Meta's current $1.55 trillion market capitalization, supported by 33% year-over-year revenue growth in Q1 2026 and expanding AI-driven advertising efficiencies, underpins the 58.5% market-implied probability that it will hold a higher valuation than OpenAI by year-end. Traders weigh Meta's proven scale and cash-flow generation against OpenAI's March 2026 funding round at an $852 billion post-money valuation, which reflects rapid private-market momentum but also ongoing losses and an uncertain IPO timeline. Heavy AI infrastructure spending at Meta, projected to reach $115-135 billion for 2026, introduces margin pressure yet signals competitive positioning in frontier models, creating a narrow contest where sustained ad monetization or OpenAI's next capital raise could shift the edge.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedOpenAI
OpenAI
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 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 the private 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 the private company is NPM data published 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 OpenAI's valuation is equal to Meta's public market capitalization 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, 2:42 PM ET
Resolver
0x65070BE91...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 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 the private 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 the private company is NPM data published 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 OpenAI's valuation is equal to Meta's public market capitalization 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.
Resolver
0x65070BE91...Meta's current $1.55 trillion market capitalization, supported by 33% year-over-year revenue growth in Q1 2026 and expanding AI-driven advertising efficiencies, underpins the 58.5% market-implied probability that it will hold a higher valuation than OpenAI by year-end. Traders weigh Meta's proven scale and cash-flow generation against OpenAI's March 2026 funding round at an $852 billion post-money valuation, which reflects rapid private-market momentum but also ongoing losses and an uncertain IPO timeline. Heavy AI infrastructure spending at Meta, projected to reach $115-135 billion for 2026, introduces margin pressure yet signals competitive positioning in frontier models, creating a narrow contest where sustained ad monetization or OpenAI's next capital raise could shift the edge.
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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