Rocket Lab (NASDAQ: RKLB) has climbed 17% over the past month, reaching $75.31, a move that left the broader space sector well behind.

The Procure Space ETF (NASDAQ: UFO) gained just 1% over the same period, matching the modest advance posted by the SPDR S&P 500 ETF Trust (NYSEARCA: SPY).

SpaceX (NASDAQ: SPCX) mirrored Rocket Lab’s performance almost exactly, also gaining 17% over the past month to reach $172.72.

AST SpaceMobile (NASDAQ: ASTS), by contrast, rose only 1% over the same stretch to $62.94, making the Rocket Lab and SpaceX rally a distinctly two-company event.

Rocket Lab has announced a deal to acquire Iridium Communications, a move that would transform the company into a vertically integrated space operator.

Under that structure, Rocket Lab could design, build, launch, and then operate its own satellite constellations delivering communications services on a global scale.

The Iridium acquisition follows two earlier deals, with Rocket Lab having already purchased Mynaric for laser communications technology and Motiv for space robotics capabilities.

Rocket Lab currently operates the Electron small-lift rocket and the HASTE suborbital vehicle, while the medium-lift reusable Neutron rocket remains under active development.

Hardware and spacecraft built by Rocket Lab have flown on more than 1,700 missions across Earth orbit and deep-space exploration, giving the company broad flight heritage on both the launch and hardware sides of the business.

Revenue today is generated through products, meaning spacecraft and hardware components, and through services, meaning launch contracts, with customers including commercial operators and the U.S. Space Force.

Adding Iridium would layer recurring subscription fees from an operating satellite network on top of that per-launch revenue model, a meaningful structural shift for the business.

Execution risk is now the central concern for investors, since Rocket Lab is simultaneously integrating Mynaric and Motiv, advancing Neutron development, and absorbing a satellite network operator in Iridium.

Any one of those three undertakings could stretch a management team under normal conditions, and running all three at once leaves very little margin for delays or cost overruns.

With the stock already pricing in a favorable outcome across all three efforts, any setback on Neutron development or the Iridium integration carries greater downside risk than it would have before the recent rally.

Investors monitoring the stock should watch for updates on the Iridium transaction timeline and Neutron milestones, as both will heavily influence whether Rocket Lab achieves the vertically integrated model its acquisition strategy targets.