Largest private company end of September?
0.1 pts (24h)Corporate ActionsOne-OffAIBusiness & Corporate22d
PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
Anthropic 88.8%+0.5ptLeader of 10 outcomesVig-adjusted: raw venue quotes summed above 100% and were normalized.
Market quality
≤49 / 100
Low quality24h Volume
—
Liquidity
$19.7K
Medium liquiditySpread
2.5 pt
Moderate spreadComments
0
7d Change
-0.1 pts
Market data
Updated 6 minutes ago
Aug 31, 26, 11:23 PM UTCOct 1, 26, 7:00 PM UTC
Trends
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KalshiRules
This market will resolve to the listed company with the largest private market valuation on September 30, 2026.
- 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 all business dates in the specified period by 1:00 PM ET on the calendar date following the specified date, this market may remain open until 11:59 PM ET on the third business day following the specified date.
- If no further data is released by that time, the market will resolve according to the data available.
- If NPM ceases publishing relevant data prior to the specified date, this market will resolve based on the NPM data published prior to the cessation of coverage, as well as applicable public market capitalization data following an IPO or direct listing.
- If a company completes an IPO or direct listing before the specified date, this market will resolve based on its final NPM valuation published between market creation and the IPO or direct listing date, as this market is based on private market valuations only.
Open markets
Corporate ActionsPOLYMARKETAnthropic IPO by which date?
- December 31,-1.0pt90%
- December 15,-1.0pt86%
- November 30,-0.5pt85%
+7 more outcomes
- Total Vol
- $2.7M
- 24h Vol
- $98.9K
KALSHIBoeing commercial airplane deliveries in 2026
- Above 56095%
- Above 580-1.0pt90%
- Above 60086%
+5 more outcomes
- Total Vol
- $214.9K
- 24h Vol
- $48.6K
KALSHIWhen will Tesla and SpaceX merge?
- Before 2028+2.0pt67%
- Before Apr 1, 2027+1.0pt51%
- Before May 1, 2027-1.0pt49%
+8 more outcomes
POLYMARKETLargest IPO by market cap in 2026?
- Anthropic+0.1pt59.4%
- SpaceX-4.0pt38.5%
- OpenAI+0.3pt2.1%
+9 more outcomes
POLYMARKETIsrael Election: Zionist Home & Yashar Run on Same List?
- Yes+49.5pt99%
- No-49.5pt1%
- Total Vol
- $24.7K
- 24h Vol
- $23.6K
KALSHIWhen will Anthropic officially announce an IPO?
- Before Apr 1, 2027+5.0pt97%
- Before Jan 1, 2027+1.0pt96%
- Before Mar 1, 2027-1.0pt94%
+9 more outcomes
- OpenAI IPO Closing Market Cap
- Will GameStop acquire eBay in 2026?
- Anthropic IPO Closing Market Cap
- Will the US acquire part of Greenland in 2026?
- Will Anthropic’s valuation hit __ by December 31?
- Will OpenAI's valuation hit __ by December 31?
- Will GameStop acquire eBay?
- Which companies will be acquired before 2027?
- What will OpenAI's IPO valuation be?
- In which month will Anthropic IPO?
Frequently asked questions
- What are the current odds for Largest private company end of September??
- Polymarket prices Anthropic at 89% as of September 8, 2026.
- When does Largest private company end of September? resolve?
- Largest private company end of September? is scheduled to resolve on October 1, 2026.
- How is Largest private company end of September? settled?
- Polymarket settles this market as follows: This market will resolve to the listed company with the largest private market valuation on September 30, 2026.