Prediction markets put the probability at 82%: Will Anthropic IPO by December 31, 2026. Currently, markets see this as likely (82% YES). Anthropic targets October IPO amid competition with OpenAI.
Anthropic has formally initiated its path to the public markets, having confidentially filed a draft S-1 with the U.S. Securities and Exchange Commission on June 1, 2026, with Freshfields advising on the process. This filing follows the company’s earlier engagement of law firm Wilson Sonsini in December 2025 to prepare for a potential listing, and comes as the AI firm negotiates a private funding round that could push its valuation past the $300 billion mark. The confidential submission positions Anthropic to target an October 2026 debut, a timeline that would place it ahead of rival OpenAI, which is contemplating a potential delay to 2027 amid market uncertainties [Axios, Jun 01].
The race to list carries significant weight for the broader technology sector, as Anthropic, OpenAI, and SpaceX are all pursuing IPOs that could collectively bring three trillion-dollar valuations to U.S. exchanges—a feat never previously achieved. SpaceX is expected to list first, with a record-breaking offering projected to raise over $75 billion on June 12, 2026, while Anthropic and OpenAI compete for the second slot. The market has responded with strong conviction in an Anthropic IPO by year-end 2026, with the current probability standing at 82% YES versus 18% NO, reflecting confidence in the company’s execution timeline despite the complexity of the filing process [Crypto Briefing, Jul 06].
Looking ahead, the critical milestones for the Anthropic IPO will be the SEC’s review of its S-1 and the company’s ability to demonstrate sustained revenue growth in a competitive AI landscape. The October target aligns with a window that avoids the late-year holiday slowdown, though any regulatory delays or market volatility could push the listing closer to the December 31, 2026 deadline. Historical precedent suggests that companies filing confidentially typically take four to six months to complete the IPO process, which would place Anthropic’s debut squarely within the fourth quarter if the SEC review proceeds without extended comment periods. The company’s dual backing from Alphabet’s Google and Amazon provides financial stability, but the final pricing and valuation will depend on prevailing market conditions for AI equities at the time of the roadshow [Free Malaysia Today, Dec 03].
Polymarket prices this at 82c YES with $358K in volume. Moderate liquidity — use limit orders for positions above $1K to avoid moving the price.
2 smart wallets positioned NO.
We tracked 2 wallets with positions above $1K on this market.
| Wallet | Category | Side | Amount | P&L | |
|---|---|---|---|---|---|
| 0x7c3d..6b | MM | YES | $2.1K | +12% | |
| 0x0845..6f | MM | YES | $1.2K | +24% |
YES wallets entered between 66c–74c. At current price 82c, all YES holders are profitable while all NO buyers are underwater. Profitable positions rarely sell early — YES side has structural price support.
Polymarket prices YES at 82c with $358K in total volume. Our model estimates fair value at 82c. Model and market are aligned — no pricing discrepancy detected.
| Platform | YES Price | Volume |
|---|---|---|
| Polymarket | 82c | $358K |
| Our Model | 82c | — |