Goldman Sachs holds a 61.5% implied probability of serving as lead-left underwriter on Anthropic’s IPO, ahead of Morgan Stanley at 35.5%, reflecting their June 2026 selection as the top bookrunners alongside JPMorgan following the company’s confidential S-1 filing. Both banks command dominant shares of recent large-cap technology offerings and are competing intensely for the higher-visibility, higher-fee lead-left position on what could rank among the largest IPOs on record. Anthropic’s $965 billion post-Series H valuation, $47 billion revenue run-rate by May, and preparations for an October Nasdaq listing have kept syndicate dynamics fluid, with later reports noting potential expansion of the top-tier group. Trader consensus prices the contest between the two firms while assigning negligible odds to other banks.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedGoldman Sachs 62%
Morgan Stanley 36%
JPMorgan 2.6%
Barclays <1%
$51,153 Vol.
$51,153 Vol.
Morgan Stanley
36%
Goldman Sachs
62%
JPMorgan
3%
Bank of America
<1%
Citigroup
<1%
Barclays
1%
UBS
<1%
Deutsche Bank
<1%
Wells Fargo
<1%
Goldman Sachs 62%
Morgan Stanley 36%
JPMorgan 2.6%
Barclays <1%
$51,153 Vol.
$51,153 Vol.
Morgan Stanley
36%
Goldman Sachs
62%
JPMorgan
3%
Bank of America
<1%
Citigroup
<1%
Barclays
1%
UBS
<1%
Deutsche Bank
<1%
Wells Fargo
<1%
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.
Market Opened: Jun 1, 2026, 5:06 PM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...Goldman Sachs holds a 61.5% implied probability of serving as lead-left underwriter on Anthropic’s IPO, ahead of Morgan Stanley at 35.5%, reflecting their June 2026 selection as the top bookrunners alongside JPMorgan following the company’s confidential S-1 filing. Both banks command dominant shares of recent large-cap technology offerings and are competing intensely for the higher-visibility, higher-fee lead-left position on what could rank among the largest IPOs on record. Anthropic’s $965 billion post-Series H valuation, $47 billion revenue run-rate by May, and preparations for an October Nasdaq listing have kept syndicate dynamics fluid, with later reports noting potential expansion of the top-tier group. Trader consensus prices the contest between the two firms while assigning negligible odds to other banks.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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