Heikin Ashi candles: formula, how to read them and when to use them
What are Heikin Ashi candles?
Heikin Ashi (Japanese for "average bar") is a way of drawing candles that smooths price action so trends are easier to see. Each Heikin Ashi candle is built from averages of the current and previous candle rather than raw open and close prices.
The result is a chart where trends show as long runs of same-coloured candles with few interruptions, and changes in trend show as small-bodied candles with wicks on both sides. It looks cleaner than a normal candlestick chart, but the cost is that Heikin Ashi prices are not the actual traded prices.
HA Open = (previous HA Open + previous HA Close) ÷ 2
HA High = max(High, HA Open, HA Close) · HA Low = min(Low, HA Open, HA Close)
The Heikin Ashi formula, step by step
HA Close
The average of the real open, high, low and close of the current candle. It represents the candle's average price.
HA Open
The midpoint of the previous Heikin Ashi candle's open and close. This links each candle to the one before and is what creates the smoothing.
HA High and HA Low
The highest and lowest of the real high/low and the HA open and close.
Illustration
A NIFTY 5-minute candle: open 24,100, high 24,130, low 24,090, close 24,125. HA Close = 96,445 ÷ 4 = 24,111.25. If the previous HA candle had open 24,080 and close 24,098, HA Open = 24,089. The HA candle is green from 24,089 to 24,111, with an HA high of 24,130 (the real high) and an HA low of 24,089, the lowest of the real low 24,090, HA open and HA close. With no lower wick, it reads as a strong up candle.
Notice the HA close of 24,111 differs from the real close of 24,125 by 14 points. That gap is why Heikin Ashi should not be used for exact prices.
How to read Heikin Ashi candles
- Green candles with no lower wick: strong up-trend; buyers in control.
- Red candles with no upper wick: strong down-trend; sellers in control.
- Small bodies with wicks on both sides: indecision; the trend may be pausing or changing.
- Colour change: a shift in the averaged direction, which lags the real turn by a candle or more.
The main advantage is psychological: long runs of same-coloured candles make it easier to stay with a trend instead of reacting to every small red candle on a normal chart.
Best Heikin Ashi use for NIFTY 5-minute
Heikin Ashi has no period setting. The choices are timeframe and how you use it:
- 5-minute HA: readable trend view for NIFTY and BANKNIFTY intraday.
- 15-minute HA: cleaner trend context with a regular 5-minute chart for exact levels.
- Side by side: many traders keep a normal candlestick chart for prices and stops, and an HA chart only to read trend.
Avoid 1-minute HA for decisions; the averaging lag is large relative to the tiny moves.
Heikin Ashi strategy ideas (educational)
1. Stay with the trend
Hold a trend reading while HA candles stay one colour with no opposite wicks, and start paying attention when bodies shrink and opposite wicks appear.
2. HA with a trend filter
Combine HA colour with VWAP or a 20 EMA from the moving averages guide. Only treat green HA runs as meaningful while price is above VWAP, and red runs while below.
3. HA with Supertrend
HA candles smooth price and Supertrend trails it; some traders use both to reduce flips. Note that Supertrend calculated on HA data behaves differently from Supertrend on normal candles.
4. Pullback recognition
In an up-trend, one or two small HA candles with lower wicks near a level, followed by a strong green candle with no lower wick, shows the pullback ending in averaged terms.
The big limitation: Heikin Ashi prices are not real
Because HA open and close are averages, the price at which an HA candle opens or closes may never have traded. This creates real problems:
- Stops and targets set from HA prices sit in the wrong place.
- Gaps disappear: the 9:15 IST opening gap in NIFTY is smoothed over, hiding important information.
- Backtests mislead: testing entries at HA closes can show results that could never be achieved with real fills.
- Levels shift: support, resistance and liquidity levels should always be drawn on real candles.
Use HA to read trend and normal candles to execute and measure risk.
Combining Heikin Ashi with volume and footprint
HA candles hide the detail inside each candle. The footprint chart shows the opposite: exact buy and sell volume at each price. A useful pairing is HA for trend direction and footprint for what happens at the level. If HA shows a strong green run but the footprint shows absorption at the high and cumulative delta turning down, the averaged trend may be about to stall.
Worked BANKNIFTY example (illustration)
Illustration with plausible numbers. BANKNIFTY on a 5-minute HA chart prints nine green candles with no lower wicks from 51,500 to 51,820 between 9:30 and 10:30. On the normal chart, three of those candles were red, which may have shaken out a trader watching only raw candles.
At 10:45 HA bodies shrink and wicks appear on both sides near 51,830, which on the real chart is the previous day's high. The footprint shows heavy buying absorbed there. Two candles later the HA colour turns red. A trader would note the real-candle level, not the HA price, as the reference. Trading F&O carries a high risk of loss; this only illustrates how HA presents a trend.
Common Heikin Ashi mistakes
- Placing stops or targets using HA prices.
- Expecting HA to show reversals early; it lags.
- Drawing support and resistance on HA candles.
- Applying normal candlestick patterns such as engulfing to HA candles.
- Backtesting on HA closes without real-price fills.
Seeing it on the TradingMarble chart
On the TradingMarble chart you can switch NIFTY, BANKNIFTY and F&O charts to Heikin Ashi to read trend, then switch back to normal candles or the footprint to see real prices and real buying and selling. See the features page.
Heikin Ashi checklist
- What colour run is HA showing, and are there opposite wicks?
- Are bodies growing or shrinking?
- Does VWAP or a higher timeframe agree?
- Are levels and stops drawn on real candles?
- Does the footprint confirm at the level?
Heikin Ashi candles are a calm way to read trend; just remember to trade and measure risk on real prices.
Frequently asked questions
What is Heikin Ashi in trading?
Heikin Ashi is a candle type that uses averaged prices to smooth the chart. Each candle's close is the average of open, high, low and close, and its open is the midpoint of the previous Heikin Ashi candle. Trends appear as long runs of same-coloured candles.
Is Heikin Ashi good for intraday trading?
Heikin Ashi helps intraday traders see the trend on 5-minute or 15-minute charts and avoid reacting to every small counter-move. Because HA prices are averages, stops, targets and levels should be set on normal candles. Many traders use both charts side by side.
What is the difference between Heikin Ashi and normal candlesticks?
Normal candlesticks show the real open, high, low and close traded in each period. Heikin Ashi candles show averaged values linked to the previous candle. This makes trends cleaner but hides gaps and exact prices.
Does Heikin Ashi repaint?
Completed Heikin Ashi candles do not change. The live candle changes until it closes, like any candle. However, HA values depend on the previous HA candle, so the chart can look slightly different depending on where the data history starts.
Can I use candlestick patterns on Heikin Ashi?
Classic patterns such as engulfing or hammer are defined for real prices, so they do not translate reliably to Heikin Ashi. On HA, the useful clues are colour runs, missing wicks in the trend direction and small bodies with wicks on both sides.
How do you read a Heikin Ashi doji?
A Heikin Ashi candle with a very small body and long wicks on both sides shows indecision in averaged terms. During a trend it suggests the move is pausing and may change direction, especially if it forms at a key level on the real chart.