Pin bar candlestick pattern: measure the wick and body
A pin bar describes a candle with a small body near one end of its range and a dominant shadow at the other end. A lower-tail shape overlaps hammer geometry; an upper-tail shape overlaps shooting-star geometry. Trend context and later confirmation are separate conditions. The wick records an excursion away from the body, not the identity or intentions of the traders involved.
Key Takeaways
- Specify both the dominant wick and the small opposite wick; a wick-to-body ratio alone can accept near-zero-body candles.
- A lower-tail candle after a decline and the same shape after an advance have different reversal interpretations.
- A later close beyond the pattern extreme is one confirmation choice, not a guarantee.
- Neither daily/four-hour charts nor an RSI or volume filter has a demonstrated universal advantage here.
Define one repeatable pin-bar rule
Use ordinary OHLC candles. Body is the absolute open-to-close difference; upper shadow is high minus the larger of open and close; lower shadow is the smaller of open and close minus low. The thresholds below are an illustrative specification, not a universal pin-bar standard.
| Measurement | Requirement |
|---|---|
| Range | High minus low greater than zero |
| Body | At least one minimum price tick and at most 25% of the range |
| Lower shadow | At least twice the body |
| Upper shadow | At most 10% of the range |
- Exclude exact doji before using a wick-to-body ratio, or classify it separately under a stated doji tolerance.
- A large ratio caused by a nearly zero body is not evidence of a stronger forecast.
- A candle with substantial shadows on both sides fails the short-opposite-shadow rule even if one wick is twice the body.
A worked shape and a near miss
Assume a minimum tick of 0.1. A hypothetical candle with open 100, high 101.2, low 97 and close 101 has body 1, lower shadow 3, upper shadow 0.2 and range 4.2. The body is 23.81% of the range and the upper shadow is 4.76%, so it passes all four tests. The prices are invented for measurement, not a historical trade.
- Keep open 100, low 97 and close 101, but raise high to 102. The upper shadow becomes 1 of a range of 5, or 20%; the candle fails the 10% opposite-shadow limit.
- A mirrored upper-tail example is open 101, high 104, low 99.8 and close 100. It has body 1, upper shadow 3 and lower shadow 0.2.
- The same range can occur on different intervals. Record the symbol, exchange, session and timeframe instead of assigning a universal meaning to the chart appearance.
Choose context before watching the next candle
After a decline, the lower-tail shape can be studied as a hammer-like bullish reversal candidate. After an advance, comparable geometry can be studied as a hanging-man candidate. An upper-tail shape after an advance resembles a shooting star; after a decline, compare the inverted hammer. Names overlap, but detectors can use different thresholds.
- For an illustrative context test, classify the three preceding completed closes as rising, falling or neither. This is a chosen short-horizon filter, not proof of the broader trend.
- If testing a support or resistance level, define it before the candidate forms. Drawing a level around a successful example after the move creates hindsight.
- A wick cannot show every attempt to cross a level or identify institutional participation from OHLC alone.
Record confirmation, expiry and failure separately
For the lower-tail example, one test waits for the very next close above 101.2 without an intervening trade below 97. A high above 101.2 with a close below it does not confirm. If the next bar fails either test, expire the setup. A subsequent break below 97 can invalidate an already confirmed setup; confirmation does not prevent that loss.
- Keep the candidate marker at its close and any confirmation marker on the later bar. Waiting adds delay and can change the available entry.
- Specify order timing, stop buffer, target or time exit, size, fees and slippage before measuring results. Stops can fill beyond their trigger.
- Compare optional RSI and volume filters against the original rule on the same dates, including failures and expired candidates.
- Retain a separate candidate log when exporting trades; the trade list omits shapes that never produced entries.
This page is for informational purposes only and does not constitute investment advice. Trading stocks, forex, and crypto carries substantial risk of loss. Past performance does not guarantee future results. Always consult a qualified financial advisor before making trading decisions.