Exchange: NASDAQ·Updated 06:23 PM EDT

FISN Deep Fission Inc

$3.06
$0.27
(8.16%)
Today
Closed $3.04
$0.02
(0.66%)
After Hours
Mkt Cap$194.98M
Vol564,391.00

About FISN

Deep Fission, Inc. engages in the provision of energy through nuclear reactors. The company was founded by Elizabeth Muller and Richard A. Muller in 2023 and is headquartered in Berkeley, CA.
73

Bullish Sentiment

How do you feel about FISN?

Blions
$FISN $FISN could they get money, or at least loan guarantee from US Dept of War? US Dept of Energy? I don’t think it’s that crazy.
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AZ_09
$FISN I am not short so don't assume... I see this going under 3 before reaching it's potential. Hedge fund will try to kill it, but I don't think they will succeed.
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Cousinmarvin
$FISN One of these SMR companies is going to get a deal. $SMR $OklO. For the time being my $ are here.
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FlightDirector
$FISN ”Deep Fission has a $156M market cap and ~$70M cash, but needs another ~$90M to complete its initial build. Corporate overhead burns ~$3M/month, and management expects cash to fall to ~$40M by year-end 2026 without new financing. They could run out of cash in roughly 13 months at that burn rate, before accounting for build costs.”
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pyroclast
$FISN I’m travelling in Madagascar and I was a little surprised when I got access to the internet and saw FISN was under $3 a share. I think this SMR company has a lot of potential so I just bought 5000 shares. This stock could explode higher when it starts making electricity next year. Good Luck to all!!
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filecrux
$FISN (Deep Fission, underground nuclear reactor developer): its binding 25-year power deal with Kansas's Great Plains Development Authority has no minimum purchase obligation; the buyer takes only what park tenants need, up to 150 MW at first. For a company worth about $215.6M at $3.66 (16:00 ET Oct 19, 2026), with $93.0M cash at June 30, 2026, it is still a definitive contract replacing a Dec 2025 LOI, though revenue depends on tenant demand. Target start Sept 30, 2028, pending NRC licensing; call today 11:00 a.m. ET.
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Hassan77
$FISN This looks severely oversold since its IPO. Once I get done with GLND I may go in heavy @ $2
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showmethemoney75
$FISN This company has no business being on the Nasdaq. It was struggling just to raise money not that long ago. It has delays…. I see this going under a buck very fast…
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AZ_09
$FISN closed $2.81, -23% on the day. Now down 75% since its June IPO at $16-18. Three things driving it: 1. Business update call this morning (11am ET) — apparently didn't reassure anyone. Stock sold off through the day. 2. Law firms are circling — Pomerantz, SBS, and Kehoe have all announced securities-fraud investigations in the last three weeks. 3. Lockup expires Dec 15 — insider shares flood the market in under two months. This is a $216M microcap in a post-IPO meltdown, not a sector story — OKLO and XE aren't doing anything like this. The Dec 15 lockup is the next date that matters. Hope for the best and plan for the worst.
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Stef_Gee
$FISN FYI : Yes the company announced a 25 year power agreement, it's sounds enormous! BUT commercial operations are targeted for 2028, the project still requires licensing, no minimum electricity purchase obligation, no guaranteed near term revenue ... That's a binding development agreement but not 25 years of guaranteed electricity sales 😉 And I'm not shorting this shit, a beautiful bearish chart doesn't necessarily mean a beautiful short execution GLTA
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pyroclast
$FISN DEEP FISSION nuclear power would be perfect for the FORTRESS AMERICA military plan. The safest place for the nuclear reactor is a mile underground.
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FlightDirector
$FISN Financials are completely underwater (even assuming 2024 cost estimates) by a massive margin. There’s also an enormous amount of share unlocks happening in the next month. This will be delisted during mid-2027 and will clear room for the actual players in this space, mainly OKLO and XE.
FlightDirector
$FISN Furthermore, FISN has major insider lockup expirations coming in December 2026. Around December 14, the 180-day underwriter lockup expires for approximately 17.15 million shares, followed by another company lockup expiration around December 22 covering approximately 21.33 million shares. These figures may overlap, so they shouldn't be added together without checking. The underwriters may also waive restrictions early. This creates a potential source of selling pressure in mid-to-late December.
showmethemoney75
$FISN Should never had gone public. It was a money grab by banks and insiders. This is a failed business that will go under and be picked over by creditors
filecrux
$FISN We did a deep dive on Deep Fission. • No-revenue nuclear firm's first binding power deal: no minimum buy, no price • Stock fell 23.2% to $2.81 • Slides imply ~$840M for phase one, ~9x June cash; going-concern doubt • Next: lock-up end Full report linked in the replies.
Cousinmarvin
$FISN Agreed AZ 09. This is a long play stock. If the US and others want energy security and their installations to be independent from the grid, this type of Small Nuclear Reactor will be in and around that decision in the future. just got to do the R&D now!!
CapitalWhale
$FISN Strong Q2 cash generation FIS generated $525M of free cash flow in Q2 2026, up 220% YoY... Adjusted EPS was $1.48 and up 8.8%**

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