Heiken Ashi RSI falls in the middle: more lag than standard RSI but more directional stability than a simple SMA-smoothed RSI.
The Relative Strength Index (RSI) is a momentum indicator developed by J. Welles Wilder in 1978. It's used to measure the magnitude of recent price changes to determine overbought or oversold conditions.
Most traders and platforms (like TradingView’s community scripts) use the second method: applying RSI to Heiken Ashi price data . The result is an oscillator that appears less erratic, with smoother transitions between overbought and oversold zones.
$$RSI = 100 - \frac1001 + RS$$
