{
  "schemaVersion": 2,
  "reportDate": "2026-06-23",
  "generatedAt": "2026-07-25T18:42:37+00:00",
  "currentSnapshotAt": "2026-06-23T23:59:00+00:00",
  "previousSnapshotAt": "2026-06-22T23:59:00+00:00",
  "windowHours": 24.0,
  "currency": "BTC",
  "methodology": {
    "source": "Derivasys proprietary historical SVI surface database",
    "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",
    "greeks": "Black forward Greeks for a normalized one-BTC ATM-forward call, zero rate, fitted SVI IV",
    "commentary": "Metrics and takeaways are deterministic. Daily headlines and introductions may be model-assisted, constrained to the same stored facts; weekly prose is deterministic.",
    "fixedTenors": "Fixed-tenor measures are interpolated independently at 1W, 2W, 1M, 3M, 6M, 9M and 1Y; headline rankings prioritise 1W, 2W, 1M, 3M, 6M and 1Y.",
    "smileReconstruction": "Listed-expiry smiles are reconstructed from stored SVI total-variance parameters on a fixed log-moneyness grid.",
    "ultraShortExpiry": "Expiries with fewer than 2 full days remaining stay in detailed tables but are excluded from headline rankings. Settlement proximity, time decay, changing liquidity and fewer quotes can exaggerate their changes.",
    "causalClaims": "The report describes observed surface changes only and does not infer unsupported market drivers, spot moves, flows or forecasts."
  },
  "fitQuality": {
    "currentObjective": 0.03777401,
    "previousObjective": 0.09082601,
    "currentLiveError": 48.23034489,
    "previousLiveError": 63.57475104
  },
  "coverage": {
    "currentListedExpiries": 11,
    "previousListedExpiries": 11,
    "comparedListedExpiries": 10,
    "addedExpiries": [
      "27JUN26"
    ],
    "removedExpiries": [
      "23JUN26"
    ],
    "fixedTenors": [
      "1W",
      "2W",
      "1M",
      "3M",
      "6M",
      "9M",
      "1Y"
    ]
  },
  "commentary": {
    "source": "deterministic",
    "model": null,
    "headline": "BTC daily surface: 2W ATM IV rises 0.85 volatility points",
    "executiveSummary": "Across the six headline tenors, ATM IV averaged +0.46 volatility points, RR25 -0.74 volatility points and BF25 +0.33 volatility points between the stored endpoints.",
    "takeaways": [
      {
        "id": "front-atm",
        "label": "Front end",
        "text": "Front-end ATM IV increased, averaging +0.76 volatility points across 1W, 2W and 1M."
      },
      {
        "id": "back-atm",
        "label": "Long end",
        "text": "Long-dated ATM IV was broadly unchanged, averaging +0.10 volatility points across 6M and 1Y."
      },
      {
        "id": "rr25",
        "label": "Skew",
        "text": "RR25 moved towards puts, averaging -0.74 volatility points across the six headline tenors."
      },
      {
        "id": "bf25",
        "label": "Convexity",
        "text": "BF25 increased, averaging +0.33 volatility points across the six headline tenors."
      },
      {
        "id": "largest-standard-tenor",
        "label": "Largest standard-tenor move",
        "text": "The largest standard-tenor ATM IV move was +0.85 volatility points at 2W.",
        "tenor": "2W",
        "value": 0.85
      }
    ],
    "evidenceIds": [
      "front-atm",
      "back-atm",
      "rr25",
      "bf25",
      "largest-standard-tenor"
    ]
  },
  "newsEvidence": null,
  "facts": [
    {
      "id": "front-atm",
      "label": "Front end",
      "text": "Front-end ATM IV increased, averaging +0.76 volatility points across 1W, 2W and 1M."
    },
    {
      "id": "back-atm",
      "label": "Long end",
      "text": "Long-dated ATM IV was broadly unchanged, averaging +0.10 volatility points across 6M and 1Y."
    },
    {
      "id": "rr25",
      "label": "Skew",
      "text": "RR25 moved towards puts, averaging -0.74 volatility points across the six headline tenors."
    },
    {
      "id": "bf25",
      "label": "Convexity",
      "text": "BF25 increased, averaging +0.33 volatility points across the six headline tenors."
    },
    {
      "id": "largest-standard-tenor",
      "label": "Largest standard-tenor move",
      "text": "The largest standard-tenor ATM IV move was +0.85 volatility points at 2W.",
      "tenor": "2W",
      "value": 0.85
    }
  ],
  "summaryMetrics": {
    "basis": "Average change across 1W, 2W, 1M, 3M, 6M and 1Y",
    "unit": "volatility points",
    "atmIvChange": 0.46,
    "rr25Change": -0.74,
    "bf25Change": 0.33
  },
  "tenors": [
    {
      "tenor": "1W",
      "targetExpiry": 1782863944177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.8,
        "previous": 37.18,
        "change": 0.62,
        "percentChange": 1.67
      },
      "rr25": {
        "current": -8.04,
        "previous": -6.9,
        "change": -1.14,
        "percentChange": -16.52
      },
      "bf25": {
        "current": 3.2,
        "previous": 2.38,
        "change": 0.82,
        "percentChange": 34.45
      }
    },
    {
      "tenor": "2W",
      "targetExpiry": 1783468744177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.8,
        "previous": 36.95,
        "change": 0.85,
        "percentChange": 2.3
      },
      "rr25": {
        "current": -8.55,
        "previous": -7.63,
        "change": -0.92,
        "percentChange": -12.06
      },
      "bf25": {
        "current": 3.11,
        "previous": 2.41,
        "change": 0.7,
        "percentChange": 29.05
      }
    },
    {
      "tenor": "1M",
      "targetExpiry": 1784851144177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 38.11,
        "previous": 37.3,
        "change": 0.81,
        "percentChange": 2.17
      },
      "rr25": {
        "current": -8.38,
        "previous": -7.65,
        "change": -0.73,
        "percentChange": -9.54
      },
      "bf25": {
        "current": 2.94,
        "previous": 2.57,
        "change": 0.37,
        "percentChange": 14.4
      }
    },
    {
      "tenor": "3M",
      "targetExpiry": 1790121544177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 39.04,
        "previous": 38.76,
        "change": 0.28,
        "percentChange": 0.72
      },
      "rr25": {
        "current": -7.5,
        "previous": -6.88,
        "change": -0.62,
        "percentChange": -9.01
      },
      "bf25": {
        "current": 2.92,
        "previous": 2.84,
        "change": 0.08,
        "percentChange": 2.82
      }
    },
    {
      "tenor": "6M",
      "targetExpiry": 1797983944177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 41.73,
        "previous": 41.63,
        "change": 0.1,
        "percentChange": 0.24
      },
      "rr25": {
        "current": -6.07,
        "previous": -5.56,
        "change": -0.51,
        "percentChange": -9.17
      },
      "bf25": {
        "current": 3.07,
        "previous": 3.02,
        "change": 0.05,
        "percentChange": 1.66
      }
    },
    {
      "tenor": "9M",
      "targetExpiry": 1805846344177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 42.71,
        "previous": 42.62,
        "change": 0.09,
        "percentChange": 0.21
      },
      "rr25": {
        "current": -5.19,
        "previous": -4.67,
        "change": -0.52,
        "percentChange": -11.13
      },
      "bf25": {
        "current": 3.11,
        "previous": 3.13,
        "change": -0.02,
        "percentChange": -0.64
      }
    },
    {
      "tenor": "1Y",
      "targetExpiry": 1813795144177,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 43.2,
        "previous": 43.11,
        "change": 0.09,
        "percentChange": 0.21
      },
      "rr25": {
        "current": -4.76,
        "previous": -4.22,
        "change": -0.54,
        "percentChange": -12.8
      },
      "bf25": {
        "current": 3.12,
        "previous": 3.18,
        "change": -0.06,
        "percentChange": -1.89
      }
    }
  ],
  "listedExpiries": [
    {
      "label": "24JUN26",
      "expiry": 1782288000000,
      "tauYears": 0.00091524,
      "daysToExpiry": 0.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 62663.06,
        "previous": 63964.44,
        "change": -1301.38,
        "percentChange": -2.03
      },
      "atmIv": {
        "current": 33.81,
        "previous": 37.47,
        "change": -3.66,
        "percentChange": -9.77
      },
      "rr25": {
        "current": -6.0,
        "previous": -4.84,
        "change": -1.16,
        "percentChange": -23.97
      },
      "bf25": {
        "current": 1.88,
        "previous": 1.58,
        "change": 0.3,
        "percentChange": 18.99
      },
      "svi": {
        "a": {
          "current": -0.0075,
          "previous": -0.0451,
          "change": 0.0375,
          "percentChange": 83.28
        },
        "b": {
          "current": 0.0414,
          "previous": 0.0907,
          "change": -0.0493,
          "percentChange": -54.39
        },
        "rho": {
          "current": -0.2634,
          "previous": -0.2517,
          "change": -0.0117,
          "percentChange": -4.65
        },
        "m": {
          "current": -0.0392,
          "previous": -0.1087,
          "change": 0.0695,
          "percentChange": 63.91
        },
        "sigma": {
          "current": 0.191,
          "previous": 0.5185,
          "change": -0.3275,
          "percentChange": -63.16
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          307.944,
          296.025,
          283.8227,
          271.3265,
          258.5267,
          245.4154,
          231.9866,
          218.2377,
          204.1708,
          189.7939,
          175.1232,
          160.1854,
          145.0204,
          129.6857,
          114.2611,
          98.8582,
          83.6374,
          68.8463,
          54.9112,
          42.6657,
          33.8309,
          31.1205,
          35.5801,
          44.7834,
          56.1506,
          68.3543,
          80.7986,
          93.2052,
          105.4365,
          117.4224,
          129.1284,
          140.5397,
          151.6529,
          162.4713,
          173.0024,
          183.2559,
          193.243,
          202.9753,
          212.4644,
          221.722,
          230.7595
        ],
        "previous": [
          160.7069,
          153.7728,
          146.8225,
          139.8619,
          132.898,
          125.9385,
          118.9922,
          112.0696,
          105.1827,
          98.3458,
          91.5762,
          84.8949,
          78.3285,
          71.9107,
          65.6857,
          59.7121,
          54.069,
          48.8634,
          44.2389,
          40.3806,
          37.5061,
          35.8296,
          35.4953,
          36.5122,
          38.7461,
          41.9759,
          45.966,
          50.5118,
          55.4537,
          60.6734,
          66.0851,
          71.6266,
          77.2528,
          82.9303,
          88.6344,
          94.3466,
          100.0526,
          105.7418,
          111.4056,
          117.0377,
          122.6329
        ],
        "change": [
          147.2371,
          142.2522,
          137.0002,
          131.4646,
          125.6287,
          119.4769,
          112.9944,
          106.1681,
          98.9881,
          91.4481,
          83.547,
          75.2905,
          66.6919,
          57.775,
          48.5754,
          39.1461,
          29.5684,
          19.9829,
          10.6723,
          2.2851,
          -3.6752,
          -4.7091,
          0.0848,
          8.2712,
          17.4045,
          26.3784,
          34.8326,
          42.6934,
          49.9828,
          56.749,
          63.0433,
          68.9131,
          74.4001,
          79.541,
          84.368,
          88.9093,
          93.1904,
          97.2335,
          101.0588,
          104.6843,
          108.1266
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 47.638,
        "rotation": -20.504,
        "wingChange": 76.97,
        "rmsChange": 81.512
      }
    },
    {
      "label": "25JUN26",
      "expiry": 1782374400000,
      "tauYears": 0.00365496,
      "daysToExpiry": 1.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 62667.21,
        "previous": 63967.79,
        "change": -1300.58,
        "percentChange": -2.03
      },
      "atmIv": {
        "current": 37.76,
        "previous": 36.64,
        "change": 1.12,
        "percentChange": 3.06
      },
      "rr25": {
        "current": -3.84,
        "previous": -5.52,
        "change": 1.68,
        "percentChange": 30.43
      },
      "bf25": {
        "current": 2.78,
        "previous": 1.8,
        "change": 0.98,
        "percentChange": 54.44
      },
      "svi": {
        "a": {
          "current": -0.0184,
          "previous": -0.0548,
          "change": 0.0364,
          "percentChange": 66.4
        },
        "b": {
          "current": 0.0751,
          "previous": 0.1081,
          "change": -0.033,
          "percentChange": -30.54
        },
        "rho": {
          "current": -0.0244,
          "previous": -0.2805,
          "change": 0.2561,
          "percentChange": 91.3
        },
        "m": {
          "current": 0.0049,
          "previous": -0.1217,
          "change": 0.1267,
          "percentChange": 104.04
        },
        "sigma": {
          "current": 0.252,
          "previous": 0.5354,
          "change": -0.2834,
          "percentChange": -52.93
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          180.0665,
          173.1975,
          166.2006,
          159.074,
          151.8168,
          144.4295,
          136.9139,
          129.2741,
          121.5173,
          113.6542,
          105.701,
          97.6811,
          89.6275,
          81.5876,
          73.6291,
          65.8502,
          58.3959,
          51.4822,
          45.4291,
          40.6858,
          37.795,
          37.2125,
          39.0377,
          42.9386,
          48.3743,
          54.8395,
          61.9567,
          69.4685,
          77.2033,
          85.0464,
          92.9202,
          100.7714,
          108.5631,
          116.2698,
          123.8741,
          131.3643,
          138.7328,
          145.9752,
          153.0895,
          160.0753,
          166.9333
        ],
        "previous": [
          134.7203,
          129.1031,
          123.4822,
          117.863,
          112.2517,
          106.6552,
          101.0815,
          95.5399,
          90.0408,
          84.5968,
          79.2227,
          73.9364,
          68.7599,
          63.7205,
          58.8524,
          54.1995,
          49.8176,
          45.7782,
          42.1711,
          39.1049,
          36.7013,
          35.0805,
          34.3355,
          34.5033,
          35.5509,
          37.3843,
          39.8755,
          42.8913,
          46.3114,
          50.0363,
          53.987,
          58.1029,
          62.3376,
          66.6558,
          71.0303,
          75.4405,
          79.8703,
          84.307,
          88.741,
          93.1644,
          97.5711
        ],
        "change": [
          45.3462,
          44.0944,
          42.7184,
          41.211,
          39.5651,
          37.7743,
          35.8324,
          33.7342,
          31.4765,
          29.0574,
          26.4783,
          23.7447,
          20.8676,
          17.8671,
          14.7767,
          11.6507,
          8.5783,
          5.704,
          3.258,
          1.5809,
          1.0937,
          2.132,
          4.7022,
          8.4353,
          12.8234,
          17.4552,
          22.0812,
          26.5772,
          30.8919,
          35.0101,
          38.9332,
          42.6685,
          46.2255,
          49.614,
          52.8438,
          55.9238,
          58.8625,
          61.6682,
          64.3485,
          66.9109,
          69.3622
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 22.168,
        "rotation": 12.455,
        "wingChange": 31.612,
        "rmsChange": 36.878
      }
    },
    {
      "label": "26JUN26",
      "expiry": 1782460800000,
      "tauYears": 0.00639469,
      "daysToExpiry": 2.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62677.6,
        "previous": 63957.69,
        "change": -1280.09,
        "percentChange": -2.0
      },
      "atmIv": {
        "current": 38.23,
        "previous": 37.37,
        "change": 0.86,
        "percentChange": 2.3
      },
      "rr25": {
        "current": -4.63,
        "previous": -4.49,
        "change": -0.14,
        "percentChange": -3.12
      },
      "bf25": {
        "current": 2.77,
        "previous": 2.09,
        "change": 0.68,
        "percentChange": 32.54
      },
      "svi": {
        "a": {
          "current": -0.0201,
          "previous": -0.0682,
          "change": 0.0481,
          "percentChange": 70.54
        },
        "b": {
          "current": 0.0784,
          "previous": 0.1263,
          "change": -0.0479,
          "percentChange": -37.95
        },
        "rho": {
          "current": 0.0152,
          "previous": -0.1425,
          "change": 0.1577,
          "percentChange": 110.68
        },
        "m": {
          "current": 0.0223,
          "previous": -0.0521,
          "change": 0.0744,
          "percentChange": 142.74
        },
        "sigma": {
          "current": 0.2675,
          "previous": 0.5545,
          "change": -0.287,
          "percentChange": -51.76
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          139.0788,
          134.0514,
          128.9412,
          123.7484,
          118.4737,
          113.1192,
          107.6881,
          102.1858,
          96.6198,
          91.001,
          85.3446,
          79.6712,
          74.0094,
          68.3977,
          62.889,
          57.5555,
          52.4958,
          47.8434,
          43.7741,
          40.5065,
          38.2818,
          37.312,
          37.7067,
          39.4248,
          42.2937,
          46.0787,
          50.5475,
          55.5045,
          60.7974,
          66.3122,
          71.9651,
          77.6944,
          83.4546,
          89.2124,
          94.943,
          100.6284,
          106.2553,
          111.8143,
          117.2987,
          122.7041,
          128.0275
        ],
        "previous": [
          119.5509,
          114.7672,
          109.9755,
          105.1805,
          100.3879,
          95.6045,
          90.8379,
          86.0974,
          81.3937,
          76.7401,
          72.1523,
          67.6494,
          63.2552,
          58.9989,
          54.9169,
          51.0548,
          47.4689,
          44.2277,
          41.4123,
          39.1133,
          37.4227,
          36.4204,
          36.1571,
          36.6408,
          37.8336,
          39.6619,
          42.0323,
          44.8484,
          48.021,
          51.4737,
          55.1436,
          58.9799,
          62.9424,
          66.9994,
          71.1258,
          75.3014,
          79.5103,
          83.7398,
          87.9795,
          92.221,
          96.4576
        ],
        "change": [
          19.5279,
          19.2842,
          18.9657,
          18.5679,
          18.0858,
          17.5147,
          16.8502,
          16.0884,
          15.2261,
          14.2609,
          13.1923,
          12.0218,
          10.7542,
          9.3988,
          7.9721,
          6.5007,
          5.0269,
          3.6157,
          2.3618,
          1.3932,
          0.8591,
          0.8916,
          1.5496,
          2.784,
          4.4601,
          6.4168,
          8.5152,
          10.6561,
          12.7764,
          14.8385,
          16.8215,
          18.7145,
          20.5122,
          22.213,
          23.8172,
          25.327,
          26.745,
          28.0745,
          29.3192,
          30.4831,
          31.5699
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 10.291,
        "rotation": 3.629,
        "wingChange": 14.148,
        "rmsChange": 16.697
      }
    },
    {
      "label": "3JUL26",
      "expiry": 1783065600000,
      "tauYears": 0.02557277,
      "daysToExpiry": 9.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62702.72,
        "previous": 63991.56,
        "change": -1288.84,
        "percentChange": -2.01
      },
      "atmIv": {
        "current": 37.85,
        "previous": 37.12,
        "change": 0.73,
        "percentChange": 1.97
      },
      "rr25": {
        "current": -8.41,
        "previous": -7.61,
        "change": -0.8,
        "percentChange": -10.51
      },
      "bf25": {
        "current": 3.25,
        "previous": 2.45,
        "change": 0.8,
        "percentChange": 32.65
      },
      "svi": {
        "a": {
          "current": -0.0309,
          "previous": -0.066,
          "change": 0.0352,
          "percentChange": 53.24
        },
        "b": {
          "current": 0.1074,
          "previous": 0.1301,
          "change": -0.0227,
          "percentChange": -17.44
        },
        "rho": {
          "current": 0.0161,
          "previous": -0.1097,
          "change": 0.1257,
          "percentChange": 114.65
        },
        "m": {
          "current": 0.0639,
          "previous": 0.018,
          "change": 0.0459,
          "percentChange": 254.26
        },
        "sigma": {
          "current": 0.3166,
          "previous": 0.5357,
          "change": -0.2191,
          "percentChange": -40.89
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          89.0857,
          86.4609,
          83.8079,
          81.1281,
          78.4233,
          75.6958,
          72.9489,
          70.1865,
          67.4136,
          64.6365,
          61.8631,
          59.1032,
          56.369,
          53.6752,
          51.0401,
          48.4857,
          46.0386,
          43.7302,
          41.5973,
          39.6815,
          38.0285,
          36.6853,
          35.6965,
          35.0997,
          34.92,
          35.1659,
          35.828,
          36.8806,
          38.2857,
          39.9987,
          41.9727,
          44.1624,
          46.5266,
          49.0288,
          51.6378,
          54.3271,
          57.0749,
          59.8629,
          62.6764,
          65.5031,
          68.3333
        ],
        "previous": [
          83.0603,
          80.4848,
          77.9059,
          75.3261,
          72.7487,
          70.1771,
          67.6155,
          65.0686,
          62.5417,
          60.0411,
          57.5739,
          55.1484,
          52.7738,
          50.4612,
          48.223,
          46.0733,
          44.0284,
          42.1063,
          40.3273,
          38.713,
          37.2867,
          36.0715,
          35.0899,
          34.3618,
          33.9026,
          33.7217,
          33.8215,
          34.1968,
          34.8354,
          35.7195,
          36.8273,
          38.135,
          39.6184,
          41.2539,
          43.0193,
          44.8948,
          46.8624,
          48.9065,
          51.0133,
          53.1712,
          55.37
        ],
        "change": [
          6.0254,
          5.9761,
          5.902,
          5.802,
          5.6746,
          5.5187,
          5.3334,
          5.1179,
          4.8719,
          4.5954,
          4.2892,
          3.9548,
          3.5952,
          3.214,
          2.8171,
          2.4124,
          2.0102,
          1.6239,
          1.27,
          0.9685,
          0.7418,
          0.6138,
          0.6066,
          0.7379,
          1.0174,
          1.4442,
          2.0065,
          2.6838,
          3.4503,
          4.2792,
          5.1454,
          6.0274,
          6.9082,
          7.7749,
          8.6185,
          9.4323,
          10.2125,
          10.9564,
          11.6631,
          12.3319,
          12.9633
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 3.392,
        "rotation": 0.856,
        "wingChange": 3.976,
        "rmsChange": 5.935
      }
    },
    {
      "label": "10JUL26",
      "expiry": 1783670400000,
      "tauYears": 0.04475085,
      "daysToExpiry": 16.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62731.7,
        "previous": 64025.43,
        "change": -1293.73,
        "percentChange": -2.02
      },
      "atmIv": {
        "current": 37.78,
        "previous": 36.86,
        "change": 0.92,
        "percentChange": 2.5
      },
      "rr25": {
        "current": -8.59,
        "previous": -7.64,
        "change": -0.95,
        "percentChange": -12.43
      },
      "bf25": {
        "current": 3.09,
        "previous": 2.38,
        "change": 0.71,
        "percentChange": 29.83
      },
      "svi": {
        "a": {
          "current": -0.0558,
          "previous": -0.0748,
          "change": 0.019,
          "percentChange": 25.42
        },
        "b": {
          "current": 0.1391,
          "previous": 0.1402,
          "change": -0.0011,
          "percentChange": -0.82
        },
        "rho": {
          "current": -0.0101,
          "previous": -0.0375,
          "change": 0.0275,
          "percentChange": 73.17
        },
        "m": {
          "current": 0.0813,
          "previous": 0.0794,
          "change": 0.0019,
          "percentChange": 2.45
        },
        "sigma": {
          "current": 0.4393,
          "previous": 0.5713,
          "change": -0.1321,
          "percentChange": -23.12
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          75.7231,
          73.6695,
          71.6075,
          69.5388,
          67.4657,
          65.3909,
          63.3176,
          61.2492,
          59.1902,
          57.1454,
          55.1205,
          53.1223,
          51.1584,
          49.2376,
          47.37,
          45.5672,
          43.8421,
          42.2093,
          40.6847,
          39.2857,
          38.0304,
          36.9377,
          36.0258,
          35.3118,
          34.81,
          34.5312,
          34.4817,
          34.6622,
          35.0685,
          35.6912,
          36.5169,
          37.5294,
          38.7106,
          40.0418,
          41.5045,
          43.081,
          44.7547,
          46.5105,
          48.3351,
          50.2163,
          52.1436
        ],
        "previous": [
          70.1814,
          68.3171,
          66.4529,
          64.5908,
          62.733,
          60.8821,
          59.0408,
          57.2124,
          55.4006,
          53.6094,
          51.8435,
          50.108,
          48.409,
          46.7529,
          45.147,
          43.5995,
          42.1195,
          40.7166,
          39.4015,
          38.1855,
          37.0803,
          36.098,
          35.2503,
          34.5486,
          34.0028,
          33.6211,
          33.4095,
          33.371,
          33.506,
          33.8114,
          34.2817,
          34.9088,
          35.6827,
          36.5923,
          37.6255,
          38.7703,
          40.0146,
          41.347,
          42.7567,
          44.2337,
          45.7689
        ],
        "change": [
          5.5417,
          5.3524,
          5.1546,
          4.948,
          4.7327,
          4.5088,
          4.2768,
          4.0368,
          3.7896,
          3.536,
          3.277,
          3.0143,
          2.7494,
          2.4847,
          2.223,
          1.9677,
          1.7226,
          1.4927,
          1.2832,
          1.1002,
          0.9501,
          0.8397,
          0.7755,
          0.7632,
          0.8072,
          0.9101,
          1.0722,
          1.2912,
          1.5625,
          1.8798,
          2.2352,
          2.6206,
          3.0279,
          3.4495,
          3.879,
          4.3107,
          4.7401,
          5.1635,
          5.5784,
          5.9826,
          6.3747
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 2.154,
        "rotation": -1.042,
        "wingChange": 1.806,
        "rmsChange": 3.497
      }
    },
    {
      "label": "31JUL26",
      "expiry": 1785484800000,
      "tauYears": 0.1022851,
      "daysToExpiry": 37.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62802.87,
        "previous": 64139.22,
        "change": -1336.35,
        "percentChange": -2.08
      },
      "atmIv": {
        "current": 38.19,
        "previous": 37.43,
        "change": 0.76,
        "percentChange": 2.03
      },
      "rr25": {
        "current": -8.34,
        "previous": -7.66,
        "change": -0.68,
        "percentChange": -8.88
      },
      "bf25": {
        "current": 2.9,
        "previous": 2.62,
        "change": 0.28,
        "percentChange": 10.69
      },
      "svi": {
        "a": {
          "current": -0.0854,
          "previous": -0.0721,
          "change": -0.0133,
          "percentChange": -18.37
        },
        "b": {
          "current": 0.1803,
          "previous": 0.1669,
          "change": 0.0134,
          "percentChange": 8.05
        },
        "rho": {
          "current": 0.0775,
          "previous": 0.1281,
          "change": -0.0506,
          "percentChange": -39.52
        },
        "m": {
          "current": 0.173,
          "previous": 0.1945,
          "change": -0.0215,
          "percentChange": -11.04
        },
        "sigma": {
          "current": 0.5446,
          "previous": 0.5113,
          "change": 0.0333,
          "percentChange": 6.51
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          60.9933,
          59.7402,
          58.4881,
          57.2384,
          55.9923,
          54.7516,
          53.5179,
          52.2932,
          51.0797,
          49.8798,
          48.6962,
          47.5318,
          46.39,
          45.2744,
          44.1888,
          43.1375,
          42.1251,
          41.1566,
          40.2372,
          39.3725,
          38.5681,
          37.83,
          37.1641,
          36.5762,
          36.0719,
          35.6565,
          35.3344,
          35.1097,
          34.9854,
          34.9634,
          35.0447,
          35.229,
          35.515,
          35.9001,
          36.3811,
          36.9539,
          37.6134,
          38.3545,
          39.1715,
          40.0586,
          41.01
        ],
        "previous": [
          58.5297,
          57.3751,
          56.2209,
          55.0683,
          53.9185,
          52.773,
          51.6333,
          50.5013,
          49.379,
          48.2687,
          47.1727,
          46.094,
          45.0356,
          44.0008,
          42.9933,
          42.0172,
          41.0768,
          40.1769,
          39.3224,
          38.5187,
          37.7712,
          37.0856,
          36.4678,
          35.9233,
          35.4577,
          35.0761,
          34.7833,
          34.5831,
          34.4788,
          34.4725,
          34.5655,
          34.7577,
          35.0483,
          35.4351,
          35.9152,
          36.4847,
          37.1392,
          37.8736,
          38.6826,
          39.5607,
          40.5022
        ],
        "change": [
          2.4636,
          2.3651,
          2.2672,
          2.1701,
          2.0738,
          1.9786,
          1.8846,
          1.7919,
          1.7007,
          1.6111,
          1.5235,
          1.4378,
          1.3544,
          1.2736,
          1.1955,
          1.1203,
          1.0483,
          0.9797,
          0.9148,
          0.8538,
          0.7969,
          0.7444,
          0.6963,
          0.6529,
          0.6142,
          0.5804,
          0.5511,
          0.5266,
          0.5066,
          0.4909,
          0.4792,
          0.4713,
          0.4667,
          0.465,
          0.4659,
          0.4692,
          0.4742,
          0.4809,
          0.4889,
          0.4979,
          0.5078
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.933,
        "rotation": -1.044,
        "wingChange": 0.204,
        "rmsChange": 1.235
      }
    },
    {
      "label": "28AUG26",
      "expiry": 1787904000000,
      "tauYears": 0.17899742,
      "daysToExpiry": 65.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 63009.09,
        "previous": 64347.12,
        "change": -1338.03,
        "percentChange": -2.08
      },
      "atmIv": {
        "current": 38.78,
        "previous": 38.18,
        "change": 0.6,
        "percentChange": 1.57
      },
      "rr25": {
        "current": -8.0,
        "previous": -7.31,
        "change": -0.69,
        "percentChange": -9.44
      },
      "bf25": {
        "current": 2.86,
        "previous": 2.69,
        "change": 0.17,
        "percentChange": 6.32
      },
      "svi": {
        "a": {
          "current": -0.1121,
          "previous": -0.1172,
          "change": 0.0051,
          "percentChange": 4.38
        },
        "b": {
          "current": 0.2078,
          "previous": 0.2058,
          "change": 0.002,
          "percentChange": 0.99
        },
        "rho": {
          "current": 0.0114,
          "previous": 0.0013,
          "change": 0.01,
          "percentChange": 748.64
        },
        "m": {
          "current": 0.1799,
          "previous": 0.1677,
          "change": 0.0122,
          "percentChange": 7.3
        },
        "sigma": {
          "current": 0.6499,
          "previous": 0.6813,
          "change": -0.0315,
          "percentChange": -4.62
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          55.2538,
          54.3376,
          53.426,
          52.5199,
          51.6201,
          50.7279,
          49.8444,
          48.9708,
          48.1085,
          47.2589,
          46.4236,
          45.6042,
          44.8026,
          44.0205,
          43.26,
          42.5231,
          41.812,
          41.1289,
          40.4762,
          39.8563,
          39.2716,
          38.7245,
          38.2175,
          37.7529,
          37.3331,
          36.9603,
          36.6365,
          36.3635,
          36.143,
          35.9763,
          35.8646,
          35.8084,
          35.8083,
          35.8642,
          35.976,
          36.1428,
          36.3637,
          36.6375,
          36.9626,
          37.3372,
          37.7593
        ],
        "previous": [
          53.8485,
          52.9608,
          52.0786,
          51.203,
          50.3349,
          49.4755,
          48.6259,
          47.7874,
          46.9613,
          46.149,
          45.3521,
          44.5722,
          43.8109,
          43.0701,
          42.3517,
          41.6577,
          40.99,
          40.3508,
          39.7422,
          39.1665,
          38.6258,
          38.1223,
          37.6583,
          37.2358,
          36.8568,
          36.5232,
          36.2367,
          35.999,
          35.8112,
          35.6745,
          35.5896,
          35.5571,
          35.5771,
          35.6496,
          35.7741,
          35.9499,
          36.176,
          36.4511,
          36.7738,
          37.1424,
          37.5551
        ],
        "change": [
          1.4053,
          1.3768,
          1.3474,
          1.3169,
          1.2852,
          1.2524,
          1.2185,
          1.1834,
          1.1472,
          1.1099,
          1.0715,
          1.032,
          0.9917,
          0.9504,
          0.9083,
          0.8654,
          0.822,
          0.7781,
          0.734,
          0.6898,
          0.6458,
          0.6022,
          0.5592,
          0.5171,
          0.4763,
          0.4371,
          0.3998,
          0.3645,
          0.3318,
          0.3018,
          0.275,
          0.2513,
          0.2312,
          0.2146,
          0.2019,
          0.1929,
          0.1877,
          0.1864,
          0.1888,
          0.1948,
          0.2042
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.664,
        "rotation": -0.796,
        "wingChange": 0.027,
        "rmsChange": 0.809
      }
    },
    {
      "label": "25SEP26",
      "expiry": 1790323200000,
      "tauYears": 0.25570975,
      "daysToExpiry": 93.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 63231.32,
        "previous": 64559.53,
        "change": -1328.21,
        "percentChange": -2.06
      },
      "atmIv": {
        "current": 39.06,
        "previous": 38.81,
        "change": 0.25,
        "percentChange": 0.64
      },
      "rr25": {
        "current": -7.47,
        "previous": -6.84,
        "change": -0.63,
        "percentChange": -9.21
      },
      "bf25": {
        "current": 2.91,
        "previous": 2.86,
        "change": 0.05,
        "percentChange": 1.75
      },
      "svi": {
        "a": {
          "current": -0.1738,
          "previous": -0.135,
          "change": -0.0387,
          "percentChange": -28.7
        },
        "b": {
          "current": 0.2529,
          "previous": 0.2294,
          "change": 0.0235,
          "percentChange": 10.23
        },
        "rho": {
          "current": -0.1115,
          "previous": -0.0999,
          "change": -0.0116,
          "percentChange": -11.57
        },
        "m": {
          "current": 0.1065,
          "previous": 0.1091,
          "change": -0.0025,
          "percentChange": -2.34
        },
        "sigma": {
          "current": 0.8271,
          "previous": 0.7438,
          "change": 0.0833,
          "percentChange": 11.2
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          52.6117,
          51.8362,
          51.0683,
          50.3089,
          49.5587,
          48.8186,
          48.0895,
          47.3723,
          46.668,
          45.9776,
          45.3021,
          44.6427,
          44.0004,
          43.3765,
          42.772,
          42.1883,
          41.6265,
          41.0879,
          40.5736,
          40.0851,
          39.6234,
          39.1897,
          38.7853,
          38.4112,
          38.0685,
          37.7582,
          37.4811,
          37.238,
          37.0298,
          36.8568,
          36.7196,
          36.6185,
          36.5537,
          36.5252,
          36.5329,
          36.5765,
          36.6557,
          36.7699,
          36.9185,
          37.1008,
          37.3159
        ],
        "previous": [
          51.7197,
          50.9741,
          50.2358,
          49.5058,
          48.7847,
          48.0736,
          47.3733,
          46.6848,
          46.0092,
          45.3475,
          44.7008,
          44.0703,
          43.4571,
          42.8625,
          42.2877,
          41.7341,
          41.2028,
          40.6951,
          40.2124,
          39.756,
          39.327,
          38.9267,
          38.5562,
          38.2168,
          37.9093,
          37.6348,
          37.394,
          37.1878,
          37.0168,
          36.8813,
          36.7818,
          36.7185,
          36.6913,
          36.7003,
          36.7451,
          36.8253,
          36.9404,
          37.0897,
          37.2726,
          37.4879,
          37.7349
        ],
        "change": [
          0.892,
          0.8621,
          0.8325,
          0.8031,
          0.774,
          0.745,
          0.7162,
          0.6875,
          0.6588,
          0.6301,
          0.6013,
          0.5724,
          0.5433,
          0.514,
          0.4843,
          0.4542,
          0.4237,
          0.3928,
          0.3612,
          0.3291,
          0.2964,
          0.263,
          0.2291,
          0.1944,
          0.1592,
          0.1234,
          0.0871,
          0.0502,
          0.013,
          -0.0245,
          -0.0622,
          -0.1,
          -0.1376,
          -0.1751,
          -0.2122,
          -0.2488,
          -0.2847,
          -0.3198,
          -0.3541,
          -0.3871,
          -0.419
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.279,
        "rotation": -0.663,
        "wingChange": -0.027,
        "rmsChange": 0.474
      }
    },
    {
      "label": "25DEC26",
      "expiry": 1798185600000,
      "tauYears": 0.50502482,
      "daysToExpiry": 184.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 63864.32,
        "previous": 65199.7,
        "change": -1335.38,
        "percentChange": -2.05
      },
      "atmIv": {
        "current": 41.76,
        "previous": 41.68,
        "change": 0.08,
        "percentChange": 0.19
      },
      "rr25": {
        "current": -6.06,
        "previous": -5.53,
        "change": -0.53,
        "percentChange": -9.58
      },
      "bf25": {
        "current": 3.08,
        "previous": 3.03,
        "change": 0.05,
        "percentChange": 1.65
      },
      "svi": {
        "a": {
          "current": -0.2496,
          "previous": -0.2161,
          "change": -0.0335,
          "percentChange": -15.52
        },
        "b": {
          "current": 0.3405,
          "previous": 0.3167,
          "change": 0.0237,
          "percentChange": 7.49
        },
        "rho": {
          "current": -0.3357,
          "previous": -0.2997,
          "change": -0.036,
          "percentChange": -12.02
        },
        "m": {
          "current": -0.1179,
          "previous": -0.0773,
          "change": -0.0406,
          "percentChange": -52.52
        },
        "sigma": {
          "current": 1.0335,
          "previous": 0.9896,
          "change": 0.0439,
          "percentChange": 4.44
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          50.4465,
          49.9406,
          49.4437,
          48.9564,
          48.4789,
          48.0116,
          47.5549,
          47.1092,
          46.6748,
          46.2521,
          45.8415,
          45.4433,
          45.0578,
          44.6855,
          44.3266,
          43.9814,
          43.6502,
          43.3334,
          43.0312,
          42.7438,
          42.4715,
          42.2145,
          41.973,
          41.7472,
          41.5371,
          41.343,
          41.1649,
          41.0028,
          40.857,
          40.7272,
          40.6137,
          40.5162,
          40.4348,
          40.3693,
          40.3198,
          40.2859,
          40.2676,
          40.2646,
          40.2768,
          40.304,
          40.3458
        ],
        "previous": [
          49.8891,
          49.4065,
          48.9327,
          48.4682,
          48.0132,
          47.5682,
          47.1335,
          46.7096,
          46.2968,
          45.8955,
          45.5061,
          45.1289,
          44.7642,
          44.4125,
          44.0741,
          43.7492,
          43.4383,
          43.1415,
          42.8592,
          42.5916,
          42.339,
          42.1016,
          41.8795,
          41.673,
          41.4821,
          41.3071,
          41.1479,
          41.0047,
          40.8775,
          40.7664,
          40.6712,
          40.5919,
          40.5286,
          40.481,
          40.4491,
          40.4327,
          40.4317,
          40.4458,
          40.4748,
          40.5185,
          40.5766
        ],
        "change": [
          0.5574,
          0.5341,
          0.511,
          0.4882,
          0.4657,
          0.4434,
          0.4214,
          0.3996,
          0.378,
          0.3566,
          0.3354,
          0.3144,
          0.2936,
          0.273,
          0.2525,
          0.2322,
          0.2119,
          0.1919,
          0.172,
          0.1522,
          0.1325,
          0.1129,
          0.0935,
          0.0742,
          0.055,
          0.0359,
          0.017,
          -0.0019,
          -0.0205,
          -0.0392,
          -0.0575,
          -0.0757,
          -0.0938,
          -0.1117,
          -0.1293,
          -0.1468,
          -0.1641,
          -0.1812,
          -0.198,
          -0.2145,
          -0.2308
        ],
        "classification": [
          "limited movement"
        ],
        "parallelShift": 0.137,
        "rotation": -0.393,
        "wingChange": 0.006,
        "rmsChange": 0.273
      }
    },
    {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "tauYears": 0.75433988,
      "daysToExpiry": 275.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 64525.61,
        "previous": 65892.28,
        "change": -1366.67,
        "percentChange": -2.07
      },
      "atmIv": {
        "current": 42.73,
        "previous": 42.64,
        "change": 0.09,
        "percentChange": 0.21
      },
      "rr25": {
        "current": -5.18,
        "previous": -4.64,
        "change": -0.54,
        "percentChange": -11.64
      },
      "bf25": {
        "current": 3.1,
        "previous": 3.14,
        "change": -0.04,
        "percentChange": -1.27
      },
      "svi": {
        "a": {
          "current": -0.2496,
          "previous": -0.1896,
          "change": -0.06,
          "percentChange": -31.66
        },
        "b": {
          "current": 0.3738,
          "previous": 0.3438,
          "change": 0.03,
          "percentChange": 8.72
        },
        "rho": {
          "current": -0.3683,
          "previous": -0.3548,
          "change": -0.0135,
          "percentChange": -3.81
        },
        "m": {
          "current": -0.1506,
          "previous": -0.123,
          "change": -0.0276,
          "percentChange": -22.45
        },
        "sigma": {
          "current": 1.0953,
          "previous": 1.0017,
          "change": 0.0935,
          "percentChange": 9.34
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          49.4066,
          49.0316,
          48.6639,
          48.3037,
          47.9514,
          47.607,
          47.2707,
          46.9429,
          46.6237,
          46.3132,
          46.0117,
          45.7193,
          45.4363,
          45.1627,
          44.8988,
          44.6447,
          44.4005,
          44.1663,
          43.9424,
          43.7287,
          43.5254,
          43.3325,
          43.1502,
          42.9785,
          42.8175,
          42.6671,
          42.5275,
          42.3986,
          42.2804,
          42.1729,
          42.0761,
          41.99,
          41.9144,
          41.8494,
          41.7949,
          41.7507,
          41.7168,
          41.6931,
          41.6794,
          41.6757,
          41.6817
        ],
        "previous": [
          48.9938,
          48.6299,
          48.2734,
          47.9246,
          47.5836,
          47.2508,
          46.9263,
          46.6104,
          46.3033,
          46.0051,
          45.7161,
          45.4365,
          45.1664,
          44.9061,
          44.6557,
          44.4153,
          44.1851,
          43.9653,
          43.7559,
          43.557,
          43.3688,
          43.1913,
          43.0246,
          42.8688,
          42.7238,
          42.5898,
          42.4666,
          42.3544,
          42.2531,
          42.1626,
          42.0829,
          42.014,
          41.9557,
          41.9081,
          41.8709,
          41.8441,
          41.8276,
          41.8212,
          41.8248,
          41.8382,
          41.8613
        ],
        "change": [
          0.4128,
          0.4017,
          0.3905,
          0.3791,
          0.3678,
          0.3562,
          0.3444,
          0.3325,
          0.3204,
          0.3081,
          0.2956,
          0.2828,
          0.2699,
          0.2566,
          0.2431,
          0.2294,
          0.2154,
          0.201,
          0.1865,
          0.1717,
          0.1566,
          0.1412,
          0.1256,
          0.1097,
          0.0937,
          0.0773,
          0.0609,
          0.0442,
          0.0273,
          0.0103,
          -0.0068,
          -0.024,
          -0.0413,
          -0.0587,
          -0.076,
          -0.0934,
          -0.1108,
          -0.1281,
          -0.1454,
          -0.1625,
          -0.1796
        ],
        "classification": [
          "limited movement"
        ],
        "parallelShift": 0.148,
        "rotation": -0.302,
        "wingChange": -0.012,
        "rmsChange": 0.227
      }
    }
  ],
  "events": [
    {
      "type": "rotation",
      "title": "Largest eligible smile rotation",
      "label": "26JUN26",
      "value": 3.629,
      "score": 3.629,
      "unit": "volatility points"
    },
    {
      "type": "rr25",
      "title": "Largest standard-tenor RR25 move",
      "label": "1W",
      "value": -1.14,
      "score": 1.14,
      "unit": "volatility points"
    },
    {
      "type": "atmIv",
      "title": "Largest standard-tenor ATM IV move",
      "label": "2W",
      "value": 0.85,
      "score": 0.85,
      "unit": "volatility points"
    },
    {
      "type": "bf25",
      "title": "Largest standard-tenor BF25 move",
      "label": "1W",
      "value": 0.82,
      "score": 0.82,
      "unit": "volatility points"
    },
    {
      "type": "sigma",
      "title": "Largest eligible SVI sigma move",
      "label": "26JUN26",
      "value": -0.287,
      "score": 0.287,
      "unit": "parameter units"
    },
    {
      "type": "rho",
      "title": "Largest eligible SVI rho move",
      "label": "26JUN26",
      "value": 0.1577,
      "score": 0.1577,
      "unit": "parameter units"
    }
  ],
  "expiryEffects": [
    {
      "label": "24JUN26",
      "daysToExpiry": 0.334,
      "metric": "Smile rotation",
      "value": -20.504,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    },
    {
      "label": "25JUN26",
      "daysToExpiry": 1.334,
      "metric": "Smile rotation",
      "value": 12.455,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    }
  ],
  "ultraShortThresholdDays": 2.0,
  "greekCharacteristics": {
    "highestVega": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 219.76003888,
      "metric": "vega",
      "availability": "available"
    },
    "highestGamma": {
      "label": "24JUN26",
      "expiry": 1782288000000,
      "value": 0.000622415984,
      "metric": "gamma",
      "availability": "available"
    },
    "highestThetaDecay": {
      "label": "24JUN26",
      "expiry": 1782288000000,
      "value": -382.71141529,
      "metric": "theta",
      "availability": "available"
    },
    "highestVanna": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 0.00170289,
      "metric": "vanna",
      "availability": "available"
    },
    "highestVolga": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": -17.70878213,
      "metric": "volga",
      "availability": "available"
    }
  },
  "heatmap": {
    "x": [
      -0.3,
      -0.285,
      -0.27,
      -0.255,
      -0.24,
      -0.225,
      -0.21,
      -0.195,
      -0.18,
      -0.165,
      -0.15,
      -0.135,
      -0.12,
      -0.105,
      -0.09,
      -0.075,
      -0.06,
      -0.045,
      -0.03,
      -0.015,
      0.0,
      0.015,
      0.03,
      0.045,
      0.06,
      0.075,
      0.09,
      0.105,
      0.12,
      0.135,
      0.15,
      0.165,
      0.18,
      0.195,
      0.21,
      0.225,
      0.24,
      0.255,
      0.27,
      0.285,
      0.3
    ],
    "rows": [
      {
        "label": "24JUN26",
        "values": [
          147.2371,
          142.2522,
          137.0002,
          131.4646,
          125.6287,
          119.4769,
          112.9944,
          106.1681,
          98.9881,
          91.4481,
          83.547,
          75.2905,
          66.6919,
          57.775,
          48.5754,
          39.1461,
          29.5684,
          19.9829,
          10.6723,
          2.2851,
          -3.6752,
          -4.7091,
          0.0848,
          8.2712,
          17.4045,
          26.3784,
          34.8326,
          42.6934,
          49.9828,
          56.749,
          63.0433,
          68.9131,
          74.4001,
          79.541,
          84.368,
          88.9093,
          93.1904,
          97.2335,
          101.0588,
          104.6843,
          108.1266
        ]
      },
      {
        "label": "25JUN26",
        "values": [
          45.3462,
          44.0944,
          42.7184,
          41.211,
          39.5651,
          37.7743,
          35.8324,
          33.7342,
          31.4765,
          29.0574,
          26.4783,
          23.7447,
          20.8676,
          17.8671,
          14.7767,
          11.6507,
          8.5783,
          5.704,
          3.258,
          1.5809,
          1.0937,
          2.132,
          4.7022,
          8.4353,
          12.8234,
          17.4552,
          22.0812,
          26.5772,
          30.8919,
          35.0101,
          38.9332,
          42.6685,
          46.2255,
          49.614,
          52.8438,
          55.9238,
          58.8625,
          61.6682,
          64.3485,
          66.9109,
          69.3622
        ]
      },
      {
        "label": "26JUN26",
        "values": [
          19.5279,
          19.2842,
          18.9657,
          18.5679,
          18.0858,
          17.5147,
          16.8502,
          16.0884,
          15.2261,
          14.2609,
          13.1923,
          12.0218,
          10.7542,
          9.3988,
          7.9721,
          6.5007,
          5.0269,
          3.6157,
          2.3618,
          1.3932,
          0.8591,
          0.8916,
          1.5496,
          2.784,
          4.4601,
          6.4168,
          8.5152,
          10.6561,
          12.7764,
          14.8385,
          16.8215,
          18.7145,
          20.5122,
          22.213,
          23.8172,
          25.327,
          26.745,
          28.0745,
          29.3192,
          30.4831,
          31.5699
        ]
      },
      {
        "label": "3JUL26",
        "values": [
          6.0254,
          5.9761,
          5.902,
          5.802,
          5.6746,
          5.5187,
          5.3334,
          5.1179,
          4.8719,
          4.5954,
          4.2892,
          3.9548,
          3.5952,
          3.214,
          2.8171,
          2.4124,
          2.0102,
          1.6239,
          1.27,
          0.9685,
          0.7418,
          0.6138,
          0.6066,
          0.7379,
          1.0174,
          1.4442,
          2.0065,
          2.6838,
          3.4503,
          4.2792,
          5.1454,
          6.0274,
          6.9082,
          7.7749,
          8.6185,
          9.4323,
          10.2125,
          10.9564,
          11.6631,
          12.3319,
          12.9633
        ]
      },
      {
        "label": "10JUL26",
        "values": [
          5.5417,
          5.3524,
          5.1546,
          4.948,
          4.7327,
          4.5088,
          4.2768,
          4.0368,
          3.7896,
          3.536,
          3.277,
          3.0143,
          2.7494,
          2.4847,
          2.223,
          1.9677,
          1.7226,
          1.4927,
          1.2832,
          1.1002,
          0.9501,
          0.8397,
          0.7755,
          0.7632,
          0.8072,
          0.9101,
          1.0722,
          1.2912,
          1.5625,
          1.8798,
          2.2352,
          2.6206,
          3.0279,
          3.4495,
          3.879,
          4.3107,
          4.7401,
          5.1635,
          5.5784,
          5.9826,
          6.3747
        ]
      },
      {
        "label": "31JUL26",
        "values": [
          2.4636,
          2.3651,
          2.2672,
          2.1701,
          2.0738,
          1.9786,
          1.8846,
          1.7919,
          1.7007,
          1.6111,
          1.5235,
          1.4378,
          1.3544,
          1.2736,
          1.1955,
          1.1203,
          1.0483,
          0.9797,
          0.9148,
          0.8538,
          0.7969,
          0.7444,
          0.6963,
          0.6529,
          0.6142,
          0.5804,
          0.5511,
          0.5266,
          0.5066,
          0.4909,
          0.4792,
          0.4713,
          0.4667,
          0.465,
          0.4659,
          0.4692,
          0.4742,
          0.4809,
          0.4889,
          0.4979,
          0.5078
        ]
      },
      {
        "label": "28AUG26",
        "values": [
          1.4053,
          1.3768,
          1.3474,
          1.3169,
          1.2852,
          1.2524,
          1.2185,
          1.1834,
          1.1472,
          1.1099,
          1.0715,
          1.032,
          0.9917,
          0.9504,
          0.9083,
          0.8654,
          0.822,
          0.7781,
          0.734,
          0.6898,
          0.6458,
          0.6022,
          0.5592,
          0.5171,
          0.4763,
          0.4371,
          0.3998,
          0.3645,
          0.3318,
          0.3018,
          0.275,
          0.2513,
          0.2312,
          0.2146,
          0.2019,
          0.1929,
          0.1877,
          0.1864,
          0.1888,
          0.1948,
          0.2042
        ]
      },
      {
        "label": "25SEP26",
        "values": [
          0.892,
          0.8621,
          0.8325,
          0.8031,
          0.774,
          0.745,
          0.7162,
          0.6875,
          0.6588,
          0.6301,
          0.6013,
          0.5724,
          0.5433,
          0.514,
          0.4843,
          0.4542,
          0.4237,
          0.3928,
          0.3612,
          0.3291,
          0.2964,
          0.263,
          0.2291,
          0.1944,
          0.1592,
          0.1234,
          0.0871,
          0.0502,
          0.013,
          -0.0245,
          -0.0622,
          -0.1,
          -0.1376,
          -0.1751,
          -0.2122,
          -0.2488,
          -0.2847,
          -0.3198,
          -0.3541,
          -0.3871,
          -0.419
        ]
      },
      {
        "label": "25DEC26",
        "values": [
          0.5574,
          0.5341,
          0.511,
          0.4882,
          0.4657,
          0.4434,
          0.4214,
          0.3996,
          0.378,
          0.3566,
          0.3354,
          0.3144,
          0.2936,
          0.273,
          0.2525,
          0.2322,
          0.2119,
          0.1919,
          0.172,
          0.1522,
          0.1325,
          0.1129,
          0.0935,
          0.0742,
          0.055,
          0.0359,
          0.017,
          -0.0019,
          -0.0205,
          -0.0392,
          -0.0575,
          -0.0757,
          -0.0938,
          -0.1117,
          -0.1293,
          -0.1468,
          -0.1641,
          -0.1812,
          -0.198,
          -0.2145,
          -0.2308
        ]
      },
      {
        "label": "26MAR27",
        "values": [
          0.4128,
          0.4017,
          0.3905,
          0.3791,
          0.3678,
          0.3562,
          0.3444,
          0.3325,
          0.3204,
          0.3081,
          0.2956,
          0.2828,
          0.2699,
          0.2566,
          0.2431,
          0.2294,
          0.2154,
          0.201,
          0.1865,
          0.1717,
          0.1566,
          0.1412,
          0.1256,
          0.1097,
          0.0937,
          0.0773,
          0.0609,
          0.0442,
          0.0273,
          0.0103,
          -0.0068,
          -0.024,
          -0.0413,
          -0.0587,
          -0.076,
          -0.0934,
          -0.1108,
          -0.1281,
          -0.1454,
          -0.1625,
          -0.1796
        ]
      }
    ]
  }
}
