Will Anthropic or OpenAI IPO first?
Part of: Will Anthropic or OpenAI IPO first?. Crowd probability estimates from prediction markets, not financial advice.
Probability history
Gridlines at 25, 50 and 75 percent. History covers the recorded price path of the YES outcome.
Resolution criteria
This market will resolve to "Anthropic" if Anthropic completes an Initial Public Offering (IPO) before OpenAI completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. This market will resolve to "OpenAI" if OpenAI completes an Initial Public Offering (IPO) before Anthropic completes an IPO by December 31, 2027, 11:59 PM ET, as confirmed by official company announcements and credible news sources. This market will resolve 50-50 if: - Neither company completes an Initial Public Offering (IPO) by December 31, 2027, 11:59 PM ET; - Both companies complete an IPO on the same calendar date (ET); or - By December 31, 2027, 11:59 PM ET, both companies become unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded. The IPO refers to the first sale of stock by the listed company to the public on any recognized stock exchange. The resolution source for this market is a consensus of credible reporting.
Source: Polymarket via the public gamma API, synced by Kresmion. Last updated 2026-07-15 00:23 UTC. Trade on the venue itself: this page is research context, not an order book. Percentages are YES prices and can move fast.