Chart patterns for trading: how to read them
Chart patterns are shapes price makes over weeks, such as double bottoms, head and shoulders, flags and triangles. Reversal patterns hint that a trend may turn; continuation patterns hint that it may resume. A pattern only counts once price breaks its neckline or trendline, ideally on higher volume, with a stop-loss planned beforehand.
- Shape
- Two lows at about the same price, with a peak between them (the neckline).
- Breakout
- A close above the neckline.
- Measured target
- Neckline plus the height from the lows to the neckline.
Chart ends at ₹470.00. Patterns fail too — the stop-loss still decides the loss.
- 1Open each pattern and find the breakout candle before reading the label.
- 2Check the measured target: it's the pattern's height, added to the breakout.
- 3Compare the double bottom and the inverse head and shoulders. Both are bases.
What chart patterns are
Where candlestick patterns cover one to three days, chart patterns cover weeks. They are built from swing highs and lows, so they're really support and resistance arranged into a shape.
Every pattern has a line that matters — a neckline or trendline. Until price closes beyond it, the pattern isn't finished, however good it looks.
Reversal patterns
These form at the end of a move and hint that the trend may turn.
- Double bottom: two lows at about the same price, with a high between them. It completes when price closes above that middle high (the neckline).
- Double top: the mirror — two highs at about the same price, completed by a close below the low between them.
- Head and shoulders: three highs, the middle one highest. A close below the line joining the two lows between them completes it.
- Inverse head and shoulders: three lows, the middle one lowest, completed by a close above the neckline.
Continuation patterns
These form as pauses inside a trend and hint that the trend may resume.
| Pattern | Shape | Usually breaks |
|---|---|---|
| Cup and handle | A rounded dip, then a small pullback near the old high | Upward, above the rim |
| Bull flag | A sharp rise, then a short, gentle drift down | Upward, above the flag |
| Ascending triangle | Flat highs, rising lows | Upward, above the flat top |
| Descending triangle | Flat lows, falling highs | Downward, below the flat base |
| Symmetrical triangle | Falling highs and rising lows meeting in a point | Either way — wait for the break |
Note the descending triangle: it usually breaks down. In the NSE cash segment you can't hold a short position overnight, so for a delivery trader it mostly says "don't buy yet" or "protect the long you hold".
Each pattern: entry, stop and first target
Every pattern gives you three prices: where it completes, where it fails and how far it may travel. Here is how swing traders usually plan each one on the daily chart.
| Pattern | Entry trigger | Stop-loss | First target |
|---|---|---|---|
| Double bottom | Close above the middle high | Below the right-hand low | Height added to the neckline |
| Double top | Close below the middle low (exit longs) | Above the right-hand high | Height taken off the neckline |
| Head and shoulders | Close below the neckline (exit longs) | Above the right shoulder | Head-to-neckline height taken off the neckline |
| Inverse head and shoulders | Close above the neckline | Below the right shoulder | Head-to-neckline height added to the neckline |
| Cup and handle | Close above the rim | Below the handle's low | Cup depth added to the rim |
| Bull flag | Close above the top of the flag | Below the flag's low | Length of the pole added to the breakout |
| Ascending triangle | Close above the flat top | Below the last rising low | Triangle height added to the top |
| Descending triangle | Close below the flat base (exit longs) | Above the last falling high | Triangle height taken off the base |
| Symmetrical triangle | Close beyond either line | Inside the triangle, beyond the last swing | Widest height of the triangle |
The handle and the flag are why traders like these two: the pullback is small, so the stop is close and the position can be a sensible size.
Breakout or retest: two ways in
Once a pattern completes, there are two common entries. Neither is better in every case. Pick one and use it the same way every time.
- Flat top
- ₹720, tested three times
- Last rising low
- ₹690
- Breakout entry
- Close above ₹720, buy near ₹724, stop ₹688: risk ₹36
- Retest entry
- Price breaks out, dips back to ₹722, holds: buy ₹726, stop ₹710: risk ₹16
- Triangle height
- ₹720 − ₹670 (first low) = ₹50
- Measured target
- ₹720 + ₹50 = ₹770
The retest entry has less than half the risk per share, so you can hold more shares for the same rupee risk. The trade-off: many strong breakouts never come back, and you miss them.
Whichever you use, size the trade with the position size calculator so a failed pattern costs only what you planned.
What volume tells you inside a pattern
Volume is the number of shares traded. It doesn't need to be perfect, but it helps you judge whether a pattern is real.
- While the pattern forms: volume often fades as the range tightens. Quiet bases show sellers drying up.
- On the breakout day: volume above its 20-day average shows more people taking part.
- On a retest: lighter volume on the pullback is a good sign. Heavy selling back into the pattern is a warning.
- Delivery percentage: NSE publishes how much of each day's volume was taken for delivery. A breakout with a higher delivery share than usual suggests buyers intend to hold, not just trade intraday.
Measuring a target in rupees
A common way to set a first target is the measured move: take the height of the pattern and add it to the breakout point.
- Two lows
- About ₹400
- Neckline (middle high)
- ₹440
- Height
- ₹440 − ₹400 = ₹40
- Breakout entry
- A close above ₹440, say ₹442
- Stop-loss
- Below the right-hand low, ₹422
- Measured target
- ₹440 + ₹40 = ₹480
You risk about ₹20 a share to aim for about ₹38. The target is a guide, not a promise — price may stop short at an earlier level.
Check the trade with the risk-reward calculator before you place it.
Why patterns fail
- False breakouts: price closes past the line, then falls straight back. Waiting for a daily close, not an intraday poke, filters some of these.
- Low volume: a breakout few people take part in often fades. Look for volume above its recent average.
- Against the bigger trend: a bull flag in a falling market is a weaker idea than one in a rising market.
- Seeing what you want to see: if you have to squint to find the shape, it probably isn't there.
- Results and news: a pattern can be cut short by a quarterly result or an overnight event. A gap through your stop fills at the open price, not at the stop.
- Entering before completion: buying a double bottom before the neckline breaks is buying two lows, not a pattern. Many such setups roll over and make a third, lower low.
When a well-formed pattern fails quickly, read that as information. A bullish pattern that breaks down tells you sellers were stronger than they looked, and the stock is best left alone for a while.
A pattern gives you a place to enter and a place to be wrong. The stop-loss is part of the pattern, not an afterthought.
Quick check
Key terms
- Neckline
- The line a reversal pattern must break to complete, such as the high between two lows.
- Breakout
- A close beyond a pattern's line or a key level, often on higher volume.
- Measured move
- A target found by adding a pattern's height to its breakout point.
- False breakout
- A move past a level that quickly reverses back inside it.
Common questions
Which chart pattern is best for beginners?
The double bottom and double top are the easiest to spot and to plan: the neckline gives a clear entry and the lows or highs give a clear place for the stop.
How long does a chart pattern take to form?
On the daily chart, usually a few weeks to a few months. Flags are quicker; cup and handles and head and shoulders take longer.
Do chart patterns always reach their target?
No. The measured move is a guide. Many breakouts stall at an earlier level or fail, which is why every trade needs a stop-loss.
Should I trade a breakout or wait for a retest?
Both are used. Buying the breakout gets you in earlier; waiting for price to come back to the broken line gives a tighter stop but can miss the move.
What is the difference between chart patterns and candlestick patterns?
Candlestick patterns use one to three candles and describe a short shift in control. Chart patterns form over weeks from swing highs and lows. Swing traders often use a chart pattern for the setup and a candle for the exact entry.
What happens if a breakout fails?
Price slips back inside the pattern and hits your stop-loss. That is the cost of the trade, and it was known before entry. A failed bullish pattern is often a sign that sellers are stronger than they looked.
Is a cup and handle bullish?
It is a continuation pattern that usually forms in an uptrend and breaks upward above the rim. It is only complete when price closes above the rim, and it can still fail.
Chart pattern kya hota hai?
Price kuch hafton mein jo shape banata hai — jaise double bottom, head and shoulders ya triangle. Pattern tab poora hota hai jab price neckline ya trendline ke paar close kare.
Keep going
Education only — not investment advice. Trading in the stock market carries risk. Charts on this page use made-up prices for practice — they are not real stocks or recommendations. Examples are for learning only.