Annualized 30-day realized volatility (the standard deviation of daily log returns over a trailing 30 days, ×√365) aligned by coins issued, so you can compare how volatile ZEC and BTC were at equivalent points in their 21M-coin emission schedules. Hover shows the calendar date each chain was at that issuance. Higher = larger daily price swings. Optional 50-week moving average smooths the noise. The time-range filter does not apply.
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