Part 04 · Candlestick Patterns · Tool
Candle Lab
Learn the five ideas behind every candlestick name, build any pattern from its prices, then practise spotting them with no labels.
Every price here is a synthetic exercise, not a quote or a recorded history of any stock.
Every candlestick name is one of five ideas. On a live chart, notice the idea first — the name can be looked up afterwards. Each family shows its core patterns; stricter forms and rare patterns sit underneath. Tap any pattern to open it in Build.
Full reference
Every pattern the Lab can name, one line each, with the trend it needs and what it suggests. Written from the same rules the Lab uses.
Start from an example
Tap a candle to edit it.
The lab reversed. Nothing is labelled: you name what you see. Ten to a round, and the ones you miss come back more often.
How far to trust the name
The shape is measured exactly. The same four prices always get the same name, and every name lists the rules it passed, with the measured value beside each one.
The lines are ours. Books disagree on where “small” ends — some call a candle a doji below 5% of its range, others below 10%. A candle near a line can carry a different name elsewhere.
Some names need what came before. A hammer and a hanging man are the same shape; only the trend before them differs. Set Before to see which name applies.
A name describes the past. It records what buyers and sellers did in those sessions. It does not say what the price does next, and on its own it is not a reason to buy or sell.