Rolls-Royce 1,120% Run|40x Earnings at the Peak?
Chapter 1: The Rally That Broke Every Expectation — and the Question That Broke the Analysts
Five years ago, Rolls-Royce was a company in crisis. A pandemic had grounded the planes it depends on. Its balance sheet was stretched. Few expected a recovery of any scale.
What happened next was one of the FTSE 100's most dramatic rehabilitations. The share price has risen 1,120% over five years. A £1,000 stake placed in early 2021 would be worth over £12,000 today.
Now the shares are trading near an all-time high. And this week, something quietly revealing happened. Two analysts at the same UK investment research house published contradictory views — on the same stock, in the same week.
One said Rolls-Royce remains a long-term buy. The other said he holds Rolls-Royce but actively prefers a US stock down 49% over it at current prices.
That divergence is not a disagreement about Rolls-Royce's quality as a business. Both agree the fundamentals are strong. The disagreement is about whether the current share price adequately reflects risk. And that question sits at the centre of what this video will resolve.
The most recent leg of the rally was triggered by a specific event. Fresh hopes for an end to the Iran conflict emerged in the final week of May. Rolls-Royce shares gained 20% in a single month. The share price moved from around £11.40 on 15 May to £12.77 by 27 May.
For a stock priced at over 40 times earnings, a 20% move driven by geopolitical speculation is not a small signal. It tells you how much of the current valuation is tethered to one variable: whether Iran resolves.
The unstated premise in the bull case is that Iran peace is not a temporary ceasefire but a structural normalisation. That premise is load-bearing. If it fails, the 20% monthly gain has no earnings support beneath it.
One analyst explicitly flagged a target floor around 1,000p — a level that would represent a roughly 20% decline from current prices. That is not a fringe view. It is the coherent downside destination if the Iran resolution stalls and flying hours disappoint.
The question this video examines is whether the Power Systems division — and its £7.3bn order backlog — provides enough independent support to hold the multiple even if civil aviation softens. That is the verification benchmark. Track it.
Chapter 2: The Flying-Hours Engine — Why Iran Created the Stall and Why a Ceasefire Is Not Enough
To understand Rolls-Royce's exposure to Iran, it helps to know how the company earns the majority of its civil aerospace revenue.
Rolls-Royce does not primarily sell engines. It sells service contracts measured by flying hours. The more planes fly, the more Rolls-Royce earns. This model works beautifully in a recovering post-pandemic aviation market. It becomes a liability when oil prices spike and airlines cut routes.
From mid-2025 to early 2026, the Iran conflict pushed jet fuel costs higher. Airlines responded by reducing flight schedules. Some cancelled summer routes entirely. The result was direct: fewer flying hours meant softer near-term revenue guidance for Rolls-Royce's largest division.
This explains the eight-month period of flat share price performance that confused many investors. The underlying business had not deteriorated. The operating backdrop had shifted. Management confirmed that guidance was manageable, but analysts anticipated that the H1 results would not carry the profit upgrades that had become a feature of Rolls-Royce's recent reporting seasons.
So when Iran peace signals emerged in late May, the market re-rated immediately. The logic is straightforward: peace means lower oil prices, lower fuel costs, more flights, more flying hours, more revenue.
But here is the unstated premise in that logic. The re-rating assumes that airline capacity returns quickly and that deferred route resumptions translate into flying hours within the same financial year. That sequence is not guaranteed.
Airlines are not required to restore capacity rapidly. Some may use a ceasefire period to consolidate rather than expand. Fleet maintenance cycles may mean that additional flying hours take quarters to materialise, not weeks.
Rolls-Royce itself guided for engine flying hours of 115% to 120% of 2019 levels for the rest of 2026. That guidance was issued before the Iran peace signal. It has not yet been revised upward.
If that guidance holds flat and the market discovers the flying-hours recovery is slower than priced, the 20% monthly re-rating becomes exposed. The price-to-earnings ratio of 40 was stretched on the 2025 base. At 40 times earnings, even a flat guidance confirmation — with no upgrade — can look like a disappointment.
The residual uncertainty here is the holding-period question. A long-term holder who entered at 300p five years ago can absorb this volatility without a frame-shift. A new entrant at 1,277p today is entering at a multiple that assumes a smooth civil aviation normalisation. That assumption is still in the data-validation phase.
Chapter 3: The £7.3bn Backlog — Iran-Independent, but Is It Enough to Hold the Multiple?
The bull case for Rolls-Royce at current prices is not entirely dependent on Iran. And that point deserves proper attention, because it is the part of the investment thesis that the Iran-focused framing regularly obscures.
Rolls-Royce's Power Systems division is a separate earnings engine. It covers industrial and marine power, data centre energy supply, and most significantly, small modular reactors.
The company has already disclosed a £7.3bn order backlog in this division. That number is concrete. It does not move based on whether Iran reaches a ceasefire tomorrow or in six months.
The growth driver for Power Systems is AI infrastructure. Data centres require power at a scale that traditional grid connections cannot easily supply. Rolls-Royce's small modular reactor programme is positioned as a solution. The company is already contracted to supply SMRs to the UK and Czech Republic.
One analyst described this as potentially making Rolls-Royce one of the key players in powering the AI revolution. Whether that thesis reaches full valuation within a two-to-five year horizon is unresolved. But the backlog is a floor. Orders already exist. Revenue from those contracts is not speculative.
The question the market has not clearly priced is how much of Rolls-Royce's current premium is attributable to civil aerospace recovery versus the Power Systems structural story.
If civil aerospace disappoints in H1, the Iran-linked premium may compress. But a compressing civil aerospace multiple does not automatically impair Power Systems value. The two are priced as a bundle in the current price-to-earnings ratio of 40, but their risk profiles are different.
A ratio of 40 times earnings as a blended multiple across a flying-hours business and a nuclear reactor backlog business is defensible only if both components are growing simultaneously.
If civil aerospace flatlines while Power Systems continues to build backlog, the aggregate multiple overstates risk in one division and understates value in the other. The analytical work remaining for any serious holder is to estimate those two components separately.
That is the monitoring variable. Not whether Rolls-Royce beats or misses aggregate earnings guidance. Whether the Power Systems backlog grows in H1 — and whether management provides a standalone revenue timeline for the SMR contracts. If those data points arrive cleanly in the next results, the £7.3bn backlog justifies holding the premium through the civil aviation uncertainty. If they are absent, the ratio of 40 times earnings is harder to defend.
- [Motley Fool UK] Has the big opportunity in Rolls-Royce shares gone forever?
- [Motley Fool UK] I’m bullish on Rolls-Royce shares, but I prefer this S&P 500 stock, do…
- [Motley Fool UK] Rolls-Royce shares have gone nowhere in 8 months. Is the rally over?
- [Motley Fool UK] How much would £1,000 invested in Rolls-Royce shares 3 months ago be w…
- [Motley Fool UK] Prediction: this £2.33 FTSE 250 stock will outperform Rolls-Royce and…
- [Motley Fool UK] Rolls-Royce shares turned £10,000 into £11,205 in 12 days! Can they go…
- [AD HOC NEWS] Rolls-Royce Holdings plc stock (GB00B63H8491): Shares rise 3.4% after…