MongoDB (MDB) has become a talking point again after reporting fiscal 2025 revenue of US$2.01b, driven mainly by Atlas, while issuing a 2026 outlook below analyst expectations and highlighting new AI plans through its Voyage AI acquisition.

The share price has pulled back sharply in recent months, with a 30 day share price return of 23.76% and a 90 day share price return of 37.27%, even though the 1 year total shareholder return is 42.72%. Recent swings appear closely tied to the fiscal 2026 outlook and reactions to MongoDB's AI ambitions following the Voyage AI acquisition.

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So with MongoDB posting US$2.01b in revenue, a recent share price pullback, and an intrinsic value gap that looks narrow, is this weakness a genuine opening for long term investors, or is the market already pricing in future growth?

Most Popular Narrative: 25.5% Undervalued

The narrative fair value of $362.40 sits well above MongoDB's last close at $270.16, setting up a clear valuation gap that hinges on how investors view growth, cash flow, and leadership changes.

The fair value for MongoDB (MDB) is calculated by applying a 10.5x Forward EV/Sales multiple to the 2027 revenue estimate of $2.88 billion. This specific multiple is a sharp reduction from the prior 15x to 18x range seen in 2024 to 2025, reflecting the lower 17% growth guidance and the inherent risk in a "C-suite" leadership transition during a critical AI cycle.

Want to understand why this narrative still lands on a higher fair value despite slower guidance and leadership turnover? The key is how it balances revenue momentum, free cash flow strength, and premium sales multiples without assuming blue sky outcomes.

Result: Fair Value of $362.40 (UNDERVALUED)

However, this hinges on execution risk related to new sales leadership and the possibility that the 17% guidance signals a longer period of slower revenue expansion.

Another View: Market Ratio Sends a Different Signal

There is a tension between that $362.40 fair value and how the market is currently pricing MongoDB. The SWS fair value model suggests the shares trade only about 0.9% below fair value, while the P/S ratio of 8.8x is richer than the fair ratio of 7.7x, the US IT industry at 1.7x, and peers at 6.4x. For you, that raises a simple question: is this a modestly mispriced growth story or a case where expectations are still running hot?

Next Steps

If the mixed signals so far leave you unsure, that is the point. Use this moment to review the underlying data yourself with the 3 key rewards

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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.