// foundations.lesson

Anatomy of a candlestick

Bodies, wicks and what they reveal about the fight between buyers and sellers — plus the handful of single candles worth memorising.

6 min read Chart Foundations

// key takeaways

  • Body = open-to-close. Wick = the high and low extremes.
  • Long wicks signal rejection; long bodies signal conviction.
  • Context (where the candle prints) matters more than the candle itself.

// figure: anatomy of a candlestick

figure.svg
BULLBEARupper wickbodylower wick
A bullish and a bearish candle — body (open→close) and wicks (high/low).

The four prices

A candlestick packs four data points into one shape: the open (where the period started), the close (where it ended), the high and the low. The body is drawn between open and close; the wicks stretch to the high and low.

What the shape tells you

  • Long green body — strong buying, little selling pushback.
  • Long red body — strong selling.
  • Long lower wick (pin/hammer) — sellers pushed price down but buyers reclaimed it; potential rejection of lower prices.
  • Long upper wick — buyers pushed up but sellers slammed it back; potential rejection of higher prices.
  • Small body (doji) — indecision; open and close nearly equal.

Single candles worth knowing

The hammer (long lower wick at a low) and shooting star (long upper wick at a high) flag rejection. The engulfing candle — a body that fully covers the previous candle's body — signals a shift in control. None of these are signals on their own; they matter when they appear at a level or after an extended move.

// common mistakes

  • Trading a hammer in the middle of nowhere — location is everything.
  • Treating a single candle as a guaranteed reversal.
  • Ignoring the close: intrabar spikes lie, closes tell the truth.

Frequently asked

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// related lessons

Educational content only — not financial advice. Pattern statistics reference Thomas Bulkowski (thepatternsite.com) and published technical-analysis literature.