OpenAI IPO Closing Market Cap

Most likely right now
No IPO by December 31, 2026
4.086%
EconomyVol $6.9KTotal volume $2.0MLiquidity $87Kin 4 months (Jan 1)
Current probability

Aug 25 · right column is the 24-hour change (pp)

0%50%100%
No IPO by December 31, 2026
85.5%
4.0
1.5T+
5.95%
750B–1T
4.90%
1T–1.25T
4.05%
1.25T–1.5T
1.05%
0.7
500–750B
0.50%
<500B
0.45%

Probability over time

Only one day recorded so far. We record once each morning, so the line starts tomorrow.

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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.