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Rocket Lab (RKLB) Stock May Be 37% Undervalued Despite Neutron Launch Buzz

Simply Wall St·09/27/2026 00:21:59
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Rocket Lab has seen its stock price move sharply in recent years, and the question now is whether the cash the business can generate over time lines up with that share price. With a Discounted Cash Flow (DCF) estimate available, the focus turns to what the current valuation implies about the durability and timing of those cash flows.

  • Over the past 3 years the stock has delivered a very large gain of about 1,588.4%, which puts a lot of weight on whether its cash generation can eventually support that kind of move.
  • Recent news around the Neutron rocket program, the planned Iridium Communications acquisition and a large equity raise all feed directly into expectations for future launch volumes, recurring satellite services revenue and the upfront capital Rocket Lab may need before those cash flows mature.
  • If you'd rather focus on book value, this one's for you. See why Rocket Lab's 12.7x P/B tells a different valuation story.

The issue now is whether Rocket Lab's current share price around US$73.95 is justified by the cash flows implied by its intrinsic value estimate under the Discounted Cash Flow approach.

If you want to stress test how this kind of cash flow question looks across a wider set of high quality opportunities, compare Rocket Lab with companies in the 32 high quality undervalued stocks

Is Rocket Lab Still Cheap on Cash Flow?

The Discounted Cash Flow (DCF) model here attempts to link Rocket Lab's future cash generation to today’s US$73.95 share price. Latest twelve month free cash flow shows a loss of about US$370.5 million, so the whole exercise rests on the expectation that this early stage cash burn eventually gives way to sizeable inflows as launch cadence, Neutron missions and satellite services scale.

Those projections assume free cash flow shifts from losses to strong growth over the next decade, with estimates in the later years reaching into the low single digit billions of US$ annually. Because the Iridium Communications deal adds a layer of recurring satellite revenue on top of launch contracts, the model treats Rocket Lab as a business that could become much more cash generative than its current numbers suggest. This helps explain why the DCF projections put Rocket Lab's estimated intrinsic value substantially above the current share price. Because the Neutron rocket program is expected to address the gap left as Falcon 9 rideshare availability tightens, the implied upside from the cash flow outlook leans heavily on execution against that opportunity. Find out what Rocket Lab could be worth using our Discounted Cash Flow (DCF) estimate.

The Rocket Lab Narrative: What Would Justify Today's Price?

Narratives for Rocket Lab on Simply Wall St's Community page pick up where the DCF puzzle leaves off by spelling out which paths for growth, margins and earnings would need to play out for the stock to be worth materially more or less than today. Each one treats fair value as a thesis about Rocket Lab's business that can be tracked over time so you can see how the story holds up as new information arrives.

Rocket Lab attracts two very different readings, with some community members seeing material upside while others think expectations already look stretched.

Bull case: 24% undervalued

"Rocket Lab USA seeks to vertically integrate itself throughout the $800 billion space 'backbone' in order to attract the customers operating within that $1 trillion top component of the 'space economy'..."

Discover why this Narrative puts Rocket Lab at 24% undervalued.

Bear case: 355% overvalued

"The entire valuation is 'priced for perfection,' which means any delay causes volatility..."

Explore why this Narrative puts Rocket Lab at 355% overvalued.

Rocket Lab's price is only one piece of the investment puzzle

Cash flow forecasts tell you what the business might earn, but the people steering Rocket Lab, how they are rewarded and what they are aiming at can change that picture completely. See who runs Rocket Lab and how they are paid.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.