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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":1791911280167,"availability":"available","unavailableReason":null,"atmIv":{"current":39.26,"previous":41.7,"change":-2.44,"percentChange":-5.85},"rr25":{"current":-0.5,"previous":-0.15,"change":-0.35,"percentChange":-233.33},"bf25":{"current":2.46,"previous":2.57,"change":-0.11,"percentChange":-4.28}},{"tenor":"2W","targetExpiry":1792516080167,"availability":"available","unavailableReason":null,"atmIv":{"current":41.65,"previous":43.45,"change":-1.8,"percentChange":-4.14},"rr25":{"current":-0.45,"previous":-0.4,"change":-0.05,"percentChange":-12.5},"bf25":{"current":2.77,"previous":2.38,"change":0.39,"percentChange":16.39}},{"tenor":"1M","targetExpiry":1793898480167,"availability":"available","unavailableReason":null,"atmIv":{"current":45.69,"previous":46.86,"change":-1.17,"percentChange":-2.5},"rr25":{"current":-1.28,"previous":-0.9,"change":-0.38,"percentChange":-42.22},"bf25":{"current":2.46,"previous":2.54,"change":-0.08,"percentChange":-3.15}},{"tenor":"3M","targetExpiry":1799168880167,"availability":"available","unavailableReason":null,"atmIv":{"current":49.94,"previous":50.73,"change":-0.79,"percentChange":-1.56},"rr25":{"current":-0.7,"previous":-0.41,"change":-0.29,"percentChange":-70.73},"bf25":{"current":3.04,"previous":2.93,"change":0.11,"percentChange":3.75}},{"tenor":"6M","targetExpiry":1807031280167,"availability":"available","unavailableReason":null,"atmIv":{"current":52.29,"previous":52.96,"change":-0.67,"percentChange":-1.27},"rr25":{"current":0.05,"previous":0.18,"change":-0.13,"percentChange":-72.22},"bf25":{"current":3.03,"previous":2.98,"change":0.05,"percentChange":1.68}},{"tenor":"9M","targetExpiry":1814893680167,"availability":"available","unavailableReason":null,"atmIv":{"current":53.5,"previous":53.98,"change":-0.48,"percentChange":-0.89},"rr25":{"current":0.59,"previous":0.59,"change":0,"percentChange":0},"bf25":{"current":2.77,"previous":2.69,"change":0.08,"percentChange":2.97}},{"tenor":"1Y","targetExpiry":1822842480167,"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":55,"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":"2026-10-06T17:08:00+00:00","spotWindowStart":"2026-10-05T17:08:00+00:00","spotMetric":"spot-index return","spotUnit":"percent","spotMove24hPercent":0.08,"rv24hPercent":27.01,"rv7dPercent":35.75,"rv30dPercent":45.6,"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":39.26,"oneWeekIvMinus7dRvPoints":3.51,"oneWeekIvMinus24hRvPoints":12.25,"oneWeekIvMinus30dRvPoints":-6.34,"oneWeekIvTo7dRvRatio":null,"spreadPercentile":null},"realisedVolatilityUnavailableReason":null}