MVRV Z-Score standardizes the Market Cap minus Realized Cap spread by the historical standard deviation of Market Cap. It is the classic formulation, so the numerator is an absolute valuation gap and the denominator is a long-run market-cap volatility scale, not the standard deviation of the MVRV ratio itself.
A rising score means the market-versus-realized gap is widening into historically stretched territory, while a falling score means that gap is compressing. It is useful for judging cross-cycle extremity alongside raw MVRV, Delta, and Realized Price, especially when the goal is regime rarity rather than current profitability alone.
The main limitation is definitional confusion. This is not interchangeable with ratio-deviation variants that z-score MVRV itself. Two charts can both be called “MVRV Z” and still measure different things. For interpretation, the distinction changes the meaning of thresholds, persistence, and cross-cycle comparisons.
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