Should You Sell Your RKLB Stock Now, Before Neutron Flies

Investors holding Rocket Lab (RKLB) stock face a complicated decision. While sales grew 62% in the latest quarter from a year earlier, the company still loses money. With no earnings to anchor the share price, valuation becomes a challenge. Management has also tied the company's first adjusted profit to a rocket that has not flown yet. So what are you paying for when you hold Rocket Lab at today's price?

You Are Paying About 61 Times Rocket Lab's Sales

Right now, Rocket Lab trades at 61.4 times its sales over the past twelve months, compared with 3.0 times for the S&P 500. Because the company generates negative earnings, a standard price-to-earnings ratio is not meaningful. In the absence of net income, the price-to-sales ratio-dividing market value by a year of revenue-becomes a common yardstick.

A multiple this far above the broader market may mean buyers are paying for revenue Rocket Lab has not earned yet.

How Fast Is Rocket Lab Growing?

Over the past three years, Rocket Lab has grown its revenue by an average of 49.3% a year, easily outpacing the 5.8% average for the S&P 500. Management expects that momentum to carry forward, underpinned by a growing backlog of signed contracts.

Rocket Lab closed its second quarter of fiscal 2026 with about $2.36 billion in backlog, which measures signed work that has not yet been delivered. During the August 10, 2026 call, management said it expects about 45.5% of that backlog to become revenue within twelve months. That translates to roughly $1.07 billion, compared with the $0.8 billion of revenue recorded over the past twelve months.

The backlog comes from two businesses: launching small satellites on its Electron rocket and building satellites for clients. Among the wins is a $397 million contract to build and launch Flatellite spacecraft for the Space Force.

When Does Rocket Lab Expect Its First Adjusted Profit?

Management expects to record its first adjusted profit in the quarter following the first successful launch of Neutron, a new rocket currently in development. The company tracks this milestone using adjusted EBITDA, a profit metric measured before certain costs. During the same call, management indicated that positive cash flow would probably arrive 18 to 24 months later.

Until then, Rocket Lab is spending. Free cash flow was negative $110.1 million in the second quarter, and management expects to maintain high levels of spending while developing Neutron.

For investors, the risk is timing. Management said that the window for a Neutron launch by the end of the year is narrowing. By the company's own timetable, a later launch would mean a later adjusted profit.

Right now, Rocket Lab is targeting delivery of Neutron to the launch pad in the fourth quarter of 2026. While placing a Neutron on the pad by late December would meet that delivery target, it makes an orbital flight before year-end increasingly improbable, making it likely that the first launch-and the profit milestone tied to it-will slip into 2027.

How To Act On RKLB?

Now you know RKLB better. And that's our purpose: to make you informed before you invest your money. However, making a bet on a single stock carries its own risks.

There is a smarter choice. Since its inception, the Trefis High Quality (HQ) Portfolio has beaten the benchmark that combines the three major indices - the S&P 500, S&P Mid-cap, and Russell 2000. And it did so without taking the concentrated risk that comes with do-it-yourself stock picking.

If you'd rather act on RKLB itself:

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