Symmetrical triangles are powerful chart patterns in technical analysis. Despite their neutral nature, research shows that symmetrical triangle trading can help traders achieve their projected price targets 66% of the time in bull markets.

Unlike the directionally biased ascending and descending triangle pattern, this neutrality demands more sophisticated validation techniques. Trading the symmetrical triangle pattern during periods of indecision, in fact, requires advanced trading strategies and adhering to tested trading practices.

As symmetrical triangle chart patterns are viewed as one of the more reliable types of triangles for trading breakouts, their overall characteristics encourage traders to progress in their trading journey.

This article provides specific strategies on:

The three main types of symmetrical triangle patterns
Identifying a symmetrical triangle as the pattern forms
Trading volume analysis to validate high-probability breakouts
Avoiding false breaks out of the triangle, known as traps
Entries, stop placement and target projections
How to trade the symmetrical triangle in different conditions

While no symmetrical triangle trading strategy or study guarantees success, the bilateral triangle patterns can provide context about market psychology and underlying order flow. Coupled with backtested results over hundreds of appearances, this makes all three types of triangles tradable across all forex pairs and timeframes.

The Three Types of Symmetrical Triangles

While the fundamental characteristics of symmetrical triangles are covered in our main Triangle Chart Pattern guide, understanding variations of symmetrical triangle patterns helps identify the most appropriate triangle strategy for each market context.

Before diving in, below is a general table of the three main symmetrical triangle types:

Symmetrical Triangle Variations (ThinkMarkets)

Main Types of Symmetrical Triangle Patterns

Let’s see each one of them individually.

Symmetrical Triangle Pattern

As noted in our short guide on triangles, a standard symmetrical triangle forms when price creates two converging trendlines with similar slopes—a descending resistance connecting lower highs and an ascending support connecting higher lows.

Key Characteristics of Symmetrical Triangles

Converging trendlines with nearly equal slopes
Forms within prior trend boundaries
Neutral bias (can break in either direction)
High predictability when properly identified
Best used for breakout trading setups

Bullish Symmetrical Triangle, Bearish Symmetrical Triangle (ThinkMarkets)

Bullish and Bearish Symmetrical Triangle Pattern

Symmetrical triangle formations indicate market indecision where neither buyers nor sellers have clear control. As the price narrows toward the apex of the triangle, pressure builds until an eventual symmetrical triangle pattern breakout, which typically resumes the prior trend direction.

Let’s explore what has happened, according to Bulkowski's research on stocks, when trading the symmetrical triangle pattern in bullish or bearish trends to form a better perspective.

Symmetrical Triangle Trading in Uptrends

Bullish symmetrical triangle patterns act as continuation patterns 59% of the time and 54% in bearish breakouts
A bullish continuation returns on average 31% per trade (they fail as bearish symmetrical triangle breakouts)
66% of bullish symmetrical triangles in uptrends reach 100% of the measured-move target
Trend typically reverses when the pattern reaches average return, initially returning to the breakout point
Failed patterns return 10% extra as counter trades, but occur only 9% of the time

Symmetrical Triangle Trading in Downtrends

Bearish symmetrical triangle patterns act as continuation patterns 47% of the time and 57% in bullish breakouts
A bullish reversal returns 24% per trade (they fail as bearish symmetrical triangle breakouts)
Trend typically reverses 9% below the breakout point once the gain is reached
Failed patterns return 14% extra as counter trades, but occur only 7% of the time

Here are the optimal trading conditions:

Best Symmetrical Triangle Trade (ThinkMarkets)

Optimal Conditions for Symmetrical Triangle Trading

A caveat is that sometimes symmetrical triangles reverse at the previous peak/trough, with failure rates depending on the distance between the breakout point and the peak/trough. This makes the prevailing trend, the height of the triangle, its width, and other contexts all the more important.

Running Triangle Pattern

The running triangle is a symmetrical triangle type originating from Elliott Wave patterns, labelled alphanumerically as an abcde correction. It shares structural similarities with the symmetrical triangle. Still, it has one critical distinction—its first directional zigzag (wave b) extends beyond prior trend extremes (false break) up to 38.2% (of wave a).

Key Characteristics of Running Triangles

Similar converging structure to symmetrical triangles
Breaks beyond the previous trend extreme, forming a false break
Neutral bias (can break in either direction; tilts directional)
Higher predictability when properly identified
Best used for breakout trading setups

Bullish Running Triangle, Bearish Running Triangle (ThinkMarkets)

Bullish and Bearish Running Triangle Pattern

Running triangle patterns typically form during established trends and signal continuation moves after a temporary period of consolidation. They are more valuable for identifying continuation points in strong trending markets where momentum is building rather than waning. The initial price movement above prior extremes is considered the first solid test of new highs/lows, exceeding wave a by approximately 38.2%, with the trading range suggesting a second test is impending.

Trading Running Triangles

Distinguished by point b ‘running’ beyond the prior high/low
In uptrends: A break beyond the previous high signals a stronger bullish momentum
In downtrends: A break below the previous low indicates accelerating bearish pressure
Provide slightly stronger continuation signals than standard symmetrical triangles

A caveat is that sometimes running triangles face resistance/support sooner as the previous peak/trough is just up to 38.2% away from wave a, hence closer also to the breakout point. Traders use the Fibonacci in inverse to measure the distance, as well as to confirm a peak/trough. But presumably, the shorter distance implies a higher rate of throwbacks/pullbacks due to resistance/support, suggesting worse performance. Still, there are no official studies of their performance.

Broadening Triangle (Expanding Triangle Pattern)

Unlike standard triangles that show decreasing volatility and narrow towards an apex, broadening triangles display increasing volatility with symmetrically diverging trendlines that expand beyond prior trend extremes. They resemble a megaphone pattern when in their standard triangle shape (they can form in ascending triangle patterns and in descending).

Key Characteristics of Broadening Triangles

Diverging (expanding) trendlines instead of converging
Price makes progressively higher highs and lower lows
Uncertain directional bias
Low predictability due to high volatility
Useful for mean reversion and internal formation trading

Broadening triangles mimic running triangles 2/5ths of the way to completion.

Bullish Running Triangle, Bearish Running Triangle (ThinkMarkets)

Bullish and Bearish Broadening Triangle Pattern

A symmetrical broadening triangle indicates heightened emotional trading and disagreement about fair value. According to Bulkowski, broadening tops and bottoms, as he calls them, can be reliable trading chart patterns.

Trading Broadening Triangles in Uptrends

Only 52% of bullish broadening triangle patterns that form reach their measured-move targets (compared to 66% for symmetrical triangles), achieving 31% average gain
Broadening triangles break downwards 72% of the time (on high trading volume), making them primarily reversal patterns with only a 4% failure rate
Average decline after a downward triangle breakout is 21% (significantly higher than most reversal patterns)
Wider patterns perform better, with height/width ratios above 0.75 producing average gains of 27% versus 16%

Trading Broadening Triangles in Downtrends

57% of bearish broadening triangles reach their measured-move targets, with an average return of 19% vs 28% in bullish reversals
Bearish broadening triangles break upward 56% of the time, functioning primarily as reversal patterns
Volatility typically decreases after the breakout compared to during formation
Failed patterns occur only 5% of the time, but offer reversals at a 19% return

Let’s look at the optimal conditions closely:

Best Symmetrical Triangle Trade (ThinkMarkets)

Optimal Trading Conditions for Broadening Triangles

Notably, 64% of broadening triangles witness throwbacks/pullbacks, offering traders a second opportunity to enter a trade. However, pullbacks and throwbacks can hurt performance in both trends. Interestingly, pullbacks occurring ahead of a triangle breakout provide early entry signals with a high trend breakout reliability (68% score). This, combined with low failure rates, make them valuable in triangle trading.

Contextual Analysis of Symmetrical Triangles

One of the most important aspects when it comes to learning to trade triangle patterns is the correct identification of the pattern.

Although each structure has a specific set of criteria that must be present in order to be classified as a triangle pattern, there are some general rules of thumb to validate them:

Minimum Touchpoints: Look for at least four touches total - two on each trendline
Equal Slopes: Both trendlines should converge/diverge at roughly the same angle
Final Zigzag Behaviour: The final zigzag often truncates before reaching the opposite trendline, completing the pattern
Optimal Completion: Symmetrical triangle pattern breakouts typically occur at 74-79% of the distance to the apex (and presumably running) triangles and 50% for broadening

However, as mentioned earlier, symmetrical triangles require heavier context-specific approaches than ascending/descending triangles due to their neutrality. One must understand how these three formations behave in different market conditions before putting Bulkowski’s numbers into action.

Timeframe Considerations

For intraday trading, trading triangles on 15-minute or 1-hour timeframes are common in anticipation of consolidation breakouts. However, these setups are ideal for short-term trades that are looking for quick entries and exits and who use tight risk controls. No studies cover short-term formations, which mandates caution.

Swing traders, on the other hand, focus on triangles forming on daily price charts, aiming to capture larger price moves that may take several days or weeks to play out. Bullkowski found the most optimal formation period to be 3-12 weeks for the most reliable triangle patterns.

Volatility Considerations

When volatility is high, symmetrical triangles can break out quickly, offering greater reward but also requiring wider stop-losses and adjusted position sizing to manage higher volatility risk. Typically, triangles forming pre-main-session (such as forming overnight then breaking out over the European session or forming late Europe into early US trading) tend to work better. Remember, Bulkowski found that triangle volumes receding during formation (e.g. Asia) and increasing during breakouts (e.g. Europe) can improve gains.

In contrast, false breakouts are naturally more common during low liquidity periods due to lower volumes and a lack of follow-through. In these conditions, it is wise to reduce trade size, wait for stronger confirmation, or avoid trading altogether.

By adapting a symmetrical triangle trading approach to specific market conditions rather than using a one-size-fits-all strategy, traders can improve their forex trading results and protect against common pitfalls that occur in challenging environments.

How to Spot Valid Breakouts in Symmetrical Triangles

While our guide covers the general volume behaviour in triangle formations, symmetrical triangles require special attention to volume signals due to their neutral bias.

Volume Pattern During Formation

During symmetrical triangle development, look for these key volume characteristics:

Progressive Volume Decrease - Volume typically contracts 78% of the time from the start of the pattern to its apex
Volume Shape - U-shaped volume patterns perform better, especially in bear market upward breakouts
Oscillating Volume Flow - Higher volumes often appear during tests of boundaries (bullish at the lower and bearish at the upper boundary of the pattern)
Pre-Breakout Compression - Final 3-5 candles before breakout usually show the lowest volume readings

This volume contraction confirms the consolidating nature of symmetrical triangles and signals a decisive move.

How to Confirm Genuine Breakouts

For reliable breakout confirmation, watch for (with study results in mind):

Decisive Price Action - Clean breakout candle closing beyond the triangle's trendline
Volume Expansion - Increase in trading volume above the 20-period average
Directional Alignment - Spike that matches the direction of the breakout

Breakouts with strong volume confirmation show a higher performance rate compared to low-volume breakouts.

Warning Signs: Volume Divergence

Volume divergence occurs when price and volume trends are different, often leading to:

Failed breakouts with price quickly returning inside the pattern
Whipsaw price action trapping traders
Lack of follow-through after the initial move

This volume-price mismatch serves as an early warning signal that institutional traders may not be supporting the apparent breakout direction, particularly in bullish breakouts. In some low-volume contexts, Bulkowski even found the counter-trade to be more sensible.

Reading Volume Before Breakouts

Experienced traders can often anticipate the likely breakout direction by paying attention to the following volume signals:

For potential bullish breakouts

Gradually increasing volume on upswings within the triangle
Higher volume at support tests compared to resistance tests
Higher volumes in bull market breakouts

Notice the volume behaviour in the EURUSD 1-hour chart in a bullish market breakout trading strategy, 11-18 April. A measured-move target (distance of waves a-b) nearly reached 100% at 88%. Interestingly, wave e truncated the move to the trendline support while also forming a smaller size symmetrical triangle – a rather rare occasion featuring the power of fractals in real time.

EURUSD Running Triangle Breakout, Bullish

EURUSD Bullish Running Triangle Breakout

For potential bearish breakouts

Gradually increasing volume on downswings within the triangle
Higher volume during resistance tests than support tests
Lighter volumes in bear market breakdowns

While volume analysis is not foolproof, incorporating it into a symmetrical triangle trading strategy can improve results over time. Symmetrical triangles show only 9% failure rates in bull market breakouts and 7% in breakdowns.

How to Avoid Fakeouts in Symmetrical Triangles

As with any chart pattern, one of the key hurdles traders face when trading triangle patterns is false breakouts. This refers to a scenario when price temporarily moves beyond the triangle boundary, only to quickly reverse and return within the pattern, trapping any traders who entered on the initial move. Bullkowski uses the 5% rule.

Common Characteristics of False Breakouts

Low volume during the breakout (not true for breakdowns)
Long wicks on breakout candles with small bodies
Breakout occurring during low-liquidity market sessions
Price stalls immediately after crossing the trendline
Lack of follow-through in subsequent price action

One of the easiest ways to reduce the risk of entering a false move is to wait for a candle to close firmly outside the triangle, rather than reacting to intra-bar price action.

Let’s take an example of a symmetrical triangle during an ongoing downtrend.

Price trended lower in EURUSD in the second part of March, encouraging traders to enter short positions (one would read abcde as labelled in red). Yet, price broke higher during the early European session on a running triangle variation, with a notable increase in upward volume as the bullish candle broke the descending trendline.

Note how two attempts for a lower price failed, with increased volume. More important, however, is the first attempt. The hourly candle reached the previous low and reverted higher, forming a bullish pin bar back inside the triangle. Traders who did not wait for candle close confirmation fell into this trap. But those who did, could have taken the 'counter'trade'.

The pattern, as identified by Bulkowski, acted as a bullish correction in a downtrend, with the correct labelling seen in white colour.

EURUSD Running Triangle Correction Breakout, From Bull to Bear (ThinkMarkets)

EURUSD Bullish Running Triangle Correction in Bearish Market

Other methods that can help avoid false breakouts are:

Time-Based Filters: Require price to remain outside the triangle for a minimum duration
Price Threshold Buffers: Enter only when the price exceeds the breakout point by a specific percentage
Volume Validation: Confirm breakouts with volume at least twice above the previous candle.

In the latter case, if price breaks out but volume remains weak, it may signal a lack of conviction. Consider a symmetrical triangle on a 1-hour chart where price briefly spikes above resistance on weak volume, only to reverse within minutes. A better way to trade this is to trade the new trend, which Bullkowski calls busted patterns.

Distinguishing between strong and weak breakouts can help traders build appropriate entry, exit, and risk management strategies.

How to Trade Symmetrical Triangles Step by Step

Given the correct utilisation of Bulkowski’s analysis, symmetrical triangle patterns can offer high-probability trading opportunities when approached systematically. This step-by-step guide will help identify, confirm, and trade these powerful consolidation patterns.

Step 1: Identify the Pattern

Begin by correctly identifying a valid symmetrical triangle:

Draw converging trendlines connecting a series of lower highs and higher lows
Verify at least 4 touchpoints (2 on each trendline) to confirm the pattern
The 5th touch often truncates (doesn't reach the trendline completely)
Check the slopes - both trendlines should have similar but opposite slopes

Step 2: Assess Market Context

Before trading, understand where the triangle forms:

Identify the prevailing trend before the triangle forms
Check the higher timeframe direction for alignment
Note whether the price is above/below the key moving averages

Remember that bullish breakouts in the direction of the prior trend have better results.

Step 3: Watch for Volume Contraction

Confirm the pattern's validity through volume behaviour:

Look for decreasing volume as the pattern develops
Monitor volume compression toward the apex
Verify that this volume contraction confirms consolidation

Step 4: Prepare for Breakout

Position yourself for the upcoming breakout:

Watch for price action at 73% distance to the apex
In bullish trends: Focus on potential breakouts above the upper trendline
In bearish trends: Look for potential breakdowns below the lower trendline
Identify potential entry zones in advance

Step 5: Confirm Breakout & Enter

Wait for decisive breakout confirmation:

Enter after a decisive candle close beyond the triangle boundary
Confirm with volume expansion
Verify breakout quality - breakout should exceed boundary by at least 5% of pattern height
Avoid chasing extended breakout moves

Step 6: Calculate Position Size

Size your position based on the triangle's volatility:

Measure the triangle height (vertical distance between the highest point and the lowest point)
Calculate risk based on stop placement (typically 1% of the account)
Adjust position size accordingly - wider stops require smaller positions

Step 7: Place Stop Loss

Protect your trade with appropriate stop loss placement:
Conservative approach: Place a stop just outside the opposite side of the pattern
Moderate approach: Position stop behind the most recent swing point

Note: Placing stops too close to the trendline increases the risk of being "stopped out" prematurely.

Step 8: Set Profit Targets

Project symmetrical triangle pattern target using pattern measurements:

Measure the triangle height at its widest point
Project this measurement from the breakout point
Consider multiple targets
- First symmetrical triangle pattern target: 61.80% of pattern height (partial exit)
- Full symmetrical triangle pattern target: 100% of pattern height (additional exit)
- Extended symmetrical triangle pattern target: 1.618× pattern height with trailing stop

Step 9: Manage the Trade

Actively manage your position as the trade develops:

Monitor volume behaviour after breakout
Consider scaling out at key target levels
Trail stops as price advances to protect profits
Exit immediately if price re-enters the triangle, or join the new trend

Symmetrical Running Triangle Trade

A practical example of a bullish running triangle breakout following a reversal in GBPUSD, early to mid-February:

A running triangle identified on GBPUSD with four touchpoints
A breakout occurs after pin bar coiling, and volume increases
Entry executed at 1.2476 after trendline break at 76% of pattern (took 21 days to form, break occurred on the 16th)
Stop placed at the triangle's second-lowest point – wave c – at 1.2330 (below 1.2330, there are limited odds of upward continuation)
Full target projected using the triangle's height at 1.2758 (risk:reward of 1.93×)
Position can be managed with a trailing stop after the initial target (at 1.2641), with full and extended (at 1.2951) targets reached

GBPUSD Triangle Trade, Bullish Running Triangle (ThinkMarkets)

GBPUSD Bullish Running Triangle Trade

Mastering Triangle Pattern Trading

Mastering symmetrical triangle patterns requires a good eye in pattern recognition, understanding and closely watching volume behaviour and treating each trading opportunity contextually. However, the key to successful symmetrical triangle trading is more about managing the trade in a systematic way and using reasonable entry and exit levels with historical validity.

With demo and live practice and consistency, symmetrical triangles can evolve from challenging patterns into a cornerstone of one’s trading approach. Trading symmetrical triangles effectively isn't about finding a magical formula but more about maintaining discipline and continuous improvement.

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