24-hour surface comparison
The complete daily Derivasys BTC options surface report archive, with 24-hour ATM IV, RR25, BF25 and fitted-smile changes. Reports from 18 July 2026 also include linked news context.
Reports from 18 July 2026 include contextual news. Earlier reports contain measured surface analysis only.
Daily archive
141 reports
Across the six headline tenors, ATM IV averaged -0.33 volatility points, RR25 +0.77 volatility points and BF25 -0.09 volatility points between the stored endpoints.
Across the six headline tenors, ATM IV averaged -0.80 volatility points, RR25 -0.19 volatility points and BF25 +0.01 volatility points between the stored endpoints.
Across the six headline tenors, ATM IV averaged +0.05 volatility points, RR25 -0.14 volatility points and BF25 -0.01 volatility points between the stored endpoints.
Across the six headline tenors, ATM IV averaged -0.35 volatility points, RR25 -0.66 volatility points and BF25 +0.10 volatility points between the stored endpoints.
Across the six headline tenors, ATM IV averaged +0.11 volatility points, RR25 +0.51 volatility points and BF25 +0.07 volatility points between the stored endpoints.
Across the six headline tenors, ATM IV averaged +0.95 volatility points, RR25 -0.15 volatility points and BF25 +0.00 volatility points between the stored endpoints.
The six headline-tenor averages are unavailable at the comparison endpoints.
The six headline-tenor averages are unavailable at the comparison endpoints.
The six headline-tenor averages are unavailable at the comparison endpoints.
Permanent monthly index
Publication coverage
131 dates from 21 April 2026 through 30 August 2026 passed the snapshot-pair and surface-data checks and have permanent reports.
21 April 2026 omitted: No comparison snapshot exists within three hours of 2026-04-20T23:59:00+00:00
