Largest IPO by market cap in 2026?

$4.9M Vol.Closes Dec 31, 2026

SpaceX$529.9K Vol.86%

Anthropic$658.4K Vol.15%

OpenAI$442.8K Vol.1%

Discord$169.7K Vol.<1%

ByteDance$164K Vol.<1%

Stripe$90.2K Vol.<1%

Kraken$648.9K Vol.<1%

SHEIN$560.9K Vol.<1%

Waymo$309.1K Vol.<1%

Revolut$627.4K Vol.<1%

And 2 more markets on this event.

View on Polymarket

At a glance

What

SpaceX completed its initial public offering in June 2026, becoming the first U.S. company to list with a market value exceeding $1 trillion.

Who

The company is led by founder Elon Musk and operates as an aerospace manufacturer and satellite communications firm.

Context

The IPO raised $75 billion at a $135/share price, surpassing Alibaba's 2014 record to become the largest stock market debut ever.

Reuters capital.com

Stakes

A $1.77 trillion valuation positions SpaceX as the seventh-largest U.S. company, surpassing Tesla and Saudi Aramco, while making Musk a potential trillionaire.

CNBC The Guardian

Note: While SpaceX's IPO is the largest in history by capital raised and initial valuation, its market cap could be surpassed in the remainder of 2026 if another company (e.g., OpenAI or Anthropic) sees a more dramatic post-IPO price surge, though none have listed yet.

Jun 3

SpaceX finalized its IPO pricing at $135 per share for 555.6 million shares, raising $75 billion and establishing what is confirmed as the largest IPO in history.

Reuters New York Times

Jun 12

SpaceX officially debuted on the Nasdaq under ticker "SPCX," opening at $150 per share and surging 17% to secure a market valuation of approximately $1.77 trillion.

Forbes

Jul 15

SpaceX shares fell below their $135 IPO price for the first time, prompting investor debate on the company's next move.

CNBC

Now

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bull case

SpaceX achieved a record-breaking $1.77 trillion market capitalization on its first trading day, exceeding the valuations of all other 2026 IPO candidates by a significant margin.
CNBC The Guardian
The company's combined valuation exceeded $1 trillion after merging with Musk's AI venture xAI in February 2026, creating a diversified aerospace and artificial intelligence entity.
CNN
SpaceX targets a totalable market of $285 trillion for its satellite and launch services, surpassing the entire GDP of the United States and providing immense long-term growth potential.
Reuters

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bear case

SpaceX shares fell below the $135 IPO price by mid-July 2026, indicating immediate post-listing volatility and potential investor skepticism about the $1.77 trillion valuation.
CNBC
The company's investor prospectus disclosed that it is currently operating at a loss despite its massive valuation, raising concerns about profitability relative to its market cap.
The Guardian
SpaceX faces intense competition from other major AI firms like OpenAI and Anthropic, which are also expected to go public in 2026 with valuations potentially reaching hundreds of billions or over a trillion dollars.
The Guardian

IPOs

Largest IPO by market cap in 2026?

$4.9M Vol.Closes Dec 31, 2026

SpaceX$529.9K Vol.86%

Anthropic$658.4K Vol.15%

OpenAI$442.8K Vol.1%

Discord$169.7K Vol.<1%

ByteDance$164K Vol.<1%

Stripe$90.2K Vol.<1%

Kraken$648.9K Vol.<1%

SHEIN$560.9K Vol.<1%

Waymo$309.1K Vol.<1%

Revolut$627.4K Vol.<1%

And 2 more markets on this event.

View on Polymarket

At a glance

What

SpaceX completed its initial public offering in June 2026, becoming the first U.S. company to list with a market value exceeding $1 trillion.

Who

The company is led by founder Elon Musk and operates as an aerospace manufacturer and satellite communications firm.

Context

The IPO raised $75 billion at a $135/share price, surpassing Alibaba's 2014 record to become the largest stock market debut ever.

Reuters capital.com

Stakes

A $1.77 trillion valuation positions SpaceX as the seventh-largest U.S. company, surpassing Tesla and Saudi Aramco, while making Musk a potential trillionaire.

CNBC The Guardian

Jun 3

SpaceX finalized its IPO pricing at $135 per share for 555.6 million shares, raising $75 billion and establishing what is confirmed as the largest IPO in history.

Reuters New York Times

Jun 12

SpaceX officially debuted on the Nasdaq under ticker "SPCX," opening at $150 per share and surging 17% to secure a market valuation of approximately $1.77 trillion.

Forbes

Jul 15

SpaceX shares fell below their $135 IPO price for the first time, prompting investor debate on the company's next move.

CNBC

Now

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bull case

SpaceX achieved a record-breaking $1.77 trillion market capitalization on its first trading day, exceeding the valuations of all other 2026 IPO candidates by a significant margin.
CNBC The Guardian
The company's combined valuation exceeded $1 trillion after merging with Musk's AI venture xAI in February 2026, creating a diversified aerospace and artificial intelligence entity.
CNN
SpaceX targets a totalable market of $285 trillion for its satellite and launch services, surpassing the entire GDP of the United States and providing immense long-term growth potential.
Reuters

AI-generated briefing. AI can make mistakes. This is not financial advice.

Bear case

SpaceX shares fell below the $135 IPO price by mid-July 2026, indicating immediate post-listing volatility and potential investor skepticism about the $1.77 trillion valuation.
CNBC
The company's investor prospectus disclosed that it is currently operating at a loss despite its massive valuation, raising concerns about profitability relative to its market cap.
The Guardian
SpaceX faces intense competition from other major AI firms like OpenAI and Anthropic, which are also expected to go public in 2026 with valuations potentially reaching hundreds of billions or over a trillion dollars.
The Guardian

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