References 365% CONFIDENCEOverall confidence: 65%How well the pin's source and references back up its dates.Weighted average of how firmly 3 references, the source included, support the pin's start and end times; a reference counts half as much for every 180 days older than the newestShow all pins from 50% to 74% confidence
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]50%kalshi.com/markets/kxipoopenai/when-will-openai-announce-ipo/kxipoopenaikalshi.com· Posted Sep 20, 2026· Starts Feb 28, 2027 ✓· 33% of score
A "by when" market with no scheduled event behind it. February 2027 carries the largest month-on-month jump among the rungs below that block — 12% before February 1 rising to 39% before March 1, 27 points — and a month-only date takes its last day. The April strike (70%) is quoted above both May (49%) and June (61%), so the top of the ladder is out of order and was not used. All figures are the chance the strike list shows, not the Yes price in cents.
- [2]75%Kalshi: When will Anthropic officially announce an IPO?kalshi.com· Added Sep 20, 2026· 33% of score
Anthropic’s ladder on the same exchange is the benchmark this one is read against, and it is months ahead at 74% before January 2027.[1]
- [3]75%Access IPOs Podcast #77: Anthropic IPO Countdown — The Latest Progress + OpenAI IPO Delayedpodcasts.apple.com· Published Sep 19, 2026· 33% of score
The September 19, 2026 episode reports the OpenAI IPO as delayed while Anthropic counts down, matching a Kalshi[1][2] book that gives OpenAI only 5% before January 2027.
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