Firefly Aerospace vs. Intuitive Machines: Which Space Infrastructure Stock Is a Better Buy in 2026?

Can the commercial space race produce a clear winner for your portfolio? Comparing Firefly Aerospace (NASDAQ:FLY) and Intuitive Machines (NASDAQ:LUNR) reveals two distinct paths into the final frontier.

Firefly focuses on end-to-end launch and landing services, while Intuitive Machines specializes in lunar infrastructure and data transmission. Both are scaling rapidly to meet government and commercial demand, making them key players in the growing space economy as private sector participation in orbit increases.

The case for Firefly Aerospace

Firefly Aerospace serves national security, government, and commercial customers with an approximate $1.4 billion backlog as of its latest annual report filed for FY 2025. Key partners include Lockheed Martin Corp (NYSE:LMT) and Northrop Grumman Corp (NYSE:NOC), though NASA and the U.S. Space Force remain central to its operations. Customer concentration like this adds a layer of risk to the business, especially as the company expands its launch infrastructure to Wallops Island and the Esrange Space Center in Sweden.

In FY 2025, revenue reached nearly $160 million, representing a roughly 160% increase over the revenue generated in the previous fiscal year. Despite this rapid top-line growth, the company reported a net loss of approximately $298 million for the period. The net margin, which shows the percentage of revenue remaining after all expenses, was close to negative 187%.

As of its December 2025 balance sheet, the current ratio is approximately 4.5x, indicating the company has sufficient current assets to cover its immediate liabilities. The debt-to-equity ratio is close to 0.3x, showing that total debt is a small fraction of shareholder equity. Free cash flow was nearly negative $238 million, representing the cash remaining after paying for operations and capital equipment, indicating the company is still in a heavy investment phase.

The case for Intuitive Machines

Intuitive Machines provides lunar delivery and data services, recently expanding its reach through the acquisition of Lanteris as noted in its latest annual report for FY 2025. It provides solutions for NASA and major defense stocks like the Missile Defense Agency, while also supporting international telecommunications customers. Customer concentration among these government entities is a notable factor for investors to monitor as the company provides end-to-end mission solutions.

In FY 2025, revenue reached approximately $210 million, which was a decrease of roughly 8% compared to the prior year. The company reported a net loss of nearly $83.3 million for the same period. Its net margin was approximately negative 40%, representing a significant improvement from the much deeper loss margins seen in the preceding fiscal year.

As of its December 2025 balance sheet, the current ratio is approximately 5.0x. The company reported a debt-to-equity ratio of nearly negative 0.5x, which means that its total liabilities exceed its shareholder equity. Free cash flow was close to negative $56 million, representing the actual cash used by the business after accounting for capital investments, which helps investors understand the rate at which the company is consuming cash.

Risk profile comparison

Firefly faces significant operational risks, as spaceflight is inherently dangerous and any launch failure can cause hardware loss or reputational harm. The company is also heavily dependent on U.S. government contracts, leaving it vulnerable to budget delays or shifts in federal priorities. Competition from other launch providers creates pricing pressure and a need to scale production very efficiently, while inflationary pressures could further increase operational costs.

Intuitive Machines deals with integration complexities following its rapid expansion through acquisitions like Lanteris and KinetX. Its reliance on a few major customers makes it sensitive to contract defaults, while it also competes with players like Rocket Lab USA(NASDAQ:RKLB) and Boeing Co (NYSE:BA). Technical failures or mission anomalies could lead to significant financial harm or data security breaches that might damage its relationship with civil and national security partners.

Valuation comparison

Intuitive Machines carries a significantly lower P/S ratio, which measures market cap divided by sales over the past twelve months. Meanwhile, Firefly offers a more modest Forward P/E, which compares the stock price to future earnings estimates.

Valuation metrics sourced from Financial Modeling Prep (FMP) and may differ from other data providers.

Which stock would I buy in 2026?

Firefly went public in an initial public offering a little more than a year ago at $45 a share. Shares have spent much of the past year below that mark, reflecting typical post-IPO volatility.

More important is the company's recent business success. Firefly Aerospace is the only private company to achieve a successful lunar landing, doing so in March 2025 with its Blue Ghost Mission I. The success of that effort has ingratiated Firefly with NASA, which sent 10 payloads to the Moon with last year's mission. The company now plans annual missions to the Moon to deliver payloads for NASA as part of the agency's goal of constructing a permanent lunar base. Exciting stuff, and considering the attention the SpaceX IPO has been bringing to space businesses, that can only be another positive for Firefly.

While future projections are inherently speculative, Wall Street analysts expect Firefly to top $440 million this year and reach $1 billion in annual revenue in its fiscal 2028.

Intuitive Machines started fiscal 2026 with its strongest quarter in history, delivering record revenue of $187 million. Management says they have an order backlog of $1.1 billion, including $400 million in early 2026 bookings. NASA is moving toward a steady access to space flights and deliveries, too, which bodes well for the company's longer-term sales. Revenue for fiscal 2026 is expected to more than quadruple to $952 million, with a narrower net loss of $66 million. Analysts expect the business to turn a profit for the first time in 2028.

To choose between these two, look at the ratios. While Intuitive Machines does have a much higher price-to-earnings, its P/S ratio is 5.1x, almost a third of the multiple Firefly claims, making it much more of an attractive entry point for long-term investors.

Brendan Coffey has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Boeing, Firefly Aerospace, Intuitive Machines, Lockheed Martin, and Rocket Lab. The Motley Fool has a disclosure policy.