Anthropic leads trader sentiment for the largest 2026 IPO by market cap at 56.6% implied probability, driven by its June confidential S-1 filing and reports targeting an October Nasdaq listing at $2 trillion or higher—exceeding SpaceX’s June debut valuation of $1.77 trillion. Recent secondary trading has marked Anthropic near $1.32 trillion, supported by annualized revenue run rates surpassing $65 billion and expectations of $100 billion-plus by year-end. SpaceX, at 41.5%, completed its record $75 billion raise in June but faces reduced odds after the event. xAI’s February absorption into SpaceX removes it as a standalone candidate, while lower-priced outcomes like OpenAI reflect deferred timelines into 2027 amid softer momentum. Key catalysts ahead include Anthropic’s public S-1 release and roadshow execution.
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?
Anthropic 56.6%
SpaceX 42%
OpenAI 2.5%
Discord <1%
$5,925,027 Vol.
$5,925,027 Vol.

Anthropic
57%

SpaceX
42%

OpenAI
3%

Discord
<1%

ByteDance
<1%

Stripe
<1%

Kraken
<1%

SHEIN
<1%

Waymo
<1%

Revolut
<1%

Perplexity AI
<1%

Databricks
<1%
Anthropic 56.6%
SpaceX 42%
OpenAI 2.5%
Discord <1%
$5,925,027 Vol.
$5,925,027 Vol.

Anthropic
57%

SpaceX
42%

OpenAI
3%

Discord
<1%

ByteDance
<1%

Stripe
<1%

Kraken
<1%

SHEIN
<1%

Waymo
<1%

Revolut
<1%

Perplexity AI
<1%

Databricks
<1%
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
Resolver
0x2F5e3684c...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.
Resolver
0x2F5e3684c...Anthropic leads trader sentiment for the largest 2026 IPO by market cap at 56.6% implied probability, driven by its June confidential S-1 filing and reports targeting an October Nasdaq listing at $2 trillion or higher—exceeding SpaceX’s June debut valuation of $1.77 trillion. Recent secondary trading has marked Anthropic near $1.32 trillion, supported by annualized revenue run rates surpassing $65 billion and expectations of $100 billion-plus by year-end. SpaceX, at 41.5%, completed its record $75 billion raise in June but faces reduced odds after the event. xAI’s February absorption into SpaceX removes it as a standalone candidate, while lower-priced outcomes like OpenAI reflect deferred timelines into 2027 amid softer momentum. Key catalysts ahead include Anthropic’s public S-1 release and roadshow execution.
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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