Heikin-Ashi, also sometimes spelled Heiken-Ashi, means “average bar” in Japanese. The Heikin-Ashi technique can be used in conjunction with candlestick charts when trading securities to spot market trends and predict future prices. It’s useful for making candlestick charts more readable and trends easier to analyze. For example, traders can use Heikin-Ashi charts to know when to stay in trades while a trend persists but get out when the trend pauses or reverses. Most profits are generated when markets are trending, so predicting trends correctly is necessary.

Applying the Heikin Ashi technique to a price chart can help you decide whether to stay in the trade or get out.

Heikin Ashi charts make candlestick charts more readable for traders who want to know when to stay in a trade and ride a strong trend and when to get out when the trend weakens.

Basically, Heikin Ashi is a modified candlestick charting technique that rearranges how the price is displayed so trend traders can have a higher confidence level when deciding whether to remain in a trade or exit.
Some traders, usually longer-term traders, use Heikin Ashi charts as an alternative to traditional Japanese candlestick charts.