Technical Analysis·Candlestick Patterns
Anatomy of a Candlestick
The Story Behind Every Candle
A single candlestick encodes a complete battle between buyers and sellers over a specific time period. Learning to read candles is the first step toward reading the market's intentions. Each candle tells you the open, high, low, and close — four critical data points — at a glance. Japanese rice traders invented candlestick charting in the 18th century, and the technique remains the dominant charting method worldwide more than 250 years later.
Anatomy of a candlestick
Every candlestick tells a micro-story of an entire trading session condensed into a single visual element. Whether you are looking at a 1-minute candle on an intraday scalping chart or a monthly candle on a long-term position chart, the anatomy is identical. The body, wicks, and relationship between open and close reveal who won the battle during that period and how decisively they won.
Definition
Candlestick Body
The thick rectangular portion of a candle. Represents the range between the open and close prices. A green (or white) body means the close was above the open — buyers won. A red (or black) body means the close was below the open — sellers won. The body size directly reflects the conviction of the winning side.
Definition
Wick (Shadow)
The thin lines above and below the body. The upper wick shows the highest price reached during the period; the lower wick shows the lowest. Long wicks reveal where price was rejected — a story of failed breakouts. The wick-to-body ratio is one of the most informative aspects of candlestick analysis.
Definition
Open Price
The first price traded when the candle's time period begins. On a daily chart, this is the price at the session open. The open sets the starting point for the battle between buyers and sellers during that period.
Definition
Close Price
The last price traded when the candle's time period ends. The close is considered the most important single price because it reflects the final verdict of all buyers and sellers during that period. Institutional traders often focus most heavily on closing prices.
What Candle Size Tells You
The relative size of the body and wicks communicates conviction. A large bullish body with tiny wicks shows strong buying pressure throughout the period. A small body with large wicks signals indecision — neither side could hold its gains. Professional traders learn to read candle size relative to recent candles, not in absolute terms. A 50-pip candle on EUR/USD might be average on one day but enormous during a low-volatility Asian session.
| Candle Shape | Meaning | Implication |
|---|---|---|
| Large body, tiny wicks | Strong directional conviction | Trend likely to continue |
| Small body, large wicks | Indecision, battle between buyers and sellers | Potential reversal or pause |
| No lower wick (marubozu bull) | Buyers dominated entirely — opened at low, closed at high | Strong bullish momentum |
| No upper wick (marubozu bear) | Sellers dominated entirely — opened at high, closed at low | Strong bearish momentum |
| Very small body (spinning top) | Neither side won — pure indecision | Caution: direction unclear |
| Long upper wick, small body at bottom | Buyers tried but sellers rejected the advance | Bearish pressure building |
| Long lower wick, small body at top | Sellers tried but buyers absorbed the selling | Bullish pressure building |
Timeframe and Candle Significance
The timeframe of a candle dramatically affects its significance. A doji on a 5-minute chart might mean nothing — noise from a single institutional order. The same doji on the weekly chart represents an entire week of indecision across all global sessions. As a rule, always weight higher-timeframe candles more heavily in your analysis.
| Timeframe | One Candle Represents | Pattern Significance |
|---|---|---|
| M1 / M5 | 1-5 minutes of price action | Low — mostly noise, useful only for scalpers |
| M15 / M30 | 15-30 minutes of price action | Low-Medium — intraday signals only |
| H1 | One hour of trading | Medium — useful for day trading setups |
| H4 | Four hours of trading | Medium-High — the workhorse timeframe for swing traders |
| Daily | An entire trading day | High — institutional-grade signals |
| Weekly | An entire trading week | Very High — major trend and reversal signals |
| Monthly | An entire trading month | Highest — used for long-term positioning |
Context is everything
A candle's meaning depends heavily on where it appears. The same doji candle at a major resistance level signals a potential reversal. The same doji in the middle of a ranging market means almost nothing. Always ask: where is this candle relative to key levels, and what is the prevailing trend?
Real-world example: USD/JPY daily chart, October 2022
In October 2022, USD/JPY reached 151.94 — a 32-year high. The daily candle that day printed a massive upper wick, closing far below the high. This single candle communicated a powerful message: buyers pushed to an extreme but sellers (including Bank of Japan intervention) violently rejected the advance. The pair fell over 700 pips in the following weeks. That one candle was all the warning a skilled trader needed.
Knowledge check
A candle has a small body but very long wicks both above and below. What does this most likely indicate?
Color Conventions Across Platforms
Different charting platforms use different color schemes. On most modern platforms, bullish candles are green and bearish candles are red. Traditional Japanese charts used white (hollow) for bullish and black (filled) for bearish. Some traders customize their charts with blue/orange or other color pairs. The colors are cosmetic — the information conveyed by the body and wicks is what matters.
Body vs wick: which matters more?
Both carry information, but the body is generally more important because it represents where price committed (open and close). Wicks show where price was rejected — useful for identifying key levels. However, a candle with a large wick and small body at a critical support/resistance zone can be more meaningful than a large-bodied candle in the middle of nowhere.
Knowledge check
A weekly candle on GBP/USD closes as a large green marubozu (no upper or lower wicks). What does this indicate?