{"schemaVersion":1,"asset":"XRP","reportDate":"2026-09-17","timestamps":{"currentSnapshotAt":"2026-09-17T16:39:00+00:00","previousSnapshotAt":"2026-09-16T16:39:00+00:00","generatedAt":"2026-09-17T16:41:14+00:00"},"comparison":{"status":"available","note":null},"provenance":{"reportArtifact":"published daily report","sourceReport":"ALTS","sourceReportHref":"/reports/altcoins/2026-09-17","source":"Stored Derivasys SVI surfaces","comparison":"Latest successful snapshot at or before the common cutoff versus the nearest successful snapshot 24 hours earlier, within a three-hour tolerance.","rrConvention":"25-delta risk reversal","bfConvention":"25-delta butterfly","fixedTenors":"Published ALTS tenor grid","realisedVolatility":null},"tenors":[{"tenor":"1W","targetExpiry":null,"availability":"available","unavailableReason":null,"atmIv":{"current":63.25,"previous":67.54,"change":-4.29,"percentChange":-6.35},"rr25":{"current":5.1,"previous":-0.53,"change":5.63,"percentChange":1062.26},"bf25":{"current":5,"previous":5.03,"change":-0.03,"percentChange":-0.6}},{"tenor":"2W","targetExpiry":null,"availability":"available","unavailableReason":null,"atmIv":{"current":61.26,"previous":63.01,"change":-1.75,"percentChange":-2.78},"rr25":{"current":4.17,"previous":0.53,"change":3.64,"percentChange":686.79},"bf25":{"current":5.35,"previous":5.31,"change":0.04,"percentChange":0.75}},{"tenor":"1M","targetExpiry":null,"availability":"available","unavailableReason":null,"atmIv":{"current":58.68,"previous":59.44,"change":-0.76,"percentChange":-1.28},"rr25":{"current":2.63,"previous":1.37,"change":1.26,"percentChange":91.97},"bf25":{"current":4.97,"previous":5.59,"change":-0.62,"percentChange":-11.09}},{"tenor":"3M","targetExpiry":null,"availability":"available","unavailableReason":null,"atmIv":{"current":56.07,"previous":56.46,"change":-0.39,"percentChange":-0.69},"rr25":{"current":1.9,"previous":3.93,"change":-2.03,"percentChange":-51.65},"bf25":{"current":5.26,"previous":5.37,"change":-0.11,"percentChange":-2.05}},{"tenor":"6M","targetExpiry":null,"availability":"unavailable","unavailableReason":"The target tenor is not bracketed by listed expiries; 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}},{"tenor":"9M","targetExpiry":null,"availability":"unavailable","unavailableReason":"The target tenor is not bracketed by listed expiries; 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}},{"tenor":"1Y","targetExpiry":null,"availability":"unavailable","unavailableReason":"The target tenor is not bracketed by listed expiries; 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":null,"realisedVolatilityUnavailableReason":"Canonical XRP index coverage for 7d is incomplete: expected 10080 one-minute returns, found 10042 (99.6230% coverage); returns spanning missing minutes are excluded"}