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Is It Too Late To Consider AST SpaceMobile (ASTS) After Its 1 395% Five Year Surge

Simply Wall St·05/26/2026 18:18:51
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  • If you are wondering whether AST SpaceMobile at US$105.86 is priced for long term potential or already ahead of itself, the valuation story is where things start to get interesting.
  • The stock has posted returns of 20.2% over the last 7 days, 38.6% over 30 days, 26.8% year to date, 326.2% over 1 year, a very large gain over 3 years and 1,395.2% over 5 years. This naturally raises questions about how much upside might already be reflected in the price.
  • Recent coverage has focused on AST SpaceMobile's efforts to build space based cellular broadband, including partnerships aimed at enabling direct to device connectivity and progress on satellite deployment plans. This news helps explain why sentiment has been so strong, as investors weigh the potential scale of the addressable market against the execution and financing risks involved.
  • Even so, the stock only scores a 1 out of 6 valuation check. Next up is a closer look at how different valuation methods line up for AST SpaceMobile and why a broader way of thinking about value could be even more useful by the end of this article.

AST SpaceMobile scores just 1/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: AST SpaceMobile Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model estimates what a stock could be worth by projecting future cash flows and then discounting them back to today’s dollars. It asks a simple question: what is all the future cash, in today’s terms, worth per share right now?

For AST SpaceMobile, the model used is a 2 Stage Free Cash Flow to Equity approach. The latest twelve month free cash flow is a loss of about US$1.71b, and analyst projections move through a period of continued cash outflows before shifting to positive free cash flow estimates. By 2030, projected free cash flow is about US$1.04b, with values between 2026 and 2035 based on a mix of analyst estimates and further extrapolations.

Discounting this stream of projected cash flows back to today gives an estimated intrinsic value of US$107.11 per share. At a current share price of US$105.86, the model implies the stock trades at roughly a 1.2% discount, which is effectively in line with this particular cash flow view.

Result: ABOUT RIGHT

AST SpaceMobile is fairly valued according to our Discounted Cash Flow (DCF), but this can change at a moment's notice. Track the value in your watchlist or portfolio and be alerted on when to act.

ASTS Discounted Cash Flow as at May 2026
ASTS Discounted Cash Flow as at May 2026

Head to the Valuation section of our Company Report for more details on how we arrive at this Fair Value for AST SpaceMobile.

Approach 2: AST SpaceMobile Price vs Book

For companies that are still building toward profitability, the price to book, or P/B, ratio is often a useful anchor because it compares what you are paying for the stock with the accounting value of the company’s net assets.

In general, the higher the expected growth and the lower the perceived risk, the more investors may be willing to pay above book value, while slower growth or higher risk usually lines up with lower P/B levels being seen as more typical.

AST SpaceMobile currently trades on a P/B of 15.21x. That sits well above the Telecom industry average of 1.22x and also above the peer group average of 11.92x. Simply Wall St’s Fair Ratio metric goes a step further than these simple comparisons by estimating what a “normal” P/B might be after factoring in elements such as earnings growth, margins, market cap, industry characteristics and company specific risks.

Because the Fair Ratio pulls these pieces together into a single benchmark, it can give a more tailored view than just looking at sector or peer averages on their own. In this case, the Fair Ratio is below the current 15.21x P/B, which points to the stock trading above that model based yardstick.

Result: OVERVALUED

NasdaqGS:ASTS P/B Ratio as at May 2026
NasdaqGS:ASTS P/B Ratio as at May 2026

P/B ratios tell one story, but what if the real opportunity lies elsewhere? Start investing in legacies, not executives. Discover our 20 top founder-led companies.

Upgrade Your Decision Making: Choose your AST SpaceMobile Narrative

Earlier it was mentioned that there is an even better way to understand valuation. Narratives on Simply Wall St take the story you believe about AST SpaceMobile, link it to explicit assumptions for future revenue, earnings and margins, turn that into a Fair Value that updates automatically as new news or earnings arrive, then let you compare that Fair Value with the current price so you can judge for yourself whether a more cautious view like a US$25 to US$55 range or a more optimistic view closer to US$95 fits how you see the company and its risks.

Do you think there's more to the story for AST SpaceMobile? Head over to our Community to see what others are saying!

NasdaqGS:ASTS 1-Year Stock Price Chart
NasdaqGS:ASTS 1-Year Stock Price Chart

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.