Technical analysis · Intermediate

Common Chart Patterns

A pattern is consolidation drawn as a shape. It is worth trading only when you can say what the shape means and where it is proved wrong.

Last reviewed 15 September 2026 by the MarketPro research desk · Editorial policy

In short

Chart patterns are recurring shapes formed by the contest between buyers and sellers. Continuation patterns such as flags and triangles show a pause inside an existing move. Reversal patterns such as double tops and head and shoulders show repeated failure at an extreme. A pattern is only complete when its boundary breaks, and every pattern provides a natural invalidation price, which is what makes it tradeable rather than decorative.

What to remember

A pattern is complete on the boundary break, not before. Anticipating the break is a different trade with worse odds and a wider stop.
Every pattern hands you an invalidation price. If you cannot point at the price that proves the idea wrong, you have a hope rather than a trade.
The measured move is a rough guide, not an obligation. A pattern only 30 pips tall projects 30 pips, and the spread eats a real slice of that.
Obvious boundaries attract stop orders, which is exactly why false breaks are a recognised behaviour rather than a broken rule.

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Patterns are consolidation described in shapes

A chart pattern is a recurring shape produced by the tug-of-war between buyers and sellers. Nothing mystical is happening. A triangle forms because each attempt to sell is met slightly higher and each attempt to buy is met slightly lower, which is compression. A double top forms because the same price rejected two separate attempts, which is evidence that supply exists there. The shape is a summary of the behaviour, and the behaviour is the reason the shape means anything.

That framing matters because it tells you when a pattern is worth attention. If you can state what the shape says about the contest, you have something. If you can only name it, you have a picture.

Continuation patterns

Flags and pennants. A sharp directional move followed by a small, tilted or converging consolidation. The move impounds new information, then the market pauses while positions change hands. A break in the direction of the original move suggests the pause is over.
Triangles. Converging highs and lows, so the range narrows candle by candle. Ascending triangles (flat top, rising lows) lean bullish because buyers keep paying more while sellers hold one price. Descending triangles lean bearish for the mirror reason. Symmetrical triangles are neutral until one side gives.
Rectangles. A flat range with two obvious boundaries. The least glamorous pattern and the easiest one to define a stop against, because the invalidation price is drawn on the chart already.

Reversal patterns

Double top and double bottom. Two failed attempts at the same extreme. The pattern completes on the break of the middle swing (the neckline), not on the second touch. A trader who sells the second top is anticipating, which is a different and lower-odds trade.
Head and shoulders. A higher high (the head) between two lower highs (the shoulders), completed by a neckline break. Read as structure, it is a failed higher high followed by a break of the last higher low. The inverse version marks potential bottoms.

Three rules that keep this honest

Wait for confirmation. A pattern is only complete when its boundary breaks. Everything before the break is a shape that might become a pattern, and the difference between those two things is where most of the losses live.

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Define invalidation before you enter. Every pattern hands you a natural stop location: beyond the second top, back inside the flag, the other side of the triangle. If you cannot point at the price that proves the idea wrong, you do not have a trade, you have a hope.

Measure objectives conservatively. The textbook measured move projects the height of the pattern from the breakout point. Treat it as a rough guide. Taking partial profit before the full projection is normal practice, and the profit calculator makes it easy to see what a partial exit is actually worth before you decide.

A rectangle, priced out

GBP/USD builds a rectangle between 1.2600 and 1.2700 for three weeks. The pattern height is 100 pips. Price closes at 1.2725, above the top. The measured objective is 1.2800, and the natural invalidation is a close back inside, below roughly 1.2680.

So the trade risks about 45 pips to make about 75. That is a real ratio you can evaluate before committing, and it is better arithmetic than most chart-pattern trading involves. Note that the numbers came from the pattern, not from a preference. If the same rectangle had been 30 pips tall, the projection would have been 30 pips and the spread would have eaten a meaningful slice of it, which is the honest reason small patterns on low timeframes rarely pay.

Why patterns fail

The false break is the pattern's shadow. Obvious boundaries attract stop orders, and clusters of stops are attractive to take out. A break that immediately reverses is not a broken rule, it is a recognised behaviour of the market.
Low timeframes dilute everything. A head and shoulders on a 5-minute chart formed on a fraction of the participation behind a daily one. Same shape, far less evidence.
Pattern recognition is subjective. Two competent people will disagree about whether a shape qualifies, which means published success rates for patterns are measuring somebody else's definition, not yours.
Hindsight makes them look inevitable. Every completed pattern is obvious once the right-hand side exists. Identifying it before the break is the actual skill, and it is much harder.

Get your own numbers instead

Do not believe a textbook success rate for any pattern, including the ones above. Instead, log every pattern you trade in your journal with four fields: the pattern, the timeframe, whether the breakout held for at least one further candle, and the result in R. After forty entries you will have something no book can give you, which is how you identify patterns and how those identifications behave on the instruments you actually trade.

Expect the answer to be uncomfortable. Many people discover that two of their five favourite patterns account for almost all of the damage, and that the timeframe mattered more than the shape. Patterns fail often, and a plan that survives the failures matters more than one that maximises the wins, which is the whole argument of the risk management guide.

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Written and reviewed by the MarketPro research desk

MarketPro is a trading-signal and trading-education app operated by Harajuku Holdings LTD (Cyprus). Our signal desk publishes and tracks every trade idea in-app, and every page here is checked against the app's live behaviour before publishing. Last reviewed 15 September 2026. How we produce signals and content · About MarketPro

FAQ

Common Chart Patterns: questions

How reliable are chart patterns?

Patterns fail regularly, and published reliability figures are measuring somebody else's definition of the pattern rather than yours. Two competent analysts will disagree about whether a given shape qualifies, which makes the statistic hard to transfer. The practical answer is to log your own pattern trades with the timeframe and result, then judge from your own sample.

What is the difference between a flag and a pennant?

Both are short consolidations after a sharp move, and both suggest continuation when they break in the original direction. A flag consolidates in a small parallel channel that usually tilts against the prior move, while a pennant converges into a small symmetrical triangle. The distinction rarely changes how the trade is managed, since the invalidation in both cases is a move back inside the consolidation.

Should you trade patterns on lower timeframes?

You can, but the same shape carries far less evidence. A head and shoulders on a 5-minute chart is built from a fraction of the participation behind a daily one, and the pattern height is often small enough that spread and commission consume a meaningful part of the projected move. Higher timeframes give fewer patterns with better arithmetic behind them.

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