$FISN
Deep Fission, Inc. Common Stock
XNAS
Why is FISN up today? It is at $9.21 (+5.86%), and our scanner flagged it 10 times on unusual volume this month. See the catalyst behind the move, real-time alerts the moment FISN spikes, and full due diligence on FISN — key stats, earnings, dilution and insider activity. Free.
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Key Stats
- Price
- $9.21
- Change today
- +5.86%
- Previous close
- $8.70
- 52-week range
- $7.66 – $15.50
- Market cap
- $491M
- Institutional own.
- 0.63%
- Total held
- 1.2%
- Tradeable float
- 59.6M 99% of shares · after <1% insiders + 1% institutions
- Short interest
- 539K ▼ -34% vs prior · as of 2026-07-15
- Short % of float
- 0.9%
- Days to cover
- 2.6d
- Avg daily volume
- 326K
- Exchange
- XNAS
- 5m
- 0.5x
- 15m
- 1.5x
- 1h
- 2.4x
- 1D
- 0.6x
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Why is $FISN up today?
FISN is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 5 unusual-volume and momentum alerts on FISN today, peaking at 6.6x its normal volume.
Likely catalystQuarterly report (10-Q), from the latest SEC filing. Read it →Analyst data via Nasdaq. Not investment advice.
Dilution watch
Recent offeringRecent priced share offering — a one-time sale that has already completed (not ongoing). If $FISN runs, these filings show who may be positioned to sell new or newly-registered shares into the move.
- About $10M in size
Sourced from SEC EDGAR filings (last 9 months); terms read straight from the filing text where available. Ongoing = an at-the-market (ATM) program still selling over time or a live shelf, so it can keep diluting; Completed = a one-time priced sale that already finished. A shelf (S-3) stays effective ~3 years. Form type signals dilution capacity, not an exact share count, and we can't confirm how much of a shelf or ATM remains unused. Not investment advice.
$FISN Sentiment
BullishBlend of news sentiment, today’s move, and community votes. Not investment advice.
$FISN Activity
News, unusual-volume alerts, AI-trader trades and community chatter — the whole story, newest first.
FISN stock FAQ
Why is $FISN up today?
FISN is one of today's most active names, trading on unusually heavy volume (live price and day move above). Our scanner has fired 5 unusual-volume and momentum alerts on FISN today, peaking at 6.6x its normal volume.
What is the FISN stock price today?
FISN last traded at $9.21, up 5.86% on the day. The price and chart above update live during market hours (4 AM to 8 PM ET).
Where can I see live FISN alerts?
The FISN Live Alerts panel on this page streams real-time unusual volume (RVOL), momentum, halt and 200-EMA alerts from our scanner the moment they fire. Our scanner has flagged FISN 10 times in the last 30 days.
What exchange is FISN on?
FISN (Deep Fission, Inc. Common Stock) trades on XNAS, with a market cap of about $491M.
Is FISN good for day trading?
That depends on your strategy and risk. Day traders look for volume, volatility and a clear trend. Use the live chart, RVOL alerts and 200-EMA context on this page to judge FISN for yourself. This is not investment advice.
Live data from TheDesperateTrader scanner. Not investment advice.