Will OpenAI’s valuation be between $800B and $900B at the end of September 2026?
What resolves this contract
This market will resolve according to OpenAI's private market valuation, as measured by the NPM Price reported by Nasdaq Private Market, LLC (NPM) for the last trading day of the specified month. If the determined value falls exactly on the boundary between two brackets, this market will resolve to the higher bracket. NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day. If NPM has not published relevant data for the last trading day of the specified month by 1:00 PM ET on the day following the last trading day of the specifie
How to read the price
Prediction market prices are expressed in cents on the dollar. A YES contract trading at 31¢ means the market is pricing in a 31.5% implied probability of the event resolving YES. If resolution comes back YES, the contract pays $1. If NO, it pays $0.
Volume vs. open interest
Total traded volume ($9,655) reflects every buy and sell across the life of this contract. Open interest ($735) is the dollar value of positions currently held by traders. Deep liquidity and wide open interest are the two signals that the quoted price is reliable.
Where to trade this market
This contract is listed on Polymarket. PicksByOdds does not accept deposits, execute trades, or offer brokerage. We publish the data; you decide what to do with it.
Similar markets on the US-regulated exchange
Kalshi lists related contracts US traders can legally access. Spread is typically similar; liquidity varies.
Markets in the same story
| Market | YES | Volume |
|---|---|---|
| Will OpenAI IPO by December 31 2026? | 5¢ | $998,426 |
| Will Lovable be acquired before 2027? | 6¢ | $982,356 |
| Will the Doge-1 Lunar Mission launch by December 31, 2026? | 2¢ | $982,272 |
Common questions about this market
How is this market resolved?
This market will resolve according to OpenAI's private market valuation, as measured by the NPM Price reported by Nasdaq Private Market, LLC (NPM) for the last trading day of the specified month. If the determined value falls exactly on the boundary between two brackets, this market will resolve to the higher bracket. NPM Prices are published for trading days only and are updated once daily at 1:00 PM ET on the following calendar day. If NPM has not published relevant data for the last trading day of the specified month by 1:00 PM ET on the day following the last trading day of the specifie
When does this contract expire?
This contract closes on 2026-09-30, 16 days from now. After close, the final outcome is determined per the resolution rules above, and contracts settle at $1 (winning side) or $0 (losing side).
What happens if I buy YES at 31¢?
If the event resolves YES, each YES contract pays $1, a profit of 68¢ per dollar risked. If it resolves NO, the contract pays $0 and the full 31¢ is lost. Current market price implies a 31.5% probability of YES.
Where is this market listed?
This contract is listed on Polymarket. PicksByOdds aggregates and displays public market data; we do not broker trades or custody funds.
How reliable is the quoted price?
This market has $9,655 in total traded volume and $735 in open interest. Deeper liquidity generally means tighter spreads and more reliable implied probabilities. Prices refresh multiple times per day.