FactSet Research Systems is trading 4.02% up at $270.41 following its September 30, 2026, fiscal fourth-quarter results. - Fiscal Q4 results included adjusted EPS of $4.52, revenue of $634.7 million, and organic ASV growth of 7.0%; FactSet cited strong commercial execution and AI momentum. - Fiscal 2027 organic ASV growth guidance is 5.0%–6.5%, below fiscal 2026’s 7.0%. Shares were also down over the prior several sessions.