13.9%To entry--Typical win48.9%Won
WDCLong
$166B capVol 7th percentileRSI 47Hardware & Electronics
Symmetrical triangle: trading either breakout direction
The swings get smaller, but the next move can go either way. Learn the entry, safety exit and target for both directions, then see what our research found about the market and the move before the triangle.
What is a symmetrical triangle pattern?
A symmetrical triangle forms when successive highs fall and successive lows rise. Imagine highs near $54, $52 and $51, with intervening lows near $44, $46 and $48. These illustrative prices show the range narrowing from both sides.
Connect the highs and lows with separate trend lines. The upper line slopes down and the lower line slopes up. The name describes their convergence.
A triangle can develop without a sharp preceding move. A small version immediately following a sharp rally or decline may instead be classified as a pennant. That earlier sharp move is called its flagpole.
Not every triangle is symmetrical. An ascending triangle has a roughly flat ceiling and rising lows. A descending triangle has a roughly flat floor and falling highs. This guide’s research focuses on symmetrical triangles; the other shapes have their own guides.
How to spot a symmetrical triangle
Use these features to check the shape:
- Successive highs fall.
- Successive lows rise.
- Separate turning points help define each boundary.
- The lines converge while there is still room between them.
Check the full consolidation rather than selecting a few convenient turning points. Volume describes activity during the range, while the tested trade begins at its specified price trigger.
Symmetrical triangle vs pennant vs the other triangles
Compare the boundaries and the move preceding the consolidation to distinguish these related patterns.
Symmetrical triangle
Bull pennant ↗
Ascending triangle ↗
Descending triangle ↗
Illustrative shapes. Compare the move before the pause and the direction of the two boundaries.
Is a symmetrical triangle bullish or bearish?
A symmetrical triangle supports two possible breakout plans. Above the upper boundary, a trader can buy and aim to sell higher: a long trade. Below the lower boundary, a trader can sell borrowed shares and aim to buy them back lower: a short trade. These are alternative directions, not two positions opened together.
The breakout idea is to wait until price leaves the narrowing range before taking a position in that direction. It gives you a specific price to act on and a nearby reference for when the plan has failed. It does not prove that buyers or sellers will keep pushing the price the same way.
Both plans need exits. Even after price crosses a boundary, it can return through the triangle and move against the position.
Entry, safety exit and target
Choose each step on the diagram to see the entry, safety exit and target. The expandable rules explain TradingPal’s historical simulation, with price examples for both directions.
Read the full entry, exit and target rules
Entry
The simulation uses an upward trigger above the upper boundary and a downward trigger below the lower boundary. The pattern must have been established on an earlier daily candle. The first eligible candle to reach the trigger can fill the order. If price gaps past it overnight, the simulation uses the worse opening price. For an illustrative triangle, imagine buying above the upper boundary at $50, or selling short below the lower boundary at $48. These are alternative trades; the diagram shows the relationships without these example prices.
Safety exit
The planned invalidation level sits beyond the last dip for a long trade or the last bounce for a short trade. The test closes the trade at the close of a later daily candle beyond that level. In the illustrative long trade, a $47 reference is 6% below the $50 entry. In the short trade, a $51 reference is 6.25% above the $48 entry. This distance is the original planned risk, or 1R. Price can overshoot it or gap past it, so the actual loss can exceed that plan.
Target and final exit
Measure the pattern’s height at its widest point and project that distance from the entry trigger in the direction of the trade. For a $6-high triangle, the illustrative long target is $56, 12% above the $50 entry. The short target is $42, a favorable 12.5% decline from $48. In both examples the target is twice the planned risk distance. These are price moves from entry, not account returns. This is the measured-move target. The bearish rule closes at the downside target. For an upward break, reaching the target activates a trailing exit based on the 10-day moving average, the average of the last ten daily closing prices. The trade ends on a later close below that average.
Common mistakes to avoid
- Draw both boundaries from separate turning points and use a consistent convention for nearby prices.
- Check whether price has already reached the intersection of the lines or broken out and returned. Those events change the setup available to trade.
- Recalculate risk and potential reward if the entry price changes. A later entry can leave less distance to the target and more distance to the safety exit.
- Write down the exit rule before entering. The historical result assumes that rule was followed, including exits that lost more than the planned risk.
Research
A pattern can look convincing and still disappoint as a trade. We tested two familiar trading ideas to see whether they actually helped. Here is what we found in those historical simulations.
Study 01
Does the market change a triangle breakout’s odds?
A triangle on one stock can look the same whether the wider market is rising or struggling. That missing context might matter to the trade. SPY tracks the S&P 500; its 200-day average smooths out the last 200 daily closing prices.
We compared 12,360 historical symmetrical-triangle trades, separating upward and downward trades and checking where SPY stood relative to its 200-day average before entry. Upward trades won more often with SPY above that reference: 62.1%, compared with 52.9% below it.
Downward trades told a different story. Their average profit was nearly twice as large with SPY below its average: $26.69 per trade for each $100 of planned risk, compared with $13.55 above it, including losses and before costs. The short-trade win rate did not double.
The takeaway is to look beyond the individual drawing: market context was associated with different results. These were different historical trades, not an experiment proving that the market caused the gap or that filtering trades would improve a portfolio.
Read the full study: Does the market change a triangle breakout’s odds? →Study 02
Does a flagpole make a triangle a better trade?
A sharp rise followed by a small triangle tells an appealing story: buyers pushed the price up, paused, and may be ready to push again. That preceding move is the flagpole.
We checked whether symmetrical triangles with a flagpole actually produced better trades than triangles without one. In the 9,238 upward trades, the group without a pole won 60.3% of the time; the group with a pole won 56.0%.
The group without a pole also earned more per unit of planned risk: about $63 per trade for each $100 of planned risk, compared with $50 with a pole, including losses and before costs. The downward comparison likewise showed no improvement from requiring a pole.
This does not prove that a flagpole hurts a trade. The groups differed, and the smaller gaps could reflect chance or other features. The useful lesson is narrower: this historical test did not justify rejecting a triangle simply because it lacked a sharp preceding move.
Read the full study: Does a flagpole make a triangle a better trade? →Historical results for the tested rules
The table summarizes simulated trades using the entry and exit rules above. Check the direction, sample size and measurement period before comparing rows. These results update when a new historical run is published.
Read win rate together with the size of the wins and losses. A strategy can win half its trades and still gain or lose overall. Average R and profit factor help explain which happened; the track-record metrics guide covers the calculation.
The published pattern group includes shapes that passed later confirmation checks. That can affect which historical trades enter the sample, even when the simulated fill uses prices available at the time. The backtesting methodology explains this limitation and the portfolio assumptions.
Win rate
48.9%
Avg return per trade
+2.6%
+0.25R in risk units
Backtested trades
1,753
Profit factor
1.48
gross positive R ÷ absolute gross negative R
Historical results of the simulated strategy described above (2006-09-08 – 2026-09-09), refreshed nightly — not a prediction. How we test →
Winning and losing examples
The examples below are selected completed trades from the historical simulation. Compare the entry and exit in each, including the losing trades. Opening a symbol takes you to its current chart.
Selected for learning, with a mix of wins and losses where available. Closed in the 90 days ending Sep 11, 2026. This selection is not a win-rate sample.
AEOAmerican Eagle Outfitters
Losing trade · −14.4%
Opened Sep 4, 2026
Closed Sep 10, 2026
Open AEO’s live chart →
AFRMAffirm
Winning trade · +10.2%
Opened Aug 31, 2026
Closed Sep 10, 2026
Open AFRM’s live chart →
ASOAcademy Sports and Outdoors
Losing trade · −9.8%
Opened Aug 17, 2026
Closed Sep 10, 2026
Open ASO’s live chart →
CEGConstellation Energy
Winning trade · +2.9%
Opened Aug 6, 2026
Closed Sep 10, 2026
Open CEG’s live chart →
BBWIBath & Body Works
Losing trade · −17.5%
Opened Jun 18, 2026
Closed Sep 10, 2026
Open BBWI’s live chart →
ELSEquity Lifestyle Properties
Winning trade · +5.1%
Opened Aug 11, 2026
Closed Sep 10, 2026
Open ELS’s live chart →
Stocks with a symmetrical triangle pattern right now
Our screener re-draws these lines on 2,600+ symbols every night. The current matches appear below.
80 fresh symmetrical triangles formed in the last 45 days across our growing universe of 2,600+ scanned symbols (90 charts tracked for this pattern in total). Scan updated Sep 11, 2026.
Live · from the latest scan on Sep 11, 2026
80 structures found. See example
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See the full offeringSymmetrical triangle pattern FAQ
Is a symmetrical triangle bullish or bearish?
It can break either way. The tested entry begins when price reaches the upward or downward trigger beyond the corresponding boundary.
What is the target for a symmetrical triangle?
Project its widest height from the entry trigger in the breakout direction. Bearish trades take that target; bullish trades use the moving-average exit after reaching it.
How does a symmetrical triangle differ from a pennant?
A pennant is a short pause after a sharp move. A symmetrical triangle can form without that move and may cover a longer consolidation.
How long does a symmetrical triangle take to form?
It needs distinct highs and lows to define its converging boundaries. On daily charts these can develop over weeks or months.
What confirms a symmetrical triangle breakout?
TradingPal uses a trigger beyond the relevant boundary after the pattern could be established on an earlier daily candle. An overnight gap uses the worse opening price in the simulation.
Keep learning
Ascending triangle
An ascending triangle combines repeated highs near one price with rising lows.
Read the guide →
Descending triangle
A descending triangle combines repeated lows near one price with falling highs.
Read the guide →
Bullish pennant
A bullish pennant forms when a sharp rally pauses in a small, narrowing range.
Read the guide →
Educational content, not investment advice. Backtest statistics are historical results of a simulated strategy, refreshed nightly — they describe the past, not the next trade.