What you see is a hullMA (user defined length) with 4 percentage bands attached to it. The bands percentage and hullMA length can be adjusted to see how the trading strategy performs. I implemented only long trades with a crossover from one of the lower bands, when it crosses over a high band it exits the trade.
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 publications is governed by House rules. You can favorite it to use it on a chart.
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