Reference
Glossary
Every term Chart Echo uses, in plain language. No jargon left unexplained.
- Fractalpattern / setup
- A repeating shape in a price chart - a base, a breakout, a top, a capitulation low. Chart Echo treats the window of candles you frame as a fractal and looks for the historical windows that most resemble it.
- Pattern windowthe setup
- The slice of recent candles you choose as “the pattern” to match - anywhere from about 30 to several hundred candles. A tighter window matches short, sharp setups; a wider window matches broader structure.
- Match scoresimilarity
- How closely a historical window resembles your pattern, expressed as a percentage. It comes from vector similarity between the two shapes, allowing for differences in scale and (optionally) pace.
- Continuation windowwhat happened next
- The stretch of candles that followed a historical match - typically the next ~60. This is the “what happened next” that turns a lookalike into a useful, outcome-bearing precedent.
- Outcome statistics
- Aggregated results across all of a search’s matches: the directional split (up / flat / down), average and median return, average maximum gain and drawdown, and an overall confidence score.
- Confidence
- A 0–100 blend of how many matches were found, how strongly they agree on direction, how tight their outcomes are, and the quality of the matches. High confidence means many close matches that resolved similarly - not a guarantee.
- Drawdown
- The largest drop from a peak before recovery within the continuation window. Average drawdown tells you how much heat similar setups typically took, even when they ultimately rose.
- Volatility regime
- Whether the market backdrop at the time of a match was calm or turbulent. Matching regime matters: a calm-market analog behaves differently from a crisis-market one.
- Breadth
- How broadly a move is supported across the wider market. Strong breadth behind a setup is a different context from a narrow, single-name move.
- Projection conecontinuation cone
- A visualization of where the matched continuations went - a median path plus quantile bands (e.g. 25–75% and 10–90%). It shows the range of historical outcomes, not a forecast of one.