Key Takeaways

  • ICEYE, SSIC's largest holding, has been valued at approximately €2.4bn following a €150m Series E led by General Catalyst.
  • The Rheinmetall–ICEYE joint venture, formally launched in Germany, is set to build SAR satellites in 2026.
  • The trust sold around 95% of its AST SpaceMobile holding in Q1 2025 for net proceeds of about $10.5m, having backed the company at a $300m valuation.
  • Risks include valuation uncertainty for private holdings, exit timing, sector concentration and macro Volatility.

Introduction

Seraphim Space Investment Trust (LSE: SSIC) is the world's first publicly listed pure-play SpaceTech fund. Since its 2021 IPO, the trust has invested in a diversified, international portfolio of early- and growth-stage privately financed SpaceTech businesses, ranging from synthetic aperture radar imagery to satellite connectivity, geospatial analytics and in-orbit services.

In 2026, the shares have moved to fresh record territory, supported by strong portfolio progress and renewed investor interest in the global space economy. With its largest holding ICEYE now valued at multi-billion euro levels and several other portfolio companies showing commercial momentum, SSIC has emerged as one of the most watched UK investment trusts in the SpaceTech space. This article unpacks the drivers, the financial picture and the risks investors are weighing.

What Happened to SSIC Shares?

SSIC shares have traded at multi-year highs in 2026. Publicly available pricing data shows the shares at approximately 106.4p on 26 May 2026, near a 52-week high of 106.48p. The 52-week range stretches from approximately 100.5p at the low to 106.48p at the high. Market Capitalisation sits in the region of £649m.

The move reflects a combination of factors: rising marks on key private holdings, evidence of cash exits at strong multiples, narrowing of the discount to net asset value (NAV) and an improving narrative around the global space economy. The trust's largest holding, ICEYE, has more than doubled in value over the past year and a half, while other portfolio companies have advanced through commercial milestones and follow-on funding rounds.

Liquidity in the shares has been supported by greater institutional engagement with SpaceTech as a thematic exposure. The shares remain a small-cap by FTSE standards but have become one of the more visible UK plays on the listed space-economy theme.

Why the Stock Is Trading Near an All-Time High

The principal driver of SSIC's strong run is the performance of ICEYE. Headquartered in Finland, ICEYE operates the world's largest synthetic aperture radar (SAR) satellite constellation, providing all-weather, day-and-night Earth observation data to defence, intelligence, insurance and commercial customers.

In 2026, ICEYE secured a €150m Series E funding round led by General Catalyst, which implied a Post-Money Valuation of approximately €2.4bn. That marked a significant uplift from the prior valuation and flowed through to SSIC's reported NAV, given that ICEYE represents close to 40% of net Assets.

Beyond ICEYE, the formal launch of the Rheinmetall ICEYE Space Solutions joint venture in Neuss, Germany has further reinforced the bull case. The venture is set to build SAR satellites in 2026 and embed ICEYE's technology within a major European defence prime — a powerful endorsement at a time when European governments are increasing defence and space budgets.

Other portfolio companies have also progressed. AST SpaceMobile, which SSIC backed at a $300m valuation, has grown into a multi-billion-dollar listed company. SSIC sold approximately 95% of its AST holding in Q1 2025 for net proceeds of around $10.5m (£7.9m), at a reported multiple of 187% of original cost.

Discount narrowing has also helped. Like many investment trusts, SSIC has traded at a discount to NAV, and as confidence in the marks has grown, that discount has compressed — amplifying share-price gains relative to NAV moves.

Company Background

Seraphim Space Investment Trust plc was founded in 2021 and listed on the London Stock Exchange in the same year, raising significant Capital to invest in privately held SpaceTech businesses. The trust is headquartered in London and managed by Seraphim Space Manager LLP, a specialist SpaceTech investor with deep relationships across the global space economy.

The trust's investment policy targets a diversified, international portfolio of early- and growth-stage privately financed SpaceTech businesses. Investments span Earth observation, satellite communications, geospatial analytics, in-orbit services, propulsion, ground systems and adjacent areas.

The portfolio includes both globally recognised names — such as ICEYE — and earlier-stage companies developing the next generation of space infrastructure. The manager combines proprietary deal flow, sector expertise and operational support to back leading entrepreneurs across the lifecycle.

SSIC reports periodically on NAV, portfolio progress and material valuation changes. As with most investment trusts holding private assets, NAV calculations rely on a mix of comparable transactions, funding-round valuations and discounted Cash Flow models, all subject to judgement. The trust is a constituent of the Association of Investment Companies (AIC) and is followed by several investment-trust-focused Brokers and commentators.

Sector and Market Context

The global space economy is in a phase of structural expansion. Government and commercial Demand for Earth observation, secure satellite communications, navigation, in-orbit services and launch capacity has grown substantially over the past decade. Industry estimates suggest the global space economy could grow to multi-trillion-dollar scale over the next two decades.

For listed SpaceTech investors, several themes have been particularly important in 2026: rising defence and security spending, increased commercial adoption of satellite-based data, the maturation of large constellations and the emergence of direct-to-device satellite connectivity.

SSIC's portfolio aligns closely with several of these themes. ICEYE's SAR data is widely used in defence and disaster-response applications. AST SpaceMobile's direct-to-device technology has captured mainstream attention. Other holdings address geospatial intelligence, satellite servicing and in-orbit logistics.

Listed peers in space-economy exposure remain limited. Several US-listed companies offer pure-play exposure, but UK investors have few alternatives at home. That Scarcity has supported demand for SSIC, particularly among thematic and growth-orientated funds. That said, the SpaceTech sector is not immune to valuation cycles. The 2021–2023 period saw a sharp re-rating in private valuations followed by a partial reset. The current uplift in marks is welcome but should be considered in context.

Financial Performance and Key Data

Key publicly available data points for SSIC — figures that should be verified before publication — include a share price of approximately 106.4p on 26 May 2026, a 52-week range of roughly 100.5p to 106.48p, and a market capitalisation of approximately £649m. The trust's largest holding is ICEYE, representing close to 40% of NAV as at end-December 2025, with an implied valuation of approximately €2.4bn following the €150m Series E led by General Catalyst. The AST SpaceMobile exit saw around 95% of the holding sold in Q1 2025 for net proceeds of approximately $10.5m (£7.9m), reportedly at 187% of original cost. For the latest discount or premium to NAV, investors should consult the most recent factsheet and AIC data.

Net asset value growth has been driven by uplifts on key holdings, while cash exits such as the AST SpaceMobile sale have demonstrated the manager's ability to crystallise returns when appropriate. Cash on the Balance Sheet supports continued Portfolio Investment and provides flexibility around Buybacks or capital returns if conditions Warrant.

Valuation considerations for SSIC are complex. Investors must consider both the underlying NAV — which itself rests on private-asset valuations — and the discount or premium at which the shares trade. Share-price upside can come from NAV growth, discount narrowing or both. Conversely, NAV declines and discount widening can amplify share-price weakness.

Investor Sentiment and Market Reaction

Investor sentiment toward SSIC has improved meaningfully in 2026. The combination of strong ICEYE uplifts, the AST SpaceMobile exit and growing market interest in space economy themes has attracted a wider investor base.

Specialist investment trust commentary has been broadly positive, with the AIC sector data showing SSIC among the more attention-getting names in the AIC Growth Capital sector. The discount to NAV has compressed from prior wider levels, although it has not fully closed.

Retail investor engagement has also grown, with UK platforms reporting increased buying interest. At the same time, some commentators have flagged the inherent uncertainty in private-market valuations and the sector-specific risks of SpaceTech, urging caution on assuming continued multiple expansion.

Risks and Challenges

SpaceTech investing carries distinct risks. First, valuation uncertainty for private holdings is significant. NAV calculations rest on funding-round valuations, comparable transactions and judgement-based models. Marks can move materially up or down between reporting periods.

Second, exit timing is uncertain. Realising private holdings depends on capital-markets conditions, M&Amp;A activity and individual company readiness. A weaker IPO market or a slower M&A environment could delay realisations.

Third, sector concentration matters. With ICEYE close to 40% of NAV, any setback at ICEYE could disproportionately affect SSIC's NAV. Diversification within SpaceTech is meaningful but the trust's risk profile is influenced heavily by its largest holdings.

Fourth, macro and geopolitical risks could affect SpaceTech demand and funding conditions. Defence budgets, government priorities and capital-markets conditions all play a role.

Fifth, currency exposure is meaningful. Many holdings are valued in US dollars or euros, and movements relative to sterling can affect reported NAV. Finally, the discount to NAV can widen if sentiment shifts, even without changes in underlying portfolio value.

What Could Move the Stock Next?

Several factors could shape SSIC's share price. The next NAV update — typically reported on a quarterly cycle — will be closely watched. Investors will look for further uplifts on key holdings, fresh exits or any markdowns that affect the bull case.

ICEYE-specific news flow will remain pivotal. Material contracts, additional funding rounds, the progress of the Rheinmetall joint venture and any potential IPO of ICEYE itself would all influence sentiment.

Broader space-economy news — including government defence budgets, satellite launches, regulatory frameworks and major M&A — will affect the sector backdrop. Peer activity from listed space-economy names will provide read-across.

The trust's own actions matter too. Continued discipline on Portfolio Management, evidence of follow-on funding for portfolio companies, potential share buybacks and any capital return strategy will all shape investor perception. Macro factors — interest rates, capital-markets sentiment and risk appetite — will influence the discount to NAV. Currency moves can also affect reported figures given the dollar and euro exposure of many portfolio holdings.

Bottom Line

SSIC's rally to record territory in 2026 reflects genuine progress in its portfolio: ICEYE valued at multi-billion-euro levels following a major Series E, a successful AST SpaceMobile exit, the Rheinmetall joint venture and broader investor interest in SpaceTech. That said, private-asset valuation, exit timing, sector concentration and macro factors remain key risks. The shares' future will depend on continued NAV progress, disciplined portfolio management and capital-markets sentiment toward the space economy. Investors are watching the next NAV update, ICEYE-specific news and the trajectory of the discount to NAV.