The commercial space sector hit an inflection point this month. SpaceX began trading on NASDAQ on June 29, 2026, the launch backlog across orbital providers is approaching the half-trillion-dollar mark, and satellite broadband buildouts from Starlink and Amazon Kuiper are pulling in private capital faster than legacy aerospace can absorb it. For investors who want diversified exposure without picking individual names, three ETFs cover the trade from different angles: the Procure Space ETF (NASDAQ:UFO), the SPDR S&P Kensho Final Frontiers ETF (NYSEARCA:ROKT), and the ARK Space Exploration & Innovation ETF (NYSEARCA:ARKX).
Each fund attacks the theme differently. UFO is the highest-purity bet, weighting holdings by space-revenue share. ROKT applies an equal-weight, index-driven approach that pulls in deep-sea exploration alongside orbital names. ARKX is the actively managed option, with adjacent tech and industrial holdings tied to the space supply chain.
Why The Backlog Story Matters Now
Launch demand is concrete and measurable. SpaceX reported trailing twelve-month revenue of $19.3 billion with year-over-year growth of about 33%, and the company’s $2.16 trillion market capitalization sets a new floor for how public markets value orbital infrastructure. Backlog across the sector is expanding 15% to 20% annually, with Rocket Lab’s Neutron program, Firefly Aerospace’s lunar contracts, and Planet Labs’ government imaging deals all contributing.
Government spending compounds the private demand. The U.S. Space Force is investing $30.7 billion to achieve Global Mission Operations objectives, including $9.8 billion for satellite communications and $10.8 billion for space-based sensing. The FY 2027 space budget totals $59.7 billion across procurement and RDT&E, funding 31 launches. That is the spending tailwind sitting underneath every fund discussed below.
UFO: The Purest Read On Space Revenue
The cleanest way to express this theme is through UFO. By weighting holdings based on how much revenue they actually derive from space, the fund ensures that a satellite operator earning 90% of its sales from orbit receives more representation than a massive defense contractor tackling space projects as a side gig. This specific methodology is exactly why this ETF sits at the top of the list.
The portfolio holds 69 positions with $1.05 billion in assets under management and a 0.75% expense ratio. Top weights include Planet Labs at around 6%, Globalstar at around 5%, and Rocket Lab at around 5%, with SiriusXM and EchoStar rounding out the top five. These are operators whose income statements depend almost entirely on space, which is what a pure-play investor wants.
Performance has tracked the underlying names closely. UFO is up about 20% year-to-date and 63% over the past year, helped by Rocket Lab. That name is up about 21% year-to-date and 134% over twelve months. Planet Labs has been the other engine, with a one-year return of about 347%.
Volatility is the tradeoff here. The fund has a beta of 1.31 and a 52-week range from $28 to $68, and the last month alone saw a 30.7% drawdown as small-cap space names corrected. Concentrated purity cuts both ways.
ROKT: Equal-Weight And The Cheapest Option
This fund belongs on the list for two reasons. It is the lowest-cost vehicle in the category at a 0.45% expense ratio, and its equal-weight, AI-screened methodology spreads exposure across the value chain rather than concentrating on a handful of mega-cap names. By tracking the S&P Kensho Final Frontiers Index, the portfolio also captures deep-sea exploration through holdings such as Oceaneering International, which currently accounts for roughly 3.29% of the portfolio. That broader frontier framing is a distinct feature for investors who believe the next decade of innovation will stem from both orbital and subsea infrastructure.
Top holdings include Planet Labs at around 6%, Intuitive Machines at around 4%, and Iridium Communications at around 4%, with ESCO Technologies and Lockheed Martin rounding out the leaders. The aerospace primes anchor the portfolio while pure-play orbital operators provide upside. ROKT is up about 32% year-to-date and 77% over the past year, with about $247 million in AUM.
Liquidity is the catch here, and with less than $250 million under management, bid-ask spreads can widen during volatile sessions, and the fund attracts less trading volume than its peers. Long-term holders will not notice; active traders should.
ARKX: Active Management And Adjacent Bets
Rounding out the list is the actively managed option, ARKX. Cathie Wood’s team selects names rather than tracking an index, allowing the portfolio to include adjacent plays that automated methodologies would never capture. Amazon currently holds 4.23% of the fund, and Deere & Company holds 5.86%, as both are included for their critical roles in satellite-enabled logistics and precision agriculture. The core thesis here is that the space economy is far larger than what orbital operators alone represent.
Top weights are L3Harris near 8%, Rocket Lab near 8%, and Teradyne around 7%, with semiconductor exposure through AMD and NVIDIA reflecting ARK’s view that orbital compute depends on advanced silicon. The fund holds 35 positions across roughly $1.4 billion in assets with a 0.75% expense ratio.
Returns have lagged the pure-play peers this year. ARKX is up about 10% year-to-date and 35% over the past year. The diluted exposure to non-space names cuts both directions: it has muted upside when orbital pure-plays run, and it should cushion drawdowns when the same names correct. Investors paying for active management get manager discretion as the deliverable.
Choosing Between The Three
The decision comes down to how concentrated an investor wants the bet to be. UFO suits investors who want the highest-beta read on space revenue and are willing to accept the volatility that comes with small-cap orbital names. The fund’s revenue-weighted methodology is the closest thing public markets offer to a direct claim on the $500 billion backlog story.
Investors who prioritize lower fees, broader exposure to frontiers, and a methodology that avoids overconcentration in any single name should consider ROKT. Its equal-weight approach effectively softens the blow when a specific company fails, though it also caps your upside if one dominant firm happens to drive the sector.
The fund ARKX appeals to those who believe the space economy naturally spills into adjacent industries and want a portfolio manager making active, high-conviction calls on those market linkages. Whether the positions in companies like Amazon and Deere ultimately look prescient or simply like style drift will depend entirely on how the next twelve months unfold.
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