Definition. Annualized Realized Volatility (1 Week) is the standard deviation of BTC returns from the mean return of the market, measured over a rolling 1-week window and annualized.

Technical. Computed on log returns over a fixed time horizon or a rolling window to obtain a time-dependent observable. Realized volatility is calculated from daily returns and multiplied by a factor of sqrt(365) to yield the annualized daily realized volatility. Whereas implied volatility reflects the market's assessment of future volatility, realized volatility measures what happened in the past.

Interpretation. High values indicate a phase of high risk in the market.