Bitcoin / US Dollar Perpetual Inverse Swap ContractBitMEX
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Increasing and decreasing volatility in respect to ATR crossing an ema of ATR. Ema acts as a proxy for look-back period as per Historical Volatility Percentile. ATR is a proxy for Volatility as per standard deviation. Divergence below ema means low volatility: the more divergence, the lower. Divergence above the ema means high volatility.