Descending Triangle — Scary Name, Surprising Breakout Stats

Flat support below, progressively lower highs above — the descending triangle looks like a textbook signal of capitulation. Supply keeps pressing price toward the floor, so the floor should eventually crack, right? The data says: not necessarily. A breakout from this pattern occurs more often to the upside (53%) than the downside, and the single best-performing scenario is actually a failed downside breakout. Before you open a short "because descending triangle," look at the numbers.

How to Identify a Descending Triangle

The pattern is a mirror image of the ascending triangle:

• A horizontal support line — at least two clear lows at a similar level. Buyers defend a specific price.
• A descending line of highs — each bounce ends lower. Demand weakens with every attempt.
• At least five touches combined — one line at least three times, the other at least twice, with clear highs and lows.
• Price fills the pattern — it cuts across the triangle from band to band. Bulkowski explicitly warns: avoid triangles with a lot of empty space in the middle.
• Declining volume — turnover falls in 78% of cases and gets especially thin right before the breakout. Quiet before the decision.

The pattern confirms only at the moment of breakout — that is, when a candle closes beyond one of the lines. Until then, it's just a sketch on the chart. The breakout typically happens 61–65% of the way to the apex; if price reaches the very tip without resolving, the setup usually loses significance, and the market often reverses right there — near the apex, direction flips in around 60% of cases.

Identification mix-ups: descending highs without flat support point more toward a falling wedge; three equal, descending highs could be a falling three peaks pattern. Worth checking both before you name the structure a triangle.

What the Numbers Say — Not Opinions

Statistics from Bulkowski's "Encyclopedia of Chart Patterns," over 1,300 patterns, US stocks, daily chart, bull market:

Breakout direction: upward in 53% of cases — against the name and against intuition.

Quick term translations: fail (break-even failure rate) is the share of patterns in which price failed to travel even 5% in the breakout direction. Throwback/pullback is a return to the breakout level within a month — it hurts results but offers a second entry chance. Target is the share of patterns that delivered the measure-rule projection.

What follows from this:

• The pattern is two-sided. 53:47 isn't an edge you build a directional thesis on. You wait for the breakout.
• The downside breakout is relatively solid — a 15/36 rank among bearish patterns, 23% failure. But the average decline is only −15%, since declines are inherently faster and shorter than advances.
• The upside breakout can be explosive. Bulkowski admits he made more money on descending triangles with upside breakouts than on ascending ones — a strong move after an upside breakout from this pattern is a well-known phenomenon. The 33/39 rank, though, warns that the average is skewed by a handful of exceptional cases.
• Fairness requires adding: Bulkowski notes that this pattern's effectiveness has dropped by nearly half since the 1990s. Old textbooks cite old numbers.

Two filters that statistically improve the result: if price is rising going into the pattern, the upside breakout rate climbs to 63%; if volume rises during the pattern (a rarity), the median outcome improves noticeably.

Standard caveat: the measurement is from US stocks on the daily chart. On BTC/ETH the directional logic holds up, but treat the specific percentages as indicative only.

How to Trade a Descending Triangle

1. No position before the breakout

Since the direction is close to a coin flip, entering "in advance" inside the pattern is guessing. Wait for a candle close beyond the line — above the descending line of highs (long) or below the flat support (short).

2. Measure rule

Pattern height = the triangle's highest high minus the flat support level. Target on an upside breakout: breakout price + height × 64%. On a downside breakout: support level − height × 50%. Example: a triangle on BTC with a high of $68,000 and support at $62,000 has a height of $6,000. A downside breakout targets 62,000 − 3,000 = $59,000.

3. Retest as a second entry

A throwback (60%) and pullback (58%) occur in most cases. A return to the breakout level is an opportunity to enter with a tighter stop — provided the level actually holds (the former support acts as resistance, or vice versa).

4. Stop loss

Long on an upside breakout: below the last high on the descending line, or — conservatively — below the flat support, if the pattern isn't too tall. Short on a downside breakout: above the nearest local high inside the pattern. Bulkowski's lessons show plainly: skipping a stop on this pattern can turn a small mistake into a ride to the bottom.

5. Check what's above and below the pattern

The two most common causes of failed trades from Bulkowski's lessons: past resistance just above an upside breakout (a sideways consolidation from months back stops the move) and hard support just below the pattern that prevents further decline. Check the higher timeframe first, enter second.

⚠ Multi-peak trap: if a larger cluster of highs can be sketched in the background (say, the beginnings of a head and shoulders), an upside breakout often only reaches the level of the previous shoulder before fizzling.

Descending Triangle on Crypto — What to Watch For

On BTC and ETH, descending triangles form frequently, especially in distribution phases after longer uptrends. Three adjustments relative to the stock-market textbook:

• Fake breaks of support are the norm, not the exception. The flat floor of the triangle is a visibly obvious pool of stop-losses and sell-stop orders. Crypto markets love to reach it with a wick, grab the liquidity, and reverse — which is why the closed-candle criterion is non-negotiable here, and busted patterns happen, subjectively, even more often than in the stock data.
• Weekend liquidity lies. A breakout from the pattern on a Sunday morning with minimal turnover is a lower-confidence signal; wait for confirmation at normal liquidity.
• Check the correlation with BTC. A descending triangle on an altcoin at the moment BTC is sitting under its own resistance is often one and the same trade — bitcoin, not the local pattern, will decide the direction.

Pre-Entry Checklist

1. Flat support (at least 2–3 touches) plus descending highs; at least 5 touches combined, price filling the pattern.
2. Volume fading toward the breakout; breakout before ~2/3 of the way to the apex.
3. Entry only after a candle close beyond the line.
4. Checked surroundings: no hard resistance just above (for a long) or support just below (for a short).
5. Stop: long — below the last lower high or support; short — above the last high in the pattern.
6. Target calculated from the measure rule before entry; R:R below 1:2 = no trade.

Busted Pattern — This Pattern's Gem

42% of downside breakouts from a descending triangle reverse — price falls less than 10%, bounces, and closes above the pattern's upper edge. This is the busted descending triangle, one of Bulkowski's favorite setups.

Numbers (276 busted patterns out of 650 studied):

• 71% of busts are single busts — one clean reversal without further whipsawing,
• a single bust delivers an average of +54% — the best result of any scenario for this pattern,
• for comparison: a regular, non-busted upside breakout averages +38%.

Entry mechanics: after a failed downside breakout, wait for a candle close above the triangle's upper edge (not above the trendline — above the pattern's highest high). Enter on the open of the next candle, stop below the low of the fake breakout. A more aggressive version — a buy order right above the edge — gets a better price but catches more fakeouts.

Myth vs. Data

Myth: "Descending triangle = supply is winning, the flat support will crack. You see the pattern, you look for a short."

Data: an upside breakout is more frequent (53%), and the most profitable scenario is a failed downside breakout (+54% average). A trader who reflexively shorts on seeing a descending triangle is trading against their own statistics — and against whoever is waiting on the other side of their stop loss.

The pattern's name describes its shape, not the future of price. Only the data knows the distribution of outcomes — which is exactly why every pattern on this blog comes with numbers instead of adjectives. The textbook says "bearish pattern"; the data says "wait and see." Listen to the data.

FAQ

Rafał — Krypto Bez Ściemy

Trader and founder of Strefa Tradingu. He’s been breaking crypto down on YouTube for years — no hype, no signals, with a focus on market structure and risk management.

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