{"schemaVersion":1,"asset":"ETH","reportDate":"2026-09-29","timestamps":{"currentSnapshotAt":"2026-09-29T21:59:00+00:00","previousSnapshotAt":"2026-09-28T21:59:00+00:00","generatedAt":"2026-09-29T22:01:15+00:00"},"comparison":{"status":"available","note":null},"provenance":{"reportArtifact":"published daily report","sourceReport":"ETH","sourceReportHref":"/reports/eth/2026-09-29","source":"Derivasys proprietary historical SVI surface and canonical ETH index databases","comparison":"Nearest successful surface snapshots approximately 24 hours apart","rrConvention":"25-delta call IV minus 25-delta put IV","bfConvention":"Average 25-delta wing IV minus ATM forward IV","fixedTenors":"Fixed-tenor measures are published only when listed expiries bracket the target at both comparison snapshots. Targets outside either observable range are suppressed, not extrapolated; headline rankings use only supported tenors.","realisedVolatility":"Annualised root-mean-square of one-minute canonical ETH-USD index log returns using a 365-day basis; all windows end at the current snapshot."},"tenors":[{"tenor":"1W","targetExpiry":1791323940473,"availability":"available","unavailableReason":null,"atmIv":{"current":43.85,"previous":46.37,"change":-2.52,"percentChange":-5.43},"rr25":{"current":-1.59,"previous":-0.38,"change":-1.21,"percentChange":-318.42},"bf25":{"current":2.39,"previous":2.72,"change":-0.33,"percentChange":-12.13}},{"tenor":"2W","targetExpiry":1791928740473,"availability":"available","unavailableReason":null,"atmIv":{"current":44.88,"previous":46.64,"change":-1.76,"percentChange":-3.77},"rr25":{"current":-0.9,"previous":0.1,"change":-1,"percentChange":-1000},"bf25":{"current":2.6,"previous":2.68,"change":-0.08,"percentChange":-2.99}},{"tenor":"1M","targetExpiry":1793311140473,"availability":"available","unavailableReason":null,"atmIv":{"current":47.13,"previous":48.4,"change":-1.27,"percentChange":-2.62},"rr25":{"current":-1.19,"previous":-0.72,"change":-0.47,"percentChange":-65.28},"bf25":{"current":2.33,"previous":2.64,"change":-0.31,"percentChange":-11.74}},{"tenor":"3M","targetExpiry":1798581540473,"availability":"available","unavailableReason":null,"atmIv":{"current":51.53,"previous":51.99,"change":-0.46,"percentChange":-0.88},"rr25":{"current":-0.45,"previous":0.16,"change":-0.61,"percentChange":-381.25},"bf25":{"current":2.95,"previous":2.96,"change":-0.01,"percentChange":-0.34}},{"tenor":"6M","targetExpiry":1806443940473,"availability":"available","unavailableReason":null,"atmIv":{"current":53.33,"previous":53.63,"change":-0.3,"percentChange":-0.56},"rr25":{"current":0.23,"previous":0.58,"change":-0.35,"percentChange":-60.34},"bf25":{"current":3.07,"previous":3.14,"change":-0.07,"percentChange":-2.23}},{"tenor":"9M","targetExpiry":1814306340473,"availability":"available","unavailableReason":null,"atmIv":{"current":54.29,"previous":54.57,"change":-0.28,"percentChange":-0.51},"rr25":{"current":1.01,"previous":1.34,"change":-0.33,"percentChange":-24.63},"bf25":{"current":2.81,"previous":3.02,"change":-0.21,"percentChange":-6.95}},{"tenor":"1Y","targetExpiry":1822255140473,"availability":"unavailable","unavailableReason":"The target tenor falls outside the listed-expiry range at one or both snapshots; extrapolated values are suppressed.","atmIv":{"current":null,"previous":null,"change":null,"percentChange":null},"rr25":{"current":null,"previous":null,"change":null,"percentChange":null},"bf25":{"current":null,"previous":null,"change":null,"percentChange":null}}],"realisedVolatility":{"source":"canonical/ETH-USD-INDEX (DERIBIT and OKX indexes)","fallbackObservations":88,"fallbackPolicy":"Missing canonical minutes use the stored Deribit index first, then the stored OKX index; canonical bars always take precedence.","samplingInterval":"1 minute","annualizationBasis":"365 days","windowEnd":"2026-09-29T21:59:00+00:00","spotWindowStart":"2026-09-28T21:59:00+00:00","spotMetric":"spot-index return","spotUnit":"percent","spotMove24hPercent":0.19,"rv24hPercent":43.29,"rv7dPercent":42.09,"rv30dPercent":47.73,"observations":{"24h":1440,"7d":10080,"30d":43200},"coverage":{"24h":{"status":"complete","observedReturns":1440,"expectedReturns":1440,"coveragePercent":100,"missingPriceMinutes":0,"missingIntervals":0,"largestMissingRunMinutes":0,"unavailableReason":null},"7d":{"status":"complete","observedReturns":10080,"expectedReturns":10080,"coveragePercent":100,"missingPriceMinutes":0,"missingIntervals":0,"largestMissingRunMinutes":0,"unavailableReason":null},"30d":{"status":"complete","observedReturns":43200,"expectedReturns":43200,"coveragePercent":100,"missingPriceMinutes":0,"missingIntervals":0,"largestMissingRunMinutes":0,"unavailableReason":null}},"coveragePolicy":{"version":"observed-minute-returns-v1","minimumCoveragePercent":99.5,"minimumCoveragePercentByWindow":{"24h":99.5,"7d":99.5,"30d":99.5},"maximumMissingRunMinutes":60,"methodology":"Each RV window qualifies independently. RV annualises the mean squared observed one-minute log return; returns spanning gaps are excluded, not interpolated or zero-filled. Partial estimates assume observed minutes are representative and may miss volatility during gaps."},"spotUnavailableReason":null,"oneWeekAtmIvPercent":43.85,"oneWeekIvMinus7dRvPoints":1.76,"oneWeekIvMinus24hRvPoints":0.56,"oneWeekIvMinus30dRvPoints":-3.88,"oneWeekIvTo7dRvRatio":null,"spreadPercentile":null},"realisedVolatilityUnavailableReason":null}