The four numbers
A candle covers a fixed stretch of time — five minutes, a day, a week. Whatever happened inside that stretch, the candle records only four prices from it: where trading opened, the highest price reached, the lowest, and where it closed.
The thick part, the body, runs from open to close. The thin lines above and below, the wicks, run out to the high and the low. Colour tells you one thing only: whether the close was above the open.
What a wick actually means
A long wick is not decoration. It marks a price the market reached and then refused to hold. Somebody was willing to trade up there, or down there, and within that same stretch of time the price came back.
The body tells you where the argument ended. The wick tells you how far it travelled before it got there.
Body size is relative
A wide body means the period was one-sided — it opened near one end and closed near the other. A narrow body means it finished close to where it began, whatever it did in between.
But “wide” only means anything compared with the candles around it. A body that looks large on a quiet chart would be unremarkable on a busy one. Always read size against its own neighbourhood, never against a number you memorised.
Read it yourself
Three questions on one chart. Work them out before revealing the marks.
- Which candle has the widest body, and what does that say about the period it covers?
- Which candle has the longest lower wick?
- Find the candle that reached the highest price on the chart. Did it close anywhere near that price?
Show answers
1. The third candle. It opened near its low and closed near its high, so buyers held the upper hand from start to finish.
2. The sixth. It traded well below its open and finished back near the top of its own range — the drop was bought.
3. The tenth candle made the chart's highest print, and closed almost exactly where it opened. Reaching a price and holding it are different events, and a candle records both.
Terms used
- OHLC
- Open, high, low, close — the four prices a candle records.
- Body
- The thick part, running from the open to the close.
- Wick
- The thin line beyond the body, running out to the high or the low. Also called a shadow.
- Rejection
- Price reaching a level and failing to stay there within the same period.
- Timeframe
- The stretch of time one candle covers.