Fair Value Calculator Pro

What a stock is really worth.

21 valuation models, distilled into one number: fair value. Calculated daily, for more than 35,000 stocks.

  1. 01Find stocks trading below their fair value.
  2. 02See at once whether the business is financially sound.
  3. 03Let your watchlist keep watch for you.
Backtested over 34 years of market data · tracked live
Start 14 days free, no card Full access · cancel anytime · then $9.90/mo
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★ The original since 2016 Peer-reviewed factor research Tested on 34 years of history 35,000+ stocks No credit card
Amazing Tool
“Amazing Tool. Quick & easy. Exactly what I was looking for! Chapeau! I would recommend it to everyone!”
Gunther Hingsammer, Austria · Trustpilot · Jul 2026
unprompted review
Simple and Effective
“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, Austria · Trustpilot · Jul 2026
unprompted review

★ 4.0 on Trustpilot →

01The verdict

One ticker in,
one verdict out.

Type in any stock. Price, fair value, quality and evidence come together on one screen, and you get a verdict instead of forty tabs of ratios.

Two questions decide it: Is the fair value above the price? Does the quality hold up?

Live price in
Fair value modeled
Upside & evidence checked
Verdict delivered
Real app view
Stock detail view in the Fair Value Calculator
02How the number is made

21 valuation models.
25 quality factors.
One verdict.

21 valuation modelsflow into the fair value
25 quality factorsflow into the score
DCF · FCFOwner EarningsDCF · RevenueDCF · EBITDAGraham-DoddPeter LynchPEGEarnings PowerGordon GrowthDividend DCFP/E MultipleP/S MultipleP/B MultipleEV/EBITEV/EBITDAEV/RevenueNCAVResidual IncomeROIC ReinvestGrowth EarningsMargin DCFGross ProfitabilityReturn on AssetsReturn on EquityProfit MarginAsset TurnoverΔROAΔGross marginΔAsset turnoverΔEBITDA marginRevenue growthOCF marginFCF marginFCF yieldAccruals qualityReinvestment efficiencyCapEx intensitySolvency (E/A)Debt/Equity (inv.)Altman Z-ScoreCash/AssetsEquity growth 3YAsset growth 3YShare issuance 1YShare issuance 3YBuyback flow
Fair Value
$0
from 21 models, weighted
Quality score
0
from 25 factors, quantified
ICBC · Industrial & Commercial Bank= The verdict: undervalued, solid quality
03The feed

Fresh every day.
Cards or table.

The feed serves up newly valued stocks from around the world, as verdict cards or one dense table. See something worth tracking? One tap on + Watch and it's on your watchlist.

  • ✓Card viewThe verdict at a glance: price, fair value, upside, quality.
  • ✓Table viewMany stocks at once, dense and sortable.
  • ✓+ WatchOne tap, and the stock sits on your watchlist.
Real app view
Fair Value Calculator home feed in card view
The same home feed in table view
Real app views · sequence illustrative.
04Then it watches for you

The watchlist thinks
like a fund manager.

Pro checks your stocks against fair value, quality and trend, day after day. If anything slips, you see it first. Two signals cover it:

  • ✓"On track"All good. The thesis holds, nothing to do.
  • !"Review"Fair value, quality or the 300-day trend has moved against you.
  • ✓Email alertsThe moment a holding flips to Review, the email is already on its way.
Real app view
Watchlist in the Fair Value Calculator with on-track signals
Real app view · sequence illustrative.
05Your portfolio as a whole

Spot concentration risk
before it hurts.

Pro lays out your watchlist by sector, country and size, then suggests a cleaner allocation. Less concentrated risk, and your strategy stays your strategy.

✓ Concentration risk reduced
Real app view
Sector allocation with concentration warning
Diversification grade with balance criteria
Real app views · sample portfolios, not financial advice.
06The top-down process

From the whole market
to the one stock.

Work the way professionals do. Start with the whole market, narrow to a sector, filter hard. What's left is one stock and one verdict.

Whole-market analysis

Is the market expensive or cheap right now? Buffett Indicator, Fed Model, Shiller CAPE and our AI valuation give you one honest read.

Real app view
Market valuation in the Fair Value Calculator

Sector analysis

The heatmap shows which sectors and industries run hot and where value sits. One tap drops you into the industry.

Sector heatmap of market valuation

Screener with strategies

35,000 stocks, sharp filters and ready-made strategies: Big Names, Top Rated, Buffett, Lynch, Greenblatt and more. Out the other end comes your shortlist.

Real app view
Ready-made strategy screens in the app
Screener results with fair value and upside

The stock

At the end, one stock is left standing: price, fair value, quality, verdict. Straight onto your watchlist.

Illustrative, Pro shows live figures.
Pro in action

The whole tool.
In 90 seconds.

A walkthrough of the real app: from the feed to the verdict to your watchlist.

All of this is in Pro. 14 days free: no card, then $9.90/mo, cancel anytime.
Start 14 days free, no card
07Proof, not promises

34 years of
backtest evidence.

We backtested the method across 34 years and thousands of stocks. The ones our model called undervalued beat the market, in both halves of the sample.

Our strategy vs. the broad market · 1992→2026 · indexed to 100 · log scale · dividends reinvested
1k 100
Strategy +13.7%/yr Broad market +8.0%/yr

Full backtest 1992→2026, dividends reinvested, log scale. The past does not guarantee the future.

0
years backtested
0
stocks analyzed
0
valuation models
Real people

Pro has a face.
And a community.

I build the Fair Value Calculator in the open, every day. And the community shows what they make of it.

Dr. Peter Klein
Dr. Peter Klein, BA
Founder · building Pro in the open
24.7K Follower 9.6K Follower YouTube
The community's best watchlists Top 3 of 742 participants
Investor #9305 11 positions
CAT +788.7% MSFT +281.7% JPM +253.2%
+184.4% avg. since added
Investor #1147 12 positions
MU +570.5% TTMI +95.9% TSM +67.8%
+70.7% avg. since added
Investor #1720 5 positions
ASML +107.0% MPWR +75.4% RIO +52.4%
+55.2% avg. since added

Avg. return of watchlist positions since they were added, equal-weighted, pseudonymized. The past does not guarantee the future. Not financial advice.

What Free does, what the trial unlocks, what Pro adds
Feature Free Trial (14 days)
= full Pro		 Pro
Fair value, quality and evidence for every stock ✓ ✓ ✓
Screener and all filters across the whole universe ✓ ✓ ✓
Compare stocks and all calculators ✓ ✓ ✓
Watchlist of up to 7 stocks, saved in your browser ✓ ✓ ✓
Diversification donut by sector, region and size ✓ ✓ ✓
AI assistant 5 questions/day 50 questions/day 50 questions/day
Watchlist with no cap, in the cloud, on every device · ✓ ✓
Email the moment one of your stocks flips to Review · ✓ ✓
Diversification manager: correlation and the exact swap · ✓ ✓
Watchlist optimizer (Perfect Watchlist) · ✓ ✓
Market valuation cockpit · ✓ ✓
Account recovery codes · ✓ ✓

Included in Free

  • Fair value, quality and evidence for every stock
  • Screener and all filters across the whole universe
  • Compare stocks and all calculators
  • Watchlist of up to 7 stocks, saved in your browser
  • Diversification donut by sector, region and size
  • AI assistant Free: 5 questions/day · Pro: 50 questions/day

Pro only, already included in the 14-day trial

  • Watchlist with no cap, in the cloud, on every device
  • Email the moment one of your stocks flips to Review
  • Diversification manager: correlation and the exact swap
  • Watchlist optimizer (Perfect Watchlist)
  • Market valuation cockpit
  • Account recovery codes
Do I need a credit card for the trial?
No. The trial starts without payment details.
Am I charged automatically after the trial?
No. Without a card on file nothing can be charged. After 14 days the trial ends and your account continues as a free account until you actively choose Pro.
What does Pro cost and when does billing start?
The first month is $1, then $9.90 a month. Billing starts only when you order Pro. Nothing is charged during the trial because no card is on file.
Trial or subscribe directly, what is the difference?
Both give you the same full Pro. The trial runs 14 days without payment details and ends on its own. If you are already sure, subscribe directly and pay $1 for the first month.
How do I cancel?
Any time in your account via subscription management, with no notice period.
What happens to my data if I go back to Free?
Your watchlist stays. Beyond 7 stocks it simply is no longer synced to the cloud, and the Pro tools are locked again.
08Your move
14 days free· $9.90/mo

Gut feeling isn't a method.
21 models are.

Start 14 days free, no card

No card · then $9.90/mo · cancel anytime · or subscribe now: first month $1

Full Pro access in the trial Ends automatically, nothing charged Not financial advice
Start freefree · no card