What Are You Actually Buying In RKLB Stock?

Rocket Lab (RKLB) stock has traded between $39.48 and $150.23 over the past 52 weeks. It now sits about 58% below its 52-week high, and anyone who bought twelve months ago is still up about 19%. None of that tells you what you would be buying today. Rocket Lab sells two quite different things, and the one its name points at is the smaller of them.

Most Of Rocket Lab's Revenue Comes From Building Satellites

In Q2 2026 the Space Systems segment brought in $189.5 million. Launch Services brought in $44.6 million , down 30% from the previous quarter despite a similar number of launches. Management attributes that drop to accounting rather than lost work, because revenue from those launches is recognized over time and much of it had already been booked.

So Rocket Lab earns most of its revenue building satellites and their parts. Electron flew its 16th mission of 2026 in September. Launch is a real franchise, and it is not where most of the money comes from.

You Are Paying For Two Things That Have Not Happened

The stock trades at 52 times sales, against 3.1 for the S&P 500, on revenue of about $0.8 billion over the trailing twelve months. At this valuation, investors are largely pricing in future execution on the Neutron medium-lift rocket and the financial impact of the pending Iridium acquisition, rather than current satellite production alone. Management targets delivery to the pad in Q4 2026, and says the window for a launch before the end of 2026 is narrowing.

And you are paying for Iridium, which Rocket Lab has agreed to buy and expects to close in mid-2027. Iridium, a global satellite communications network, serves more than 2.5 million subscribers and delivered over $870 million of revenue in its past year. That is more than Rocket Lab's whole trailing twelve months. Management calls it a relatively slow-growing business that brings profit rather than a hole in the income statement.

Rocket Lab is funding part of that with its own shares. It completed a $1.94 billion at-the-market equity program, close to 5% of its market value, the company said on September 15. The proceeds part-fund the cash payments for the Iridium acquisition and reduce debt commitments.

Can You Afford To Wait Until Neutron Flies?

The version of Rocket Lab you are buying does not exist yet. Today's Rocket Lab loses money running itself. Its trailing-twelve-month operating margin is deeply negative at -29.1%, against 18.6% for the S&P 500.

Growth is the honest answer to that loss. Q2 2026 revenue was a record $234 million, up 62% year over year. A company scaling that fast is allowed to lose money while it does it.