Safran does not sell jet engines — it sells a regulator-enforced 25-year annuity on 45,000 of them.

• The property right. EASA/FAA type certificates legally bar airlines from fitting non-certified parts on a certified engine. CFM56 plus LEAP put ~45,000 engines on wing, each scheduled back to a CFM-approved shop every 5–7 years for 25–30 years per engine. The OE sale is the entry fee; the aftermarket is the business.
• The JV runs to 2050. Safran and GE Aerospace renewed the 50/50 CFM joint venture in 2025 — Safran keeps half of every engine sold and every spare and shop visit for another quarter-century past the original CFM56 end-of-life. Sole-source on the 737 MAX, ~60% share on the A320neo.
• The annuity is compounding in real time. Civil engine spare-parts revenue grew +21.6% in USD in H1-25 — well above any plausible flight-hour growth. Q1-26 confirmed: LEAP deliveries +60% YoY, spare parts +29%, services +43%. Propulsion margin stepped up 240bps to 23.0% while still absorbing loss-making LEAP OE.

The 28 July H1-26 print decides whether €1B of FY25 cash flow was timing or a one-off.

• The forensic flag. FY25 receivables grew 35.5% on revenue +12.5%; days-payable stretched +30 days to 256. Roughly €1.0B of the reported €3.9B FCF is working-capital timing. Strip it out and steady-state FCF is closer to €2.8–3.0B — and the FY26 €4.4–4.6B guide requires either the timing benefit to repeat or genuine cash earnings to step up €1.4–1.8B.
• The valuation gap. Safran trades at 20.3× FY25 EV/EBITDA against GE Aerospace at 33.9× — on the OTHER 50% of the same CFM cash-flow stream. Peer median ex-GE (MTU 12.4×, Thales 15.4×, Honeywell 17.1×, Rolls-Royce 18.0×) sits at 13–17×. Bulls treat GE as the credible anchor; bears treat it as a US-listing outlier and call Safran upper-quintile.
• The compounding rate. Recurring operating income grew +26% in FY25. Adjusted profit attributable to owners grew just +3.5%. FY25 one-off items totaled €(479)M including €(244)M SPI capital loss and €(178)M of program impairments — all excluded from the recurring walk. Consolidated ROIC sits at 5.7%, worst in the engine-prime peer set.

The franchise is printing; the question is whether the print converts to cash at 70% across a cycle.

Propulsion delivers 23.0% recurring operating margin on a mix that's already 65% services; group margin of 16.6% blends in lower-margin Equipment & Defense (12.7%) and break-even Interiors. The path to the €7.0–7.5B 2028 EBIT ambition rests on Propulsion holding the band and Equipment walking toward mid-teens — not on a fresh revenue cycle. Cash conversion of 70%+ across 2026–2028 is the condition that supports the 20× multiple; sustained conversion below 60% would expose the multiple to peer-median (~13×) gravity.

Stock sits 14% below February's high into a binary July print on a technically broken tape.

• 50 days to the verdict. H1-26 results land 28 July 2026. DSO retracing under 145 and a clean sequential receivables reversal validates the FY26 €4.4–4.6B FCF guide; failure forces a consensus cut on a multiple with thin peer-median cushion below it. No other near-term event materially updates the long-term thesis.
• The tape is broken. Death cross on 8 May 2026 at €298.5 — first since October 2022. The prior two (March 2020, August 2021) preceded multi-month drawdowns averaging 25%+. 30-day realized volatility sits at 41.5%, above the 10-year 80th-percentile band. Recovery from the €265 April low ran on average volume, no clean accumulation.
• The governance tail. US House Select Committee on China asked the Pentagon on 20 March 2026 to review Safran's AVIC joint ventures. Slow-moving but binary — any procurement restriction forces a choice between Chinese commercial revenue and US DoD contracts that GE, RTX and Honeywell do not carry.