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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":1791477000465,"availability":"available","unavailableReason":null,"atmIv":{"current":41.91,"previous":42.9,"change":-0.99,"percentChange":-2.31},"rr25":{"current":-2.95,"previous":-2.3,"change":-0.65,"percentChange":-28.26},"bf25":{"current":3.05,"previous":2.52,"change":0.53,"percentChange":21.03}},{"tenor":"2W","targetExpiry":1792081800465,"availability":"available","unavailableReason":null,"atmIv":{"current":44.29,"previous":45.28,"change":-0.99,"percentChange":-2.19},"rr25":{"current":-1.32,"previous":-1.56,"change":0.24,"percentChange":15.38},"bf25":{"current":3.16,"previous":2.52,"change":0.64,"percentChange":25.4}},{"tenor":"1M","targetExpiry":1793464200465,"availability":"available","unavailableReason":null,"atmIv":{"current":47.67,"previous":48.28,"change":-0.61,"percentChange":-1.26},"rr25":{"current":-1.46,"previous":-1.07,"change":-0.39,"percentChange":-36.45},"bf25":{"current":2.74,"previous":2.53,"change":0.21,"percentChange":8.3}},{"tenor":"3M","targetExpiry":1798734600465,"availability":"available","unavailableReason":null,"atmIv":{"current":51.51,"previous":51.71,"change":-0.2,"percentChange":-0.39},"rr25":{"current":-0.87,"previous":-0.69,"change":-0.18,"percentChange":-26.09},"bf25":{"current":3.13,"previous":3.11,"change":0.02,"percentChange":0.64}},{"tenor":"6M","targetExpiry":1806597000465,"availability":"available","unavailableReason":null,"atmIv":{"current":53.35,"previous":53.47,"change":-0.12,"percentChange":-0.22},"rr25":{"current":0.02,"previous":-0.02,"change":0.04,"percentChange":200},"bf25":{"current":3.22,"previous":3.08,"change":0.14,"percentChange":4.55}},{"tenor":"9M","targetExpiry":1814459400465,"availability":"available","unavailableReason":null,"atmIv":{"current":54.32,"previous":54.41,"change":-0.09,"percentChange":-0.17},"rr25":{"current":0.86,"previous":0.76,"change":0.1,"percentChange":13.16},"bf25":{"current":3.04,"previous":2.86,"change":0.18,"percentChange":6.29}},{"tenor":"1Y","targetExpiry":1822408200465,"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":"2026-10-01T16:30:00+00:00","spotWindowStart":"2026-09-30T16:30:00+00:00","spotMetric":"spot-index return","spotUnit":"percent","spotMove24hPercent":0.03,"rv24hPercent":39.59,"rv7dPercent":40.46,"rv30dPercent":47.54,"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":41.91,"oneWeekIvMinus7dRvPoints":1.45,"oneWeekIvMinus24hRvPoints":2.32,"oneWeekIvMinus30dRvPoints":-5.63,"oneWeekIvTo7dRvRatio":null,"spreadPercentile":null},"realisedVolatilityUnavailableReason":null}