Anthropic’s Nasdaq debut could draw about $250 million of net retail buying, twice SpaceX’s IPO record of $118 million, Vanda Research said in a note on Wednesday, Reuters reported on 11 November.
That trading-day estimate is small next to what retail investors can be allocated before trading starts: Anthropic’s amended IPO filing expects retail allocations of up to 20% of the 825,000,000 shares offered, up to 165 million shares, or about $11.55 billion to $12.87 billion at the $70 to $78 range, by our arithmetic.
Business Pill · IPO Float
A short explainer on IPO float, the share of a company sold in its listing. It teaches the general idea and does not discuss Anthropic’s offering.
The key insight: As we read it, the retail story has two layers: the IPO allocation, where Anthropic’s filing allows up to 165 million shares, about $12.21 billion at the midpoint, by our arithmetic, and the first day of trading, where Vanda Research expects about $250 million of net retail buying, twice SpaceX’s record, according to Reuters.
According to the Reuters report, the research firm based its estimate on its analysis of retail activity on listing days and on the volume of Anthropic’s pre-IPO perpetual futures traded on Hyperliquid. Reuters describes those contracts as derivatives that let traders bet on a private company’s valuation, with no direct link to the underlying shares.
“Judging by pre-IPO perp trading, Anthropic is shaping up to be a record retail IPO”, Viraj Patel, global macro strategist at Vanda Research, said in the note, according to Reuters.
Vanda added that only six stocks have topped $250 million in single-day retail buying since 2024. “Anthropic next week could draw the kind of retail buying that we’ve rarely seen in our data”, the firm said. Reuters reported that Anthropic is targeting a valuation of up to $1.4 trillion, with shares expected to start trading on the Nasdaq on 19 November.
Net retail buying on the listing day: Vanda Research’s estimate of about $250 million for Anthropic’s debut against SpaceX’s $118 million IPO record, as reported by Reuters on 11 November 2026. The ratio of about 2.1 times is our arithmetic.
What Anthropic’s Filing Says
Anthropic’s Amendment No. 2 to its S-1, filed with the SEC on 10 November, says: “In the aggregate, we currently expect allocations to retail investors, both in the United States and in other countries, to represent up to 20% of the shares of Class A common stock offered pursuant to this prospectus, though final amounts will be based on actual demand in the offering.”
The filing names six US platforms as selling group members, Charles Schwab, Fidelity, Robinhood, Trade-PMR, SoFi and E*TRADE from Morgan Stanley, and says purchases through them will be at the IPO price. It also describes a European retail offering under a separate prospectus expected to be approved by the German Federal Financial Supervisory Authority. Its first amendment, of 2 November, named the same platforms without the up-to-20% sentence.
Anthropic’s 825,000,000-share offering and the retail ceiling of up to 20%% in its S-1/A of 10 November 2026. Share counts are our arithmetic; the filing says final amounts will be based on actual demand.
Our Numbers
Up to 20% of 825,000,000 shares is up to 165 million shares. At $70, $74 and $78 a share that is about $11.55 billion, $12.21 billion and $12.87 billion, by our arithmetic.
Vanda’s $250 million is about 2.1 times SpaceX’s $118 million and about 2% of the $12.21 billion midpoint ceiling, which is about 49 times larger, by our arithmetic.
The two figures measure different things. The filing’s ceiling is shares allocated to retail investors at the IPO price before trading begins. Vanda’s estimate, as Reuters describes it, is net retail buying in the market on the debut.
The Structural Read
As we read the filing, retail access is now written into the deal: the up-to-20% sentence first appears in the second amendment of 10 November, alongside six named US platforms and a separate European retail prospectus.
As we read the Reuters report, Vanda’s estimate rests on market signals rather than orders: past listing-day retail activity and the volume of pre-IPO perpetual futures on Hyperliquid, contracts with no direct link to the shares.
Viraj Patel, global macro strategist at Vanda Research, as quoted by Reuters, 11 November 2026
“Judging by pre-IPO perp trading, Anthropic is shaping up to be a record retail IPO”
Three Implications
FOR RETAIL INVESTORS The filing says purchases through the six platforms will be at the IPO price, and that final retail amounts will be based on actual demand in the offering.
FOR THE DEBUT Vanda says only six stocks have topped $250 million in single-day retail buying since 2024, according to Reuters.
FOR SCALE At the $74 midpoint the retail ceiling is about 49 times Vanda’s day-one estimate, by our arithmetic.
The framework records: “the capex race is no longer a corporate spending cycle. It is a sovereign-scale financing problem dressed in tech-company clothing”.
As we read it, opening up to a fifth of an offering of up to $64.35 billion to retail investors widens who takes part in that financing. The framework predates the IPO and does not discuss it.
What Is Not Established
The Reuters report we read does not name the six stocks above $250 million or give the SpaceX listing date, and we did not read the Vanda note itself. The estimate is a forecast from trading data, not an order count.
The filing’s 20% is a ceiling: it says final amounts will be based on actual demand. The IPO price is not set; the range in the 10 November filing is $70 to $78.
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Vanda Research expects about $250 million of net retail buying on Anthropic’s debut, twice SpaceX’s $118 million record, according to Reuters. Anthropic’s filing allows up to 165 million shares, about $11.55 billion to $12.87 billion at the range, to go to retail investors before trading starts, by our arithmetic.
A note on sourcing. We read the Reuters report on the Vanda Research note in full, as published by CNA on 11 November 2026, and Anthropic’s Amendment No. 2 to its S-1 as filed with the SEC on 10 November, which we compared with its first amendment of 2 November. We did not read the Vanda note itself; its figures are as Reuters reported them. Share counts, dollar values and ratios are our arithmetic. We did not contact Anthropic or Vanda Research for this piece.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur (for example, How to Digitize a Family Business in Europe) and HackerNoon. Find him on LinkedIn and Substack. See how we source.
