ASML's €1.3 billion Mistral stake is worth about €2.3 billion on paper, and still no euro figure for the work
Six days after Jefferies called the Mistral collaboration operational, ASML shareholders hold a paper gain of roughly €1 billion on a lab with no published price, no audited revenue and a flagship that loses to free Chinese models on cost.
Vincent Jiangthree-minute read
On November 6 a Jefferies−0.50% — Jefferies, down 0.50 percent today analyst put a working claim on a deal the market had treated as a ceremony: Mistral AI$14B — Mistral AI, private, latest valuation $14B is already processing lithography-system data to tune ASML's+0.06% — ASML, up 0.06 percent today chipmaking machines, running test sequences, software testing and troubleshooting 2. ASML is the only company on earth that sells the EUV lithography machines the leading-edge chips are printed on, and it had signed a long-term AI collaboration with the Paris lab alongside its September 2025 investment 2. Neither side has published a contract value, a price or an hours-saved figure.
The €1.3 billion check, re-marked
ASML led Mistral's September 2025 round, putting in €1.3 billion for an 11% stake at a €11.7 billion valuation 1. On September 8, 2026 Mistral raised €3 billion in a Series D at a post-money valuation above €21 billion, nearly double the year before, led by Samsung with ASML, Nvidia−5.72% — Nvidia, down 5.72 percent today and Salesforce+1.95% — Salesforce, up 1.95 percent today returning 1. On that mark ASML's 11% is worth roughly €2.3 billion on paper: about €1 billion of unrealised gain on a check written before the lab had audited revenue 1.
Mistral's mark more than tripled in 27 months, to above €21 billion
- Post-money valuation
- Estimate
Data
| Post-money valuation | |
|---|---|
| Jun 2024 | €5.8B |
| Sep 2025 | €11.7B |
| Sep 2026 (estimate) | €21B |
What the work actually is
Mistral's own customer story names the tasks: diagnostic-log analysis to find root causes, AI agents for software reliability and early detection of downstream issues, and automation of technical documentation 2. Useful engineering work, described in adjectives. The receipts stop where a euro figure would start.
The problem with the €21 billion
Mistral's only revenue anchor is a company forecast that annual recurring revenue will exceed $1 billion this year from more than 125 enterprise customers; that is a forecast, not audited revenue 1. Its flagship model scores 26 on Artificial Analysis' Intelligence Index v5, the best of any open-weight model built outside China but six points behind China's DeepSeek V4.1 Flash and GLM-5.3, both at 32 3.
It costs $2.06 per benchmark task where DeepSeek measures $0.60, free to run for the same banks Mistral courts 3. The counter-argument is sovereignty: Banque de France plans a Mistral rollout on a sovereign cloud under its 2028 roadmap 5, and Orange Cyberdefense signed on as Mistral's first European security design partner with compute kept in Europe 4. Sovereignty is a real product. No contract has priced it.
Where a number can appear
ASML reported record third-quarter results on October 14, 2026, €11.7 billion in net sales and €5.0 billion net income, and its calendar puts the Q4 2026 release on January 26, 2027 6. That filing is the first place a Mistral euro figure can show up in a listed company's accounts. Until then, ASML is the only liquid way to own a slice of Europe's frontier lab, and the productivity claim is an unpriced option: a stake marked on a forecast, a partnership praised in a note, and not one number either side has put its name to.
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