Stack Capital's Book Value Surges 25% on Strong Private Market Gains
Event summary
- Stack Capital's book value per share rose 25% to $15.35 in 2025, driven by strong portfolio performance.
- SpaceX's valuation surged to $800 billion in a tender offer, later merging with xAI at a $1 trillion valuation.
- OpenAI raised $110 billion at a $730 billion valuation, with investments from Amazon and NVIDIA.
- Stack Capital invested $4 million in Databricks and $12 million in Crusoe Energy, focusing on AI infrastructure.
- X-Energy received a U.S. Nuclear Regulatory Commission license for advanced fuel fabrication.
The big picture
Stack Capital's 25% increase in book value reflects the robust performance of its private market investments, particularly in high-growth sectors like AI and clean energy. The company's strategic focus on late-stage private market opportunities aligns with broader industry trends of increasing investor demand for technology-driven businesses. With several portfolio companies raising capital at higher valuations, Stack Capital is well-positioned to benefit from potential monetizations in 2026.
What we're watching
- Private Market Momentum
- How Stack Capital will capitalize on the continued strength in large-scale financings and investor demand for category-leading technology businesses.
- AI and Energy Focus
- Whether Stack Capital's investments in AI infrastructure and clean energy will sustain long-term growth.
- Monetization Opportunities
- The pace at which high-quality private companies in Stack Capital's portfolio will explore public market opportunities.
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