Most traders can name the parts of a candlestick — body, wick, open, close — within their first week of looking at charts. Far fewer can explain what a candle is actually recording: a compressed argument between buyers and sellers over a fixed period of time, with a clear winner and a measurable margin of victory. Once you read candles that way instead of as decoration, entire setups (order blocks, fair value gaps, liquidity sweeps) stop being memorized shapes and start being logical conclusions.
The four prices, and what each one means
- Open — the price agreed upon the instant this candle's timeframe began. Not particularly meaningful alone, but the anchor everything else is measured against.
- Close — the price agreed upon at the instant the timeframe ended. On most charts, this is the single most important price on the candle — it's what the market decided the asset was worth after a full period of negotiation.
- High — the maximum price reached during the period. Represents the furthest buyers were able to push price before losing control.
- Low — the minimum price reached during the period. Represents the furthest sellers were able to push price before losing control.
Body vs. wick: two different stories
The body (the thick rectangle) shows the distance between open and close — where the candle ultimately settled. The wick (the thin lines above and below) shows price that was reached but not held — territory that was tested and then rejected.
This distinction is the entire basis of liquidity and sweep concepts used in Smart Money Concepts and ICT methodology. A long wick isn't just "volatility" — it's a specific, readable event: price reached a level, found enough opposing orders to reverse, and closed back away from it. A candle with almost no wick and a large body tells a very different story: one side was in control from open to close with minimal contest.
Before you check any indicator, try to answer this out loud for the last closed candle on your chart: "Who won this candle, and by how much?" If you can't answer confidently, you're not ready to act on it yet — regardless of what a strategy says to do next.
Three questions every candle answers
1. Who was in control?
A bullish (typically green or white) candle closes above where it opened — buyers won the period. A bearish (typically red or black) candle closes below its open — sellers won. This alone tells you nothing about future direction; it only tells you who won the last round.
2. How decisively did they win?
Body size relative to the candle's full range (high to low) measures conviction. A candle that is almost all body — open near the low, close near the high, on a bullish candle — shows one-sided control. A candle with a small body and long wicks on both ends shows indecision: both sides pushed, neither held the extreme.
3. What was rejected?
The wicks tell you what price levels the market tried and abandoned. A long upper wick on an otherwise bullish candle is a meaningful warning sign even though the candle "won" — it shows sellers stepped in hard enough at the highs to erase most of the gain before the close.
Why this matters more than pattern names
Named patterns — doji, hammer, engulfing, shooting star — are simply common combinations of the three answers above. A "hammer" is just: small body, long lower wick, closing near the high — sellers tried to push down, failed, buyers reclaimed control by the close. Once you can derive the pattern from first principles, you stop needing to memorize a catalog of shapes, and you stop misapplying a pattern name to a candle that only superficially resembles it.
| Pattern name | What it actually is |
|---|---|
| Hammer | Long lower wick, small body near the high — rejection of lower prices |
| Shooting star | Long upper wick, small body near the low — rejection of higher prices |
| Doji | Open and close nearly equal — neither side won; pure indecision |
| Engulfing | One candle's full range exceeds and reverses the prior candle's range — a full control shift in one period |
KEY TAKEAWAYS
- A candle is a record of a contest between buyers and sellers over one fixed period — not a decoration.
- Body = where price settled. Wick = where price was tested and rejected.
- Ask "who won, by how much, and what was rejected" before applying any pattern name.
- Named patterns (hammer, engulfing, doji) are just common combinations of those three answers — derive them, don't memorize them.
- This reading skill is the direct foundation for order blocks, fair value gaps, and liquidity sweeps covered in the Structure tier.