Defense Spending: Ducommun's significant exposure to defense and military programs, particularly missiles, means its performance is highly sensitive to government defense budgets and geopolitical developments.

Commercial Aerospace Market Conditions: The company serves commercial aircraft platforms, making it susceptible to industry trends such as aircraft production rates, airline demand, and supply chain issues (e.g., Boeing's inventory destocking).

General Industrial and Economic Health: As a manufacturer for industrial markets, overall economic health, manufacturing output, and industrial demand directly influence the performance of its non-aerospace and defense segments.