SpaceX leads the implied probabilities at 64.5% for the largest 2026 IPO by market cap, reflecting its elevated private valuation and operational scale in aerospace and satellite communications that position it for a sizable public debut. Anthropic at 36.1% and xAI at 25.5% trail, supported by substantial venture funding and AI-driven growth trajectories that have expanded their enterprise values, though both face longer paths to IPO readiness compared with SpaceX. Lower odds for OpenAI and others underscore valuation gaps and timing uncertainties. Equity market conditions, Treasury yields, and regulatory pathways for large offerings remain key swing factors that could alter these trader-consensus probabilities ahead of potential 2026 filings.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLargest IPO by market cap in 2026?
Largest IPO by market cap in 2026?
SpaceX 65%
Anthropic 36.0%
OpenAI <1%
Discord <1%
$5,531,770 Vol.
$5,531,770 Vol.
Dec 30, 2026
SpaceX
65%
Anthropic
36%
OpenAI
1%
Discord
<1%
ByteDance
<1%
Stripe
<1%
Kraken
<1%
SHEIN
<1%
Waymo
<1%
Revolut
<1%
Perplexity AI
<1%
Databricks
<1%
SpaceX 65%
Anthropic 36.0%
OpenAI <1%
Discord <1%
$5,531,770 Vol.
$5,531,770 Vol.
Dec 30, 2026
SpaceX
$785,582 Vol.
65%
Anthropic
$826,727 Vol.
36%
OpenAI
$489,805 Vol.
1%
Discord
$176,734 Vol.
<1%
ByteDance
$213,392 Vol.
<1%
Stripe
$129,177 Vol.
<1%
Kraken
$656,963 Vol.
<1%
SHEIN
$583,615 Vol.
<1%
Waymo
$318,150 Vol.
<1%
Revolut
$633,436 Vol.
<1%
Perplexity AI
$104,136 Vol.
<1%
Databricks
$614,055 Vol.
<1%
This market will resolve to the company that achieves the highest market capitalization in U.S. dollars based on the official closing price on its first trading day in 2026.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.SpaceX leads the implied probabilities at 64.5% for the largest 2026 IPO by market cap, reflecting its elevated private valuation and operational scale in aerospace and satellite communications that position it for a sizable public debut. Anthropic at 36.1% and xAI at 25.5% trail, supported by substantial venture funding and AI-driven growth trajectories that have expanded their enterprise values, though both face longer paths to IPO readiness compared with SpaceX. Lower odds for OpenAI and others underscore valuation gaps and timing uncertainties. Equity market conditions, Treasury yields, and regulatory pathways for large offerings remain key swing factors that could alter these trader-consensus probabilities ahead of potential 2026 filings.
This market will resolve to the company that achieves the highest market capitalization in U.S. dollars based on the official closing price on its first trading day in 2026.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Market Opened: Feb 2, 2026, 5:32 PM ET
Volume
$5,531,770End Date
Dec 31, 2026Market Opened
Feb 2, 2026, 5:32 PM ETResolver
0x2F5e3684c...This market will resolve to the company that achieves the highest market capitalization in U.S. dollars based on the official closing price on its first trading day in 2026.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.SpaceX leads the implied probabilities at 64.5% for the largest 2026 IPO by market cap, reflecting its elevated private valuation and operational scale in aerospace and satellite communications that position it for a sizable public debut. Anthropic at 36.1% and xAI at 25.5% trail, supported by substantial venture funding and AI-driven growth trajectories that have expanded their enterprise values, though both face longer paths to IPO readiness compared with SpaceX. Lower odds for OpenAI and others underscore valuation gaps and timing uncertainties. Equity market conditions, Treasury yields, and regulatory pathways for large offerings remain key swing factors that could alter these trader-consensus probabilities ahead of potential 2026 filings.
This market will resolve to the company that achieves the highest market capitalization in U.S. dollars based on the official closing price on its first trading day in 2026.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
This market will resolve to a company that completes an Initial Public Offering (IPO) between January 1 and December 31, 2026, 11:59 PM ET.
Market capitalization is defined as the total number of outstanding shares multiplied by the closing share price on the first trading day.
If two or more companies have exactly equal highest closing market capitalizations, this market will resolve to the company whose listed name comes first alphabetically.
Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used.
In case the respective company's primary exchange’s official listing page does not report in U.S. dollars, it will be converted to U.S. dollars using the U.S. Federal Reserve Board’s H.10 foreign exchange reference rate for the relevant currency pair on the company’s first trading day (https://www.federalreserve.gov/releases/h10/). If no such rate is available for the relevant trading day, the most recent previously published rate will be used. If the relevant currency is not listed, another credible exchange rate source will be used.
A listed company may resolve to "No" as soon as it becomes unable to complete an IPO, including due to acquisition, merger, or absorption by an entity that is already publicly traded.
In the event of an interruption in the course of the normal trading session on the respective companies’ first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.
Volume
$5,531,770End Date
Dec 31, 2026Market Opened
Feb 2, 2026, 5:32 PM ETResolver
0x2F5e3684c...SpaceX leads the implied probabilities at 64.5% for the largest 2026 IPO by market cap, reflecting its elevated private valuation and operational scale in aerospace and satellite communications that position it for a sizable public debut. Anthropic at 36.1% and xAI at 25.5% trail, supported by substantial venture funding and AI-driven growth trajectories that have expanded their enterprise values, though both face longer paths to IPO readiness compared with SpaceX. Lower odds for OpenAI and others underscore valuation gaps and timing uncertainties. Equity market conditions, Treasury yields, and regulatory pathways for large offerings remain key swing factors that could alter these trader-consensus probabilities ahead of potential 2026 filings.
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