The commercial space sector has surpassed $500 billion in market value, according to NOAA’s Office of Space Commerce, with order books for satellite operators, launch providers, and earth-observation companies stretching years ahead.

SpaceX filed its S-1 with the SEC on May 20, 2026, while Rocket Lab’s Neutron rocket is targeting a fourth-quarter 2026 debut, and pure-play satellite names are seeing order backlogs balloon rapidly.

For investors seeking diversified exposure rather than single-stock risk, three ETFs cover the commercial space theme from distinct angles, each with different methodologies, fees, and risk profiles.

The three funds are the Procure Space ETF (NASDAQ: UFO), the ARK Space and Defense Innovation ETF (NYSEARCA: ARKX), and the SPDR S&P Kensho Final Frontiers ETF (NYSEARCA: ROKT).

UFO tracks the S-Network Space Index and weights constituents by the share of revenue derived from space, giving satellite operators heavier allocations than aerospace conglomerates with only small space divisions.

The fund’s top positions include Rocket Lab, Planet Labs, Viasat, MDA Space, and AST SpaceMobile, with satellite communications dominating at 46% of the portfolio and industrials representing 43%.

Geographic exposure is 71% U.S., with meaningful weights in Japan, Canada, and Luxembourg, capturing names such as SES and MDA that purely U.S.-listed funds would miss entirely.

UFO is up approximately 75% year to date and 172% over the past year, driven by sharp moves in holdings including Rocket Lab and AST SpaceMobile, with an expense ratio of 0.75%.

The fund holds around $1.32 billion in net assets, meaning less liquidity than larger thematic ETFs and a portfolio that can swing materially when any single satellite operator misses a launch window or loses a contract.

ARKX, rebranded this year as the ARK Space and Defense Innovation ETF, is the actively managed option, with Cathie Wood’s team selecting roughly 35 to 50 names across orbital aerospace, suborbital aerospace, enabling technologies, and aerospace beneficiaries.

That final category allows managers to own companies like Trimble, Kratos, and AeroVironment, which are not pure space plays but stand to benefit from cheaper launch costs and more satellites in orbit.

The active mandate means the fund can rotate when individual names look overextended or when defense electronics stocks re-rate on Pentagon contract awards, all at a 0.75% expense ratio identical to UFO.

ARKX is up approximately 28% year to date and 76% over the trailing year, less than half the gain UFO has logged, reflecting the cost of diversification across enabling and adjacency names.

Investors receive ARK’s view on innovation alongside space exposure, which has historically translated into higher beta during market sell-offs, raising questions about whether manager selection justifies foregoing UFO’s index-based purity at the same fee.

ROKT tracks the S&P Kensho Final Frontiers Index across space and deep-sea exploration with an equal-weighted methodology, meaning a small earth-imaging company carries as much influence as a defense prime contractor.

Planet Labs holds the largest weight at 8.2%, followed by Intuitive Machines at 8% and Iridium at 5.6%, while names like Lockheed Martin, Northrop Grumman, and L3Harris provide a defense backbone that UFO lacks.

Oceaneering International represents the deep-sea sleeve of the mandate, a portion of the portfolio that sits entirely outside the commercial space narrative investors may primarily be seeking.

ROKT charges 0.45%, materially below the other two funds, and has delivered a 58% year-to-date gain and a 131% one-year return, splitting the difference between UFO’s concentrated rally and ARKX’s more muted active result.

UFO suits investors wanting the highest-conviction expression of commercial space while accepting concentration risk, ARKX fits those trusting an active manager to navigate capital cycles and IPO supply, and ROKT belongs in portfolios seeking broader frontier exposure at lower fees with defense contractor stability.

Each of the three funds offers a distinct way to participate in the public market repricing already underway ahead of the anticipated SpaceX listing.