IHI Corporation
7013.TLOWTactical · Weight: 9%· Data as of 2026-05-04
Investment Thesis
Japan's sole manufacturer of H3 rocket turbopumps (LE-9 first stage + LE-5B-3 second stage) and SRB-3 solid rocket boosters — structurally irreplaceable in Japan's only operational heavy-lift launcher. Also prime contractor for Epsilon solid rocket and manufacturer of satellite apogee kick motors / bipropellant thrusters used in JAXA/commercial satellites. Aviation/Space/Defense segment grew from ¥266.9B (FY2023) to ¥552.7B (FY2024) on defense spending ramp; FY2026 NI guidance ¥125B (+150% vs prior year). WARNING: AP01 flag active — stock +155% in 52 weeks, PB 7.84x. Enter only as TACTICAL position acknowledging valuation risk.
Risk
1) AP01 PEAK EARNINGS TRAP FLAG: Stock +155% YTD, PB 7.84x (historically 1-2x) — full defense euphoria already priced in; 2) Concept stock risk: space revenue estimated <5% of ¥1.64T total (primary driver is commercial aero engines, not space); 3) H3 anomaly Dec 2025 — navigation satellite failed to deploy correctly, raising H3 reliability questions heading into 2026 launch manifest; 4) Epsilon S program suspended since 2023 explosion — no restart timeline confirmed; 5) EV/FCF 82x extremely stretched. Thesis breaks if: H3 suffers second anomaly in 2026 OR defense budget allocation to space launch is cut.
Monitoring Trigger
H3 launch outcomes in 2026 (next mission TBD after Dec 2025 anomaly investigation). If H3 successfully deploys 2+ payloads in 2026 AND Epsilon S restart announced, HOLD. If H3 suffers second failure, TRIM 50% immediately. Also watch IHI's commercial aviation engine backlog — if GE9X/LEAP orders slow, the primary earnings driver weakens and the valuation inflection reverses. If PB drops back to 4x on earnings deceleration, reassess entry.
Key Dates
Update History
New coverage — LOW conviction Tactical (9%). H3 launch propulsion monopoly but AP01 peak earnings flag and concept stock risk noted. Monitor H3 reliability post-Dec 2025 anomaly.
SpaceX IPO catalyst DD (June 2026 target, $1.75T-$2T valuation). This stock has NO direct SpaceX supplier or customer relationship — fundamental exposure is to JAXA / Japan Space Strategy Fund and domestic JP space programs, NOT SpaceX. Flagged as HALO ONLY beneficiary of SpaceX IPO buzz. AP03 concept-stock risk if mistakenly bid on SpaceX narrative.
Key Metrics
Business Segments
| Segment | Revenue | Share | Description |
|---|---|---|---|
| Aero Engine, Space & Defense | ¥552.7B | 34% | Commercial aero engines (GE9X, LEAP), H3 turbopumps/boosters, Epsilon rocket, satellite propulsion |
| Resources, Energy & Environment | est. ¥400B | ~25% | LNG carriers, industrial plants, energy infrastructure |
| Social Infrastructure + Industrial Systems | est. ¥670B | ~41% | Bridges, tunnels, industrial equipment, turbochargers |
Supply Chain Evidence
| Evidence | Customer | Product | Detail |
|---|---|---|---|
| confirmed | JAXA / Mitsubishi Heavy Industries (H3 program) | H3 rocket turbopumps (LE-9 + LE-5B-3) and SRB-3 solid boosters | IHI is sole Japan manufacturer of turbopumps for both H3 engine stages and SRB-3 solid rocket boosters. H3 TF3 anomaly Dec 2025 under JAXA investigation.[source](2026-01-01) |
| confirmed | JAXA (Epsilon program) | Epsilon S solid rocket prime contractor | IHI Aerospace is prime for Epsilon. Program suspended after Epsilon S test explosion Nov 2023. Restart and upgraded Epsilon Future in development.[source](2023-11-01) |
| probable | JAXA / commercial satellite operators | Satellite apogee kick motors and bipropellant thrusters | IHI produces satellite propulsion systems used in Japanese government and select commercial satellites. Market share in Japan satellite propulsion ~dominant.[source](2026-01-01) |
Sources & References
Peer Comparison
| Company | PE | Fwd PE | ROE | Op Margin | FCF |
|---|---|---|---|---|---|
| Synspective | N/M | N/M | -1.0% | -174.1% | -¥10.0B |
| QPS Holdings (iQPS) | N/M | 254.6 | -1.7% | -90.0% | N/A |
| NEC Corporation | 23.5 | 19.6 | 8.8% | 7.6% | +¥202B |
| Astroscale Holdings | N/M | N/M | -64.2% | -161.7% | -¥15.3B |
| ispace, inc. | N/M | N/M | -49.4% | -253.3% | N/A |
| Axelspace Holdings | N/M | N/M | -61.4% | -342.5% | N/A |
| Mitsubishi Electric Corporation | 31 | 30.6 | 9.85% | 9.6% (Defense & Space segment) | +¥316.8B |
| IHI Corporation | N/M | 25.7 | 26.76% | ~8.8% (company-wide FY2024: OP ¥143.5B / Rev ¥1,626.8B) | +¥42.5B |
| Toray Industries | 22 | 17.3 | N/A | N/A | N/A |
| KDDI Corporation | 14.4 | 12.9 | N/A | N/A | N/A |