DCO ▼ -0.0% - Ducommun Incorporated $DCO - Ducommun to Participate in Gabelli Aerospace & Defense Symposium Ducommun Incorporated announced it will participate in the Gabelli Aerospace & Defense Symposium, a conference focused on the aerospace and defense sector. The stock showed no material price movement today following the announcement. 03-SEP-2026 06:00 AM ET