What Is a Candlestick Wick in Forex?
A candlestick wick is the thin line that extends above or below the body of a candlestick, marking the highest and lowest prices traded during the candle’s session. Wicks are sometimes called shadows or tails. The three terms are interchangeable. Together with the body of the candle, the wicks complete the visual record of where price travelled within a given period. For traders reading price action, wicks often carry as much information as the body itself, because they show the levels where price was tested and rejected. This article explains what a wick represents, how upper and lower wicks differ in meaning, what wick length signals, and how traders use wick information when reading charts.
Anatomy of a Wick
A standard candlestick has four components: the open, the close, the high, and the low. The body of the candle is drawn between the open and the close. The wicks are drawn from the edges of the body to the high and the low. The upper wick extends from the top of the body to the high of the session. The lower wick extends from the bottom of the body to the low of the session.
If the candle closes higher than it opened (a bullish candle), the top of the body is the close and the bottom is the open. The upper wick extends from the close to the high, and the lower wick extends from the open to the low. If the candle closes lower than it opened (a bearish candle), the top of the body is the open and the bottom is the close, with the wicks extending accordingly.
A candle does not need to have wicks on both sides. A marubozu has no wicks at all. A hammer has a long lower wick and almost no upper wick. A shooting star has a long upper wick and almost no lower wick. A doji has wicks but no meaningful body, with open and close at essentially the same level.
What a Wick Represents
A wick represents the portion of the session where price travelled beyond the open-to-close range but did not stay there. In effect, every wick is a record of an unfilled attempt: a move in one direction that the market did not sustain by the time the candle closed.
An upper wick is the trace of an upward attempt that was sold off before the close. Price probed higher than the close ended up settling, but sellers absorbed the move and pulled price back. A lower wick is the mirror image: price probed lower than the close settled, but buyers absorbed the move and lifted price back up.
This is why wicks are often read as signs of rejection. A long upper wick at the top of a candle is taken as evidence that sellers stepped in at higher prices. A long lower wick at the bottom is taken as evidence that buyers stepped in at lower prices. The wick captures the rejection visually, even though the candle close itself may not be far from the open.
Reading Wick Length
The length of a wick relative to the candle’s body and to the surrounding candles is what gives the wick its informational weight.
A long upper wick combined with a small body near the bottom of the candle suggests strong rejection from above. This is the shape of a shooting star at the top of an uptrend or an inverted hammer at the bottom of a downtrend. A long lower wick with a small body near the top suggests strong rejection from below. This is the shape of a hammer at the bottom of a downtrend or a hanging man at the top of an uptrend.
Wicks of roughly equal length on both sides of a small body suggest indecision, which is the shape of a spinning top. Neither side managed to push price decisively away from the open by the close.
Very short or absent wicks suggest conviction. A candle with a long body and almost no wicks is a marubozu or a closing marubozu, indicating that the dominant side held control from open to close without significant counter-pressure.
| Wick Profile | Body | Implied Meaning |
|---|---|---|
| Long upper, small lower | Small near bottom | Rejection from above |
| Long lower, small upper | Small near top | Rejection from below |
| Long upper and lower, similar | Small | Indecision |
| Short or absent on both ends | Large, full | Strong directional conviction |
Wicks at Significant Chart Locations
The same wick pattern carries very different weight depending on where it appears. A long lower wick at a clearly defined horizontal support level, a rising trendline, or a major moving average is treated as a meaningful sign of buyer interest at that level. The same wick in open chart space, with no nearby reference point, is much less informative.
This is why price action traders pay attention to the intersection of wick patterns and known levels. Long wicks that pierce a level and then close back inside it are often read as failed breakouts, suggesting that the level is holding. Long wicks that close beyond a level are often read as confirmations that the level has broken, even if the close is only slightly past it.
Across multiple candles, repeated long wicks at the same approximate price can mark a zone of contested control. Several long lower wicks at the same horizontal level, even if the closes vary, suggest that buyers are repeatedly defending that price. The same logic applies to upper wicks at a resistance area.
How Traders Use Wick Information
Wicks rarely produce stand-alone trade signals. They are more commonly used as an input within a wider read of the chart. The most common applications are confirming the strength or weakness of a candlestick pattern, identifying where stop losses might be placed, and gauging how strongly a level is being defended.
Stop placement is one practical use. Because wicks mark the extremes of the session, stop losses are commonly placed a few pips beyond the relevant wick. For a long position taken after a pin bar with a long lower wick, the stop is typically placed a few pips below the tip of the wick. A move past that level invalidates the rejection that the candle represents.
Another use is reading conviction. A trend that produces consistently large bodies with small wicks is usually considered stronger than a trend that produces smaller bodies with long wicks against the direction. The wicks reveal counter-pressure that the body alone may obscure.
Limitations
Wicks describe what happened inside a single session. They do not predict what comes next. A long lower wick on a daily candle, for example, says only that buyers defended a level on that particular day. Whether they will defend it again on the next day is a separate question.
A second limitation is that on very short timeframes, wicks can appear and disappear rapidly as price moves. A wick that looks long on a five-minute chart may be insignificant relative to the daily range. Without context for the candle’s volatility, wick length alone is hard to evaluate.
Wicks are most useful as one component of a broader read, combined with body size, candle pattern, location on the chart, and the prevailing trend.
Frequently Asked Questions
What is the difference between a wick and a shadow? There is no difference. Wick, shadow, and tail are interchangeable terms for the thin line extending above or below a candlestick body. Different traders and textbooks use different terms, but they describe the same thing.
What does a long wick on a candlestick indicate? A long wick indicates that price travelled beyond the close in that direction but was rejected before the candle ended. A long upper wick suggests rejection of higher prices; a long lower wick suggests rejection of lower prices.
Why are wicks important when reading charts? Wicks show where price was tested but did not hold. They reveal counter-pressure that the body of the candle alone may obscure, and they often mark the highs and lows that become future support and resistance levels.
What does it mean when a candle has no wicks? A candle with no wicks is a marubozu. It indicates that the dominant side controlled the entire session from open to close with no meaningful counter-pressure. A bullish marubozu reflects strong buying; a bearish marubozu reflects strong selling.
Can a candle have only one wick? Yes. Many candle patterns have a wick on only one side. A hammer typically has only a lower wick. A shooting star typically has only an upper wick. A closing marubozu has a wick only at the open end of the candle.
Where do stop losses go in relation to wicks? A common convention is to place a stop loss a few pips beyond the relevant wick. For a long trade after a candle with a long lower wick, the stop sits below the wick’s tip. A move past the wick typically invalidates the rejection that the candle represented.
Do wicks on lower timeframes mean the same thing as on higher timeframes? Wick anatomy is identical across timeframes, but the significance differs. A long wick on a daily chart reflects a full session’s worth of rejection. A long wick on a one-minute chart can be the product of a single brief order-flow imbalance and may not carry the same meaning.