Volatility
Describe how widely price moves over a given period.
What to notice
ATR is one way to summarize recent true ranges. Bollinger Bands describe how far price is from a moving average in standard-deviation terms.
The context that matters
A larger range can increase both opportunity and uncertainty in a paper setup. Volatility is not a directional prediction.
Common mistake
Comparing raw dollar ranges across BTC, gold and copper without normalizing.
Try it on a chart
Compare the same setup in a quiet period and a high-range period; note different MAE and MFE.
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