Does Rolls-Royce's Jet Engine Momentum Seem Built to Last?

Rolls-Royce (RYCEY) is demonstrating strong momentum in its jet engine business, driven by resurgent global air travel and increased defense spending. The Civil Aerospace unit achieved double-digit revenue growth in H1 2025 and boasts a backlog exceeding 2,000 widebody engines as of July 2025, primarily from its Trent family. Concurrently, its defense segment benefits from geopolitical tensions and a partnership in the Global Combat Air Programme. RYCEY shares have surged 124.5% over the past year, trading at a relative valuation discount (36.51x forward P/E vs. industry 48.05x) with improving earnings estimates, suggesting continued growth potential.

Analysis

Rolls-Royce Holdings plc (RYCEY) is exhibiting robust momentum driven by dual tailwinds in its Civil Aerospace and Defense segments. The Civil Aerospace unit reported double-digit revenue growth in the first half of 2025, supported by a resurgence in global air travel and airline fleet modernization. This demand is underscored by a substantial backlog of over 2,000 widebody engines as of July 2025, primarily for its fuel-efficient Trent family engines used on Airbus and Boeing aircraft. Concurrently, the Defense division is benefiting from increased European defense spending and geopolitical tensions, which are expected to drive steady, long-term demand for its military engines. The company's strategic positioning is further reinforced by its partnership in the next-generation Global Combat Air Programme. From a market perspective, RYCEY shares have significantly outperformed, surging 124.5% in the past year versus its industry's 36.6% growth. Despite this appreciation, the stock trades at a forward 12-month P/E of 36.51x, a notable discount compared to the industry average of 48.05x, while consensus earnings estimates for 2025 and 2026 have been revised upward, suggesting sustained fundamental strength.

Key Decisions for Investors

• Despite the 124.5% share price increase over the past year, the stock's forward P/E of 36.51x remains at a discount to the industry average of 48.05x, suggesting potential for further re-rating if operational momentum continues.
• Investors should monitor the key macro drivers underpinning the thesis, namely the sustained growth in global air travel for the civil division and the trajectory of European defense budgets for the defense segment.
• The substantial backlog of over 2,000 widebody engines provides significant revenue visibility and should be considered a core factor in assessing the company's long-term earnings stability and insulation from short-term market volatility.