SES AI is trading 10.37% up at $0.59, with broader market sentiment a possible support, though no direct cause is established. - No clear SES AI-specific announcement on September 30 explains the move. - ISO certification at its Chungju facility was announced September 28, recent background rather than a confirmed same-day catalyst. - Reuters cited easing Treasury yields and advancing growth stocks ahead of August PCE as support for U.S. futures; the Nasdaq was up 0.90%, without proving a direct link.