GE Aerospace’s near-term margin trajectory has been revised downward due to weaker commercial spare-engine sales. Aftermarket revenue from spare parts fell by approximately 8% in the most recent quarter, pressuring segment margins by an estimated 120 basis points. Management attributed the decline to airlines extending maintenance intervals and deferring non-critical overhauls, a trend that led GE to temper its full-year margin guidance by roughly 50 basis points.

In fiscal 2025, GE Aerospace delivered 20.4% year-over-year revenue growth, driven by strong demand for new engine installations and ongoing service contracts. Earnings per share rose by 38% over the prior year, reflecting higher volumes in both Commercial Engines & Services (CES) and Defense, Power & Turbomachinery (DPT) segments. CES sales climbed 22% as airlines added capacity, while DPT grew 18%, powered by steady military and industrial orders.

Looking beyond the current cycle, GE Aerospace expects its installed engine fleet to expand at a mid-single-digit annual rate through 2030, supporting aftermarket revenues that generate higher margin profiles than new engine sales. The company forecasts spare-part revenue will contribute roughly 40% of total aerospace segment profits over the next five years. Investments in digital health monitoring and predictive maintenance are anticipated to secure longer service contracts and reduce airline downtime.

At current multiples, GE Aerospace trades in line with its large-engine-building peers, offering limited upside if growth decelerates as forecasted. While the forward price-to-earnings ratio reflects a premium for its sizable installed base and aftermarket leadership, margin compression risks from spare-engine dynamics and conservative revenue guidance suggest investors should calibrate expectations. Continued cost discipline and incremental pricing power in service agreements will be key catalysts for re-rating.