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DISCO Corporation

6146.THIGH

Photonic IC Dicing / Grinding / Polishing · Weight: 8%· Data as of 2026-05-15

¥72,250-2.38%

6-month daily

Investment Thesis

World leader in semiconductor capital equipment for dicing, grinding, and polishing wafers. Essential for photonic IC singulation: cutting individual photonic dies with optical-quality edges (low-loss for waveguides), wafer thinning for 3D stacking (TSMC SoIC-X), CMP-grade polishing for bond interfaces. Xanadu (photonic quantum computing) + DISCO partnership (Aug 2025) explicitly states DISCO machinery is 'essential for photonic chip singulation' and reduces optical losses. With TSMC COUPE entering volume production 2026, photonic die volume multiplies — Nvidia GTC slides cite 100,000+ optical engines per AI factory. Every photonic die passes through DISCO equipment. Comparable position to Lasertec: single-source choke point for advanced semiconductor manufacturing.

Risk

AP01 peak-earnings concern: stock +110% 52w on PE 56x. DISCO TAM is full semiconductor, not just photonic ICs (photonic exposure is sub-segment). Customer concentration in TSMC, Samsung, Intel — same risk as Lasertec.

Monitoring Trigger

If TSMC COUPE production milestones slip beyond 2026 H2, DISCO's photonic-IC ramp delays. If a major OSAT (ASE, Amkor, SPIL) announces in-house dicing capability, supply-side pressure. Watch DISCO quarterly equipment shipment commentary for 'advanced packaging' or 'photonic IC' segment mentions.

Key Dates

2026-H2catalystTSMC COUPE volume production ramp = photonic IC dicing equipment orders

2026-Q2earningsQ2 results

Key Metrics

42.6

Fwd PE

N/A

P/B

N/A

ROE

N/A

Op Margin

N/A

D/E

0.69%

Div Yield

N/A

FCF

¥7.59T

Mkt Cap

Business Segments

Segment	Revenue	Share	Description
Precision processing equipment	Major	Major	Dicing saws, laser saws, grinders, polishers for semiconductor wafers.

Supply Chain Evidence

Evidence	Customer	Product	Detail
confirmed	Xanadu (photonic quantum computing)	Wafer dicing equipment for ultra-low-loss photonic integrated circuits	Aug 2025 collaboration announcement; DISCO machinery essential for photonic chip singulation, reducing optical losses and eliminating manual polishing.[source](2025-08)
probable	TSMC / Samsung / Intel (advanced packaging)	Dicing + grinding + polishing equipment for SoIC-X 3D hybrid bonding	Industry-standard supplier for advanced packaging dicing. TSMC COUPE SoIC-X 2026 production drives equipment volume.[source](2025-12)
probable	OSATs (ASE, Amkor, SPIL)	Dicing saws + grinders for chip-scale packaging	Long-standing OSAT supplier globally.[source](Multi-year)

Sources & References

↗StockAnalysishttps://stockanalysis.com/quote/tyo/6146/↗DISCO productshttps://www.disco.co.jp/eg/products/↗Xanadu-DISCO photonic quantum partnershiphttps://thequantuminsider.com/2025/08/13/xanadu-and-disco-announce-collaboration-advanced-photonic-quantum-computing-0001 ↗SemiAnalysis DISCO overviewhttps://newsletter.semianalysis.com/p/disco-corporation-the-world-leader

Peer Comparison

Company	PE	Fwd PE	ROE	Op Margin	FCF
Hamamatsu Photonics	50.4	42.5	N/A	17.8%	N/A
Lasertec Corporation	44.1	41.1	N/A	N/A	N/A
USHIO INC.	59.6	29.6	N/A	N/A	N/A
Fujikura	87.7	84.2	24.4%	N/A	N/A
Furukawa Electric	65.7	65.8	N/A	N/A	N/A
Sumitomo Electric Industries	34	23.9	N/A	N/A	N/A
HORIBA	27.5	23.7	N/A	N/A	N/A
Mitsubishi Electric	32.5	27.5	N/A	N/A	N/A
Anritsu Corporation	45.4	37.5	N/A	N/A	N/A
NTT, Inc.	11.9	11.6	N/A	N/A	N/A
Fujitsu Limited	18.9	19	N/A	N/A	N/A
NEC Corporation	19.95	18.2	N/A	N/A	N/A
DISCO Corporation	56	42.6	N/A	N/A	N/A
TOWA Corporation	45.2	24	N/A	N/A	N/A