Piercing Line Candlestick Pattern

A piercing line is a two-candle bullish reversal pattern that forms after a decline. A red candle is followed by a green one that opens below the red candle's low, then rallies to close above the midpoint of the red body but below its open. That halfway mark is the whole test: buyers took back more than half of the previous session's loss.

Signal

Bullish reversal

Candles

2

Look for it

After a downtrend

In Alphacent

Pro library

The two-candle checklist

Check three things in order. If any one fails, it is not a piercing line.

1. A real red candle in a downtrend. The first candle is bearish with a decent body, and it prints after a run of lower highs and lower lows.
2. An open below the first candle's low. The second candle starts beneath the entire range of the first. Some textbooks accept any open below the prior close; the stricter version is cleaner.
3. A green close above the midpoint of the red body, but below its open. Take the red candle's open and close, find the halfway price, and make sure the green candle finishes above it without reaching the red open.

Using the numbers in the diagram: the red candle opens at 72 and closes at 42, so its midpoint is (72 + 42) / 2 = 57. The green candle opens at 35, under the red low of 40, and closes at 64. That is 7 points above the midpoint and 8 short of the red open. It qualifies.

Why the midpoint is the line that matters

The halfway mark separates a counterattack from a bounce. Close below it and buyers recovered less than half of the prior loss, so the pattern gets a different name and a weaker reputation.

Traditional candlestick texts describe three of these near misses: the on-neck line (green close near the red candle's low), the in-neck line (close just inside the red body) and the thrusting line (close inside the body but under the midpoint). All three are usually read as the downtrend pausing rather than reversing.

Measure from the body, not the wicks. The midpoint sits halfway between the red candle's open and close. Using the high and low instead moves the line, and when the lower wick is long it drops low enough to pass a close that missed the real midpoint.

Piercing line vs bullish engulfing and other lookalikes

Both patterns start with a red candle and a lower open. What separates them is how far the rally gets.

• A piercing line closes above the red body's midpoint but below its open. The green body covers part of the red one.
• A bullish engulfing closes above the red candle's open, so the green body swallows the whole red body.

Engulfing is generally read as the stronger of the two, because buyers erased the whole previous session. A piercing line says they got most of the way and stalled, so the next candle matters more.

The mirror image at the top of an uptrend is the dark cloud cover: a green candle, then a red one that opens above the green candle's high and closes below the midpoint of its body. Beginners also mix up a piercing line with a single hammer, since both show a sharp recovery from a low. The hammer tells its story with one long lower wick. The piercing line needs two candles and is judged on bodies.

What buyers and sellers just did

Read it as a short fight. The red candle ends near its low, so sellers owned that session. The next open comes in lower still, below everything the red candle traded.

Then the selling dries up. Buyers absorb it, and price climbs back through the red close and past the halfway point of the red body. Anyone who sold in the lower half of that red candle is now underwater, and some of them will buy back to get out.

What it does not show is buyers in charge. They reclaimed more than half the ground, not all of it, and a small upper wick on the green candle often means some selling came back near the high.

When it tends to hold, and when it falls apart

No candle pattern predicts anything on its own. This one earns more trust when it forms after a sustained downtrend rather than one red day, when the green candle lands on a higher-timeframe level such as daily support that has held before, and when volume on the green candle is clearly higher than on the red one.

It tends to fail in three situations:

• the close only scrapes the midpoint, or misses it;
• the next candle gives back the green candle's gains straight away;
• price is stuck in a tight range, where a low open is just noise inside the box.

Confirmation means the next candle closing above the green candle's close. Waiting costs you a slightly worse entry. Skipping it means trading a pattern that, by definition, left buyers short of a full reversal.

A worked example on a $2,000 paper account

Hypothetical numbers. An ETF on the daily chart has fallen for two weeks.

• Day 1: red candle, open $106.00, close $102.00, low $101.60. Body midpoint: $104.00.
• Day 2: opens at $101.00 (below the $101.60 low), dips to $100.80, closes at $105.00. That is above $104.00 and below $106.00, so it qualifies.
• Day 3: closes at $105.50, above Day 2's close. That is your confirmation.

You enter at $105.50 and place the stop-loss at $100.50, just under the pattern's low of $100.80. The distance is $5.00 per unit.

Risking 1% of $2,000 means $20 on the trade. $20 divided by $5.00 is 4 units, a position worth 4 x $105.50 = $422. If the stop is hit, you lose 4 x $5.00 = $20, plus any slippage. Position sizing this way caps what one failed reversal can cost.

For a target, look at the nearest resistance above, say a prior swing high at $115.00. That is $9.50 of potential gain against $5.00 of risk, a risk-reward ratio of 1.9 to 1. If the nearest resistance sat at $107.00 instead, you would be risking $5.00 to make $1.50. Skip that one.

Mistakes that turn it into noise

• Calling it without a downtrend. A red candle followed by a green one inside a sideways range is two candles, not a reversal.
• Taking the midpoint on trust. Do the arithmetic. A close that looks above halfway often is not.
• Buying the green close with no plan for failure. If the next candle erases the gain, the pattern is void. Know where your stop goes before you enter.
• Reading an engulfing as a piercing line. If the green close is above the red open, it is a bullish engulfing.

A useful drill: open a 1D chart in Alphacent's simulator, scroll back through a downtrend, and mark every spot where a green candle opens under a red one. Then check each close against the red midpoint. Expect a lot of them to come up short.

Worked examples on this page use a hypothetical paper account and are for learning only, not advice. In Alphacent, free trades use a fixed $1,000 size; choosing your size, stop-loss and take-profit orders, and leverage are Pro features.

Questions people ask