{
  "schemaVersion": 2,
  "reportDate": "2026-05-07",
  "generatedAt": "2026-07-25T18:42:32+00:00",
  "currentSnapshotAt": "2026-05-07T23:59:00+00:00",
  "previousSnapshotAt": "2026-05-06T23:59:00+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": 0.22568803,
    "previousObjective": 0.10041856,
    "currentLiveError": 236.89417075,
    "previousLiveError": 137.88318743
  },
  "coverage": {
    "currentListedExpiries": 12,
    "previousListedExpiries": 12,
    "comparedListedExpiries": 11,
    "addedExpiries": [
      "11MAY26"
    ],
    "removedExpiries": [
      "7MAY26"
    ],
    "fixedTenors": [
      "1W",
      "2W",
      "1M",
      "3M",
      "6M",
      "9M",
      "1Y"
    ]
  },
  "commentary": {
    "source": "deterministic",
    "model": null,
    "headline": "BTC daily surface: 2W ATM IV falls 1.02 volatility points",
    "executiveSummary": "Across the six headline tenors, ATM IV averaged -0.46 volatility points, RR25 -0.23 volatility points and BF25 +0.12 volatility points between the stored endpoints.",
    "takeaways": [
      {
        "id": "front-atm",
        "label": "Front end",
        "text": "Front-end ATM IV decreased, averaging -0.70 volatility points across 1W, 2W and 1M."
      },
      {
        "id": "back-atm",
        "label": "Long end",
        "text": "Long-dated ATM IV decreased, averaging -0.15 volatility points across 6M and 1Y."
      },
      {
        "id": "rr25",
        "label": "Skew",
        "text": "RR25 moved towards puts, averaging -0.23 volatility points across the six headline tenors."
      },
      {
        "id": "bf25",
        "label": "Convexity",
        "text": "BF25 increased, averaging +0.12 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 -1.02 volatility points at 2W.",
        "tenor": "2W",
        "value": -1.02
      }
    ],
    "evidenceIds": [
      "front-atm",
      "back-atm",
      "rr25",
      "bf25",
      "largest-standard-tenor"
    ]
  },
  "newsEvidence": null,
  "facts": [
    {
      "id": "front-atm",
      "label": "Front end",
      "text": "Front-end ATM IV decreased, averaging -0.70 volatility points across 1W, 2W and 1M."
    },
    {
      "id": "back-atm",
      "label": "Long end",
      "text": "Long-dated ATM IV decreased, averaging -0.15 volatility points across 6M and 1Y."
    },
    {
      "id": "rr25",
      "label": "Skew",
      "text": "RR25 moved towards puts, averaging -0.23 volatility points across the six headline tenors."
    },
    {
      "id": "bf25",
      "label": "Convexity",
      "text": "BF25 increased, averaging +0.12 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 -1.02 volatility points at 2W.",
      "tenor": "2W",
      "value": -1.02
    }
  ],
  "summaryMetrics": {
    "basis": "Average change across 1W, 2W, 1M, 3M, 6M and 1Y",
    "unit": "volatility points",
    "atmIvChange": -0.46,
    "rr25Change": -0.23,
    "bf25Change": 0.12
  },
  "tenors": [
    {
      "tenor": "1W",
      "targetExpiry": 1778803144872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 34.15,
        "previous": 34.67,
        "change": -0.52,
        "percentChange": -1.5
      },
      "rr25": {
        "current": -2.06,
        "previous": -1.87,
        "change": -0.19,
        "percentChange": -10.16
      },
      "bf25": {
        "current": 1.88,
        "previous": 1.59,
        "change": 0.29,
        "percentChange": 18.24
      }
    },
    {
      "tenor": "2W",
      "targetExpiry": 1779407944872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 35.51,
        "previous": 36.53,
        "change": -1.02,
        "percentChange": -2.79
      },
      "rr25": {
        "current": -3.28,
        "previous": -2.77,
        "change": -0.51,
        "percentChange": -18.41
      },
      "bf25": {
        "current": 1.78,
        "previous": 1.65,
        "change": 0.13,
        "percentChange": 7.88
      }
    },
    {
      "tenor": "1M",
      "targetExpiry": 1780790344872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.05,
        "previous": 37.62,
        "change": -0.57,
        "percentChange": -1.52
      },
      "rr25": {
        "current": -3.88,
        "previous": -3.3,
        "change": -0.58,
        "percentChange": -17.58
      },
      "bf25": {
        "current": 1.92,
        "previous": 2.06,
        "change": -0.14,
        "percentChange": -6.8
      }
    },
    {
      "tenor": "3M",
      "targetExpiry": 1786060744872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 39.33,
        "previous": 39.66,
        "change": -0.33,
        "percentChange": -0.83
      },
      "rr25": {
        "current": -3.98,
        "previous": -3.65,
        "change": -0.33,
        "percentChange": -9.04
      },
      "bf25": {
        "current": 2.02,
        "previous": 1.93,
        "change": 0.09,
        "percentChange": 4.66
      }
    },
    {
      "tenor": "6M",
      "targetExpiry": 1793923144872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 42.21,
        "previous": 42.43,
        "change": -0.22,
        "percentChange": -0.52
      },
      "rr25": {
        "current": -3.9,
        "previous": -3.88,
        "change": -0.02,
        "percentChange": -0.52
      },
      "bf25": {
        "current": 2.38,
        "previous": 2.16,
        "change": 0.22,
        "percentChange": 10.19
      }
    },
    {
      "tenor": "9M",
      "targetExpiry": 1801785544872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 43.84,
        "previous": 43.97,
        "change": -0.13,
        "percentChange": -0.3
      },
      "rr25": {
        "current": -3.69,
        "previous": -3.92,
        "change": 0.23,
        "percentChange": 5.87
      },
      "bf25": {
        "current": 2.39,
        "previous": 2.2,
        "change": 0.19,
        "percentChange": 8.64
      }
    },
    {
      "tenor": "1Y",
      "targetExpiry": 1809734344872,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.58,
        "previous": 44.66,
        "change": -0.08,
        "percentChange": -0.18
      },
      "rr25": {
        "current": -3.61,
        "previous": -3.84,
        "change": 0.23,
        "percentChange": 5.99
      },
      "bf25": {
        "current": 2.31,
        "previous": 2.16,
        "change": 0.15,
        "percentChange": 6.94
      }
    }
  ],
  "listedExpiries": [
    {
      "label": "8MAY26",
      "expiry": 1778227200000,
      "tauYears": 0.00091515,
      "daysToExpiry": 0.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 80025.19,
        "previous": 81412.12,
        "change": -1386.93,
        "percentChange": -1.7
      },
      "atmIv": {
        "current": 32.6,
        "previous": 33.73,
        "change": -1.13,
        "percentChange": -3.35
      },
      "rr25": {
        "current": -0.82,
        "previous": -0.82,
        "change": 0.0,
        "percentChange": 0.0
      },
      "bf25": {
        "current": 1.2,
        "previous": 0.82,
        "change": 0.38,
        "percentChange": 46.34
      },
      "svi": {
        "a": {
          "current": -0.0411,
          "previous": -0.1159,
          "change": 0.0748,
          "percentChange": 64.56
        },
        "b": {
          "current": 0.0801,
          "previous": 0.1104,
          "change": -0.0302,
          "percentChange": -27.4
        },
        "rho": {
          "current": -0.0508,
          "previous": -0.0546,
          "change": 0.0038,
          "percentChange": 6.93
        },
        "m": {
          "current": -0.0238,
          "previous": -0.0506,
          "change": 0.0268,
          "percentChange": 52.89
        },
        "sigma": {
          "current": 0.5145,
          "previous": 1.0554,
          "change": -0.5409,
          "percentChange": -51.25
        }
      },
      "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": [
          273.358,
          260.7253,
          247.9966,
          235.1766,
          222.2711,
          209.2866,
          196.2312,
          183.1145,
          169.9478,
          156.7454,
          143.5249,
          130.3091,
          117.1286,
          104.0261,
          91.0648,
          78.3437,
          66.03,
          54.4265,
          44.1185,
          36.2415,
          32.6062,
          34.562,
          41.2982,
          50.9238,
          62.0787,
          74.0434,
          86.4508,
          99.1033,
          111.887,
          124.7317,
          137.5912,
          150.4336,
          163.2361,
          175.9815,
          188.6567,
          201.2515,
          213.7578,
          226.1691,
          238.4801,
          250.6867,
          262.7856
        ],
        "previous": [
          120.3974,
          115.0488,
          109.7124,
          104.3926,
          99.0946,
          93.8247,
          88.5904,
          83.4006,
          78.2669,
          73.2031,
          68.2273,
          63.3621,
          58.6373,
          54.0914,
          49.775,
          45.7546,
          42.1158,
          38.9664,
          36.4335,
          34.6521,
          33.7404,
          33.7672,
          34.7282,
          36.5472,
          39.1018,
          42.2556,
          45.8822,
          49.875,
          54.1498,
          58.6415,
          63.3006,
          68.0893,
          72.9787,
          77.9466,
          82.9756,
          88.0518,
          93.1646,
          98.3049,
          103.4655,
          108.6406,
          113.8253
        ],
        "change": [
          152.9606,
          145.6765,
          138.2842,
          130.784,
          123.1765,
          115.4619,
          107.6408,
          99.7139,
          91.6809,
          83.5423,
          75.2976,
          66.947,
          58.4913,
          49.9347,
          41.2898,
          32.5891,
          23.9142,
          15.4601,
          7.685,
          1.5894,
          -1.1342,
          0.7948,
          6.57,
          14.3766,
          22.9769,
          31.7878,
          40.5686,
          49.2283,
          57.7372,
          66.0902,
          74.2906,
          82.3443,
          90.2574,
          98.0349,
          105.6811,
          113.1997,
          120.5932,
          127.8642,
          135.0146,
          142.0461,
          148.9603
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 49.485,
        "rotation": -1.007,
        "wingChange": 75.928,
        "rmsChange": 89.041
      }
    },
    {
      "label": "9MAY26",
      "expiry": 1778313600000,
      "tauYears": 0.00365488,
      "daysToExpiry": 1.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 80015.97,
        "previous": 81423.19,
        "change": -1407.22,
        "percentChange": -1.73
      },
      "atmIv": {
        "current": 31.68,
        "previous": 33.39,
        "change": -1.71,
        "percentChange": -5.12
      },
      "rr25": {
        "current": -0.26,
        "previous": -1.13,
        "change": 0.87,
        "percentChange": 76.99
      },
      "bf25": {
        "current": 1.46,
        "previous": 1.27,
        "change": 0.19,
        "percentChange": 14.96
      },
      "svi": {
        "a": {
          "current": -0.0397,
          "previous": -0.0877,
          "change": 0.048,
          "percentChange": 54.71
        },
        "b": {
          "current": 0.0887,
          "previous": 0.12,
          "change": -0.0312,
          "percentChange": -26.03
        },
        "rho": {
          "current": -0.0201,
          "previous": -0.055,
          "change": 0.0349,
          "percentChange": 63.54
        },
        "m": {
          "current": -0.0078,
          "previous": -0.0323,
          "change": 0.0246,
          "percentChange": 76.02
        },
        "sigma": {
          "current": 0.4517,
          "previous": 0.7379,
          "change": -0.2862,
          "percentChange": -38.78
        }
      },
      "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": [
          152.9769,
          146.2423,
          139.4509,
          132.6068,
          125.7147,
          118.7808,
          111.8128,
          104.8201,
          97.8149,
          90.8125,
          83.8327,
          76.9016,
          70.0546,
          63.34,
          56.8264,
          50.6128,
          44.8452,
          39.7372,
          35.5905,
          32.7841,
          31.6824,
          32.4594,
          34.9842,
          38.9081,
          43.8436,
          49.4735,
          55.5704,
          61.9791,
          68.5944,
          75.344,
          82.1771,
          89.0572,
          95.9575,
          102.8578,
          109.7426,
          116.6,
          123.4205,
          130.1969,
          136.9231,
          143.5946,
          150.2078
        ],
        "previous": [
          113.6079,
          108.702,
          103.7975,
          98.8993,
          94.0128,
          89.1447,
          84.3028,
          79.4966,
          74.7379,
          70.0408,
          65.4234,
          60.9083,
          56.5244,
          52.3088,
          48.3093,
          44.5877,
          41.222,
          38.3084,
          35.9582,
          34.2878,
          33.3988,
          33.3518,
          34.1477,
          35.7266,
          37.9867,
          40.8102,
          44.084,
          47.7101,
          51.6088,
          55.7173,
          59.9869,
          64.38,
          68.8674,
          73.4263,
          78.0389,
          82.6908,
          87.3707,
          92.0692,
          96.7788,
          101.4931,
          106.207
        ],
        "change": [
          39.369,
          37.5403,
          35.6534,
          33.7075,
          31.7019,
          29.6361,
          27.51,
          25.3235,
          23.077,
          20.7717,
          18.4093,
          15.9933,
          13.5302,
          11.0312,
          8.5171,
          6.0251,
          3.6232,
          1.4288,
          -0.3677,
          -1.5037,
          -1.7164,
          -0.8924,
          0.8365,
          3.1815,
          5.8569,
          8.6633,
          11.4864,
          14.269,
          16.9856,
          19.6267,
          22.1902,
          24.6772,
          27.0901,
          29.4315,
          31.7037,
          33.9092,
          36.0498,
          38.1277,
          40.1443,
          42.1015,
          44.0008
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 12.961,
        "rotation": 3.781,
        "wingChange": 22.016,
        "rmsChange": 24.545
      }
    },
    {
      "label": "10MAY26",
      "expiry": 1778400000000,
      "tauYears": 0.0063946,
      "daysToExpiry": 2.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80027.19,
        "previous": 81421.37,
        "change": -1394.18,
        "percentChange": -1.71
      },
      "atmIv": {
        "current": 27.11,
        "previous": 29.95,
        "change": -2.84,
        "percentChange": -9.48
      },
      "rr25": {
        "current": -0.47,
        "previous": -0.63,
        "change": 0.16,
        "percentChange": 25.4
      },
      "bf25": {
        "current": 1.45,
        "previous": 1.31,
        "change": 0.14,
        "percentChange": 10.69
      },
      "svi": {
        "a": {
          "current": -0.0401,
          "previous": -0.0777,
          "change": 0.0376,
          "percentChange": 48.4
        },
        "b": {
          "current": 0.0958,
          "previous": 0.1207,
          "change": -0.025,
          "percentChange": -20.68
        },
        "rho": {
          "current": -0.0335,
          "previous": -0.0484,
          "change": 0.0149,
          "percentChange": 30.82
        },
        "m": {
          "current": -0.0116,
          "previous": -0.0265,
          "change": 0.0149,
          "percentChange": 56.27
        },
        "sigma": {
          "current": 0.4235,
          "previous": 0.6507,
          "change": -0.2272,
          "percentChange": -34.92
        }
      },
      "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": [
          124.6023,
          119.201,
          113.7508,
          108.2548,
          102.7171,
          97.143,
          91.5391,
          85.9134,
          80.2765,
          74.6415,
          69.0254,
          63.4507,
          57.9472,
          52.5557,
          47.3328,
          42.3594,
          37.7517,
          33.676,
          30.3606,
          28.0852,
          27.117,
          27.5923,
          29.435,
          32.4024,
          36.206,
          40.5966,
          45.3885,
          50.4508,
          55.6934,
          61.0533,
          66.4861,
          71.9596,
          77.4501,
          82.94,
          88.4156,
          93.8667,
          99.2851,
          104.6646,
          110.0002,
          115.2882,
          120.5256
        ],
        "previous": [
          100.1592,
          95.8426,
          91.5228,
          87.2043,
          82.8924,
          78.5933,
          74.3146,
          70.0655,
          65.8569,
          61.7028,
          57.6203,
          53.6312,
          49.7631,
          46.0516,
          42.5424,
          39.294,
          36.3799,
          33.8895,
          31.924,
          30.5857,
          29.9585,
          30.0852,
          30.954,
          32.5018,
          34.6334,
          37.2436,
          40.2341,
          43.521,
          47.0361,
          50.7263,
          54.55,
          58.475,
          62.4764,
          66.5346,
          70.6341,
          74.7625,
          78.91,
          83.0684,
          87.2311,
          91.3926,
          95.5484
        ],
        "change": [
          24.4431,
          23.3584,
          22.228,
          21.0505,
          19.8247,
          18.5497,
          17.2245,
          15.8479,
          14.4196,
          12.9387,
          11.4051,
          9.8195,
          8.1841,
          6.5041,
          4.7904,
          3.0654,
          1.3718,
          -0.2135,
          -1.5634,
          -2.5005,
          -2.8415,
          -2.4929,
          -1.519,
          -0.0994,
          1.5726,
          3.353,
          5.1544,
          6.9298,
          8.6573,
          10.327,
          11.9361,
          13.4846,
          14.9737,
          16.4054,
          17.7815,
          19.1042,
          20.3751,
          21.5962,
          22.7691,
          23.8956,
          24.9772
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 6.833,
        "rotation": 0.531,
        "wingChange": 14.512,
        "rmsChange": 14.398
      }
    },
    {
      "label": "15MAY26",
      "expiry": 1778832000000,
      "tauYears": 0.02009323,
      "daysToExpiry": 7.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80050.49,
        "previous": 81448.98,
        "change": -1398.49,
        "percentChange": -1.72
      },
      "atmIv": {
        "current": 34.37,
        "previous": 35.3,
        "change": -0.93,
        "percentChange": -2.63
      },
      "rr25": {
        "current": -2.1,
        "previous": -2.03,
        "change": -0.07,
        "percentChange": -3.45
      },
      "bf25": {
        "current": 1.9,
        "previous": 1.63,
        "change": 0.27,
        "percentChange": 16.56
      },
      "svi": {
        "a": {
          "current": -0.068,
          "previous": -0.076,
          "change": 0.008,
          "percentChange": 10.56
        },
        "b": {
          "current": 0.1288,
          "previous": 0.1234,
          "change": 0.0053,
          "percentChange": 4.33
        },
        "rho": {
          "current": 0.062,
          "previous": -0.0257,
          "change": 0.0877,
          "percentChange": 341.5
        },
        "m": {
          "current": 0.0533,
          "previous": 0.0076,
          "change": 0.0457,
          "percentChange": 599.29
        },
        "sigma": {
          "current": 0.547,
          "previous": 0.6385,
          "change": -0.0915,
          "percentChange": -14.34
        }
      },
      "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": [
          80.6294,
          77.7631,
          74.8955,
          72.0304,
          69.1726,
          66.3277,
          63.5023,
          60.7042,
          57.9428,
          55.229,
          52.576,
          49.9993,
          47.5175,
          45.1523,
          42.929,
          40.8771,
          39.0294,
          37.4218,
          36.0919,
          35.0759,
          34.4058,
          34.1056,
          34.1874,
          34.6504,
          35.4806,
          36.6529,
          38.1352,
          39.8915,
          41.8852,
          44.0816,
          46.449,
          48.9591,
          51.5874,
          54.313,
          57.1179,
          59.9868,
          62.9068,
          65.867,
          68.8581,
          71.872,
          74.902
        ],
        "previous": [
          73.8898,
          71.3722,
          68.8666,
          66.377,
          63.9083,
          61.466,
          59.0565,
          56.687,
          54.366,
          52.103,
          49.9091,
          47.7969,
          45.7807,
          43.8766,
          42.1026,
          40.4784,
          39.025,
          37.7641,
          36.7172,
          35.9044,
          35.3428,
          35.0447,
          35.0171,
          35.26,
          35.7671,
          36.5261,
          37.5201,
          38.7291,
          40.1313,
          41.7049,
          43.4285,
          45.2822,
          47.2478,
          49.3089,
          51.451,
          53.6614,
          55.9289,
          58.2438,
          60.5977,
          62.9833,
          65.3942
        ],
        "change": [
          6.7396,
          6.3909,
          6.0289,
          5.6534,
          5.2643,
          4.8617,
          4.4458,
          4.0172,
          3.5768,
          3.126,
          2.6669,
          2.2024,
          1.7368,
          1.2757,
          0.8264,
          0.3987,
          0.0044,
          -0.3423,
          -0.6253,
          -0.8285,
          -0.937,
          -0.9391,
          -0.8297,
          -0.6096,
          -0.2865,
          0.1268,
          0.6151,
          1.1624,
          1.7539,
          2.3767,
          3.0205,
          3.6769,
          4.3396,
          5.0041,
          5.6669,
          6.3254,
          6.9779,
          7.6232,
          8.2604,
          8.8887,
          9.5078
        ],
        "classification": [
          "wing steepening"
        ],
        "parallelShift": 1.583,
        "rotation": 0.354,
        "wingChange": 3.781,
        "rmsChange": 4.36
      }
    },
    {
      "label": "22MAY26",
      "expiry": 1779436800000,
      "tauYears": 0.03927131,
      "daysToExpiry": 14.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80067.1,
        "previous": 81453.84,
        "change": -1386.74,
        "percentChange": -1.7
      },
      "atmIv": {
        "current": 35.54,
        "previous": 36.68,
        "change": -1.14,
        "percentChange": -3.11
      },
      "rr25": {
        "current": -3.31,
        "previous": -2.86,
        "change": -0.45,
        "percentChange": -15.73
      },
      "bf25": {
        "current": 1.77,
        "previous": 1.66,
        "change": 0.11,
        "percentChange": 6.63
      },
      "svi": {
        "a": {
          "current": -0.0876,
          "previous": -0.0895,
          "change": 0.0019,
          "percentChange": 2.08
        },
        "b": {
          "current": 0.1437,
          "previous": 0.1354,
          "change": 0.0082,
          "percentChange": 6.08
        },
        "rho": {
          "current": 0.1437,
          "previous": 0.0576,
          "change": 0.0861,
          "percentChange": 149.41
        },
        "m": {
          "current": 0.1416,
          "previous": 0.0876,
          "change": 0.054,
          "percentChange": 61.64
        },
        "sigma": {
          "current": 0.6499,
          "previous": 0.7024,
          "change": -0.0525,
          "percentChange": -7.48
        }
      },
      "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": [
          64.0554,
          62.2671,
          60.487,
          58.7181,
          56.9633,
          55.2264,
          53.5112,
          51.8225,
          50.1652,
          48.5454,
          46.9694,
          45.4446,
          43.9792,
          42.5821,
          41.2632,
          40.0332,
          38.9033,
          37.8856,
          36.992,
          36.2346,
          35.6247,
          35.1726,
          34.8865,
          34.7729,
          34.8353,
          35.0743,
          35.4877,
          36.0707,
          36.816,
          37.7144,
          38.7557,
          39.9285,
          41.2214,
          42.623,
          44.1222,
          45.7086,
          47.3723,
          49.1044,
          50.8964,
          52.741,
          54.6311
        ],
        "previous": [
          61.945,
          60.2904,
          58.6499,
          57.0262,
          55.4226,
          53.8426,
          52.2901,
          50.7696,
          49.2859,
          47.8442,
          46.4504,
          45.1108,
          43.8324,
          42.6225,
          41.489,
          40.4402,
          39.4845,
          38.6305,
          37.8868,
          37.2613,
          36.7614,
          36.3935,
          36.1626,
          36.0722,
          36.124,
          36.3177,
          36.6515,
          37.1217,
          37.7229,
          38.4487,
          39.2918,
          40.2441,
          41.2974,
          42.4431,
          43.6731,
          44.9792,
          46.3539,
          47.7898,
          49.2804,
          50.8194,
          52.4011
        ],
        "change": [
          2.1104,
          1.9767,
          1.8371,
          1.6919,
          1.5407,
          1.3838,
          1.2211,
          1.0529,
          0.8793,
          0.7012,
          0.519,
          0.3338,
          0.1468,
          -0.0404,
          -0.2258,
          -0.407,
          -0.5812,
          -0.7449,
          -0.8948,
          -1.0267,
          -1.1367,
          -1.2209,
          -1.2761,
          -1.2993,
          -1.2887,
          -1.2434,
          -1.1638,
          -1.051,
          -0.9069,
          -0.7343,
          -0.5361,
          -0.3156,
          -0.076,
          0.1799,
          0.4491,
          0.7294,
          1.0184,
          1.3146,
          1.616,
          1.9216,
          2.23
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": -0.385,
        "rotation": -1.055,
        "wingChange": 1.128,
        "rmsChange": 1.152
      }
    },
    {
      "label": "29MAY26",
      "expiry": 1780041600000,
      "tauYears": 0.05844939,
      "daysToExpiry": 21.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80104.17,
        "previous": 81493.74,
        "change": -1389.57,
        "percentChange": -1.71
      },
      "atmIv": {
        "current": 36.05,
        "previous": 37.03,
        "change": -0.98,
        "percentChange": -2.65
      },
      "rr25": {
        "current": -3.58,
        "previous": -3.21,
        "change": -0.37,
        "percentChange": -11.53
      },
      "bf25": {
        "current": 1.74,
        "previous": 1.91,
        "change": -0.17,
        "percentChange": -8.9
      },
      "svi": {
        "a": {
          "current": -0.0947,
          "previous": -0.0858,
          "change": -0.0088,
          "percentChange": -10.3
        },
        "b": {
          "current": 0.1529,
          "previous": 0.1478,
          "change": 0.0051,
          "percentChange": 3.44
        },
        "rho": {
          "current": 0.1955,
          "previous": 0.1367,
          "change": 0.0588,
          "percentChange": 43.0
        },
        "m": {
          "current": 0.1999,
          "previous": 0.1448,
          "change": 0.0551,
          "percentChange": 38.07
        },
        "sigma": {
          "current": 0.6794,
          "previous": 0.6414,
          "change": 0.038,
          "percentChange": 5.93
        }
      },
      "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": [
          57.5605,
          56.2107,
          54.8702,
          53.5412,
          52.226,
          50.9271,
          49.6474,
          48.3901,
          47.1586,
          45.9568,
          44.789,
          43.6596,
          42.5737,
          41.5367,
          40.5544,
          39.6327,
          38.7783,
          37.9975,
          37.2973,
          36.6841,
          36.1644,
          35.7444,
          35.4293,
          35.2239,
          35.1317,
          35.1553,
          35.2958,
          35.5531,
          35.9259,
          36.4116,
          37.0065,
          37.7062,
          38.5053,
          39.3981,
          40.3785,
          41.4403,
          42.5773,
          43.7831,
          45.0519,
          46.378,
          47.7559
        ],
        "previous": [
          57.9672,
          56.618,
          55.2798,
          53.955,
          52.646,
          51.3556,
          50.0871,
          48.8438,
          47.6293,
          46.448,
          45.3041,
          44.2026,
          43.1487,
          42.1478,
          41.2058,
          40.3289,
          39.5234,
          38.7957,
          38.1521,
          37.5988,
          37.1417,
          36.7859,
          36.536,
          36.3956,
          36.3672,
          36.4523,
          36.6509,
          36.962,
          37.3834,
          37.9118,
          38.543,
          39.272,
          40.0934,
          41.0013,
          41.9896,
          43.0522,
          44.1831,
          45.3761,
          46.6257,
          47.9263,
          49.2727
        ],
        "change": [
          -0.4067,
          -0.4073,
          -0.4096,
          -0.4138,
          -0.42,
          -0.4285,
          -0.4397,
          -0.4537,
          -0.4707,
          -0.4912,
          -0.5151,
          -0.543,
          -0.575,
          -0.6111,
          -0.6514,
          -0.6962,
          -0.7451,
          -0.7982,
          -0.8548,
          -0.9147,
          -0.9773,
          -1.0415,
          -1.1067,
          -1.1717,
          -1.2355,
          -1.297,
          -1.3551,
          -1.4089,
          -1.4575,
          -1.5002,
          -1.5365,
          -1.5658,
          -1.5881,
          -1.6032,
          -1.6111,
          -1.6119,
          -1.6058,
          -1.593,
          -1.5738,
          -1.5483,
          -1.5168
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": -1.01,
        "rotation": -1.021,
        "wingChange": -0.048,
        "rmsChange": 1.107
      }
    },
    {
      "label": "26JUN26",
      "expiry": 1782460800000,
      "tauYears": 0.13516172,
      "daysToExpiry": 49.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80189.7,
        "previous": 81602.16,
        "change": -1412.46,
        "percentChange": -1.73
      },
      "atmIv": {
        "current": 37.99,
        "previous": 38.3,
        "change": -0.31,
        "percentChange": -0.81
      },
      "rr25": {
        "current": -4.16,
        "previous": -3.4,
        "change": -0.76,
        "percentChange": -22.35
      },
      "bf25": {
        "current": 2.1,
        "previous": 2.22,
        "change": -0.12,
        "percentChange": -5.41
      },
      "svi": {
        "a": {
          "current": -0.2363,
          "previous": -0.16,
          "change": -0.0763,
          "percentChange": -47.65
        },
        "b": {
          "current": 0.2422,
          "previous": 0.2106,
          "change": 0.0316,
          "percentChange": 15.03
        },
        "rho": {
          "current": -0.0591,
          "previous": -0.1462,
          "change": 0.087,
          "percentChange": 59.55
        },
        "m": {
          "current": 0.0429,
          "previous": -0.0426,
          "change": 0.0855,
          "percentChange": 200.77
        },
        "sigma": {
          "current": 1.0535,
          "previous": 0.862,
          "change": 0.1914,
          "percentChange": 22.21
        }
      },
      "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": [
          52.3173,
          51.3774,
          50.4531,
          49.5456,
          48.6561,
          47.7862,
          46.9374,
          46.111,
          45.3088,
          44.5324,
          43.7835,
          43.0638,
          42.3753,
          41.7197,
          41.0989,
          40.5147,
          39.969,
          39.4635,
          39.0001,
          38.5805,
          38.2061,
          37.8784,
          37.5987,
          37.3682,
          37.1878,
          37.0581,
          36.9797,
          36.9529,
          36.9775,
          37.0534,
          37.18,
          37.3567,
          37.5825,
          37.8563,
          38.1768,
          38.5424,
          38.9517,
          39.4029,
          39.8942,
          40.4237,
          40.9897
        ],
        "previous": [
          52.0472,
          51.1043,
          50.1791,
          49.2731,
          48.3879,
          47.525,
          46.6861,
          45.873,
          45.0874,
          44.3313,
          43.6064,
          42.9146,
          42.2579,
          41.6381,
          41.0571,
          40.5168,
          40.0189,
          39.5652,
          39.157,
          38.796,
          38.4833,
          38.2201,
          38.0071,
          37.8451,
          37.7344,
          37.6752,
          37.6674,
          37.7107,
          37.8044,
          37.9478,
          38.1398,
          38.3791,
          38.6643,
          38.9938,
          39.366,
          39.779,
          40.2309,
          40.7198,
          41.2437,
          41.8007,
          42.3888
        ],
        "change": [
          0.2701,
          0.2731,
          0.274,
          0.2725,
          0.2682,
          0.2612,
          0.2513,
          0.238,
          0.2214,
          0.2011,
          0.1771,
          0.1492,
          0.1174,
          0.0816,
          0.0418,
          -0.0021,
          -0.0499,
          -0.1017,
          -0.1569,
          -0.2155,
          -0.2772,
          -0.3417,
          -0.4084,
          -0.4769,
          -0.5466,
          -0.6171,
          -0.6877,
          -0.7578,
          -0.8269,
          -0.8944,
          -0.9598,
          -1.0224,
          -1.0818,
          -1.1375,
          -1.1892,
          -1.2366,
          -1.2792,
          -1.3169,
          -1.3495,
          -1.377,
          -1.3991
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": -0.353,
        "rotation": -1.137,
        "wingChange": -0.114,
        "rmsChange": 0.716
      }
    },
    {
      "label": "31JUL26",
      "expiry": 1785484800000,
      "tauYears": 0.23105218,
      "daysToExpiry": 84.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80370.53,
        "previous": 81769.47,
        "change": -1398.94,
        "percentChange": -1.71
      },
      "atmIv": {
        "current": 39.03,
        "previous": 39.4,
        "change": -0.37,
        "percentChange": -0.94
      },
      "rr25": {
        "current": -3.96,
        "previous": -3.63,
        "change": -0.33,
        "percentChange": -9.09
      },
      "bf25": {
        "current": 1.96,
        "previous": 1.93,
        "change": 0.03,
        "percentChange": 1.55
      },
      "svi": {
        "a": {
          "current": -0.2465,
          "previous": -0.1949,
          "change": -0.0516,
          "percentChange": -26.46
        },
        "b": {
          "current": 0.2443,
          "previous": 0.2196,
          "change": 0.0247,
          "percentChange": 11.25
        },
        "rho": {
          "current": -0.0503,
          "previous": -0.1285,
          "change": 0.0782,
          "percentChange": 60.87
        },
        "m": {
          "current": 0.0897,
          "previous": 0.0042,
          "change": 0.0855,
          "percentChange": 2030.33
        },
        "sigma": {
          "current": 1.1471,
          "previous": 1.0545,
          "change": 0.0926,
          "percentChange": 8.78
        }
      },
      "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": [
          48.4635,
          47.8603,
          47.2684,
          46.6882,
          46.1204,
          45.5658,
          45.025,
          44.4988,
          43.9878,
          43.4928,
          43.0145,
          42.5537,
          42.1111,
          41.6876,
          41.2837,
          40.9003,
          40.5381,
          40.1978,
          39.88,
          39.5855,
          39.3149,
          39.0686,
          38.8473,
          38.6515,
          38.4816,
          38.338,
          38.2209,
          38.1307,
          38.0675,
          38.0314,
          38.0226,
          38.0408,
          38.0862,
          38.1584,
          38.2572,
          38.3824,
          38.5335,
          38.7101,
          38.9118,
          39.138,
          39.3882
        ],
        "previous": [
          48.3643,
          47.7792,
          47.2059,
          46.6449,
          46.0971,
          45.563,
          45.0433,
          44.5388,
          44.05,
          43.5778,
          43.1227,
          42.6855,
          42.267,
          41.8676,
          41.4883,
          41.1294,
          40.7918,
          40.476,
          40.1826,
          39.9121,
          39.665,
          39.4418,
          39.2428,
          39.0685,
          38.9191,
          38.7948,
          38.6958,
          38.6223,
          38.5743,
          38.5518,
          38.5546,
          38.5827,
          38.6359,
          38.7138,
          38.8162,
          38.9426,
          39.0927,
          39.2659,
          39.4617,
          39.6796,
          39.919
        ],
        "change": [
          0.0992,
          0.0811,
          0.0625,
          0.0433,
          0.0233,
          0.0028,
          -0.0183,
          -0.04,
          -0.0622,
          -0.085,
          -0.1082,
          -0.1318,
          -0.1559,
          -0.18,
          -0.2046,
          -0.2291,
          -0.2537,
          -0.2782,
          -0.3026,
          -0.3266,
          -0.3501,
          -0.3732,
          -0.3955,
          -0.417,
          -0.4375,
          -0.4568,
          -0.4749,
          -0.4916,
          -0.5068,
          -0.5204,
          -0.532,
          -0.5419,
          -0.5497,
          -0.5554,
          -0.559,
          -0.5602,
          -0.5592,
          -0.5558,
          -0.5499,
          -0.5416,
          -0.5308
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.33,
        "rotation": -0.424,
        "wingChange": 0.03,
        "rmsChange": 0.378
      }
    },
    {
      "label": "25SEP26",
      "expiry": 1790323200000,
      "tauYears": 0.38447679,
      "daysToExpiry": 140.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 80761.7,
        "previous": 82131.97,
        "change": -1370.27,
        "percentChange": -1.67
      },
      "atmIv": {
        "current": 40.65,
        "previous": 41.0,
        "change": -0.35,
        "percentChange": -0.85
      },
      "rr25": {
        "current": -4.1,
        "previous": -3.74,
        "change": -0.36,
        "percentChange": -9.63
      },
      "bf25": {
        "current": 2.26,
        "previous": 2.02,
        "change": 0.24,
        "percentChange": 11.88
      },
      "svi": {
        "a": {
          "current": -0.2416,
          "previous": -0.2481,
          "change": 0.0065,
          "percentChange": 2.62
        },
        "b": {
          "current": 0.2699,
          "previous": 0.2657,
          "change": 0.0042,
          "percentChange": 1.59
        },
        "rho": {
          "current": -0.067,
          "previous": -0.2702,
          "change": 0.2032,
          "percentChange": 75.19
        },
        "m": {
          "current": 0.111,
          "previous": -0.1443,
          "change": 0.2553,
          "percentChange": 176.94
        },
        "sigma": {
          "current": 1.1224,
          "previous": 1.2138,
          "change": -0.0913,
          "percentChange": -7.52
        }
      },
      "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": [
          47.9653,
          47.5183,
          47.0796,
          46.6495,
          46.2285,
          45.817,
          45.4154,
          45.0242,
          44.6436,
          44.2742,
          43.9163,
          43.5704,
          43.237,
          42.9163,
          42.6089,
          42.3151,
          42.0353,
          41.7699,
          41.5193,
          41.2839,
          41.0639,
          40.8596,
          40.6715,
          40.4997,
          40.3446,
          40.2063,
          40.0851,
          39.981,
          39.8944,
          39.8252,
          39.7736,
          39.7396,
          39.7232,
          39.7245,
          39.7433,
          39.7795,
          39.8332,
          39.904,
          39.9919,
          40.0967,
          40.218
        ],
        "previous": [
          47.7256,
          47.3016,
          46.8871,
          46.4824,
          46.0877,
          45.7035,
          45.3299,
          44.9672,
          44.6159,
          44.2761,
          43.9481,
          43.6323,
          43.3288,
          43.038,
          42.76,
          42.4951,
          42.2436,
          42.0056,
          41.7813,
          41.5709,
          41.3745,
          41.1923,
          41.0244,
          40.871,
          40.732,
          40.6075,
          40.4976,
          40.4024,
          40.3217,
          40.2556,
          40.2041,
          40.167,
          40.1443,
          40.1359,
          40.1416,
          40.1614,
          40.195,
          40.2422,
          40.3029,
          40.3769,
          40.4639
        ],
        "change": [
          0.2397,
          0.2167,
          0.1925,
          0.1671,
          0.1408,
          0.1135,
          0.0855,
          0.057,
          0.0277,
          -0.0019,
          -0.0318,
          -0.0619,
          -0.0918,
          -0.1217,
          -0.1511,
          -0.18,
          -0.2083,
          -0.2357,
          -0.262,
          -0.287,
          -0.3106,
          -0.3327,
          -0.3529,
          -0.3713,
          -0.3874,
          -0.4012,
          -0.4125,
          -0.4214,
          -0.4273,
          -0.4304,
          -0.4305,
          -0.4274,
          -0.4211,
          -0.4114,
          -0.3983,
          -0.3819,
          -0.3618,
          -0.3382,
          -0.311,
          -0.2802,
          -0.2459
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.258,
        "rotation": -0.399,
        "wingChange": 0.079,
        "rmsChange": 0.294
      }
    },
    {
      "label": "25DEC26",
      "expiry": 1798185600000,
      "tauYears": 0.6337919,
      "daysToExpiry": 231.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 81517.68,
        "previous": 82871.85,
        "change": -1354.17,
        "percentChange": -1.63
      },
      "atmIv": {
        "current": 43.3,
        "previous": 43.48,
        "change": -0.18,
        "percentChange": -0.41
      },
      "rr25": {
        "current": -3.76,
        "previous": -3.98,
        "change": 0.22,
        "percentChange": 5.53
      },
      "bf25": {
        "current": 2.46,
        "previous": 2.24,
        "change": 0.22,
        "percentChange": 9.82
      },
      "svi": {
        "a": {
          "current": -0.2435,
          "previous": -0.1878,
          "change": -0.0557,
          "percentChange": -29.64
        },
        "b": {
          "current": 0.3012,
          "previous": 0.2708,
          "change": 0.0304,
          "percentChange": 11.22
        },
        "rho": {
          "current": -0.1553,
          "previous": -0.2812,
          "change": 0.1259,
          "percentChange": 44.78
        },
        "m": {
          "current": 0.0476,
          "previous": -0.0707,
          "change": 0.1183,
          "percentChange": 167.26
        },
        "sigma": {
          "current": 1.2049,
          "previous": 1.1675,
          "change": 0.0374,
          "percentChange": 3.2
        }
      },
      "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": [
          48.7173,
          48.404,
          48.0969,
          47.7962,
          47.5022,
          47.215,
          46.9348,
          46.6618,
          46.3962,
          46.1382,
          45.8879,
          45.6457,
          45.4116,
          45.1858,
          44.9686,
          44.76,
          44.5602,
          44.3694,
          44.1878,
          44.0154,
          43.8524,
          43.6989,
          43.5551,
          43.421,
          43.2968,
          43.1825,
          43.0781,
          42.9838,
          42.8996,
          42.8256,
          42.7617,
          42.708,
          42.6645,
          42.6311,
          42.608,
          42.5949,
          42.592,
          42.599,
          42.6161,
          42.643,
          42.6797
        ],
        "previous": [
          48.8351,
          48.5285,
          48.228,
          47.9338,
          47.6461,
          47.365,
          47.0908,
          46.8235,
          46.5633,
          46.3105,
          46.065,
          45.8271,
          45.5969,
          45.3746,
          45.1602,
          44.954,
          44.7559,
          44.5661,
          44.3848,
          44.212,
          44.0478,
          43.8923,
          43.7455,
          43.6075,
          43.4783,
          43.3581,
          43.2468,
          43.1444,
          43.051,
          42.9666,
          42.8911,
          42.8246,
          42.767,
          42.7183,
          42.6785,
          42.6475,
          42.6251,
          42.6115,
          42.6065,
          42.6099,
          42.6218
        ],
        "change": [
          -0.1178,
          -0.1245,
          -0.1311,
          -0.1376,
          -0.1439,
          -0.15,
          -0.156,
          -0.1617,
          -0.1671,
          -0.1723,
          -0.1771,
          -0.1814,
          -0.1853,
          -0.1888,
          -0.1916,
          -0.194,
          -0.1957,
          -0.1967,
          -0.197,
          -0.1966,
          -0.1954,
          -0.1934,
          -0.1904,
          -0.1865,
          -0.1815,
          -0.1756,
          -0.1687,
          -0.1606,
          -0.1514,
          -0.141,
          -0.1294,
          -0.1166,
          -0.1025,
          -0.0872,
          -0.0705,
          -0.0526,
          -0.0331,
          -0.0125,
          0.0096,
          0.0331,
          0.0579
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.167,
        "rotation": 0.048,
        "wingChange": 0.042,
        "rmsChange": 0.152
      }
    },
    {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "tauYears": 0.88310717,
      "daysToExpiry": 322.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 82205.54,
        "previous": 83556.37,
        "change": -1350.83,
        "percentChange": -1.62
      },
      "atmIv": {
        "current": 44.29,
        "previous": 44.4,
        "change": -0.11,
        "percentChange": -0.25
      },
      "rr25": {
        "current": -3.64,
        "previous": -3.87,
        "change": 0.23,
        "percentChange": 5.94
      },
      "bf25": {
        "current": 2.34,
        "previous": 2.17,
        "change": 0.17,
        "percentChange": 7.83
      },
      "svi": {
        "a": {
          "current": -0.2431,
          "previous": -0.1859,
          "change": -0.0572,
          "percentChange": -30.76
        },
        "b": {
          "current": 0.3131,
          "previous": 0.2825,
          "change": 0.0306,
          "percentChange": 10.81
        },
        "rho": {
          "current": -0.1115,
          "previous": -0.2284,
          "change": 0.1169,
          "percentChange": 51.2
        },
        "m": {
          "current": 0.1538,
          "previous": 0.0378,
          "change": 0.1161,
          "percentChange": 307.3
        },
        "sigma": {
          "current": 1.3207,
          "previous": 1.2866,
          "change": 0.0342,
          "percentChange": 2.66
        }
      },
      "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": [
          48.7569,
          48.5209,
          48.2892,
          48.0618,
          47.8388,
          47.6203,
          47.4065,
          47.1974,
          46.9932,
          46.794,
          46.5999,
          46.411,
          46.2275,
          46.0493,
          45.8767,
          45.7097,
          45.5485,
          45.3931,
          45.2436,
          45.1001,
          44.9627,
          44.8314,
          44.7065,
          44.5879,
          44.4756,
          44.3699,
          44.2707,
          44.178,
          44.092,
          44.0127,
          43.9402,
          43.8743,
          43.8153,
          43.7631,
          43.7177,
          43.6792,
          43.6475,
          43.6227,
          43.6048,
          43.5936,
          43.5893
        ],
        "previous": [
          48.8817,
          48.6478,
          48.4179,
          48.1923,
          47.971,
          47.7541,
          47.5418,
          47.3341,
          47.1311,
          46.9329,
          46.7396,
          46.5514,
          46.3682,
          46.1902,
          46.0175,
          45.8501,
          45.6881,
          45.5317,
          45.3808,
          45.2355,
          45.0959,
          44.9621,
          44.8341,
          44.712,
          44.5958,
          44.4856,
          44.3813,
          44.2831,
          44.191,
          44.1049,
          44.025,
          43.9512,
          43.8836,
          43.822,
          43.7667,
          43.7174,
          43.6743,
          43.6374,
          43.6065,
          43.5817,
          43.5629
        ],
        "change": [
          -0.1248,
          -0.1269,
          -0.1287,
          -0.1305,
          -0.1322,
          -0.1338,
          -0.1353,
          -0.1367,
          -0.1379,
          -0.1389,
          -0.1397,
          -0.1404,
          -0.1407,
          -0.1409,
          -0.1408,
          -0.1404,
          -0.1396,
          -0.1386,
          -0.1372,
          -0.1354,
          -0.1332,
          -0.1307,
          -0.1276,
          -0.1241,
          -0.1202,
          -0.1157,
          -0.1106,
          -0.1051,
          -0.099,
          -0.0922,
          -0.0848,
          -0.0769,
          -0.0683,
          -0.0589,
          -0.049,
          -0.0382,
          -0.0268,
          -0.0147,
          -0.0017,
          0.0119,
          0.0264
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.119,
        "rotation": 0.055,
        "wingChange": 0.021,
        "rmsChange": 0.114
      }
    }
  ],
  "events": [
    {
      "type": "rotation",
      "title": "Largest eligible smile rotation",
      "label": "26JUN26",
      "value": -1.137,
      "score": 1.137,
      "unit": "volatility points"
    },
    {
      "type": "atmIv",
      "title": "Largest standard-tenor ATM IV move",
      "label": "2W",
      "value": -1.02,
      "score": 1.02,
      "unit": "volatility points"
    },
    {
      "type": "rr25",
      "title": "Largest standard-tenor RR25 move",
      "label": "1M",
      "value": -0.58,
      "score": 0.58,
      "unit": "volatility points"
    },
    {
      "type": "bf25",
      "title": "Largest standard-tenor BF25 move",
      "label": "1W",
      "value": 0.29,
      "score": 0.29,
      "unit": "volatility points"
    },
    {
      "type": "sigma",
      "title": "Largest eligible SVI sigma move",
      "label": "10MAY26",
      "value": -0.2272,
      "score": 0.2272,
      "unit": "parameter units"
    },
    {
      "type": "rho",
      "title": "Largest eligible SVI rho move",
      "label": "25SEP26",
      "value": 0.2032,
      "score": 0.2032,
      "unit": "parameter units"
    }
  ],
  "expiryEffects": [
    {
      "label": "9MAY26",
      "daysToExpiry": 1.334,
      "metric": "Smile rotation",
      "value": 3.781,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    },
    {
      "label": "8MAY26",
      "daysToExpiry": 0.334,
      "metric": "ATM IV change",
      "value": -1.13,
      "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": 301.58776456,
      "metric": "vega",
      "availability": "available"
    },
    "highestGamma": {
      "label": "8MAY26",
      "expiry": 1778227200000,
      "value": 0.000505491967,
      "metric": "gamma",
      "availability": "available"
    },
    "highestThetaDecay": {
      "label": "8MAY26",
      "expiry": 1778227200000,
      "value": -471.28110352,
      "metric": "theta",
      "availability": "available"
    },
    "highestVanna": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 0.00183435,
      "metric": "vanna",
      "availability": "available"
    },
    "highestVolga": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": -29.48986737,
      "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": "8MAY26",
        "values": [
          152.9606,
          145.6765,
          138.2842,
          130.784,
          123.1765,
          115.4619,
          107.6408,
          99.7139,
          91.6809,
          83.5423,
          75.2976,
          66.947,
          58.4913,
          49.9347,
          41.2898,
          32.5891,
          23.9142,
          15.4601,
          7.685,
          1.5894,
          -1.1342,
          0.7948,
          6.57,
          14.3766,
          22.9769,
          31.7878,
          40.5686,
          49.2283,
          57.7372,
          66.0902,
          74.2906,
          82.3443,
          90.2574,
          98.0349,
          105.6811,
          113.1997,
          120.5932,
          127.8642,
          135.0146,
          142.0461,
          148.9603
        ]
      },
      {
        "label": "9MAY26",
        "values": [
          39.369,
          37.5403,
          35.6534,
          33.7075,
          31.7019,
          29.6361,
          27.51,
          25.3235,
          23.077,
          20.7717,
          18.4093,
          15.9933,
          13.5302,
          11.0312,
          8.5171,
          6.0251,
          3.6232,
          1.4288,
          -0.3677,
          -1.5037,
          -1.7164,
          -0.8924,
          0.8365,
          3.1815,
          5.8569,
          8.6633,
          11.4864,
          14.269,
          16.9856,
          19.6267,
          22.1902,
          24.6772,
          27.0901,
          29.4315,
          31.7037,
          33.9092,
          36.0498,
          38.1277,
          40.1443,
          42.1015,
          44.0008
        ]
      },
      {
        "label": "10MAY26",
        "values": [
          24.4431,
          23.3584,
          22.228,
          21.0505,
          19.8247,
          18.5497,
          17.2245,
          15.8479,
          14.4196,
          12.9387,
          11.4051,
          9.8195,
          8.1841,
          6.5041,
          4.7904,
          3.0654,
          1.3718,
          -0.2135,
          -1.5634,
          -2.5005,
          -2.8415,
          -2.4929,
          -1.519,
          -0.0994,
          1.5726,
          3.353,
          5.1544,
          6.9298,
          8.6573,
          10.327,
          11.9361,
          13.4846,
          14.9737,
          16.4054,
          17.7815,
          19.1042,
          20.3751,
          21.5962,
          22.7691,
          23.8956,
          24.9772
        ]
      },
      {
        "label": "15MAY26",
        "values": [
          6.7396,
          6.3909,
          6.0289,
          5.6534,
          5.2643,
          4.8617,
          4.4458,
          4.0172,
          3.5768,
          3.126,
          2.6669,
          2.2024,
          1.7368,
          1.2757,
          0.8264,
          0.3987,
          0.0044,
          -0.3423,
          -0.6253,
          -0.8285,
          -0.937,
          -0.9391,
          -0.8297,
          -0.6096,
          -0.2865,
          0.1268,
          0.6151,
          1.1624,
          1.7539,
          2.3767,
          3.0205,
          3.6769,
          4.3396,
          5.0041,
          5.6669,
          6.3254,
          6.9779,
          7.6232,
          8.2604,
          8.8887,
          9.5078
        ]
      },
      {
        "label": "22MAY26",
        "values": [
          2.1104,
          1.9767,
          1.8371,
          1.6919,
          1.5407,
          1.3838,
          1.2211,
          1.0529,
          0.8793,
          0.7012,
          0.519,
          0.3338,
          0.1468,
          -0.0404,
          -0.2258,
          -0.407,
          -0.5812,
          -0.7449,
          -0.8948,
          -1.0267,
          -1.1367,
          -1.2209,
          -1.2761,
          -1.2993,
          -1.2887,
          -1.2434,
          -1.1638,
          -1.051,
          -0.9069,
          -0.7343,
          -0.5361,
          -0.3156,
          -0.076,
          0.1799,
          0.4491,
          0.7294,
          1.0184,
          1.3146,
          1.616,
          1.9216,
          2.23
        ]
      },
      {
        "label": "29MAY26",
        "values": [
          -0.4067,
          -0.4073,
          -0.4096,
          -0.4138,
          -0.42,
          -0.4285,
          -0.4397,
          -0.4537,
          -0.4707,
          -0.4912,
          -0.5151,
          -0.543,
          -0.575,
          -0.6111,
          -0.6514,
          -0.6962,
          -0.7451,
          -0.7982,
          -0.8548,
          -0.9147,
          -0.9773,
          -1.0415,
          -1.1067,
          -1.1717,
          -1.2355,
          -1.297,
          -1.3551,
          -1.4089,
          -1.4575,
          -1.5002,
          -1.5365,
          -1.5658,
          -1.5881,
          -1.6032,
          -1.6111,
          -1.6119,
          -1.6058,
          -1.593,
          -1.5738,
          -1.5483,
          -1.5168
        ]
      },
      {
        "label": "26JUN26",
        "values": [
          0.2701,
          0.2731,
          0.274,
          0.2725,
          0.2682,
          0.2612,
          0.2513,
          0.238,
          0.2214,
          0.2011,
          0.1771,
          0.1492,
          0.1174,
          0.0816,
          0.0418,
          -0.0021,
          -0.0499,
          -0.1017,
          -0.1569,
          -0.2155,
          -0.2772,
          -0.3417,
          -0.4084,
          -0.4769,
          -0.5466,
          -0.6171,
          -0.6877,
          -0.7578,
          -0.8269,
          -0.8944,
          -0.9598,
          -1.0224,
          -1.0818,
          -1.1375,
          -1.1892,
          -1.2366,
          -1.2792,
          -1.3169,
          -1.3495,
          -1.377,
          -1.3991
        ]
      },
      {
        "label": "31JUL26",
        "values": [
          0.0992,
          0.0811,
          0.0625,
          0.0433,
          0.0233,
          0.0028,
          -0.0183,
          -0.04,
          -0.0622,
          -0.085,
          -0.1082,
          -0.1318,
          -0.1559,
          -0.18,
          -0.2046,
          -0.2291,
          -0.2537,
          -0.2782,
          -0.3026,
          -0.3266,
          -0.3501,
          -0.3732,
          -0.3955,
          -0.417,
          -0.4375,
          -0.4568,
          -0.4749,
          -0.4916,
          -0.5068,
          -0.5204,
          -0.532,
          -0.5419,
          -0.5497,
          -0.5554,
          -0.559,
          -0.5602,
          -0.5592,
          -0.5558,
          -0.5499,
          -0.5416,
          -0.5308
        ]
      },
      {
        "label": "25SEP26",
        "values": [
          0.2397,
          0.2167,
          0.1925,
          0.1671,
          0.1408,
          0.1135,
          0.0855,
          0.057,
          0.0277,
          -0.0019,
          -0.0318,
          -0.0619,
          -0.0918,
          -0.1217,
          -0.1511,
          -0.18,
          -0.2083,
          -0.2357,
          -0.262,
          -0.287,
          -0.3106,
          -0.3327,
          -0.3529,
          -0.3713,
          -0.3874,
          -0.4012,
          -0.4125,
          -0.4214,
          -0.4273,
          -0.4304,
          -0.4305,
          -0.4274,
          -0.4211,
          -0.4114,
          -0.3983,
          -0.3819,
          -0.3618,
          -0.3382,
          -0.311,
          -0.2802,
          -0.2459
        ]
      },
      {
        "label": "25DEC26",
        "values": [
          -0.1178,
          -0.1245,
          -0.1311,
          -0.1376,
          -0.1439,
          -0.15,
          -0.156,
          -0.1617,
          -0.1671,
          -0.1723,
          -0.1771,
          -0.1814,
          -0.1853,
          -0.1888,
          -0.1916,
          -0.194,
          -0.1957,
          -0.1967,
          -0.197,
          -0.1966,
          -0.1954,
          -0.1934,
          -0.1904,
          -0.1865,
          -0.1815,
          -0.1756,
          -0.1687,
          -0.1606,
          -0.1514,
          -0.141,
          -0.1294,
          -0.1166,
          -0.1025,
          -0.0872,
          -0.0705,
          -0.0526,
          -0.0331,
          -0.0125,
          0.0096,
          0.0331,
          0.0579
        ]
      },
      {
        "label": "26MAR27",
        "values": [
          -0.1248,
          -0.1269,
          -0.1287,
          -0.1305,
          -0.1322,
          -0.1338,
          -0.1353,
          -0.1367,
          -0.1379,
          -0.1389,
          -0.1397,
          -0.1404,
          -0.1407,
          -0.1409,
          -0.1408,
          -0.1404,
          -0.1396,
          -0.1386,
          -0.1372,
          -0.1354,
          -0.1332,
          -0.1307,
          -0.1276,
          -0.1241,
          -0.1202,
          -0.1157,
          -0.1106,
          -0.1051,
          -0.099,
          -0.0922,
          -0.0848,
          -0.0769,
          -0.0683,
          -0.0589,
          -0.049,
          -0.0382,
          -0.0268,
          -0.0147,
          -0.0017,
          0.0119,
          0.0264
        ]
      }
    ]
  }
}
