Anthropic's recent Series H round at a $965 billion post-money valuation in May 2026, surpassing OpenAI's reaffirmed $852 billion from its March primary raise and August tender offer, anchors trader consensus on the December 31 outcome. Stronger revenue momentum supports this positioning, with Anthropic's annualized run rate reaching $47–65 billion versus OpenAI's roughly $25–40 billion, driven by enterprise adoption of Claude and usage-based pricing. Secondary market signals, including shares trading near levels implying over $1 trillion, and Anthropic's confidential S-1 filing position it for a potential autumn IPO targeting up to $2 trillion, ahead of OpenAI's 2027 timeline. While macroeconomic volatility or delayed listings could narrow the gap, current capital allocation and growth differentials sustain the 94.5% market-implied probability for Anthropic.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedAnthropic
95% chance
$54,789 Vol.
$54,789 Vol.
Jan 1, 2027
Anthropic
95% chance
$54,789 Vol.
$54,789 Vol.
Jan 1, 2027
This market will resolve to the listed company with the larger private market valuation, as measured by the final NPM Price reported by Nasdaq Private Market, LLC (NPM), for December 31, 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 the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.Anthropic's recent Series H round at a $965 billion post-money valuation in May 2026, surpassing OpenAI's reaffirmed $852 billion from its March primary raise and August tender offer, anchors trader consensus on the December 31 outcome. Stronger revenue momentum supports this positioning, with Anthropic's annualized run rate reaching $47–65 billion versus OpenAI's roughly $25–40 billion, driven by enterprise adoption of Claude and usage-based pricing. Secondary market signals, including shares trading near levels implying over $1 trillion, and Anthropic's confidential S-1 filing position it for a potential autumn IPO targeting up to $2 trillion, ahead of OpenAI's 2027 timeline. While macroeconomic volatility or delayed listings could narrow the gap, current capital allocation and growth differentials sustain the 94.5% market-implied probability for Anthropic.
This market will resolve to the listed company with the larger private market valuation, as measured by the final NPM Price reported by Nasdaq Private Market, LLC (NPM), for December 31, 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 the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
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 specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
Market Opened: May 19, 2026, 4:24 PM ET
Volume
$54,789End Date
Jan 1, 2027Market Opened
May 19, 2026, 4:24 PM ETResolver
0x65070BE91...This market will resolve to the listed company with the larger private market valuation, as measured by the final NPM Price reported by Nasdaq Private Market, LLC (NPM), for December 31, 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 the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.Anthropic's recent Series H round at a $965 billion post-money valuation in May 2026, surpassing OpenAI's reaffirmed $852 billion from its March primary raise and August tender offer, anchors trader consensus on the December 31 outcome. Stronger revenue momentum supports this positioning, with Anthropic's annualized run rate reaching $47–65 billion versus OpenAI's roughly $25–40 billion, driven by enterprise adoption of Claude and usage-based pricing. Secondary market signals, including shares trading near levels implying over $1 trillion, and Anthropic's confidential S-1 filing position it for a potential autumn IPO targeting up to $2 trillion, ahead of OpenAI's 2027 timeline. While macroeconomic volatility or delayed listings could narrow the gap, current capital allocation and growth differentials sustain the 94.5% market-implied probability for Anthropic.
This market will resolve to the listed company with the larger private market valuation, as measured by the final NPM Price reported by Nasdaq Private Market, LLC (NPM), for December 31, 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 the specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
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 specified date by 1:00 PM ET on January 1, 2027, this market may remain open until 11:59 PM ET on January 4, 2027. If no further data is released by that time, the market will resolve according to the latest available data.
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 according to the company's public market capitalization at the market close of the specified date or the most recent trading day.
Public market capitalization will be determined using the final official regular-hours trading price published for the company's primary listed common equity on its primary exchange for the specified date or the most recent trading day, multiplied by the company's total outstanding common shares at the relevant time.
If a listed company merges with or acquires another entity and remains the parent company, no change to resolution methodology applies.
If a listed company is acquired, merges into another entity and is no longer the surviving parent company, or otherwise ceases to exist as an independent entity prior to the end of the period, only the NPM valuation and applicable public market capitalization achieved prior to completion of the transaction will be considered for resolution. No transaction, acquisition, or merger consideration will be considered for resolution.
The resolution source for this market is NPM data published here (https://fe.secondmarket.com/companies/company-3e197763-4ff8-4d8c-bd1f-cc2792937757/data?return_url=https://polymarket.com/finance/privates) and here (https://fe.secondmarket.com/companies/company-30839e0b-2730-4495-839f-1bf638fa9cca/data?return_url=https://polymarket.com/finance/privates). The resolution source for any period following an IPO, direct listing, or relevant corporate action, will be official exchange trading data and publicly reported share counts.
If Anthropic's valuation is equal to OpenAI's valuation at resolution, this market will resolve to 50-50.
Revisions to previously published NPM data made after their initial release will not be considered, unless made to correct clearly erroneous data.
Volume
$54,789End Date
Jan 1, 2027Market Opened
May 19, 2026, 4:24 PM ETResolver
0x65070BE91...Anthropic's recent Series H round at a $965 billion post-money valuation in May 2026, surpassing OpenAI's reaffirmed $852 billion from its March primary raise and August tender offer, anchors trader consensus on the December 31 outcome. Stronger revenue momentum supports this positioning, with Anthropic's annualized run rate reaching $47–65 billion versus OpenAI's roughly $25–40 billion, driven by enterprise adoption of Claude and usage-based pricing. Secondary market signals, including shares trading near levels implying over $1 trillion, and Anthropic's confidential S-1 filing position it for a potential autumn IPO targeting up to $2 trillion, ahead of OpenAI's 2027 timeline. While macroeconomic volatility or delayed listings could narrow the gap, current capital allocation and growth differentials sustain the 94.5% market-implied probability for Anthropic.
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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Frequently Asked Questions