PolymarketCheck availabilityNo KYC2% feeVerified resolution dataWell calibratedCurrent implied probability
Morgan Stanley 74%-4.5ptLeader of 9 outcomes
Market quality
40 / 100
Low quality24h Volume
$1.1K
Liquidity
$12.5K
Medium liquidityComments
1
Market data
Updated 3 minutes ago
Jun 1, 26, 9:09 PM UTCDec 31, 27, 11:55 PM UTC
Trends
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Lead Bank in OpenAI's IPO?
PolymarketAnthropic IPO Closing Market Cap
PolymarketWhat will Anthropic's IPO valuation be?
PolymarketAnthropic IPO Closing Market Cap (Middle Brackets)
LimitlessAt what valuation will Anthropic IPO? (buckets within $1-2T)
Manifold MarketsWhen exactly will Anthropic IPO?
Manifold MarketsRules
This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.
- If no IPO occurs by December 31, 2027, 11:59 PM ET, or Anthropic completes an initial public offering without a designated lead underwriter, this market will resolve to “Other.”
- If multiple banks are identified as lead underwriters, this market will resolve according to the primary lead underwriter.
- If the hierarchy between them is unclear, this market will resolve once it is conclusively evident which bank is the primary lead underwriter, for example, through the order in which the banks are listed in the underwriting section of Anthropic’s final initial public offering prospectus, once released.
- The primary resolution source for this market will be official disclosures from Anthropic.
- A consensus of credible reporting may also be used.
Prediction Source Comparison
- Also available on Kalshi — Which bank will lead Anthropic's IPO? · Morgan Stanley 80%
Open markets
AIPOLYMARKETAnthropic IPO by which date?
- December 15,-6.5pt84%
- November 30,-9.0pt82%
- December 31,-10.0pt81%
+7 more outcomes
- Total Vol
- $3M
- 24h Vol
- $69.5K
KALSHIBest AI at the end of 2026?
- Claude+0.7pt70%
- ChatGPT-1.9pt14%
- Grok+1.0pt7%
+5 more outcomes
- Total Vol
- $10.9M
KALSHIWhen will Anthropic officially announce an IPO?
- Before Apr 1, 2027-3.0pt92%
- Before Mar 1, 2027-9.0pt89%
- Before Feb 1, 2027-9.0pt83%
+9 more outcomes
- Total Vol
POLYMARKETOpenAI IPO Closing Market Cap
- No IPO by December 31, 2026+4.8pt98%
- 1.5T+-0.9pt2%
- <500B-0.2pt0%
+4 more outcomes
KALSHIBest AI this week
- Claude91.6%
- ChatGPT+1.0pt1.9%
- Amazon Nova0.9%
+6 more outcomes
- Total Vol
- $83.1K
- 24h Vol
- $40.4K
POLYMARKETWill OpenAI's valuation hit __ by December 31?
- ↑$900B+10.4pt100%
- ↑$1.0T-4.5pt82%
- ↑$1.25T-10.0pt52%
+12 more outcomes
- Will Anthropic’s valuation hit __ by December 31?
- OpenAI IPO by which date?
- Best Chinese AI Company end of September?
- Most popular AI this week
- Anthropic IPO Closing Market Cap
- Best AI in Sep 2026?
- OpenRouter AI token usage: Sep 7–13
- Which companies will officially announce an IPO this year?
- Gemini 4.0 released by which date?
- Will OpenAI or Anthropic IPO first?
- Largest IPO by market cap in 2026?
Frequently asked questions
- What are the current odds for Lead Bank in Anthropic's IPO??
- Polymarket prices Morgan Stanley at 74% as of September 13, 2026.
- When does Lead Bank in Anthropic's IPO? resolve?
- Lead Bank in Anthropic's IPO? is scheduled to resolve on December 31, 2027.
- How is Lead Bank in Anthropic's IPO? settled?
- Polymarket settles this market as follows: This market will resolve according to the bank that serves as the lead underwriter in the initial public offering of Anthropic.
- Where else is Lead Bank in Anthropic's IPO? listed?
- The same question is also listed on Kalshi.