Aecom is trading 8.22% up in after-hours at $65.73, with no confirmed catalyst. - The regular-session close was $60.74 on October 26, 2026; the sharp move began after the close. - Aecom plans to report fiscal 2026 fourth-quarter and full-year results after market close on November 16, followed by a conference call the next morning; these future results do not explain the move. - The broader market was higher, but available evidence does not establish it as the cause.