Short answer: A descending triangle is a bearish chart pattern, meaning it signals that prices may fall. It is made of a downward-sloping upper line and a flat horizontal support line below it, and it appears only during an existing downtrend. Traders use it to watch whether that downtrend will continue.
Last reviewed: 8 November 2026
At a glance
| Term | What it means in this pattern |
|---|---|
| Upper trendline | A downward-sloping line joining successive lower highs, which are peaks each lower than the one before |
| Lower highs | Falling peaks that show buyers cannot push the price back to earlier peaks |
| Flat support | A horizontal floor where the price keeps bouncing until a breakout happens |
| Breakdown | A decisive price break below the flat support, used by traders as a sell signal |
| Measured target | The triangle’s height, used to estimate a likely take-profit target (the price at which a trader closes a position to lock in gains) after a breakdown |
| False breakdown | A break below support that fails, so the price may first retest the upper resistance before moving lower |
What does the pattern look like on a chart?
A chart shows the price of an asset over time. In a descending triangle, the price makes a series of peaks, and each peak is lower than the one before. A line drawn across those peaks slopes downward, and this is the upper trendline.
Below it, the price repeatedly falls to the same level and bounces back up. A line drawn along those bounce points is flat and horizontal. Together, the sloping upper line and the flat base form a triangle that narrows toward the right.
Why is it called a continuation pattern?
A continuation pattern is a formation that suggests the existing trend will carry on in the same direction. A descending triangle forms only when a downtrend, a period in which prices are generally falling, is already in place. That is why it is treated as a continuation pattern for that downtrend.
If there is no prior fall in the price, the same shape is not read in this way. The pattern’s meaning depends on the trend that came before it.
What do the lower highs tell you?
Each lower high shows that the price rose less far on its most recent attempt than it did the time before. Buyers are unable to push the price back up to the earlier peaks. That tells you sellers are gaining control of the price.
The lower highs are the reason the upper line slopes down. The flat support line, by contrast, shows where buyers are still stepping in.
Why does the flat support line matter?
The flat support line acts as a floor. The price keeps bouncing off it, which means buyers keep appearing at roughly the same level. The pattern continues until the price breaks out of the triangle, in either direction.
A pattern where the floor holds for many bounces is not the same as one where it breaks. The triangle only shows a breakdown once the price moves decisively below the flat support.
How do traders use a breakdown as a signal?
A decisive break below the flat support is the signal that traders use to enter a short position. A short position is one where a trader sells first and hopes to buy back later at a lower price. The trader expects the downtrend to continue.
A breakdown is a signal, not a guarantee. The trader is betting on the direction of the price, and the bet can go wrong.
How is the triangle’s height used to estimate a target?
Traders measure the height of the triangle, the vertical distance between the highest peak and the flat support, and use it as a rough estimate of how far the price might fall after a breakdown. The estimate is taken from the breakdown level, so the height is subtracted from it.
Here is a hypothetical example, using invented figures for illustration only. Suppose a share quoted in rupees has its flat support at ₹500, and its highest peak in the triangle is at ₹560. The height is ₹560 minus ₹500, which is ₹60. If the price breaks down at ₹500, the measured move is ₹500 minus ₹60, which is ₹440. This is only arithmetic to show how the method works. It is not a forecast, and the price could stop anywhere.
What are the main risks?
The biggest risk is a false breakdown. The price may dip below the flat support, appear to confirm the pattern, and then recover. A trader who sold on that dip could lose money if the price rises again.
Using the same hypothetical numbers, suppose the price falls to ₹495 and then climbs back to ₹520, which is near the upper resistance. The breakdown has failed, and the sell position moves against the trader. If the price does not break down at all, it may first retest the upper resistance before moving lower, which can take time and can also end the pattern without a fall.
Frequently asked questions
Does a descending triangle always mean prices will fall?
No. It is a bearish pattern, and a decisive break below the flat support is the signal traders use to expect the downtrend to continue. A false breakdown is a real risk, so the signal can fail.
Can a descending triangle form in an uptrend?
The pattern forms only when an existing downtrend is already in place. It is therefore treated as a continuation pattern for that downtrend.
What happens if the price does not break down?
The price may first retest the upper resistance before moving lower. The pattern does not force a breakdown on any particular timeline.
How is a target estimated after a breakdown?
The height of the triangle is measured and used to estimate a likely take-profit target after the breakdown. It is an estimate, not a guarantee of where the price will stop.
Sources and last check
Facts in this article were checked against the sources below on 8 November 2026. Rules and figures can change; check the primary source before acting.
- groww.in (broker education)
- kotakneo.com (broker education)
- upstox.com (broker education)
This article is general information, not investment advice. MyFinanceBandhu is not a SEBI-registered investment adviser.