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Understand the method behind the matches

Everything we know about reading the market’s history - explained in plain language, no jargon left behind.

Start here

How it works

The end-to-end walkthrough: framing a pattern, fingerprinting it, searching 450M windows, and reading the outcomes.

Under the hood

Methodology & limits

How the index is built, how scores and confidence are computed, and an honest account of the limitations.

Reference

Glossary

Plain-language definitions of every term - fractal, match score, continuation window, drawdown, projection cone.

In practice

Use cases

How traders, long-term investors, and crypto watchers each put historical pattern matching to work.

Guide

What are chart fractals?

Why price patterns repeat, what “fractal” means in a charting context, and how to think about precedent.

Guide

Reading historical analogs

How to interpret a set of matches - direction, spread, drawdown, and confidence - without fooling yourself.

Guide

Framing a pattern window

The most important input you control: how long a window to match, and how it changes the results.

chart echo

The market’s own memory. Find historical chart patterns that match your setup and see how they actually played out.

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Guides

  • What are chart fractals?
  • Reading historical analogs
  • Framing a pattern window

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© 2026 Chart EchoHistorical chart precedent for research and education only - not financial advice.