Doji
A candle whose open and close are nearly equal, leaving almost no body — buyers and sellers finished the period level.
Also called: dragonfly doji · gravestone doji · long-legged doji · indecision candle
What it means
A Doji has a negligible body relative to its range. Read alone it means indecision, which is to say it means very little: a Doji in a tight range is noise, and the same shape after an extended move is a genuine stall.
The named variants carry much more than the generic shape. A Dragonfly has a long lower wick and almost no upper one — price was rejected downward and recovered the whole move. A Gravestone is the inverse. A Long-Legged Doji has wicks both ways, which is indecision with volatility rather than indecision with calm.
Because every variant is also technically a Doji, the order a tool tests in decides which label you see.
How OptionLab Pro’s engine uses it
In the live engine
Dragonfly and Gravestone are checked BEFORE generic Doji, so the directional variant is reported whenever it qualifies — if the order were reversed, the generic test would match first and neither variant could ever fire. Doji family patterns are also subject to the location multiplier: the same candle is weighted up inside a Smart Money zone and down out of context, because an indecision candle at a level means something an indecision candle in open space does not.
go/internal/engine/candles.go (Dragonfly/Gravestone before Doji, location multiplier)The common mistake
Where traders get this wrong
Trading a Doji as a reversal signal on its own. It describes a period that resolved level — it is a question, not an answer, and what makes it tradeable is where it appeared and what came next. Also: reading a Dragonfly and a Gravestone as the same pattern because both are Dojis; their wicks point opposite ways and so does their implication.
Go deeper
There is a full lesson on this in the Academy, with an interactive widget and a Hindi translation.
Related terms
Educational and analytical content only. OptionLab Pro is not a SEBI-registered investment adviser or research analyst and does not give buy or sell recommendations. Derivatives trading carries a high risk of loss.