Heikin-Ashi Charts Explained: Formula and Overview
Learn what Heikin-Ashi charts are, the formula used to calculate them, and how they differ from standard Japanese candlesticks.
- 7 min read
- For beginners
- Educational
- Leçon 5 sur 6
Heikin-Ashi is a modified candlestick charting technique designed to smooth price movement and reduce visual noise compared to standard Japanese candlesticks. This guide explains how it's calculated and its key characteristics.
The formula in this lesson has been verified against multiple technical analysis education sources for accuracy.
What Does 'Heikin-Ashi' Mean?
Heikin-Ashi is a Japanese term generally translated as "average bar" or "average pace." As the name suggests, this technique calculates each candle using averaged price data rather than the raw open, high, low, and close values used in standard candlesticks.
The Heikin-Ashi Formula
Heikin-Ashi candles are calculated using the following formulas: Close = (Open + High + Low + Close) ÷ 4 (the average of the current period's actual OHLC values). Open = (Previous Heikin-Ashi Open + Previous Heikin-Ashi Close) ÷ 2 (the midpoint of the prior Heikin-Ashi candle). High = the maximum of the current period's actual high, the Heikin-Ashi open, or the Heikin-Ashi close. Low = the minimum of the current period's actual low, the Heikin-Ashi open, or the Heikin-Ashi close.
Because Heikin-Ashi open is based on the previous Heikin-Ashi candle, each new candle effectively begins at the midpoint of the one before it, which is part of what creates the smoothed appearance.
Why Heikin-Ashi Charts Look Smoother
Because Heikin-Ashi values are calculated as averages rather than raw prices, the resulting chart tends to show smoother, more continuous-looking candles, with fewer abrupt color changes compared to a standard candlestick chart. This is commonly discussed as making underlying trend direction easier to visually identify.
An Important Limitation
Because Heikin-Ashi candles are calculated values rather than actual traded prices, they do not display the market's real open and close prices for a given period. This means Heikin-Ashi charts are generally not suited for precise entry, exit, or stop-loss price levels based on the candle's displayed values — a limitation worth understanding clearly before using this chart type.
Summary
Heikin-Ashi charts use a modified formula — averaging current period OHLC data for the close, and using the prior candle's midpoint for the open — to produce a smoother-looking chart that can make trend direction easier to visually identify. However, because Heikin-Ashi values are calculated averages rather than actual traded prices, they are generally not suited for precise entry, exit, or stop-loss decisions based on the displayed candle levels.
Frequently Asked Questions
It's a Japanese term generally translated as 'average bar' or 'average pace,' reflecting its use of averaged price data.
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