Recent reports of SpaceX potentially filing its IPO prospectus as soon as this week, targeting a record $75 billion raise at a post-merger valuation exceeding $1 trillion, have propelled trader consensus to an implied 89.5% probability of it claiming the largest market cap IPO in 2026. The February acquisition of xAI—valuing the AI startup at $250 billion—bolsters SpaceX's dominance by integrating advanced artificial intelligence for Starship autonomy and space-based data centers, outpacing rivals. OpenAI (4%) and Anthropic (3.8%) linger low amid vague Q4 listing rumors, while others trail due to absent firm timelines. Watch for SEC filing confirmation or delays, with Starlink expansion as a key valuation driver.
Experimental AI-generated summary referencing Polymarket data · UpdatedSpaceX 90%
OpenAI 4.0%
Anthropic 3.8%
Discord <1%
$1,613,190 Vol.
$1,613,190 Vol.
Dec 31, 2026
SpaceX
90%
OpenAI
4%
Anthropic
4%
Discord
1%
Waymo
1%
Kraken
1%
ByteDance
<1%
Stripe
<1%
Databricks
<1%
Revolut
<1%
Perplexity AI
<1%
SHEIN
<1%
SpaceX 90%
OpenAI 4.0%
Anthropic 3.8%
Discord <1%
$1,613,190 Vol.
$1,613,190 Vol.
Dec 31, 2026
SpaceX
$177,962 Vol.
90%
OpenAI
$294,301 Vol.
4%
Anthropic
$341,862 Vol.
4%
Discord
$67,156 Vol.
1%
Waymo
$43,739 Vol.
1%
Kraken
$371,817 Vol.
1%
ByteDance
$83,799 Vol.
<1%
Stripe
$37,013 Vol.
<1%
Databricks
$66,748 Vol.
<1%
Revolut
$24,508 Vol.
<1%
Perplexity AI
$52,797 Vol.
<1%
SHEIN
$51,585 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.Recent reports of SpaceX potentially filing its IPO prospectus as soon as this week, targeting a record $75 billion raise at a post-merger valuation exceeding $1 trillion, have propelled trader consensus to an implied 89.5% probability of it claiming the largest market cap IPO in 2026. The February acquisition of xAI—valuing the AI startup at $250 billion—bolsters SpaceX's dominance by integrating advanced artificial intelligence for Starship autonomy and space-based data centers, outpacing rivals. OpenAI (4%) and Anthropic (3.8%) linger low amid vague Q4 listing rumors, while others trail due to absent firm timelines. Watch for SEC filing confirmation or delays, with Starlink expansion as a key valuation driver.
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
$1,613,190End 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.Recent reports of SpaceX potentially filing its IPO prospectus as soon as this week, targeting a record $75 billion raise at a post-merger valuation exceeding $1 trillion, have propelled trader consensus to an implied 89.5% probability of it claiming the largest market cap IPO in 2026. The February acquisition of xAI—valuing the AI startup at $250 billion—bolsters SpaceX's dominance by integrating advanced artificial intelligence for Starship autonomy and space-based data centers, outpacing rivals. OpenAI (4%) and Anthropic (3.8%) linger low amid vague Q4 listing rumors, while others trail due to absent firm timelines. Watch for SEC filing confirmation or delays, with Starlink expansion as a key valuation driver.
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
$1,613,190End Date
Dec 31, 2026Market Opened
Feb 2, 2026, 5:32 PM ETResolver
0x2F5e3684c...Recent reports of SpaceX potentially filing its IPO prospectus as soon as this week, targeting a record $75 billion raise at a post-merger valuation exceeding $1 trillion, have propelled trader consensus to an implied 89.5% probability of it claiming the largest market cap IPO in 2026. The February acquisition of xAI—valuing the AI startup at $250 billion—bolsters SpaceX's dominance by integrating advanced artificial intelligence for Starship autonomy and space-based data centers, outpacing rivals. OpenAI (4%) and Anthropic (3.8%) linger low amid vague Q4 listing rumors, while others trail due to absent firm timelines. Watch for SEC filing confirmation or delays, with Starlink expansion as a key valuation driver.
Experimental AI-generated summary referencing Polymarket data · Updated
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Frequently Asked Questions