Thrusting candlestick pattern: rules, examples and real results

The thrusting line sits on the border between two opposite ideas. Its first candle is a long black (red) day in a decline. Its second opens below that day's low, then thrusts up into the black body, closing well inside it but short of the halfway mark. Get a little further, past the midpoint, and the same two candles become a piercing line, which is read as bullish. Stop a little shorter and they become an In-neck candlestick pattern: a bearish continuation line line, read as bearish.

Traditional candlestick analysis files the thrusting line with the bearish continuation patterns, but as the least bearish of them, and with reservations. The TA-Lib source code even carries Nison's caveat that the pattern could turn bullish "when coming in an uptrend or occurring twice within several days". It is a pattern whose own literature hedges.

So the useful question is what it actually did. This page lays out the shape, TA-Lib's two-sided boundary, the psychology, a UnitedHealth case that fell hard and a Boeing case that rallied, and the results from 214 thrusting lines on 58 large US stocks and ETFs, which did not line up neatly with the bearish label.

The shape of a thrusting line

1. Long black candle. The decline extends with a session clearly larger than the recent norm.
2. Lower open. The second session opens beneath the black candle's low, so the market starts the day at a new low for the move.
3. A real thrust. Buyers push the second candle back into the black body. This is the difference from the neck lines: the white candle recovers a visible slice of the previous day's loss.
4. Stopped below halfway. The white candle's close stays at or below the midpoint of the black body.

Its Japanese name is commonly given as sashikomi, a word associated with thrusting or inserting. The image is a rally that pushes into the black candle without breaking it.

The exact rules Finabase uses

Finabase's Thrusting study and scanner use TA-Lib's CDLTHRUSTING:

The lower bound exists only to keep thrusting and in-neck apart. TA-Lib's in-neck band runs from the black close up to that same 5% allowance, and the thrusting band starts just above it. So for a black candle that closed at $100 with a $6 body, on a stock averaging $3 a day, in-neck covers closes from $100.00 to $100.15 and thrusting covers everything above $100.15 up to $103.00. A close above $103.00 is outside both: that is piercing territory, a separate bullish function.

Two practical consequences:

The thrusting window is wide. Unlike the in-neck and on-neck bands, which are a few cents across, this one can span several dollars. That is why TA-Lib finds thrusting lines about seven times as often as in-necks in our data, 214 against 31.

Nothing about the trend is checked. The source comment explicitly says the function ignores trend, and it does not count repeats either. A thrusting line in a rally, which Nison suggests may even be bullish, still scores −100.

What the candles say about buyers and sellers

The gap-down open says sellers came back overnight. Then the session turns: buyers lift price not just to the old low, as in the On-neck candlestick pattern: when the old low becomes a ceiling, or to the old close, as in the in-neck, but well into the range where yesterday's sellers were active. That is real buying.

The bearish interpretation focuses on the midpoint. Buyers could not reclaim even half of yesterday's loss, so sellers still hold the larger share of the ground. The bullish interpretation focuses on the thrust. A market that gaps down and still closes deep in the prior body is showing demand. Which reading wins depends on what follows, which is why the pattern's reputation is mixed even among people who use it.

Confirmation in both directions

Because a thrusting line can resolve either way, it helps to define both outcomes in advance:

• Bearish follow-through: a close below the white candle's low. This is the confirmation rule in our test.
• Bullish failure of the pattern: a close above the black body's midpoint, which turns the picture into something closer to a piercing line.
• A second thrust within a few sessions, which Nison's caveat treats as a possible sign of a bottom rather than continuation.
• Momentum context: an Relative Strength Index (RSI): how to read and use it deep below 30 argues the decline is stretched; a reading drifting lower from 50 argues it has room.

Two real thrusting lines

UnitedHealth, April 30, 2025. UNH had collapsed after its April 17 earnings report and was down 29.5% over ten sessions. On April 29 it fell from $421.19 to $409.23. On April 30 it opened at $409.03, seven cents below the previous low, and closed at $411.44, recovering about 18% of the black body. The next session closed at $400.68, below the white candle's $401.00 low, so the pattern was confirmed. Ten sessions later UNH was 25.1% lower, most of that on May 13, when the company replaced its chief executive and suspended its financial outlook.

The chart also shows a second thrusting line on April 22, six sessions earlier. Under Nison's caveat, two thrusts within several days could have hinted at a bottom. Here it did not. Neither candle could have priced in the news that came next.

Boeing, April 7, 2025. BA had fallen 23.2% in ten sessions during the tariff sell-off. On April 4 it dropped from $143.30 to $136.59. On April 7 it opened at $132.05, below the prior $132.79 low, and closed at $138.86, about a third of the way into the black body. The pattern was never confirmed. On April 9, when most new tariffs were paused, BA closed at $160.82, and ten sessions after the thrusting line it was 17.0% higher. A deep thrust into a huge black body, on the day of a panic low, is exactly the situation in which the bullish reading can win.

What the data says

We ran CDLTHRUSTING on daily bars for 60 large US stocks and ETFs from October 30, 2024 to October 29, 2026. It fired 214 times on 58 of the 60 symbols, and 203 cases had ten sessions of later data. A bearish pattern is a hit when price is lower, so the baseline is the 46.7% of all days that were lower five sessions later.

A slight bearish lean that does not last. Over five sessions, thrusting lines were lower 52.2% of the time, 5.5 points above the base rate, and the average return was −0.49%. By ten sessions the average had flipped to +0.80%, above the baseline's +0.66%. Whatever bearish information the pattern carried had faded within two weeks.

The textbook setting was a coin flip. Inside an existing decline, where the pattern is supposed to signal continuation, 50.4% were lower after five sessions. The pattern did a little better after a rally, 55.6% lower, which is the opposite of Nison's caveat that a thrusting line in an uptrend may be bullish.

Confirmation did not help. The 30 thrusting lines followed by a close below the white candle's low were lower five sessions later only half the time, with an average gain of 0.85% from the confirming close.

Thrusting versus the neighbors on its ladder

An educational outline with two exits

Because the thrusting line can resolve either way, an outline for it is mostly about defining both outcomes before acting. It is not a recommendation.

1. Mark three levels: the white candle's low, the black body's midpoint, and the black candle's open.
2. Bearish case: a close below the white candle's low. The invalidation is a close above the midpoint.
3. Bullish case: a close above the midpoint, which converts the picture toward a piercing line. The invalidation is a close back under the white candle's low.
4. Size from whichever distance applies and accept that, on our data, neither case has a measured edge from the pattern alone.

How Finabase shows thrusting lines

• Chart markers. The Thrusting study (the UNH link at the top of this page) marks each white candle where CDLTHRUSTING returned −100.
• Scanner. The candlestick scanner sorts detections by the sign of TA-Lib's output. Thrusting lines are always −100, so they always appear on the Bearish list, even after a rally where Nison's own caveat points the other way.
• Signals tab gauge. The candlestick gauge on a symbol's Signals tab lets each of 61 patterns vote with the sign of its most recent non-zero reading in the last 8 bars. A thrusting line in that window is a Sell vote. The score is (buy − sell) ÷ (buy + sell + the smaller of the neutral count and the larger side); −0.2 and below reads Sell, under −0.6 Strong Sell.

Frequently asked questions

Is the thrusting pattern bullish or bearish?

It is traditionally classed as a weak bearish continuation pattern. Its own literature notes it can act bullish, and in our two-year test it showed no reliable direction.

What separates a thrusting line from a piercing line?

The black body's midpoint. A white close at or below the midpoint is thrusting; above it, the pattern is a piercing line, which is read as bullish.

How is thrusting different from in-neck?

Depth. The in-neck's close sits at or within a few cents above the black close. The thrusting close is clearly inside the black body, anywhere up to its midpoint.

Why does the Finabase scanner list thrusting lines as bearish after a rally?

TA-Lib's function always returns −100 and does not look at the prior trend, and the scanner sorts by that sign. Interpreting the context is left to you.

Summary

The thrusting line is a gap-down open followed by a rally that reaches into the prior black body but not past its middle, a pattern on the fault line between continuation and reversal. Its literature calls it weakly bearish with caveats, and our data reflected that ambiguity: a small bearish lean over five sessions that faded by ten, a coin-flip result inside declines, and no help from confirmation across 203 measured cases. The midpoint of the black body is the one level worth carrying away from the pattern.