10 Fastest-Growing Space Stocks to Buy Now

8. Karman Holdings Inc. (NYSE:KRMN)

Karman Holdings Inc. (NYSE:KRMN), which operates as Karman Space & Defense, is one of the fastest-growing space stocks to buy now. On May 29, Karman said its active pipeline had reached about $3 billion as of May 25, compared with about $1 billion as of March 31, 2025. The company also said it had secured or was negotiating several opportunities, including a space-launch production long-term agreement with an estimated value of about $250 million.

That pipeline gives context to Karman’s recent revenue growth. On May 12, the company reported first-quarter 2026 revenue of $151.2 million, up 51.0% year over year, while backlog reached $1.0 billion, up 61% from the prior-year quarter. Space and Launch revenue rose 29.5% to $43.9 million, helped by orders supporting legacy and emerging launch providers and spacecraft. Karman also raised its 2026 revenue outlook to $720 million to $735 million, showing how current demand is feeding into a larger growth base.

Karman Holdings Inc. (NYSE:KRMN), through Karman Space & Defense, provides payload protection, interstage, propulsion, launch, and other mission-critical systems for space and defense programs.