Definition: what a pin bar is
A pin bar is a single candlestick characterized by an uneven price move within one time period. In plain terms, it shows that price pushed strongly in one direction (creating a long wick) but then closed back toward the opposite side, resulting in a small real body near one end of the candle.
Stable mechanics (non-changing idea):
- Candle parts: the wick is the distance between the high/low and the open/close. The body is the distance between open and close.
- Visual requirement: one wick is clearly longer than the other, and the body is relatively small.
- Context requirement (important but not always consistent): many traders look for the pin bar to occur near a prior swing area (recent highs/lows) or after a directional move. This is a condition you must define yourself when analyzing examples.
How a worked example works
Because “pin bar” involves measurement and judgment, a worked example is about being explicit: you must state exactly what you treat as “long wick,” where the pin bar appears relative to recent movement, and how you calculate sizes.
Below is a numerical scenario you can reproduce on any chart data with the same candle values.
Assumptions for the example (state these before evaluating):
- Timeframe: one candlestick is one period (e.g., 1 hour). The period length does not change the definition, but it changes the observed shape.
- No real-time data: we use made-up candle prices to illustrate mechanics.
- Threshold rule you choose: define a “long wick” as the longer wick being at least 2× the body size. This is not a universal law; it is a rule for this worked example.
- Location rule you choose: treat the candle as a “pin bar” candidate only if its body is near the top for a rejection from below, or near the bottom for a rejection from above. In this example, we use one direction.
Worked numerical example (fully stated assumptions)
Scenario candle
Assume the market prints this single candle:
- Open = 1.1000
- Close = 1.1010
- High = 1.1020
- Low = 1.0970
Compute body and wicks using the same definitions each time:
- Body size = |Close − Open| = |1.1010 − 1.1000| = 0.0010
- Upper wick = High − max(Open, Close) = 1.1020 − 1.1010 = 0.0010
- Lower wick = min(Open, Close) − Low = 1.1000 − 1.0970 = 0.0030
Check the “long wick” rule (from assumptions):
- Long wick is 0.0030 (lower wick). Compare to body 0.0010.
- Ratio = 0.0030 / 0.0010 = 3.0, which is ≥ 2.0, so it passes the long-wick test.
Check the “body near one end” rule (from assumptions):
- The body is near the top because Open and Close (1.1000–1.1010) are close to the High-side levels compared with the extreme Low. That matches a rejection-style shape.
So under the stated rules, this candle qualifies as a pin bar candidate: small body, one wick (lower) much longer than the body, and a close back toward the upper side.
What “worked” also means: verifying context without predicting
Now add one more assumption you must define: context.
- Suppose the prior two candles (before this one) show a move down to 1.0985 and 1.0995, making 1.0995 a local swing area.
- In the pin bar scenario, the Low (1.0970) breaks below that local area but the Close returns upward toward 1.1000–1.1010.
A reader can verify this visually by checking whether the pin bar’s extreme wick went beyond a recent swing region and whether the close returned toward the opposite side. This addresses “how it works” as a measurement concept, not as a forecast.
Limitations and risks (material failure modes)
Pin bars can be misread, and even when the shape matches a rule, outcomes can vary for reasons unrelated to the candle pattern itself.
Material limitations to consider:
- Threshold ambiguity: different people use different definitions (e. g. , body-to-wick ratios, “near” a swing point). A candle might pass one rule and fail another. - Context sensitivity: a pin bar shape in the middle of a range can mean something different than the same shape at a clear swing extreme.