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Deep Fission IPO Closing Market Cap

icon for Deep Fission IPO Closing Market Cap

Deep Fission IPO Closing Market Cap

$1.75B–$2.0B 37%

$1.5B–$1.75B 36%

$3.0B+ 13.3%

$2.0B–$2.5B 4.0%

Polymarket

$13,065 Vol.

$1.75B–$2.0B 37%

$1.5B–$1.75B 36%

$3.0B+ 13.3%

$2.0B–$2.5B 4.0%

Polymarket

$13,065 Vol.

<$1.25B

$452 Vol.

14%

$1.25B–$1.5B

$401 Vol.

13%

$1.5B–$1.75B

$8,026 Vol.

36%

$1.75B–$2.0B

$2,457 Vol.

37%

$2.0B–$2.5B

$548 Vol.

4%

$2.5B–$3.0B

$317 Vol.

13%

$3.0B+

$374 Vol.

13%

No IPO before August 2026

$489 Vol.

15%

This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading. As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026". Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency. It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day. If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently. The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page. If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket. The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading. In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.Deep Fission’s May 2026 IPO launch, targeting roughly $1.66 billion at $24–$26 per share on Nasdaq, anchors trader sentiment around the $1.5–2.0 billion range. The company’s novel pressurized-water reactors placed one mile underground via boreholes leverage mature oil-and-gas drilling and PWR technology, promising lower surface infrastructure costs and enhanced passive safety. Selection for the Department of Energy’s Reactor Pilot Program and pre-application work with the NRC further support near-term execution credibility amid surging AI-driven electricity demand. Closely matched leading outcomes reflect uncertainty over final pricing, share demand, and execution risks typical for early-stage nuclear ventures, while the modest “no IPO before August 2026” probability accounts for potential delays in regulatory or market conditions.

This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading.

As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026".

Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency.

It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day.

If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently.

The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page.

If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket.

The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading.

In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.
Volume
$13,065
End Date
May 29, 2026
Market Opened
May 27, 2026, 4:07 PM ET
This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading. As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026". Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency. It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day. If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently. The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page. If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket. The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading. In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.
This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading. As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026". Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency. It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day. If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently. The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page. If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket. The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading. In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.Deep Fission’s May 2026 IPO launch, targeting roughly $1.66 billion at $24–$26 per share on Nasdaq, anchors trader sentiment around the $1.5–2.0 billion range. The company’s novel pressurized-water reactors placed one mile underground via boreholes leverage mature oil-and-gas drilling and PWR technology, promising lower surface infrastructure costs and enhanced passive safety. Selection for the Department of Energy’s Reactor Pilot Program and pre-application work with the NRC further support near-term execution credibility amid surging AI-driven electricity demand. Closely matched leading outcomes reflect uncertainty over final pricing, share demand, and execution risks typical for early-stage nuclear ventures, while the modest “no IPO before August 2026” probability accounts for potential delays in regulatory or market conditions.

This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading.

As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026".

Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency.

It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day.

If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently.

The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page.

If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket.

The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading.

In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.
Volume
$13,065
End Date
May 29, 2026
Market Opened
May 27, 2026, 4:07 PM ET
This market will resolve based on Deep Fission's market capitalization at the closing price on its first day of trading. As of market creation, the IPO is scheduled to price on May 29 (ET). If no such IPO occurs by July 31, 2026, 11:59 PM ET, the market will resolve to "No IPO before August 2026". Market capitalization expresses the monetary value of a company's outstanding shares, stated in its pricing currency. It is calculated as the total number of outstanding shares, multiplied by the official closing share price of the publicly traded class on the first trading day. If necessary, to accurately capture the company's total market capitalization, rather than a stock-class-specific market capitalization, the calculation will include all outstanding share classes and apply any stated conversion ratios to the publicly traded class. Where no conversion right exists, such shares will be counted at their stated outstanding amount without discount, unless official filings explicitly specify differently. The number of outstanding shares will be determined from official company filings or disclosures (e.g., SEC filings). The closing share price on the first trading day will be determined from the primary exchange's official listing page. If the relevant value falls exactly between two brackets, this market will resolve to the higher range bracket. The primary resolution source for this market will be official company filings and the primary exchange's official listing page. The market capitalization will be determined through appropriate calculation using the total outstanding shares and the closing price from the first day of trading. In the event of an interruption in the normal trading session on the specified company's 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 day as the first day of trading for the purposes of this market.

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Frequently Asked Questions

"Deep Fission IPO Closing Market Cap" is a prediction market on Polymarket with 8 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "$1.75B–$2.0B" at 37%, followed by "$1.5B–$1.75B" at 36%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 37¢ implies that the market collectively assigns a 37% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Deep Fission IPO Closing Market Cap" has generated $13.1K in total trading volume since the market launched on May 27, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Deep Fission IPO Closing Market Cap," browse the 8 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Deep Fission IPO Closing Market Cap" is "$1.75B–$2.0B" at 37%, meaning the market assigns a 37% chance to that outcome. The next closest outcome is "$1.5B–$1.75B" at 36%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Deep Fission IPO Closing Market Cap" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.