The Heiken Ashi Indicator

Updated October 23, 2026

Heiken Ashi is a charting method that averages price data to make trends easier to read. The averaging is the entire point, and it is also the source of every limitation the method has. Updated September 2026.

How the candles are calculated

This is the part most explanations skip, and nothing else makes sense without it.

A standard candle shows the actual open, high, low and close for a period. A Heiken Ashi candle shows averaged values instead: the close is the average of that period's open, high, low and close, while the open is the average of the previous Heiken Ashi candle's open and close.

The consequence is direct. The prices shown on a Heiken Ashi chart are not prices the market traded at. The chart is smoother and the trend clearer, and in exchange you are no longer looking at actual transaction levels.

What it is for

Introduced in 2004, Heiken Ashi is used to identify trend direction more clearly than standard candlesticks allow.

The smoothing filters out much of the noise that produces false signals on a conventional chart. Consecutive candles of the same colour indicate a sustained trend, and colour changes are less frequent than on standard candles.

Reading the candles

• Long green candles with little or no lower shadow: strong upward momentum

• Long red candles with little or no upper shadow: strong downward momentum

• Short bodies with long shadows on both sides: indecision, often preceding a reversal

• Short bodies with short shadows: consolidation or a ranging market

• Candles with shadows on both sides and a small body during a trend: weakening momentum

The absence of a shadow on one side is the key signal. In a strong uptrend, Heiken Ashi candles frequently have no lower shadow at all, and the first candle that develops one indicates the move is losing strength.

Trading with it

In strong trends, hold the position while candles remain the same colour with shadows on one side only. This is where the method performs best, because it discourages exiting on a single counter-move.

For reversals, watch for small bodies with shadows on both sides appearing after a run of one-sided candles. A colour change following that pattern is the signal, not the colour change alone.

In sideways markets the candles alternate colour frequently with small bodies, which is itself the information: it tells you no trend exists and that trend-following entries will fail.

Advantages

• Beginner friendly: trend direction is visually obvious without further interpretation

• Widely available: supported on essentially every charting platform

• Works across markets and timeframes

• Filters false breakouts effectively, which is its main practical benefit

• Combines well with other indicators, since it answers direction while others answer timing

Limitations

• Actual price data is not shown, the values are averaged

• Price gaps are invisible, since the calculation smooths across them

• Poor for short-term trading, where the smoothing removes exactly the movement being traded

• Signals lag, because averaging incorporates previous periods

• Entry and exit levels must come from a standard chart, since the displayed levels are not tradeable prices

The last point is the practical one. Do not set a stop loss at a level read from a Heiken Ashi candle: that price may never have existed. Use Heiken Ashi to determine direction, then switch to a standard chart to place orders.

The smoothed variant

Heiken Ashi Smoothed applies a moving average to the price data before the Heiken Ashi calculation, producing an even cleaner trend display.

It reduces false signals further and increases lag by the same mechanism. It suits position trading on higher timeframes and is unsuitable for anything short-term, where the additional delay outweighs the additional clarity.

Practical use

• Use Heiken Ashi to identify trend direction, not to set price levels

• Switch to a standard candlestick chart for entries, stops and targets

• Watch for the first candle with a shadow on the opposite side as an early warning

• Avoid it for short-term trading, the smoothing removes the movement you are trading

• Use the smoothed variant only on higher timeframes where lag is acceptable

• Remember that gaps are invisible on this chart type

See related trading guides and compare charting platforms in our forex brokers section.

Heiken Ashi: frequently asked questions

How are Heiken Ashi candles calculated?

The close is the average of the period's open, high, low and close. The open is the average of the previous Heiken Ashi candle's open and close.

Do Heiken Ashi candles show real prices?

No. The values are averaged, so the levels displayed may never have traded. Use a standard chart for entries and stops.

What does a candle with no lower shadow mean?

Strong upward momentum. The first candle that develops a lower shadow indicates the move is losing strength.

Is it suitable for short-term trading?

No. The smoothing removes exactly the short-term movement being traded, and signals lag because averaging incorporates previous periods.

What is Heiken Ashi Smoothed?

A variant applying a moving average before the Heiken Ashi calculation. Cleaner trends, more lag, suitable only for higher timeframes.

Reversals

Strong Trends

How Do I Set up the Heiken Ashi Candle Pattern Indicator

What is Heiken Ashi

Can I place a stop loss from a Heiken Ashi level?

No. That price may never have existed. Determine direction on Heiken Ashi, then place orders using a standard chart.

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