Key Takeaways RTX's commercial aftermarket sales grew 21% in Q1 2025, driving strong overall performance.Higher steel and aluminum tariffs forced RTX to lower its 2025 EPS forecast to $5.80-$5.95.Global air traffic growth is fueling aftermarket demand, giving RTX a solid long-term buffer.RTX Corporation’s ((RTX) commercial aerospace aftermarket segment has proved to be a key performance driver for the company in recent quarters, thanks to steadily growing air traffic necessitating increased usage of afterma ...