90D Volatility Percentile

How to read the 90D Volatility Percentile

The 90-Day Volatility Percentile answers a simple question: how volatile is Bitcoin right now compared to all of its history?

It is computed by calculating the annualised standard deviation of daily log returns over the past 90 days, then ranking that reading as a percentile against every 90-day vol window in Bitcoin's price history. A reading of 70 means current volatility is higher than 70% of all historical readings.

The chart shows the percentile line coloured by zone alongside the BTC price overlay (right axis). Reference lines mark the zone boundaries at the 25th, 50th, and 75th percentiles.

The hero signal shows the underlying annualised volatility as a raw percentage — this is the number used to compute the percentile.

• 0–25th — Calm — Bitcoin's volatility is in the lowest quarter of its historical range. Markets are unusually quiet. These phases have historically appeared during mid-bull accumulation periods, where steady price appreciation occurs without dramatic swings. Calm conditions allow long-term investors to accumulate steadily without the emotional pressure of extreme moves.
• 25th–50th — Normal — Volatility is in its typical historical range — no extremes in either direction. The market is behaving in line with its long-term character. These conditions carry no specific directional signal and are the baseline state for most of Bitcoin's history.
• 50th–75th — Elevated — Volatility is above the historical median. Markets are showing more uncertainty or momentum than usual. This zone has appeared during sharp recoveries, breakout attempts, and early phases of bear markets. It warrants awareness but not alarm.
• 75th–100th — Stress — Volatility is in the top quarter of its entire history. These extreme readings have been associated with major market panics, sharp crashes, and late-cycle mania. While high volatility can occur at both bottoms and tops, it reliably signals that conditions are unusual. Long-term investors often avoid making large new allocations during these periods and wait for conditions to stabilise.

Volatility is a context indicator rather than a directional one — it tells you how extreme market conditions are, not which direction they will move. Use it alongside Drawdown from ATH and Mayer Multiple to distinguish between a stressed market that is cheap vs one that is expensive.