Traders can use the standardized difference to assess how extreme the current price is relative to its long-term trend (200 EMA) while normalizing for volatility.
When the z-score approaches extreme levels (e.g., above 2 or below -2), it may indicate that the asset is overextended in either direction.
Since the indicator identifies when the price deviates far from the 200 EMA (in terms of standard deviations), traders can use it to time mean-reversion trades, buying when the price is below -2 (oversold) and selling when it’s above +2 (overbought).
If the price continues to stay above +2 for extended periods, it could indicate a strong trend, whereas a reversion toward the EMA after reaching +2 or -2 could signal trend exhaustion or reversal.
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in publication is governed by House rules. You can favorite it to use it on a chart.