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Know What a Stock Is Really Worth

The hard numbers behind a company reveal what a stock is really worth compared to its market price. Combine fair value with our quality score, save great stocks to your watchlist, and use proven tools to build a better portfolio.

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What our 4,110 users say

★ 4.1 on Trustpilot →
  • Trustpilot ★★★★★
    “This tool is great. I use it every time I want to buy a stock or study a stock. You get a valid calculation if you're buying an over- or undervalued stock. A perfect tool.”

    Samad Golzari, GermanyAug 2026

  • Email
    “Impressive how quickly you implemented that. Thank you, that really helps me.”

    DanielAug 2026

  • Instagram
    “That was a super quick fix, Peter. Amazing. Your application is a gem for a beginner like me.”

    Hemant P., IndiaAug 2026

  • Trustpilot ★★★★★
    “I've been using this service and I'm very impressed with its accuracy. It has helped me make better investment decisions and achieve good results. I'm looking forward to future updates and improvements. I definitely recommend giving it a try, especially if you don't have enough time or extensive knowledge about investing.”

    Alireza Fasih, AustriaAug 2026

  • Forum
    “The interface is really well done, despite all the information it holds.”

    MatthesAug 2026

  • Forum
    “Cool tool, I hadn't come across it before. Impressive.”

    Lever H.Aug 2026

  • Forum
    “Even with a great deal of information available, it comes across as quite clear and easy to understand.”

    hattifnattJul 2026

  • Trustpilot ★★★★★
    “Amazing Tool. Quick & easy. Exactly what I was looking for! Chapeau! I would recommend it to everyone!”

    Gunther Hingsammer, AustriaJul 2026

  • Trustpilot ★★★★★
    “Easy to use, well-designed, and provides a quick, easy-to-understand estimate of fair value. A very useful tool for anyone looking to make more informed investment decisions.”

    Hannes Oblak, AustriaJul 2026

  • Pro user
    “Not just an amazing website, but also amazing customer service. The error in my watchlist is fixed. Thank you very much for quickly fixing the problem.”

    verified Pro userJul 2026

Dr. Peter Klein, BA Founder
33K 18K 4.1

26 valuation modelsmodels 37 quality factorsfactors 6 AI factorsAI factors 2,000+ data pointsdata points 69 criteria per stock criteria →

Explore the tools

Go ProAlerts, watchlist and the full screener Financial calculatorsDCF, Graham, PEG and more

Updates

What has changed

Tool updates this weekOct 19, 2026

Hi there, here are the changes from the last week in the tool.

  • Trading volume and free float now show as badges on stock pages and in the feed.
  • The KI chat recognizes more company names, abbreviations and ISINs correctly.
  • Dispersion in the watchlist displays as a number from 0 to 100.
  • The Academy added new text lessons and shorter videos.
  • Comparison pages now have their own titles and descriptions.
  • Feed cards show low trading notes even without price values.

Let me know your comments and suggestions.

Peter

Earlier updates
Update in the Fairvalue ToolOct 12, 2026

Hi there, here are the updates from the last week in the tool.

  • Search now shows recent and popular stocks when the field is empty.
  • AI verdicts include explanations and mention the main risk.
  • The academy has new scenes and an updated avatar.
  • The watchlist offers a quick tutor and improve buttons.
  • Team notes appear on more stock pages with adjusted design.
  • The feed shows cards first and loads faster.

Let me know your comments and suggestions.

Peter

What's new in the tool this weekOct 10, 2026

Hi there, here are the main changes from the last few days.

  • The watchlist now shows tiles, top bars and a dispersion button.
  • Market valuation combines models and indices in one chart without plateau.
  • Portfolio overview displays valuation and quality on a 0-100 scale.
  • Academy offers a full video course on YouTube in both languages.
  • Search by ISIN finds companies under previous names too.
  • Design and mobile view are cleaner now.

Let me know what you think or if you have suggestions.

Peter

Posts

Oct 19, 2026What Are Blue-Chip Stocks? A Plain Answer With Real Numbers Oct 18, 2026What Is a Good P/S Ratio? It Depends on the Sector Oct 18, 2026Doesn't look bad Oct 18, 2026How Do You Calculate the Fair Value of an ETF? Oct 18, 2026How Much Are My Shares Worth? Two Simple Answers Oct 17, 2026How to Calculate Price to Cash Flow Ratio Oct 11, 2026A solid, high-quality company with strong cash flows and long-term potential. AI presents … Sep 5, 2026P/E Ratio by Sector: Live Valuation Ratios by Industry

Frequently Asked Questions

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Is it still worth investing in stocks now?

That depends less on the calendar than on the price. We calculate the fair value of 35,000+ stocks every day and show how far the whole market, each sector and each single stock sit from it. An expensive market does not rule out undervalued single stocks, it only changes how much you put in at once. See the market and the cheap sectors →

What is Fair Value Calculator?

Fair Value Calculator estimates what a stock is really worth from its fundamentals, not its daily price. For 35,000+ stocks worldwide it shows a fair value, a quality score and how much evidence backs each estimate, so you can spot over- and undervalued companies at a glance. See the methodology →

How is a stock's fair value calculated?

We estimate a company's intrinsic worth from 26 independent valuation models running on its reported financials, then blend them into one figure weighted by how much trustworthy data backs it. That way the result never hangs on a single formula. See the methodology →

What can I use for free?

Browsing, searching and seeing fair values is free and needs no sign-up. The full analysis, with every valuation model and the history, is open for 8 stocks a month without an account and 13 with a free account. You also get a free watchlist: 5 stocks without an account, 10 with one.

What additional features are included with Pro?

Pro ($9.90 per month or $99 a year, first month $1) adds the full screener across 28,000+ stocks, watchlist alerts when a holding turns over- or undervalued, diversification and market-valuation checks, and every quality factor. You can cancel anytime. See Pro →

Is fair value a buy recommendation?

No. A fair value is an analytical estimate of what a business is worth, not advice to buy, hold or sell. It is a starting point for your own research. Nothing on the site is financial advice, and past results are no guarantee of future outcomes.

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