FISN Company Profile and Key Details

Deep Fission, Inc. (NASDAQ:FISN) closed at $8.12 USD, gaining $1.02 (14.37%) from the previous close of $7.10. The stock is currently mid-range between its 52-week high and low $6.10 and $19.00. With a market capitalization of about $489.91 million, Deep Fission, Inc. is classified as a small-cap and shows higher-than-market volatility (beta ~4.66). Key stats such as the average daily volume over the past year has been around 318.41 thousand shares, in line with its 52-week average. Headquartered in Berkeley, CA, Deep Fission, Inc. operates in the Industrials sector and the Industrial - Machinery industry. Led by CEO Elizabeth Muller, the company employs approximately 51 people and listed since June 18, 2026. Deep Fission Nuclear, Inc. engages in the provision of nuclear energy through underground nuclear reactor.

Analyst sentiment is bullish. Analyst rating data shows there are 0 Strong Buy ratings, 2 Buy ratings, 0 Hold ratings, 0 Sell rating and 0 Strong Sell ratings. Price targets range from $20.00 to $18.00. The high target offers 146.31% upside. The low target suggests 121.67% downside. The mean target is $19.00. This offers 133.99% upside. Deep Fission, Inc. earnings surprise history is a mixed track record. The quarter that ended August 03, 2026, missed forecasts by -20.0%. The prior quarter beat by -28.66%. Over the last six quarters, Apple has recorded several small beats. These include -28.66% in June 03, 2026.

Deep Fission, Inc. has 58.91 million shares outstanding. The public float is 31.86 million shares, elevated short interest at 0.94% of float. This equals 415.33 thousand shares. The short ratio is 2.35 days. Institutional investors hold 12.39% of the float. Insiders own 36.77%.

Average 10-day trading volume of 230.29 thousand shares is below the 3-month average of 278.64 thousand, indicating normal recent market interest.

Deep Fission, Inc. last paid a dividend of 0 per share, Dividend and splits history remains an important factor for investors monitoring long-term returns. A discounted cash flow model estimates fair value at around $0.39. This means the shares are trading above this model’s fair value.

Our AI price prediction model suggests that Deep Fission, Inc. stock has strong potential for upside but may face short-term weakness followed by gains in the medium and long term. 2-Week Outlook: Projected decline of -13.05%, with price expected at $7.06 by September 30, 2026, within a range of $6.67 to $7.44 3-Month Outlook: Projected fall of -94.7%, reaching $0.43 by December 15, 2026, with a range of $0.30 to $0.55. 1-Year Outlook: Projected loss of -100.0%, with price at $0.00 by September 16, 2027, within a range of $0.00 to $0.14.

Valuation shows Deep Fission, Inc. trading at a premium to the broader market with a P/E of -3.38. Analyst sentiment is bullish, with the majority of ratings in Buy territory and a mean price target of $19.00, suggesting 133.99% upside. Our AI forecast model points to short-term weakness (-13.05% over two weeks), a medium-term fall (-94.7% over three months), and a longer-term loss (-100.0% over one year), with expected trading ranges indicating moderate volatility.

Deep Fission, Inc. trades at a P/E ratio of -3.38, slightly below the S&P 500 average, with a price-to-sales ratio of 0.0 and a price-to-book ratio of 4.49 trading at moderately above to book value. The P/FCF stands at -9.89, also below market averages.