#What is Deep Fission and What Are Their Plans?
Deep Fission is a startup based in Berkeley that focuses on nuclear technology to fuel AI data centers. Recently, the company filed an S-1 registration statement to initiate an IPO on Nasdaq, with a goal of raising up to $156 million. The proposal involves selling 6 million shares priced between $24 and $26 per share, which could assign a valuation of approximately $1.66 billion to the company.
Less than a year ago, Deep Fission made its public debut via a SPAC merger, securing $30 million by pricing its shares at $3 each. The current analysis indicates that investors are now being asked to consider shares at an eightfold premium, underscoring the company’s growth and potential.
#Transitioning From OTCQB to Nasdaq: What Does It Mean?
Deep Fission transitioned from the OTCQB marketplace following a reverse merger with Surfside Acquisition Inc., completed in September 2025. The recent filing aims for a Nasdaq listing under the ticker symbol FISN, allowing access to institutional investors, which typically avoid OTCQB-listed companies. This could enhance liquidity and visibility for the stock.
Additionally, the company secured $80 million in a financing round in February 2026, further supporting its valuation and IPO ambitions.
#What Innovative Technology Does Deep Fission Offer?
At the core of Deep Fission’s technology is the Gravity Nuclear Reactor. This innovative, small modular reactor is designed for underground installation, approximately one mile deep. This unique placement strategy minimizes the need for substantial containment structures, instead leveraging the surrounding rock for natural containment and effective radiation shielding.
Founded in 2023 by physicist Richard A. Muller alongside his daughter Elizabeth, the firm is backed by 8VC, a venture capital firm. The founders have a strong background in nuclear waste disposal and climate initiatives, positioning them as leaders in clean energy solutions.
Deep Fission is working toward achieving pilot criticality by mid-2026, as part of a project backed by the U.S. Department of Energy.
#Why Is Deep Fission's Valuation Significant?
The shift from a $3 per share valuation during the SPAC merger to the proposed $24 to $26 range in the upcoming IPO indicates that Deep Fission views its worth to have multiplied significantly in less than a year. The recent $80 million financing round likely reflects investor confidence in this valuation. However, investors must remain aware of the SEC’s review process of the S-1 filing and whether institutional interest materializes at the proposed price.
For those considering an investment in FISN, understanding these dynamics will be crucial as you assess potential risks and rewards.