OpenAI IPO Closing Market Cap

Polymarket traders put "1.5T+" at 58.2% on "OpenAI IPO Closing Market Cap". Down 1.7%p from yesterday. $13K traded in the last 24 hours. There are 7 possible outcomes. It resolves on Jan 1.

Most likely right now
1.5T+
▼1.758%
EconomyVol $13KTotal volume $448KLiquidity $116Kin 1.2 years (Jan 1)
Current probability

Oct 9 · right column is the 24-hour change (pp)

0%50%100%
1.5T+
58.2%
▼1.7
No IPO by December 31, 2027
23.4%
–
1.25T–1.5T
9.50%
▲1.0
1T–1.25T
4.05%
▲0.7
750B–1T
2.65%
–
<500B
2.30%
–
500–750B
1.80%
–

Probability over time

1.5T+
No IPO by December 31, 2027
1.25T–1.5T
1T–1.25T
750B–1T
<500B
02550751008/259/69/139/209/2710/410/9
2026-08-25 ~ 2026-10-09 · y-axis %

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Probabilities are Polymarket trade prices, formed by participants betting real money. They are not official forecasts and are a poor basis for investment decisions.