Prediction market traders say an Anthropic IPO is near-certain this year after company filed with SEC
Anthropic on Monday filed its Form S-1 with the Securities and Exchange Commission.

TL;DR
- Prediction market traders on Kalshi have assigned over 90% odds that Anthropic will officially announce its IPO this year.
- Anthropic filed its Form S-1 with the Securities and Exchange Commission, providing insight into its financials.
- The S-1 filing is seen as a significant step towards Anthropic's long-awaited move to public markets.
- The envisioned Nasdaq ticker symbol for Anthropic is "ANT."
- Traders on Kalshi and Polymarket have varying, but generally high, probabilities for Anthropic beginning to trade on a public exchange by November 2026 or November 20.
- CNBC and Kalshi have a commercial relationship.