GuruFocus alternative

The Peter Lynch chart, at the P/E that fits the stock.

Draw a stock’s earnings line at 15×, at its own average P/E or at any multiple you choose, across up to 30 years, free.

GuruFocus’s Peter Lynch chart plots a stock’s price against its earnings at a P/E of 15. Theory A, built to visualize value investing, draws the same comparison for about 5,900 US stocks. It starts the line at the stock’s own average P/E, and puts analyst estimates and option breakevens on the same chart.

Chart Nike free →
Nike market cap charted against 20 years of earnings in Theory AView full-size chart
Nike (NKE) on October 27, 2026. In 2021 the market cap (dark line) rose far above earnings at Nike’s 24× harmonic average P/E (green area), then fell back as earnings shrank. Its trailing P/E is now 18×.

If you know the Peter Lynch chart, you know this one

Each part of the Peter Lynch chart has a counterpart on the Theory A analyze page, which also plots option breakevens to the right of today.

In the Peter Lynch chartIn Theory A
Price lineMarket cap line, with 20, 50 and 200-day moving averages
Earnings line at a P/E of 15, or one you chooseGreen earnings area at any multiple, starting at the stock’s own average P/E
10-year median P/E lineAverage P/E over the visible years: arithmetic, geometric, harmonic, median or least squares
Projected earnings from analyst estimatesAnalyst estimates drawn as dashed lines for the next few years

The biggest difference is where the line starts. A fixed 15× line marks any company the market has always paid a premium for as expensive. Starting at the stock’s own average P/E asks a narrower question: is it expensive compared with its own history? You can still type 15 to see Lynch’s line.

Theory A also plots market cap against total earnings rather than share price against earnings per share. The shape is the same, but buybacks show up as earnings per share growing faster than total earnings. And it uses reported net income, so one-off charges appear as dips.

GuruFocus and Theory A compared

GuruFocus is a broad research site built around what well-known investors own. Theory A is narrower: it puts the price, the business and the options market on one chart.

FeatureTheory AGuruFocus
Price vs earnings chartEarnings × any multiple, starting at the stock’s own average P/EPeter Lynch chart: earnings × 15 or a P/E you choose
Fair valueNo house estimate: you set the multiple and see what today’s price assumesGF Value line, from historical multiples, past returns and growth, and estimates
ScoresA decile rank on each metric among about 5,900 US stocksGF Score from 0 to 100
Screener36 free metrics with decile rankingsAll-in-One Screener with hundreds of filters
Investor trackingNot offeredGuru 13F portfolios and insider trades
OptionsOption chain with live Greeks, and breakevens on the earnings chartGurus’ option holdings from 13F filings
CoverageUS, mainland China and Hong Kong stocksGlobal

Every metric ranked against every stock

Instead of one combined score, the screener places each metric in a decile among about 5,900 US stocks, so you can see where a P/E sits among every other stock’s. One of those metrics compares each stock’s P/E with its own history.

Screener rows for NVIDIA, Apple, Alphabet, Microsoft and Amazon with values and decile dots for P/E dislocation, market cap, ROIC, P/E and PEG
The dot under each value marks its decile among all stocks, green at the favourable end.

Which tool fits you

  • GuruFocus, if you want to follow what well-known investors and company insiders are buying, need global coverage, or want a house fair-value estimate and a screener with hundreds of filters.
  • Theory A, if you want the earnings chart set to each stock’s own history, a decile rank for every metric, and option breakevens on the same chart as the business.

Draw Lynch’s line yourself

Open Nike on the analyze page and type 15 into the multiple box to draw the Peter Lynch line. Then pick an average P/E and compare the two. The earnings chart needs no account. See what Premium adds.

Open Nike in the analyzer →

GuruFocus, GF Value, GF Score, FAST Graphs, Macrotrends, Simply Wall St and Stock Rover are trademarks of their respective owners. Theory A is not affiliated with or endorsed by any of them. Theory A is a research tool and does not provide investment advice.