Update 2026-05-27 v2: Universe and scoring are now both real-data-validated via prompts 1-6 synthesis (Gemini Deep Research Prompt 1 + Claude in-chat WebSearch + WebFetch primary research for prompts 2-6). One pure-play public arrival added: SVAC (Spring Valley Acq III, becomes GFUZ on NASDAQ mid-2026 via General Fusion SPAC) — trades TODAY pre-merger. The TMTG-TAE $6B merger is omitted from this matrix by editorial decision (political/ESG flow constraints make it noise relative to its fusion-exposure signal).
Key scoring changes vs v1: MTRN upgraded 64→72 (direct signed beryllium-fluoride supply contract with Commonwealth Fusion Systems, shipments started 2025). CEG upgraded 62→64 (Helion explicitly named CEG as power marketer for Orion plant — real signed business, not pure speculation). BWXT downgraded 60→58 (recent contracts are entirely fission/defense, no specific fusion contract surfaced). ATI/VST/AMAT/GEV all marked-down for untrackable or peripheral fusion signal at their mcap scale.
Structural read: pre-mid-2026 the public universe leans heavily on enablers and utilities with fusion as small-revenue-share exposure (MTRN is the exception). Post mid-2026 the universe gains its first pure-play via the General Fusion SPAC close (Magnetized Target Fusion architecture). Asymmetric private upside still lives in CFS ($5-6B post Series B2), Helion ($5.4B), TAE ($6B implied), Pacific Fusion (undisclosed valuation, $900M Series A General Catalyst lead).
Not financial advice. Not an offer to buy or sell securities. Hover any ticker for synthesis rationale + concept exposure.