IV history

ATM implied volatility over time by tenor bucket — hourly captures from the live chain, extended a month back by reconstructing IV from historical mark prices (Black-Scholes inversion). The percentile shows where today's IV sits in that record.

BTC IV percentile · ~30 DTE

43%

mid-range · 2611 obs · incl. 2.2y reconstructed

IV z-score

-0.44σ

vs its own history

Historical average

39.2%

now 35.8%

Historical range

27.7–76.7%

low–high

~Weekly ATM IV (live)

34.1%

7d realized vol

36.7%

IV − RV (premium)

-2.6 pts

BTC ATM IV

1801 snapshots since 2026-06-22 · ~30 DTE IV percentile 43%

ETH IV percentile · ~30 DTE

40%

mid-range · 2237 obs · incl. 2.2y reconstructed

IV z-score

-0.43σ

vs its own history

Historical average

51.5%

now 48.0%

Historical range

38.7–86.3%

low–high

~Weekly ATM IV (live)

43.2%

7d realized vol

49.0%

IV − RV (premium)

-5.9 pts

ETH ATM IV

1801 snapshots since 2026-06-22 · ~30 DTE IV percentile 40%

Each point is the mean of call/put mark IV at the strike nearest spot, on the listed expiry closest to the 1 / 7 / 30-day target (blank when the chain lists nothing near a target). Collection started 21 Jul 2026 — the chart gets more useful every day.