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Firefly Aerospace (NASDAQ: FLY - Get Free Report) and Sidus Space (NASDAQ: SIDU - Get Free Report) are both industrials companies, but which is the better business? We will contrast the two businesses based on the strength of their risk, valuation, profitability, earnings, analyst recommendations, institutional ownership and dividends. Profitability This table compares Firefly Aerospace and Sidus
While artificial intelligence is often viewed as a future capability in space, Firefly Aerospace Inc. (NASDAQ:FLY) CEO Jason Kim says it is already the connective tissue across the company's portfolio—from autonomously landing spacecraft on the Moon to processing U.S. Space Force missile warning data.
Space Exploration Technologies Corp. (NASDAQ:SPCX) has redefined the launch business, flying at a pace no other company has matched. The company recently completed its 100th Falcon mission of 2026 following a record of 165 Falcon launches in 2025, underscoring its dominance in orbital launch services.
AST SpaceMobile is building a first-of-its-kind space-based cellular network designed to connect directly to standard mobile phones. Firefly Aerospace provides specialized launch, lunar, and in-space services for government and commercial national security missions.
Firefly Aerospace presents intriguing upside in the commercial space sector, notably with its Alpha rocket targeting the small satellite launch market. FLY's fundamentals remain weak: deep negative free cash flow, high operating expenses, and a TTM Price/Sales ratio of 13.26, but rapid revenue growth and a $1.5B backlog provide promise. I see FLY as a high-risk, high-reward play best suited for risk capital, given technological hurdles, cash burn, and uncertain government funding.
Firefly Aerospace Inc. trading at a discount to peers amid strong quarterly results and robust backlog growth. The Q2 backlog surged to a record $1.5 billion supported by moon landing missions and Lockheed Martin launches, supporting a strong long-term growth trajectory. FLY's revenue guidance for 2026 remains $420–$450 million, with order timing causing quarterly volatility.
Space Exploration Technologies (NASDAQ:SPCX | SPCX Price Prediction) is the biggest IPO to hit the public market, and it's paved the way for one of the most active and choppy summers for the markets in a long time.
Hosted on Firefly's Blue Ghost lander, Zeno Power's payload will demonstrate nuclear energy capabilities to operate through extreme cold lunar temperatures Hosted on Firefly's Blue Ghost lander, Zeno Power's payload will demonstrate nuclear energy capabilities to operate through extreme cold lunar temperatures