Archer Aviation vs. Space Exploration Technologies: Which High Flying Stock Is a Better Buy in 2026?

Are you looking to capitalize on the next frontier of transportation? Comparing Archer Aviation Inc (NYSE:ACHR) and Space Exploration Technologies Corp (NASDAQ:SPCX) reveals two very different paths toward dominating the skies and beyond.

Archer focuses on short distance urban air mobility with electric vertical takeoff and landing aircraft. SpaceX targets global connectivity and orbital transportation via its massive rocket fleet and satellite constellation. Both represent high risk plays in the evolving aerospace market, though they sit at vastly different stages of commercial maturity and scale.

The case for Archer Aviation

Archer Aviation develops electric vertical takeoff and landing (eVTOL) aircraft, positioning itself among industrial stocks focused on urban air taxi services and defense applications. The company maintains a conditional purchase agreement with United Airlines for its Midnight aircraft, contingent on FAA certification and final terms. It also collaborates with the U.S. Air Force, Stellantis (NYSE:STLA) and Boeing Co (NYSE:BA), having recently acquired several subsidiaries to bolster its defense segment.

In FY 2025, Archer Aviation reported revenue of $300,000. This early stage revenue was accompanied by a net loss of approximately $618.2 million. This reflects a company still in its pre-commercial phase as it pursues aircraft type and production certification.

As of its December 2025 balance sheet, the debt-to-equity ratio is roughly 0.1x. This ratio measures total debt, including short- and long-term obligations, against shareholders' equity, with a lower number indicating less reliance on borrowed money. Free cash flow was negative at $511.7 million, representing the cash remaining after operating and capital spending are covered.

The case for Space Exploration Technologies

SpaceX builds launch vehicles, spacecraft, and satellite broadband infrastructure, including its Starlink constellation, which serves over 10 million subscribers. The company is currently developing the Starship system to enable transport to orbit, the Moon, and Mars. While it serves a wide variety of government and commercial clients, specific major customer identities are not disclosed in recent filings.

In FY 2025, revenue reached nearly $18.7 billion, an increase of approximately 33% from the $14 billion reported in the previous year. Despite this top-line growth, the company reported a net loss of nearly $5 billion for the fiscal year. This performance reflects the massive capital requirements for building out the global Starlink network and developing next-generation heavy-lift rockets. The net margin, which calculates profit as a percentage of revenue, was a negative 26.4%.

As of its December 2025 balance sheet, the current ratio is approximately 1.4x, indicating the company maintains sufficient short-term assets to cover its immediate liabilities. Free cash flow, calculated as cash flow from operations minus capital expenditures, was about negative $14 billion in FY 2025. The current ratio is approximately 1.4x. Note that stock-based compensation (SBC) accounted for roughly 28.7% of operating cash flow, inflating reported cash generation, since SBC is a non-cash expense added back in the cash flow statement.

Risk profile comparison

Archer faces significant risks related to regulatory certification and the evolving FAA framework for air taxi operations. Any delays in flight testing or approval in key markets like Los Angeles could materially harm the business. The company also relies on successfully scaling manufacturing with partners like Stellantis while requiring ongoing capital to fund research.

SpaceX operates in a highly capital intensive industry where launch failures can result in massive financial and reputational losses. The company faces intense competition from established aerospace entities and emerging private launch providers globally. Maintaining its lead in satellite internet also requires constant deployment of new hardware and navigating complex international spectrum regulations.

Valuation comparison

SpaceX appears more traditionally valued based on its massive revenue base, while Archer's extremely high P/S ratio reflects its very early stage of commercial operations. Neither has a forward price-to-earnings ratio because they are not expected to turn a profit in the coming year.

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

Which stock would I buy in 2026?

Both companies have big aspirations.

Archer Aviation is taking concrete steps to get there. The federal government created the framework last year for real-world testing of eVTOL aircraft, a concrete step toward making Archer's vision a reality. Japan, South Korea, and Saudi Arabia are other countries building similar regulatory frameworks. A lot still has to happen for Archer's aircraft to get into the skies, but the notion that the nation's airspace is being regulated in a way that is holding back growth is one that has found favor.

Archer is taking steps to refurbish a small Los Angeles airport, called Hawthorne, for use as its testing grounds and is working to scale up its manufacturing capabilities to eventually reach capacity for 50 planes a year. Management has an initial plan to focus on military and cargo uses for its plane, which would be an easier path to early revenue. Future estimates are speculative, but Wall Street analysts see Archer turning its first profit in 2030, with $2.3 billion in revenue. But keep in mind, plenty of things have to go right between now and then.

SpaceX's various businesses intend to leverage the company's core launch capabilities, starting with reusable rockets. The ability to reuse boosters significantly lowers per-launch costs and spreads fixed manufacturing costs across multiple missions. Expectations are that scaling up quickly will happen, with Wall Street analysts projecting $39 billion in sales for fiscal 2026, a much lower net loss of around $1.6 billion, and profitability in 2027.

The lack of free cash flow appears to be crushing; projections indicate free cash flow will be negative $28 billion this year, then jump to negative $67 billion in 2027.

Still, the success of Tesla Inc (NASDAQ:TSLA) has made founder Elon Musk the richest man in the world and raised expectations that he can make an even greater fortune from SpaceX, as Space Exploration Technologies Corp is known. The business certainly has market support behind it, raising the world's largest IPO, $85.7 billion this year.

Space has a very real business in Starlink, which mitigates the possibility that grander plans won't come to fruition. Meanwhile, the aviation industry has shown there are few competitive moats, and Archer comes at a very high P/S multiple. SpaceX also has a premium P/S ratio, but it appears to be the wiser choice between the two for a long-term investor.

Brendan Coffey has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Boeing and Tesla. The Motley Fool recommends Stellantis. The Motley Fool has a disclosure policy.