A candlestick shows four prices for its period: open, high, low and close. Only a handful of patterns are worth watching: the engulfing, the pin bar or hammer, and the doji. None of them work in isolation. A pattern at a strong support or resistance zone, in line with the trend, is a signal. The same pattern in the middle of nowhere is noise.
How to read a candle
Each candle encodes four numbers. The body runs from the open to the close, coloured one way if price closed down and the other if it closed up. The thin wicks, or shadows, above and below mark the high and low the period reached but did not hold.
That is the whole language. A long body means one side dominated the period. Long wicks mean price was rejected from an extreme. Every pattern is a combination of bodies and wicks telling you who won the fight.
What a pattern tells you
A pattern is a snapshot of a shift in the balance between buyers and sellers. An engulfing candle says momentum flipped hard in one period. A long wick says an attempt in one direction was firmly rejected. That is real information.
It is not a standalone buy or sell button. Backtests of raw patterns with no context show little edge. The value appears only when the pattern confirms something the chart was already suggesting.
The engulfing pattern
A bullish engulfing is an up candle whose body completely covers the previous down candle's body. Buyers overwhelmed sellers in a single period. A bearish engulfing is the mirror image. It is the clearest one-candle sign of a momentum shift.
It carries weight when it forms at a level. A bullish engulfing off a tested support zone is a real reversal cue. The same candle mid-range is just a big candle.
The pin bar and hammer
A pin bar has a small body and one long wick. The hammer and the shooting star are versions of it. The long wick shows price pushed hard in one direction, was rejected and closed back near the open. It was a failed attempt.
A hammer with a long lower wick at support says sellers tried to break lower and could not. Like the engulfing, its edge comes from where it prints, not from the shape alone.
The doji
A doji has almost no body, because the open and close are nearly equal, with wicks on one or both sides. It signals indecision. Neither side controlled the period. After a strong run, it can warn that momentum is stalling.
On its own a doji is weak. It is a caution flag, not a trade. Wait for the next candle to resolve the indecision before acting.
Why context is everything
The mistake that costs beginners money is trading patterns anywhere they appear. A pattern is a trigger, and a trigger needs a reason. Look for three things together: the right pattern, at a strong level, in the direction of the higher-timeframe trend.
When all three agree you have a genuine setup. When only the candle is present you have a coin flip with a nice name. Risk is still sized from the stop, not from the pattern's promise.
Questions
Do candlestick patterns actually work?
Not in isolation. Raw patterns show little edge in backtests. They work when they confirm existing context: the right pattern at a strong level, in the direction of the trend.
What does a doji candle mean?
The open and close are nearly equal. It signals indecision between buyers and sellers and can warn that momentum is stalling after a strong move.
70–80% of retail investor accounts lose money trading CFDs. This page is education, not advice. All trade examples are constructed composites.
