Deep Fission, Inc. (FISN) Stock Chart
FISN price chart
Daily prices adjusted for splits and dividends. 1D and 5D show delayed intraday prices. Markers: E earnings, D dividend, S split.
Technical snapshot
Key levels & statistics
FISN performance vs the market
Total return, dividends reinvestedFISN monthly returns
FISN historical prices
FISN dividends & splits
About the FISN chart
Deep Fission (FISN) closed at $3.45 on October 16, 2026.
This page charts the full trading history of Deep Fission, Inc. stock. Daily prices come from EODHD and are adjusted for stock splits and dividends, so returns over long periods are comparable. For the latest quote, company profile, earnings and news, see the FISN stock overview.
FISN chart FAQ
What is Deep Fission's all-time high stock price?
The highest closing price for FISN was $14.56 on June 18, 2026 (adjusted for stock splits). As of the October 16, 2026 close it traded 76.3% below that level.
What is the 52-week range of FISN stock?
Over the 52 weeks to October 16, 2026, FISN traded between an intraday low of $3.40 on October 16, 2026 and an intraday high of $19.00 on June 18, 2026.
Does Deep Fission pay a dividend?
Deep Fission has not paid a dividend in the past 12 months.
How do I read the FISN chart?
Pick a time range above the chart and choose candlesticks, a line or an area chart. Moving averages, Bollinger Bands, volume, RSI and MACD can be switched on with the indicator buttons, and "Compare" plots FISN against the S&P 500, its sector or a competitor as a percentage change. Chart prices are adjusted for splits and dividends.