https://www.kosu.org/energy-environment/2025-12-22/kansas-will-get-the-worlds-first-mile-deep-nuclear-reactor-30-miles-from-oklahoma-border
The next meaningful demonstration is drilling a commercial-scale borehole and safely deploying the non-nuclear prototype.
It has enough cash to continue near-term development
Deep Fission ended June with approximately $93 million in cash, after raising $80 million privately and approximately $34 million net from its public offering.
At the current market capitalization, the enterprise value after subtracting cash is roughly:
\$504\text{m market cap}-\$93\text{m cash}
\approx \$411\text{m}
That is not an absurd valuation should the technology ultimately work, because a successful commercial reactor platform could be worth several billion dollars.
Why I would not call it a buy today
It has no revenue
Deep Fission has not commercialized a reactor, and none of its planned revenue streams has begun. Its current value is entirely based on future technical and commercial success.
The cash runway is already a concern
For the first six months of 2026, Deep Fission:
Lost approximately $52.4 million.
Used approximately $42.5 million of operating cash.
Ended June with approximately $93 million.
Most importantly, management explicitly says its existing cash and recent financing proceeds are not sufficient to fund operations for the next 12 months under the current plan. It expects to require substantial additional financing to complete, license and commercially deploy its first reactor.
That makes further share issuance highly probable.
Dilution risk is substantial
There were approximately 59.7 million shares outstanding at June 30, but also:
Approximately 8.1 million stock options.
Restricted stock and RSUs.
Warrants.
An equity plan that can automatically increase annually by up to 5% of outstanding shares.
The company raised shares at:
$3 in September 2025.
$15 in February 2026.
$16 in June 2026.
That financing history shows both rapid valuation changes and a continuing dependence on equity capital.
The present valuation still prices in meaningful success
A roughly $411 million enterprise value for a pre-revenue company is not cheap in an absolute sense. It may be inexpensive relative to some highly promoted advanced-nuclear peers, but it still assumes a reasonable probability that Deep Fission progresses far beyond its current non-nuclear engineering phase.
The fundamental outcomes could be binary:
Successful borehole demonstration and regulatory progress could lift the stock dramatically.
Drilling problems, groundwater concerns, regulatory delays, cost overruns or unsuccessful deployment could reduce the equity value sharply.
The hardest engineering work remains ahead
A 6,000-foot characterization well and tested canister are useful milestones, but they do not yet prove:
Reliable insertion and retrieval of a nuclear reactor.
Long-term borehole integrity under heat, pressure and radiation.
Maintenance and inspection procedures.
Emergency access and decommissioning.
Groundwater isolation.
Commercial construction costs.
NRC licensing for ordinary commercial deployment.
Community opposition has also emerged around the Parsons project, particularly regarding environmental oversight, water risks and the unusual regulatory pathway.
