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Search Historical Chart Analogs
Updated 31 October 2026 · 2 min read · 14 Contents
Plain-language meaning
Chart Analogs finds historical price windows whose shape most closely resembles a listing's most recent window, and shows what happened after each match over a chosen horizon.
Why it is useful #
It lets a researcher see the spread of forward outcomes after similar-looking price paths, rather than generalising from one remembered chart.
Where it appears and the workflow #
Open Chart Analogs (/Research/Analogs). Choose the exchange and symbol, the pattern window (20 to 120 bars), the forward horizon (5 to 60 bars), the number of matches K (5 to 50) and the scope: the listing's own history or the whole exchange. Analysis requires the advanced-research entitlement.
Calculation or source #
Log closes in each window are z-normalised, and similarity is the Euclidean distance between windows divided by the square root of the window length. Pearson correlation is reported beside it. For z-normalised windows the distance ranges from 0 (identical shape) to 2.
Prerequisites, inputs, period and unit #
Prerequisites are stored daily bars covering the window, the horizon and a margin. Distance is unitless; forward returns are percentages over the horizon in sessions.
Worked example #
Illustrative only: a 60-bar window may return 15 analogs with a median distance of 0.35; over the next 20 sessions 9 rose and 6 fell, with a median forward return of +2.4%. The spread of outcomes matters more than the median.
What high and low mean #
A lower distance means a closer shape match and a higher correlation means the windows moved together more closely.
Positive, negative and zero #
Forward returns can be positive, negative or zero. Distance is never negative.
Limitations and common mistakes #
A similar shape does not mean similar fundamentals, liquidity or macro conditions, and forward paths vary widely. Analogs are context, never a forecast.
Market-specific differences #
History depth differs by exchange and listing, so exchange-wide scope on a young market has a smaller pool of windows.
Suggested next steps #
Run a 60-bar search with K of 15, record the median distance and the share of matches that rose, then change the scope and explain the difference.
Educational use only #
This guide explains descriptive research evidence. It is not investment advice, a price prediction, a recommendation, a claim of predictive accuracy, or an instruction to buy, sell, rebalance or place an order.