Heikin Ashi Candles: Formula, Strategy and Limitations

Heikin Ashi is a candlestick chart type that averages price data to filter out noise and make trends easier to see. The name is Japanese for "average bar". Each Heikin Ashi candle is built from the current bar and the previous Heikin Ashi candle, so a strong trend shows up as a run of same-coloured candles with few wicks against the move.

That smoothing is useful, but it comes at a cost. Heikin Ashi prices are calculated values, not prices that actually traded. This guide shows the 4 formulas, works through a numeric example, explains how Heikin Ashi candles differ from regular candlesticks, and covers a simple Heikin Ashi strategy, the best timeframes and the limitations you need to respect.

Quick answer: Heikin Ashi candles are averaged candlesticks. The Heikin Ashi close is the average of the bar's open, high, low and close, and the Heikin Ashi open is the midpoint of the previous Heikin Ashi candle's body. The result is a smoother chart that highlights trend direction, but its open and close are not real market prices, so entries and stops must be placed using the regular chart.

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What are Heikin Ashi candles?

Heikin Ashi candles are a modified form of the Japanese candlestick. A regular candle shows the actual open, high, low and close of one period. A Heikin Ashi candle shows averaged values, which pulls each candle toward the one before it and removes much of the bar-to-bar noise. If you are new to reading candles, start with our candlestick patterns guide, which covers the anatomy of a candle, and how to read stock charts.

The technique was popularised for Western traders by Dan Valcu in a 2004 article in Technical Analysis of Stocks and Commodities magazine. Today it is a built-in chart type on most charting platforms, including TradingView.

Thinking about trading trends on a funded account? Read why traders fail prop challenges, how a static maximum drawdown works and how the top prop firms compare first.

The Heikin Ashi formula

Heikin Ashi uses 4 formulas, one for each price of the candle. As TradingView's help centre and Britannica Money both set out, each candle depends on the current period's real prices and on the previous Heikin Ashi candle.

The first candle on a chart has no previous Heikin Ashi candle, so the HA open is usually seeded as (Open + Close) / 2 of the first real bar. After a few candles, the seed value has almost no effect.

Two details matter. First, the HA close is the average price of the whole bar, so it sits somewhere inside the bar's range, rarely at the real close. Second, the HA open is the midpoint of the previous Heikin Ashi body, which is why each new candle opens in the middle of the last one rather than where price actually opened.

Worked example: 3 Heikin Ashi candles

Here are 3 regular bars and the Heikin Ashi candles calculated from them.

Candle 1. HA close = (100 + 104 + 99 + 103) / 4 = 101.5. There is no previous Heikin Ashi candle, so HA open = (100 + 103) / 2 = 101.5. HA high = highest of 104, 101.5, 101.5 = 104. HA low = lowest of 99, 101.5, 101.5 = 99.

Candle 2. HA close = (103 + 107 + 102 + 106) / 4 = 104.5. HA open = (101.5 + 101.5) / 2 = 101.5. HA high = highest of 107, 101.5, 104.5 = 107. HA low = lowest of 102, 101.5, 104.5 = 101.5.

Candle 3. HA close = (106 + 108 + 103 + 104) / 4 = 105.25. HA open = (101.5 + 104.5) / 2 = 103. HA high = highest of 108, 103, 105.25 = 108. HA low = lowest of 103, 103, 105.25 = 103.

Look at bar 3. The real candle is red: it opened at 106 and closed at 104. The Heikin Ashi candle is green and closes at 105.25, a price that never printed as a close. A trader reading only the Heikin Ashi chart would see an intact uptrend, while the real chart shows the first down bar of the move. That gap between the two charts is the whole point of Heikin Ashi, and also its main risk.

Heikin Ashi vs regular candlesticks

Both chart types use the same candle shape, but they answer different questions. Regular candles tell you exactly what happened. Heikin Ashi candles tell you what the trend is doing.

Because the formula averages the current bar with the previous candle, Heikin Ashi behaves like a light moving average applied to candles. If you already use moving averages for trend direction, Heikin Ashi gives a similar read in candle form, with similar lag.

How to read Heikin Ashi candles

A few visual rules cover most of the reading.

• Strong uptrend: green candles with no lower wick. Buyers are in control.
• Strong downtrend: red candles with no upper wick. Sellers are in control.
• Weakening trend: bodies shrink and wicks appear on both sides.
• Possible turn: a small-bodied candle with long upper and lower wicks, the Heikin Ashi version of indecision, followed by a change of colour.
• Range: colours alternate every few candles and wicks appear on both sides. This is where Heikin Ashi stops being useful.

The colour itself is not a signal. A single red Heikin Ashi candle in an uptrend is often just a pullback. What matters is the sequence: body size, wick placement and whether the colour change holds for more than one candle.

Why Heikin Ashi prices differ from real prices

Every Heikin Ashi value except, sometimes, the high and the low is synthetic. The HA close is an average, and the HA open is the midpoint of the prior average. On a fast move, the HA close can be several points away from the real close, as bar 3 in the example shows.

This has 3 practical consequences.

1. Entries: if you enter at "the Heikin Ashi close", you are aiming at a price that may not exist. Your order fills at real market prices.
2. Stops: a stop placed below a Heikin Ashi low can sit at the wrong level. The real swing low is the level that matters. Place a stop-loss under real structure on the regular chart.
3. Backtests: a backtest that assumes fills at Heikin Ashi prices will look far better than live trading. Many platforms calculate strategy fills on Heikin Ashi values when the chart is set to Heikin Ashi, which inflates results. Run any backtest on real prices.

A common workflow is to keep two charts side by side: Heikin Ashi for trend reading, and regular candles for orders.

A simple Heikin Ashi strategy for riding trends

Heikin Ashi is a trend tool, so the strategy below is built around trend following rather than picking tops and bottoms. It is an example framework, not a tested system.

1. Define the trend. Price above a rising 50-period moving average favours longs only. Below a falling one favours shorts only.
2. Wait for a pullback. In an uptrend, wait for 1 to 3 red or small-bodied Heikin Ashi candles. Ideally the pullback reaches a support level on the real chart.
3. Enter on the resumption. Enter when a green Heikin Ashi candle with no lower wick prints after the pullback. Take the entry at the real market price.
4. Place the stop on real structure. Put the stop below the real swing low of the pullback. Use the ATR indicator to make sure the stop sits beyond normal noise.
5. Trail with the candles. Stay in while green candles keep printing without lower wicks. Consider exiting or tightening when a candle with wicks on both sides appears, or when 2 red candles close in a row.

Suppose the 4-hour chart is in an uptrend. After 2 red Heikin Ashi candles, a green candle with no lower wick prints. The real market price is 1,000 and the real pullback low is 984, so the stop goes at 980, 20 points below entry. On a $50,000 account risking 0.5% per trade, risk is $250, so position size is $250 / 20 = 12.5 units. Every number in that calculation comes from the real chart.

Momentum indicators can add confirmation. Some traders only take the resumption candle when the MACD histogram is turning back up or the RSI holds above 50.

Best timeframes for Heikin Ashi

Heikin Ashi can be applied to any timeframe, but it adds the most value where trends last long enough to ride.

Limitations of Heikin Ashi

Heikin Ashi helps you stay in trends, but it has real weaknesses.

• Lag: averaging means the colour flips after price has already turned. On a sharp reversal, a lot of the move can be gone before the first opposite candle.
• Synthetic prices: the open and close are not traded prices, as covered above.
• Hidden gaps: a stock that gaps 5% at the open will show no gap on a Heikin Ashi chart.
• Poor in ranges: in sideways markets, colours alternate and produce a string of small losses, much like moving-average crossovers.
• Pattern confusion: classic candlestick patterns and chart patterns are defined on real prices. A Heikin Ashi "hammer" is not the same signal as a real hammer.

Using Heikin Ashi in a prop firm challenge

In a prop challenge, Heikin Ashi can help you avoid cutting winning trends too early and avoid trading against the trend. It does not change how risk is measured. Velotrade, a multi-asset prop trading firm, runs simulated evaluations across crypto, forex, stocks, index ETFs and commodities on DXtrade. Whatever chart type you read, every limit is measured on real account equity, not on chart averages.

Two limits matter most. The daily loss limit resets at 00:30 UTC and is set from the higher of your balance or equity at that time. The maximum drawdown is static: a fixed floor set from your starting balance that never moves. For example, on the CLASSIC 2-Step plan the maximum drawdown is 10% and the daily loss limit is 5%. A trend strategy will hit losing runs in choppy markets, so size each trade so that a string of losses never threatens either limit.

There is no time limit on Velotrade evaluations and weekend holding is allowed, which suits slower 4-hour and daily Heikin Ashi trends. You can compare plans and account sizes on the challenges page.

This article is educational only and is not investment advice.

Sources

• Dan Valcu, "Using the Heikin-Ashi Technique", Technical Analysis of Stocks and Commodities, February 2004: the original Western introduction to the method and its formulas.
• TradingView Help Center, "Understanding Heikin Ashi charts": the 4 formulas and how the chart type differs from regular candles.
• Britannica Money, "Heikin-Ashi candlestick chart": the calculations and reading trend strength from missing wicks.
• Steve Nison, Japanese Candlestick Charting Techniques, 2nd edition, New York Institute of Finance, 2001: regular candlestick construction and pattern definitions on real prices.
• J. Welles Wilder, New Concepts in Technical Trading Systems, 1978: Average True Range, used here for stop placement.