - The share-price context provides no volume data. The market is marked closed, and supplied broad-index figures are flat, offering no clear same-direction market explanation.