· 7 stocks
Japan defense budget ¥9.04T FY2026 (record, 2% GDP two years early). Arms export liberalization April 2026 — biggest policy shift in decades. GCAP 6th-gen fighter program (Japan/UK/Italy) — first flight 2027, service entry 2035. Australia selects improved Mogami frigate (11 ships, $7B). Type 12 missile mass production starts FY2027. Submarine-launched cruise missile by 2028. SHIELD program ¥128.7B for unmanned systems. China sanctioned 40 Japanese defense firms including MHI, KHI, IHI, Fujitsu Defense, NEC. EXPLORE (2026-05-02): added supply-chain coverage — JSW (5631) sole barrel maker for Type 19/99 howitzers, Sky Perfect JSAT (9412) Tri-Sat ¥283B MILSAT PFI prime, Howa Machinery (6203) sole Type 20 rifle supplier expanded cross-service.
Portfolio Overview
| # | Company | Conv | Wt | PE | Fwd PE | PB | ROE | OpMar | D/E | DY | FCF |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Mitsubishi Heavy Industries, Ltd.7011.T | HIGH | 20% | 40.10 | 40.24 | 4.40 | 12.2% | 8.7% | 21% | 0.65% | +¥300B |
| 2 | ShinMaywa Industries, Ltd.7224.T | HIGH | 12% | 16.50 | 18.00 | 1.43 | 8.18% | 4.5% | 49% | 2.19% | -¥11.0B |
| 3 | Tokyo Keiki7721.T | MEDIUM | 8% | ~29.7 (actual FY2025 on ¥181 EPS; StockAnalysis shows 19.29x but uses stale FY2024 data) | 22.30 | ~2.0 (compressed: stock -30%, book grew slightly) | ~7% (FY2025 actual; StockAnalysis 11.89% is stale FY2024) | ~4.6% (FY2025: OP ¥2.83B est. / Rev ¥61.5B) | 91.0% | 0.74% (¥40/share FY2025, raised from ¥35 — stock ~¥5,370) | N/A |
| 4 | ACSL Ltd.6232.T | LOW | 5% | N/A | N/A | 24.40 | -77.7% | -71% | 223% | 0% | -¥1.3B |
| 5 | The Japan Steel Works, Ltd.5631.T | MEDIUM | 10% | 33.50 | 31.10 | 3.50 | 9.09% | 8.4% | 34% | 1.02% | -¥19.7B |
| 6 | SKY Perfect JSAT Holdings Inc.9412.T | MEDIUM | 8% | 43.70 | 35.00 | 1.60 | 4.5% | 10% | 60% | 1.4% | +¥30B (est.) |
| 7 | Howa Machinery, Ltd.6203.T | MEDIUM | 5% | 10.30 | 11.00 | 0.65 | 6.5% | 5.5% | 30% | 1.7% | +¥1B (est.) |
Portfolio Construction
Stock-by-Stock Analysis
Mitsubishi Heavy Industries, Ltd.
7011.THIGHCoreWeight: 20%
Why this stock
Japan's #1 defense contractor — prime on GCAP 6th-gen fighter, Type 12 missile mass production, Taigei submarines, Mogami frigates. FY2025 full-year results (announced May 12, 2026): Revenue ¥4,974.1B (+14.1%), NI ¥332.1B (+35.3%) — all records. ADS segment hit ¥1,144.5B (>¥1T milestone confirmed, +38% YoY). Order intake ¥7,653.6B (+20%). Australia Mogami contract formally signed April 18, 2026 (A$10B, 3 frigates — Japan's largest ever defense export). Arms export liberalization enacted April 21, 2026 — first Philippines destroyer sale framework agreed May 7. FY2026 guidance: Revenue ¥5.4T, Business Profit ¥540B (+25%). Stock fell -7.07% on earnings day (sell-the-news) despite record results — current ¥4,080 vs analyst PT ¥5,348-5,507.
What could go wrong
1) PE 40.1x still reflects defense premium — compression risk if geopolitical tensions ease or defense budget growth slows. 2) NEW: China export controls — 5 MHI subsidiaries on China's dual-use export control list (Feb 24, 2026). Input procurement risk for rare earths, tungsten. Controls still in force. 3) GCAP is a decade-long program with execution risk across 3 countries. 4) D/E 21% (interest-bearing basis; 165% on total liabilities) — the difference reflects financial debt only vs. gross balance sheet. 5) Defense ADS (23% of revenue) vs Energy Systems (42%) — still a conglomerate, not a pure defense play. 6) FCF declined ¥585B → ¥300B — prior figure likely included advance payments from Mogami contracts.
Monitoring trigger
✓ ADS ¥1T: CONFIRMED (¥1,144.5B). ✓ Australia Mogami contract: SIGNED April 18, 2026. ✓ Arms export enacted. NEW: Watch first named arms export contract under new rules (Q2-Q3 2026). Watch China sanctions resolution — if escalated, review supply chain for rare earth/tungsten exposure. If forward PE drops below 30x on earnings growth, ADD. Dividend ¥29/share guided FY2026 (+16% YoY).
ShinMaywa Industries, Ltd.
7224.THIGHSatelliteWeight: 12%
Why this stock
Only amphibious aircraft manufacturer globally (US-2). Arms export three principles revised April 21, 2026 — Japan scrapped 5-category restriction; India confirmed as eligible export country (17-nation list). Unit 9 delivered Dec 2024, Unit 10 on order at ¥21.9B. JMSDF order backlog ¥349.7B (+11% YoY through Dec 2025). India wet lease RFI (4 aircraft, Jan 2026). Pentagon NDAA FY2026 authorized 3-year INDOPACOM seaplane pilot program (Dec 2025). XU-MII unmanned amphibious demonstrator first flight Oct 2, 2025. New CEO Takashi Kunihara since April 1, 2026. MHI supplies main wings — CRITICAL: MHI flagged desire to exit after Unit 10.
What could go wrong
1) MHI supply chain constraint: MHI flagged exit desire after Unit 10 — hard production cap at 2/year unless renegotiated. 2) India wet lease price gap: US-2 at $115M+/unit vs competitor Albatross 2.0 at ~$25M/unit — 4-5x disadvantage. 3) CONCEPT STOCK RISK: Aircraft is 15% of revenue; stock at ¥2,594 is 73% above analyst consensus target ¥1,500. 4) FCF -¥11.0B. 5) Arms export deals: 2-3 year minimum timeline.
Monitoring trigger
May 8 FY2025 full-year results: FY2026 initial guidance (key number) + management export pipeline comments + backlog update. If FY2026 OP guidance >¥16B AND export LOI announced, ADD to 15%. If no concrete export progress by end FY2026 (Mar 2027), TRIM — stock likely reverts toward ¥1,500. MHI supply chain: watch for Unit 11+ supply arrangement.
Tokyo Keiki
7721.TMEDIUMSatelliteWeight: 8%
Why this stock
Every new JMSDF surface ship and submarine needs Tokyo Keiki navigation and sensor systems — gyrocompasses, autopilots, fire control. Niche monopoly in naval electronics with 129-year history. FY2025 earnings trough confirmed (NI -35.2% to ~¥2.97B) but defense order backlog at RECORD HIGH — strong forward recovery visibility. Japan FY2026 defense budget ¥9.04T: new Mogami-class (6th ship), Taigei submarine, Awaji minesweeper all require Tokyo Keiki navigation systems. Metro Weather LiDAR partnership (Sep 2025) opens new defense sensor revenue stream. Management raised dividend ¥35→¥40 despite trough earnings — signal of FY2026 confidence.
What could go wrong
1) Earnings trough: FY2025 NI -35.2% confirmed below guidance. FY2026 recovery requires defense order execution. 2) Small-cap (¥88.25B) with low liquidity — market punished stock -30% on trough results. 3) Actual PE ~29.7x on trough earnings is optically expensive — wait for FY2026 recovery confirmation. 4) Metro Weather LiDAR commercialization timeline uncertain — still early stage.
Monitoring trigger
If FY2026 Q1 results (Aug 2026) show EPS recovery toward analyst estimate ~¥241 (+33%), ADD to 10%. If defense order backlog growth slows or budget cuts announced, TRIM. LiDAR: if defense contract >¥1B announced, UPGRADE. Forward PE 22.3x on recovery EPS is the fair entry benchmark.
ACSL Ltd.
6232.TLOWTacticalWeight: 5%
Why this stock
Japan's only TSE-listed pure-play on military unmanned systems. SOTEN drone officially adopted by JASDF (March 2024). FY2025 actual results (Feb 2026): revenue ¥2.598B but operating loss -¥1.84B — still pre-profitability. MAJOR CATALYST: ¥1.42B in new MoD contracts awarded March-April 2026 (¥1.0B March 23 + ¥0.42B April 7) — equal to 54% of FY2025 total revenue. Delivery deadlines Dec 2026 and Dec 2027. Japan government mandate replacing DJI drones for security applications structurally favors ACSL. International expansion: US (Drone Nerds + Exertis Almo), Canada exclusive deal with Draganfly (May 2026). RISK: governance failure (former CEO fraud April 2025, ¥141.8M extraordinary loss). Repeated revenue guidance misses. Still loss-making.
What could go wrong
1) Governance red flag: former CEO Satoshi Washiya resigned April 2025 after fictitious transactions / fund misappropriation. 2) Serial guidance misses: FY2025 actual ¥2.598B vs initial guidance ¥5.1B — company cannot forecast its own business. 3) Q1 FY2026 missed consensus by 44% (-¥72M vs -¥100M ordinary loss — but -¥72M vs -¥16M in Q1 FY2025 — widened YoY). 4) Execution risk: ¥1.42B in delivery by Dec 2026 requires >5x scale-up vs FY2025. Can ACSL actually manufacture this volume? 5) Valuation stretched: P/S 17x on FY2025 revenue, stock +247% YTD by mid-May — concept stock premium already priced in. 6) No US government direct contract despite NDAA compliance and US subsidiary.
Monitoring trigger
IF FY2026 Q2 results show revenue > ¥1.5B (signaling defense deliveries on track), ADD to 7%. IF delivery confirmation announcement for ¥1.0B March contract released in Q4 2026, confirm thesis delivery. IF additional CEO/governance issues emerge, EXIT immediately. IF FY2026 guidance is revised down again, reassess as concept stock — current conviction not warranting increase.
The Japan Steel Works, Ltd.
5631.TMEDIUMSatelliteWeight: 10%
Why this stock
Sole Japanese manufacturer of large-caliber gun barrels (Type 19/99 howitzers, naval guns for Mogami-class FFM). Arms export reform April 21, 2026 — Japan scrapped 5-category restriction on lethal exports, opening Type 19 howitzer and Mogami naval gun barrel markets for the first time since WWII. JSW M&E subsidiary merged April 1, 2026 as Materials & Engineering Division — Muroran plant now unified production base. ATLA railgun program: JSW sole Japanese railgun developer, ship testing underway on JS Asuka (2022-2028 program). 1H FY2026: sales ¥135.7B (+25.3%), OP ¥12.2B (+47.1%). FY2026 guidance: rev ¥290B / OP ¥24.5B. Defense est. <15% of group revenue but policy tailwind accelerating. NOTE: PE CORRECTED — prior 17.3x was incorrect; actual PE 33-38x.
What could go wrong
1) PE 33-38x vs machinery sector avg 12.3x — expensive for <15% defense revenue share. 2) Q3 FY2026 standalone OP -37% YoY, margin 8.1% vs 13.6% — stock -12.9% on Feb 17 miss. 3) FCF negative (op CF -¥4.6B FY2025). 4) Plastic injection molding (largest segment) exposed to CN slowdown. 5) New Muroran defense factory cancelled due to construction cost inflation.
Monitoring trigger
May 13 FY2026 full-year (CORRECTED from May 8): verify OP ¥24.5B + operating CF status. Arms export: watch for Mogami-class or Type 19 export LOI. Railgun: ATLA trials 2027-2035. FY2027 MOD budget: Type 19/99 procurement units. If PE >40x without earnings catch-up, TRIM.
SKY Perfect JSAT Holdings Inc.
9412.TMEDIUMSatelliteWeight: 8%
Why this stock
Japan's only commercial-defense satellite operator — partner in Tri-Sat Constellation SPC with Mitsubishi Electric and Mitsui (executed Feb 19, 2026, with Japan MOD; project value ¥283.1B over 2026-2031). Owns Kirameki / DSN X-band MILSAT family for JMOD (DSN-1/2/3, covering Pacific, Indian Ocean, and Japan) via DSN Corporation JV (with NEC and NTT Communications). Space business revenue +7.9% in FY2025; company guides 30% CAGR in national-security space revenue through 2030, targeting ¥50B defense/security space revenue by FY2031. Japan MOD's stand-off defense doctrine (long-range strike requires resilient ISR and BMC2) makes Kirameki and the Tri-Sat constellation strategically essential. Earnings stable from Media Business (SKY PerfecTV!) cushions space capex cycle.
What could go wrong
1) PE 43.7x is rich — much of stand-off defense optionality is priced in. 2) Tri-Sat is a PFI SPC — JSAT share of ¥283B is split with MELCO and Mitsui; Synspective subcontract alone is ¥105.6B leaving roughly ¥120-140B for the prime consortium over 5 years (~¥25-30B/yr revenue, low standalone margin). 3) Space business margins lower than legacy media business — defense revenue growth dilutes group margin in near term. 4) Media business (pay-TV) is in secular decline as streaming captures share. 5) Satellite construction is capex-heavy and exposed to single-point-of-failure launch risk. 6) Dividend yield only 1.4-2.0% — not a yield play.
Monitoring trigger
Watch FY2026 (year-end Mar 2026) full-year results in May 2026 — confirm space business revenue growth ≥15% and defense-space ≥¥10B. Track Kirameki-3 (DSN-3) operational status and any next-gen MILSAT contract announcements. If Tri-Sat consortium revenue ramps faster than guidance (>¥30B/yr at JSAT level), ADD to 11%. If pay-TV media business loses >5% subs, TRIM. Long-pole catalyst: Japan stand-off missile (Type 12 SSM, Tomahawk) operational deployment from FY2027 — drives MILSAT bandwidth demand.
Howa Machinery, Ltd.
6203.TMEDIUMTacticalWeight: 5%
Why this stock
Sole supplier of standard-issue assault rifles to all three branches of the Japan Self-Defense Forces — manufactures the Howa Type 20 5.56×45mm rifle (adopted 2020, succeeding Type 89). FY2025 MOD budget expanded Type 20 procurement to JMSDF and JASDF: ¥5.4B for 12,907 units (10,000 JGSDF / 205 JMSDF / 2,702 JASDF), at unit cost ¥274K-¥384K. Cumulative procurement ~41,000 units through FY2025; total program target ≥150,000 rifles. PE 10.3x, dividend yield 1.7%, market cap only ¥14.8B — small-cap pure-play on JSDF small-arms modernization. Also manufactures hunting rifles (Howa M1500 OEM'd by Weatherby in US) and machine tools — but defense rifle line is the structural growth driver. Arms export liberalization (April 2026) may unlock small-arms exports to allied SE Asian forces longer term.
What could go wrong
1) Microcap (¥14.8B mkt cap) — limited liquidity, position-sizing risk. 2) Defense (small arms) is only ~10-15% of group revenue; rest is machine tools / auto parts exposed to JP/global capex cycle. 3) Type 20 unit volumes are small in absolute terms — even at 12,907 units/yr peak, contract value <¥6B/yr (modest absolute uplift). 4) JSDF small-arms procurement tied to defense budget — if government changes course, risk to multi-year orders. 5) Howa is a private-sector supplier under tight ATLA cost controls — margin upside capped. 6) Arms export route for small arms more politically sensitive than aerospace; near-term export realization unlikely.
Monitoring trigger
Jan 2026 Q3 earnings already reported; watch May 2026 FY2026 full-year results — check defense order intake. If FY2027 MOD budget further raises Type 20 procurement units, ADD. If group OP margin <5%, TRIM. Long catalyst: any small-arms export announcement post-arms-export-revision (April 2026). Watch JGSDF Type 64 phase-out completion (~2030) for procurement run-rate stabilization.
AI-generated for research purposes only. NOT investment advice. Generated .