Pure Play or Hybrid? Unpacking the Rise of Space ETFs

The rise of dedicated space ETFs is a relatively recent development. For years, investors seeking exposure to the space economy were largely limited to broad aerospace and defense funds. Many of which were heavily concentrated in aircraft manufacturers and military contractors rather than space-focused businesses.That began to change in 2019 with the launch of the Procure Space ETF (UFO ), which was marketed as the world’s first ETF dedicated specifically to the global space industry. The fund aimed to give investors more direct exposure to companies involved in satellite communications, rocket and satellite manufacturing, space technology, and space-based intelligence services. UFO launched during a period of growing optimism around the commercialization of space, as reusable rockets, expanding satellite infrastructure and rising private-sector investment fueled expectations that the industry could become a major long-term growth market. ProcureAM positioned the ETF around the view that a new era of space exploration and commercial activity was emerging. The global space economy was projected to expand significantly over the coming decades.Reusable Rockets and Space X Anticipation Revive Investor InterestMore recently, the space economy is back in the spotlight. Growing confidence in the commercial viability of the space economy — driven by reusable rockets, falling launch costs, satellite miniaturization, and rising demand for orbital infrastructure — has helped transform space from a government-led initiative into a potentially trillion-dollar industry by 2034. At the same time, anticipation surrounding SpaceX and its IPO has also sparked a wave of new fund launches as ETF issuers compete to become the preferred vehicle for investors seeking indirect exposure to the company before it goes public. Regulatory filings submitted in May 2026 have officially paved the way for the aerospace giant to make its debut on the NASDAQ exchange in June. Seeking an unprecedented target valuation of roughly $1.75 trillion and aiming to raise a record-breaking $75 billion, the company currently commands absolute dominance, carrying almost 90% of all payload mass (the satellites, cargo, and crew) taken into orbit.Leading Space ETFsFor investors looking to capture this growth, the market now offers several distinct options, ranging from pure-play infrastructure funds to diversified tech-hybrid strategies. Among the most concentrated options is UFO, which has become something of a benchmark for investors seeking dedicated space exposure. With an expense ratio of 0.75%, the ETF tracks the VettaFi Space Index which requires that at least 80% of portfolio weight be allocated to companies deriving most of their revenue from space-related businesses. UFO emphasizes satellite communications, orbital infrastructure and launch providers. Its holdings include Rocket Lab (RKLB), Planet Labs, AST SpaceMobile, and satellite operators such as Viasat (VSAT) and Iridium (IRDM). The fund just passed $1 billion in assets under management, making it one of the largest dedicated space ETFs on the market. From SpaceX Exposure to InfrastructureThe Tema Space Innovators ETF (NASA) has drawn considerable investor attention because it offers exposure to the dominant force in commercial launch services without requiring a direct SpaceX listing. That exposure is made possible through a specialized financial structure known as a Special Purpose Vehicle. An SPV is a standalone legal entity created for a single, highly specific purpose. In this case, the SPV pools investor capital to acquire private, pre-IPO SpaceX shares through secondary market transactions or early venture funding rounds. Alongside its SpaceX allocation, the ETF also invests in public companies tied to the space economy, including Rocket Lab and Firefly Aerospace. NASA comes with an expense ratio of 0.75%.  Investor demand has been substantial. The ETF reportedly gathered more than $1.3 billion in assets within weeks of launch. Some investors have questioned whether indirect ownership through an SPV fully delivers the exposure implied by the ETF’s marketing.Commercialization Themes Gain MomentumAnother expanding segment of the market focuses less on exploration and more on the infrastructure underpinning the broader commercialization of space. For example, the Global X Space Tech ETF (ORBX) targets companies involved in launch systems, reusable rockets, orbital transport, and satellite-enabled data services. Unlike more diversified innovation funds, ORBX maintains a relatively high threshold for space-related revenue exposure among its holdings. Top holdings in its 30-stock portfolio include Rocket Lab, Planet Labs, and AST SpaceMobile, among others. Although smaller in size ($27 million assets under management as of May 25) compared with UFO or NASA, the fund reflects growing investor interest in the long-term buildout of space-based infrastructure. OBRX carries an expense ratio of 0.50%. See more: ETF Launch Engine: Record-Setting Pace in 2026Hybrid Strategies Blend Space With DefenseNot all space-focused ETFs pursue concentrated exposure. Some funds incorporate space themes within broader frontier technology or defense portfolios, aiming to reduce volatility associated with early-stage space companies: State Street SPDR S&P Kensho Final Frontiers ETF (ROKT ). ROKT combines space innovation with established aerospace and defense names. The ETF uses an AI-driven index methodology to identify companies operating in what it defines as “final frontiers,” including both space and deep-sea technologies. The result is a portfolio that balances speculative growth opportunities with more mature industrial businesses. Top holdings include Intuitive Machines, Iridium, and Redwire. Carrying a lower expense ratio of 0.45%, ROKT has garnered $214 in assets under management.  ARK Space Exploration & Defense Innovation ETF (ARKX ). Managed by Cathie Wood’s ARK Invest, ARKX takes an even broader approach with an expense ratio of 0.75%. The ETF includes not only aerospace and satellite firms, but also companies tied to robotics, artificial intelligence, autonomous systems, and additive manufacturing. That wider mandate makes ARKX less of a pure-play space vehicle and more of a disruptive technology strategy with a space allocation. ARKX has garnered $954 assets under management. Navigating the Rewards and Risks of Space InvestingFor financial advisors and retail investors alike, space ETFs are best viewed as a thematic satellite allocation rather than a core portfolio position. Their performance is inextricably tied to technological execution, shifting regulatory landscapes, macroeconomic capital conditions, and long-duration growth expectations — factors that can drive significant volatility over shorter time horizons. Ultimately, the deciding factor for portfolio construction comes down to positioning and timeline. Space ETFs are tailor-made for growth-oriented portfolios with extended investment horizons, high risk tolerance, and a specific appetite for secular industrial themes. For more news, information, and analysis, visit the Thematic Investing Content Hub. VettaFi LLC (“VettaFi”) is the index provider for UFO, which it receives an index licensing fee. However, UFO is not issued, sponsored, endorsed or sold by VettaFi, and VettaFi has no obligation or liability in connection with the issuance, administration, marketing, or trading of UFO.