SuRo Capital Corp. 6.00% Notes due 2026
Key statistics
from XBRL data in SEC filingsAI briefing
from the latest 10-K, 10-Q and 8-K eventsNeostellar Capital Corp. is an externally managed BDC investing in venture-backed private technology companies, now trading on Nasdaq as NSLR.
What they do
Neostellar Capital Corp. is a business development company (BDC) that invests primarily in equity and equity-related securities of high-growth, venture capital-backed emerging companies, with a focus on themes like AI infrastructure, SaaS, fintech, and logistics. It sources investments through direct deals, secondary markets, and special purpose vehicles, and may also invest in SPACs and private credit. Effective July 15, 2026, it transitioned to an externally managed structure with Neostellar Advisors LLC, affiliated with Magnetar.
Revenue drivers
- Capital gains on equity investments — Primary revenue driver; portfolio fair value was ~$405.9M at June 30, 2026, with top five investments (Whoop, ARK Type One Deep Ventures Fund, IH10, Magnetar Opportunity 2025-4 LP, Blink Health) comprising 69.3% of total portfolio.
- Whoop, Inc. — Largest portfolio investment; fair value of $150.8M, representing 37.1% of total portfolio; cost basis $11.0M.
- ARK Type One Deep Ventures Fund LLC — Second-largest; fair value $59.3M (14.6% of portfolio); invests solely in Series A-2 Preferred Shares of OpenAI Global, LLC.
- IH10, LLC / VAST Data — Third-largest; fair value $34.0M (8.4% of portfolio); holds Series B Preferred Shares of VAST Data, Ltd. through an SPV.
Recent performance
For Q2 2026 (ended June 30, 2026), net assets totaled $355.9M, or $13.44 per share, down from $14.24 per share at March 31, 2026 but up from $9.18 per share at June 30, 2025. Annual net income swung to $48.8M in 2025 from -$38.1M in 2024; diluted EPS was $1.78 in 2025. Operating cash flow improved to $34.3M in 2025. The company funded the remaining $15M of a $20M commitment to TensorWave and made an ~$9.5M investment in ClickHouse during Q2 2026.
Strategy
Management focuses on identifying differentiated private technology companies before they gain broad recognition, investing in AI compute, data infrastructure, networking, software, cybersecurity, and power. The company completed a transition to an externally managed structure with Magnetar-affiliated Neostellar Advisors, aiming to broaden sourcing and expand the range of investment structures. It also received a $20M investment via a redeemable promissory note from a Magnetar affiliate subsequent to quarter-end. The stated goal is disciplined capital allocation to create durable long-term value for stockholders.
Risks
- Concentration risk — Top five investments account for ~69% of total portfolio fair value, making results highly sensitive to a few companies.
- Valuation uncertainty — Most investments are in private companies with no public market, so fair values are estimated and may be volatile.
- High-risk venture investments — Many portfolio companies are early-stage with operating losses; could lose all or part of investment if they fail or liquidate.
- Liquidity and holding period — Lack of liquidity in private holdings may delay any distributions of gains and could impede ability to exit positions.
Outlook
Management expects continued growth in demand for high-performance AI compute infrastructure, and believes TensorWave benefits from this trend. They also see ClickHouse as well-positioned in data infrastructure for AI and enterprise applications. The transition to the externally managed structure with Magnetar is expected to enhance sourcing and investment capabilities. No specific future financial guidance was provided.