LataMed AI is trading 20.12% up at $0.04, with no clear catalyst identified. - No company-specific announcement dated October 28, 2026, or clear catalyst appeared in available search results. The latest identified company news concerned an earlier strategic evaluation, not a confirmed new deal. - Major U.S. indexes were nearly flat in the supplied market context, which does not clearly explain the gain. - Live-session trading volume and activity details were not provided.