{
  "schemaVersion": 2,
  "reportDate": "2026-05-24",
  "generatedAt": "2026-07-25T18:42:34+00:00",
  "currentSnapshotAt": "2026-05-24T23:59:00+00:00",
  "previousSnapshotAt": "2026-05-23T23:59:00+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": 0.1397739,
    "previousObjective": 0.06527539,
    "currentLiveError": 180.27271974,
    "previousLiveError": 110.73432709
  },
  "coverage": {
    "currentListedExpiries": 12,
    "previousListedExpiries": 12,
    "comparedListedExpiries": 11,
    "addedExpiries": [
      "28MAY26"
    ],
    "removedExpiries": [
      "24MAY26"
    ],
    "fixedTenors": [
      "1W",
      "2W",
      "1M",
      "3M",
      "6M",
      "9M",
      "1Y"
    ]
  },
  "commentary": {
    "source": "deterministic",
    "model": null,
    "headline": "BTC daily surface: 1W ATM IV falls 1.59 volatility points",
    "executiveSummary": "Across the six headline tenors, ATM IV averaged -0.64 volatility points, RR25 +0.03 volatility points and BF25 -0.04 volatility points between the stored endpoints.",
    "takeaways": [
      {
        "id": "front-atm",
        "label": "Front end",
        "text": "Front-end ATM IV decreased, averaging -1.12 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 was broadly unchanged, averaging +0.03 volatility points across the six headline tenors."
      },
      {
        "id": "bf25",
        "label": "Convexity",
        "text": "BF25 was broadly unchanged, averaging -0.04 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 -1.59 volatility points at 1W.",
        "tenor": "1W",
        "value": -1.59
      }
    ],
    "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 -1.12 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 was broadly unchanged, averaging +0.03 volatility points across the six headline tenors."
    },
    {
      "id": "bf25",
      "label": "Convexity",
      "text": "BF25 was broadly unchanged, averaging -0.04 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 -1.59 volatility points at 1W.",
      "tenor": "1W",
      "value": -1.59
    }
  ],
  "summaryMetrics": {
    "basis": "Average change across 1W, 2W, 1M, 3M, 6M and 1Y",
    "unit": "volatility points",
    "atmIvChange": -0.64,
    "rr25Change": 0.03,
    "bf25Change": -0.04
  },
  "tenors": [
    {
      "tenor": "1W",
      "targetExpiry": 1780271944243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 32.96,
        "previous": 34.55,
        "change": -1.59,
        "percentChange": -4.6
      },
      "rr25": {
        "current": -4.07,
        "previous": -4.13,
        "change": 0.06,
        "percentChange": 1.45
      },
      "bf25": {
        "current": 1.73,
        "previous": 1.69,
        "change": 0.04,
        "percentChange": 2.37
      }
    },
    {
      "tenor": "2W",
      "targetExpiry": 1780876744243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 32.99,
        "previous": 34.09,
        "change": -1.1,
        "percentChange": -3.23
      },
      "rr25": {
        "current": -4.83,
        "previous": -4.82,
        "change": -0.01,
        "percentChange": -0.21
      },
      "bf25": {
        "current": 1.81,
        "previous": 1.78,
        "change": 0.03,
        "percentChange": 1.69
      }
    },
    {
      "tenor": "1M",
      "targetExpiry": 1782259144243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 34.13,
        "previous": 34.79,
        "change": -0.66,
        "percentChange": -1.9
      },
      "rr25": {
        "current": -5.14,
        "previous": -5.07,
        "change": -0.07,
        "percentChange": -1.38
      },
      "bf25": {
        "current": 2.06,
        "previous": 2.09,
        "change": -0.03,
        "percentChange": -1.44
      }
    },
    {
      "tenor": "3M",
      "targetExpiry": 1787529544243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.24,
        "previous": 37.39,
        "change": -0.15,
        "percentChange": -0.4
      },
      "rr25": {
        "current": -5.07,
        "previous": -5.16,
        "change": 0.09,
        "percentChange": 1.74
      },
      "bf25": {
        "current": 2.25,
        "previous": 2.36,
        "change": -0.11,
        "percentChange": -4.66
      }
    },
    {
      "tenor": "6M",
      "targetExpiry": 1795391944243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 40.85,
        "previous": 40.93,
        "change": -0.08,
        "percentChange": -0.2
      },
      "rr25": {
        "current": -4.92,
        "previous": -4.9,
        "change": -0.02,
        "percentChange": -0.41
      },
      "bf25": {
        "current": 2.42,
        "previous": 2.46,
        "change": -0.04,
        "percentChange": -1.63
      }
    },
    {
      "tenor": "9M",
      "targetExpiry": 1803254344243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 42.6,
        "previous": 42.77,
        "change": -0.17,
        "percentChange": -0.4
      },
      "rr25": {
        "current": -4.65,
        "previous": -4.71,
        "change": 0.06,
        "percentChange": 1.27
      },
      "bf25": {
        "current": 2.37,
        "previous": 2.45,
        "change": -0.08,
        "percentChange": -3.27
      }
    },
    {
      "tenor": "1Y",
      "targetExpiry": 1811203144243,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 43.46,
        "previous": 43.69,
        "change": -0.23,
        "percentChange": -0.53
      },
      "rr25": {
        "current": -4.44,
        "previous": -4.55,
        "change": 0.11,
        "percentChange": 2.42
      },
      "bf25": {
        "current": 2.3,
        "previous": 2.43,
        "change": -0.13,
        "percentChange": -5.35
      }
    }
  ],
  "listedExpiries": [
    {
      "label": "25MAY26",
      "expiry": 1779696000000,
      "tauYears": 0.00091519,
      "daysToExpiry": 0.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 76990.15,
        "previous": 76685.11,
        "change": 305.04,
        "percentChange": 0.4
      },
      "atmIv": {
        "current": 35.49,
        "previous": 32.48,
        "change": 3.01,
        "percentChange": 9.27
      },
      "rr25": {
        "current": -3.84,
        "previous": -2.35,
        "change": -1.49,
        "percentChange": -63.4
      },
      "bf25": {
        "current": 0.62,
        "previous": 1.35,
        "change": -0.73,
        "percentChange": -54.07
      },
      "svi": {
        "a": {
          "current": -0.1084,
          "previous": -0.0431,
          "change": -0.0653,
          "percentChange": -151.64
        },
        "b": {
          "current": 0.0849,
          "previous": 0.0882,
          "change": -0.0033,
          "percentChange": -3.76
        },
        "rho": {
          "current": -0.1485,
          "previous": -0.1348,
          "change": -0.0137,
          "percentChange": -10.17
        },
        "m": {
          "current": -0.1675,
          "previous": -0.0558,
          "change": -0.1117,
          "percentChange": -200.23
        },
        "sigma": {
          "current": 1.2928,
          "previous": 0.4973,
          "change": 0.7955,
          "percentChange": 159.97
        }
      },
      "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": [
          197.0985,
          188.2616,
          179.4337,
          170.6176,
          161.8167,
          153.0345,
          144.2755,
          135.545,
          126.8495,
          118.1971,
          109.5981,
          101.0658,
          92.6181,
          84.2796,
          76.0844,
          68.0822,
          60.3468,
          52.991,
          46.1912,
          40.2237,
          35.5017,
          32.5615,
          31.888,
          33.6062,
          37.3766,
          42.648,
          48.9281,
          55.869,
          63.2454,
          70.9137,
          78.7817,
          86.7884,
          94.8922,
          103.0641,
          111.2835,
          119.5349,
          127.8069,
          136.0907,
          144.3793,
          152.6672,
          160.9501
        ],
        "previous": [
          154.1235,
          147.3441,
          140.5286,
          133.6821,
          126.8102,
          119.92,
          113.0195,
          106.1186,
          99.2289,
          92.3651,
          85.5451,
          78.792,
          72.1355,
          65.6153,
          59.2858,
          53.2225,
          47.533,
          42.371,
          37.9513,
          34.5549,
          32.4939,
          32.0126,
          33.1617,
          35.764,
          39.5122,
          44.0933,
          49.2543,
          54.8109,
          60.6345,
          66.636,
          72.7532,
          78.942,
          85.1706,
          91.4153,
          97.6587,
          103.8875,
          110.0912,
          116.2621,
          122.3939,
          128.4819,
          134.5221
        ],
        "change": [
          42.975,
          40.9175,
          38.9051,
          36.9355,
          35.0065,
          33.1145,
          31.256,
          29.4264,
          27.6206,
          25.832,
          24.053,
          22.2738,
          20.4826,
          18.6643,
          16.7986,
          14.8597,
          12.8138,
          10.62,
          8.2399,
          5.6688,
          3.0078,
          0.5489,
          -1.2737,
          -2.1578,
          -2.1356,
          -1.4453,
          -0.3262,
          1.0581,
          2.6109,
          4.2777,
          6.0285,
          7.8464,
          9.7216,
          11.6488,
          13.6248,
          15.6474,
          17.7157,
          19.8286,
          21.9854,
          24.1853,
          26.428
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 11.03,
        "rotation": -18.025,
        "wingChange": 12.033,
        "rmsChange": 20.951
      }
    },
    {
      "label": "26MAY26",
      "expiry": 1779782400000,
      "tauYears": 0.00365491,
      "daysToExpiry": 1.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 76999.92,
        "previous": 76677.17,
        "change": 322.75,
        "percentChange": 0.42
      },
      "atmIv": {
        "current": 32.65,
        "previous": 34.02,
        "change": -1.37,
        "percentChange": -4.03
      },
      "rr25": {
        "current": -2.04,
        "previous": -3.1,
        "change": 1.06,
        "percentChange": 34.19
      },
      "bf25": {
        "current": 1.46,
        "previous": 1.78,
        "change": -0.32,
        "percentChange": -17.98
      },
      "svi": {
        "a": {
          "current": -0.0407,
          "previous": -0.0453,
          "change": 0.0046,
          "percentChange": 10.06
        },
        "b": {
          "current": 0.0882,
          "previous": 0.0998,
          "change": -0.0116,
          "percentChange": -11.59
        },
        "rho": {
          "current": -0.1121,
          "previous": -0.0991,
          "change": -0.013,
          "percentChange": -13.11
        },
        "m": {
          "current": -0.0433,
          "previous": -0.0294,
          "change": -0.0139,
          "percentChange": -47.25
        },
        "sigma": {
          "current": 0.4688,
          "previous": 0.463,
          "change": 0.0057,
          "percentChange": 1.23
        }
      },
      "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": [
          156.7494,
          149.8809,
          142.9669,
          136.0122,
          129.0225,
          122.0048,
          114.9672,
          107.9196,
          100.8742,
          93.8461,
          86.8542,
          79.9225,
          73.0827,
          66.377,
          59.8635,
          53.624,
          47.7754,
          42.4864,
          37.9941,
          34.6082,
          32.6671,
          32.4183,
          33.8819,
          36.8343,
          40.9331,
          45.8497,
          51.3273,
          57.1832,
          63.2912,
          69.5646,
          75.9428,
          82.3831,
          88.8542,
          95.3334,
          101.8035,
          108.2514,
          114.6671,
          121.0429,
          127.3729,
          133.6522,
          139.8774
        ],
        "previous": [
          130.7458,
          125.3225,
          119.8661,
          114.381,
          108.8727,
          103.3475,
          97.8132,
          92.2793,
          86.7573,
          81.2614,
          75.809,
          70.4226,
          65.1302,
          59.9685,
          54.9854,
          50.2443,
          45.8292,
          41.8507,
          38.4493,
          35.7916,
          34.0507,
          33.3652,
          33.7908,
          35.276,
          37.6823,
          40.8327,
          44.554,
          48.6998,
          53.155,
          57.8326,
          62.6677,
          67.6118,
          72.6288,
          77.691,
          82.7776,
          87.8722,
          92.9623,
          98.038,
          103.0914,
          108.1164,
          113.108
        ],
        "change": [
          26.0036,
          24.5584,
          23.1008,
          21.6312,
          20.1498,
          18.6573,
          17.154,
          15.6403,
          14.1169,
          12.5847,
          11.0452,
          9.4999,
          7.9525,
          6.4085,
          4.8781,
          3.3797,
          1.9462,
          0.6357,
          -0.4552,
          -1.1834,
          -1.3836,
          -0.9469,
          0.0911,
          1.5583,
          3.2508,
          5.017,
          6.7733,
          8.4834,
          10.1362,
          11.732,
          13.2751,
          14.7713,
          16.2254,
          17.6424,
          19.0259,
          20.3792,
          21.7048,
          23.0049,
          24.2815,
          25.5358,
          26.7694
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 7.646,
        "rotation": 2.23,
        "wingChange": 13.544,
        "rmsChange": 15.136
      }
    },
    {
      "label": "27MAY26",
      "expiry": 1779868800000,
      "tauYears": 0.00639464,
      "daysToExpiry": 2.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77003.13,
        "previous": 76670.88,
        "change": 332.25,
        "percentChange": 0.43
      },
      "atmIv": {
        "current": 33.14,
        "previous": 33.82,
        "change": -0.68,
        "percentChange": -2.01
      },
      "rr25": {
        "current": -2.55,
        "previous": -2.36,
        "change": -0.19,
        "percentChange": -8.05
      },
      "bf25": {
        "current": 1.65,
        "previous": 1.8,
        "change": -0.15,
        "percentChange": -8.33
      },
      "svi": {
        "a": {
          "current": -0.0569,
          "previous": -0.0455,
          "change": -0.0114,
          "percentChange": -25.02
        },
        "b": {
          "current": 0.1104,
          "previous": 0.1026,
          "change": 0.0077,
          "percentChange": 7.54
        },
        "rho": {
          "current": -0.1386,
          "previous": -0.1134,
          "change": -0.0252,
          "percentChange": -22.26
        },
        "m": {
          "current": -0.0592,
          "previous": -0.0372,
          "change": -0.022,
          "percentChange": -59.23
        },
        "sigma": {
          "current": 0.5267,
          "previous": 0.4562,
          "change": 0.0704,
          "percentChange": 15.44
        }
      },
      "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": [
          129.4208,
          123.8657,
          118.2917,
          112.7038,
          107.1077,
          101.5104,
          95.9201,
          90.3463,
          84.8008,
          79.298,
          73.8555,
          68.4955,
          63.2466,
          58.1455,
          53.2405,
          48.5956,
          44.296,
          40.453,
          37.2074,
          34.7233,
          33.1657,
          32.6582,
          33.2374,
          34.8359,
          37.3087,
          40.4813,
          44.1883,
          48.2921,
          52.6858,
          57.2888,
          62.0411,
          66.8982,
          71.8266,
          76.801,
          81.802,
          86.8147,
          91.8274,
          96.8308,
          101.8176,
          106.782,
          111.7194
        ],
        "previous": [
          112.6578,
          108.0642,
          103.4483,
          98.8149,
          94.1698,
          89.5198,
          84.8731,
          80.2396,
          75.6314,
          71.0632,
          66.5531,
          62.1235,
          57.8024,
          53.6254,
          49.6372,
          45.8947,
          42.469,
          39.4474,
          36.9317,
          35.0309,
          33.8464,
          33.449,
          33.8587,
          35.0375,
          36.9005,
          39.3382,
          42.2381,
          45.4988,
          49.035,
          52.7782,
          56.6746,
          60.6824,
          64.769,
          68.9093,
          73.0833,
          77.2755,
          81.4736,
          85.6679,
          89.8505,
          94.0152,
          98.1571
        ],
        "change": [
          16.763,
          15.8015,
          14.8434,
          13.8889,
          12.9379,
          11.9906,
          11.047,
          10.1067,
          9.1694,
          8.2348,
          7.3024,
          6.372,
          5.4442,
          4.5201,
          3.6033,
          2.7009,
          1.827,
          1.0056,
          0.2757,
          -0.3076,
          -0.6807,
          -0.7908,
          -0.6213,
          -0.2016,
          0.4082,
          1.1431,
          1.9502,
          2.7933,
          3.6508,
          4.5106,
          5.3665,
          6.2158,
          7.0576,
          7.8917,
          8.7187,
          9.5392,
          10.3538,
          11.1629,
          11.9671,
          12.7668,
          13.5623
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 3.996,
        "rotation": -1.936,
        "wingChange": 7.015,
        "rmsChange": 8.434
      }
    },
    {
      "label": "29MAY26",
      "expiry": 1780041600000,
      "tauYears": 0.01187409,
      "daysToExpiry": 4.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77006.79,
        "previous": 76672.55,
        "change": 334.24,
        "percentChange": 0.44
      },
      "atmIv": {
        "current": 33.52,
        "previous": 34.9,
        "change": -1.38,
        "percentChange": -3.95
      },
      "rr25": {
        "current": -3.55,
        "previous": -3.71,
        "change": 0.16,
        "percentChange": 4.31
      },
      "bf25": {
        "current": 1.77,
        "previous": 1.71,
        "change": 0.06,
        "percentChange": 3.51
      },
      "svi": {
        "a": {
          "current": -0.0784,
          "previous": -0.0797,
          "change": 0.0013,
          "percentChange": 1.6
        },
        "b": {
          "current": 0.1317,
          "previous": 0.127,
          "change": 0.0047,
          "percentChange": 3.67
        },
        "rho": {
          "current": -0.1347,
          "previous": -0.0545,
          "change": -0.0802,
          "percentChange": -147.05
        },
        "m": {
          "current": -0.0564,
          "previous": -0.0018,
          "change": -0.0546,
          "percentChange": -2954.59
        },
        "sigma": {
          "current": 0.6109,
          "previous": 0.6418,
          "change": -0.0309,
          "percentChange": -4.81
        }
      },
      "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": [
          102.4797,
          98.3807,
          94.2813,
          90.186,
          86.0999,
          82.0288,
          77.9798,
          73.9608,
          69.9817,
          66.0538,
          62.1912,
          58.4108,
          54.7333,
          51.1842,
          47.7949,
          44.6041,
          41.659,
          39.0159,
          36.7398,
          34.9013,
          33.5698,
          32.8036,
          32.6378,
          33.0757,
          34.0878,
          35.6182,
          37.5963,
          39.9481,
          42.6042,
          45.5038,
          48.5958,
          51.8384,
          55.198,
          58.6476,
          62.1654,
          65.7343,
          69.34,
          72.9714,
          76.6191,
          80.2755,
          83.9344
        ],
        "previous": [
          91.4712,
          88.0807,
          84.6923,
          81.3098,
          77.9379,
          74.5818,
          71.2478,
          67.9431,
          64.6763,
          61.4577,
          58.2992,
          55.2152,
          52.223,
          49.343,
          46.5999,
          44.0225,
          41.6448,
          39.5055,
          37.6476,
          36.1159,
          34.9546,
          34.2016,
          33.8836,
          34.0118,
          34.5791,
          35.5623,
          36.9249,
          38.6235,
          40.612,
          42.8459,
          45.2848,
          47.8929,
          50.6394,
          53.4987,
          56.449,
          59.4722,
          62.5535,
          65.6802,
          68.842,
          72.0301,
          75.2372
        ],
        "change": [
          11.0085,
          10.3,
          9.589,
          8.8762,
          8.162,
          7.447,
          6.732,
          6.0177,
          5.3054,
          4.5961,
          3.892,
          3.1956,
          2.5103,
          1.8412,
          1.195,
          0.5816,
          0.0142,
          -0.4896,
          -0.9078,
          -1.2146,
          -1.3848,
          -1.398,
          -1.2458,
          -0.9361,
          -0.4913,
          0.0559,
          0.6714,
          1.3246,
          1.9922,
          2.6579,
          3.311,
          3.9455,
          4.5586,
          5.1489,
          5.7164,
          6.2621,
          6.7865,
          7.2912,
          7.7771,
          8.2454,
          8.6972
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 1.939,
        "rotation": -0.581,
        "wingChange": 4.986,
        "rmsChange": 5.317
      }
    },
    {
      "label": "5JUN26",
      "expiry": 1780646400000,
      "tauYears": 0.03105217,
      "daysToExpiry": 11.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77030.96,
        "previous": 76678.93,
        "change": 352.03,
        "percentChange": 0.46
      },
      "atmIv": {
        "current": 32.61,
        "previous": 34.05,
        "change": -1.44,
        "percentChange": -4.23
      },
      "rr25": {
        "current": -4.41,
        "previous": -4.71,
        "change": 0.3,
        "percentChange": 6.37
      },
      "bf25": {
        "current": 1.69,
        "previous": 1.67,
        "change": 0.02,
        "percentChange": 1.2
      },
      "svi": {
        "a": {
          "current": -0.0956,
          "previous": -0.0884,
          "change": -0.0072,
          "percentChange": -8.1
        },
        "b": {
          "current": 0.1422,
          "previous": 0.1339,
          "change": 0.0082,
          "percentChange": 6.15
        },
        "rho": {
          "current": -0.0632,
          "previous": 0.0002,
          "change": -0.0634,
          "percentChange": -36786.02
        },
        "m": {
          "current": 0.0118,
          "previous": 0.066,
          "change": -0.0541,
          "percentChange": -82.04
        },
        "sigma": {
          "current": 0.6948,
          "previous": 0.6864,
          "change": 0.0083,
          "percentChange": 1.21
        }
      },
      "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": [
          70.6483,
          68.3534,
          66.066,
          63.7891,
          61.526,
          59.2804,
          57.0566,
          54.8595,
          52.6946,
          50.5684,
          48.4881,
          46.4621,
          44.5,
          42.6125,
          40.8121,
          39.1124,
          37.529,
          36.0786,
          34.779,
          33.6488,
          32.7062,
          31.9683,
          31.4495,
          31.1606,
          31.1075,
          31.2903,
          31.7039,
          32.3379,
          33.1779,
          34.207,
          35.4064,
          36.7573,
          38.2413,
          39.8409,
          41.5405,
          43.3257,
          45.1837,
          47.1035,
          49.0752,
          51.0904,
          53.1416
        ],
        "previous": [
          68.2976,
          66.253,
          64.2147,
          62.1853,
          60.1678,
          58.1653,
          56.1817,
          54.2213,
          52.2888,
          50.3897,
          48.5304,
          46.7177,
          44.9597,
          43.2653,
          41.6445,
          40.1085,
          38.6695,
          37.3407,
          36.1362,
          35.0705,
          34.1582,
          33.4131,
          32.8477,
          32.4722,
          32.2938,
          32.316,
          32.5383,
          32.9565,
          33.5626,
          34.3458,
          35.2933,
          36.391,
          37.6243,
          38.9787,
          40.4404,
          41.9963,
          43.6344,
          45.3438,
          47.1149,
          48.9387,
          50.8077
        ],
        "change": [
          2.3507,
          2.1004,
          1.8513,
          1.6038,
          1.3582,
          1.1151,
          0.8749,
          0.6382,
          0.4058,
          0.1787,
          -0.0423,
          -0.2556,
          -0.4597,
          -0.6528,
          -0.8324,
          -0.9961,
          -1.1405,
          -1.2621,
          -1.3572,
          -1.4217,
          -1.452,
          -1.4448,
          -1.3982,
          -1.3116,
          -1.1863,
          -1.0257,
          -0.8344,
          -0.6186,
          -0.3847,
          -0.1388,
          0.1131,
          0.3663,
          0.617,
          0.8622,
          1.1001,
          1.3294,
          1.5493,
          1.7597,
          1.9603,
          2.1517,
          2.3339
        ],
        "classification": [
          "wing steepening"
        ],
        "parallelShift": -0.46,
        "rotation": 0.155,
        "wingChange": 1.487,
        "rmsChange": 1.257
      }
    },
    {
      "label": "12JUN26",
      "expiry": 1781251200000,
      "tauYears": 0.05023025,
      "daysToExpiry": 18.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77057.64,
        "previous": 76699.52,
        "change": 358.12,
        "percentChange": 0.47
      },
      "atmIv": {
        "current": 33.37,
        "previous": 34.17,
        "change": -0.8,
        "percentChange": -2.34
      },
      "rr25": {
        "current": -5.24,
        "previous": -5.03,
        "change": -0.21,
        "percentChange": -4.17
      },
      "bf25": {
        "current": 1.92,
        "previous": 2.01,
        "change": -0.09,
        "percentChange": -4.48
      },
      "svi": {
        "a": {
          "current": -0.0956,
          "previous": -0.0801,
          "change": -0.0155,
          "percentChange": -19.36
        },
        "b": {
          "current": 0.1516,
          "previous": 0.1459,
          "change": 0.0057,
          "percentChange": 3.9
        },
        "rho": {
          "current": 0.0029,
          "previous": 0.081,
          "change": -0.0782,
          "percentChange": -96.44
        },
        "m": {
          "current": 0.0785,
          "previous": 0.1199,
          "change": -0.0414,
          "percentChange": -34.53
        },
        "sigma": {
          "current": 0.6633,
          "previous": 0.5893,
          "change": 0.0741,
          "percentChange": 12.57
        }
      },
      "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": [
          63.1453,
          61.3812,
          59.6228,
          57.8723,
          56.1323,
          54.4056,
          52.6953,
          51.005,
          49.3389,
          47.7013,
          46.0975,
          44.5331,
          43.0144,
          41.5485,
          40.1434,
          38.8075,
          37.5502,
          36.3815,
          35.3121,
          34.3527,
          33.5143,
          32.8076,
          32.2423,
          31.8268,
          31.5677,
          31.4694,
          31.5335,
          31.759,
          32.1421,
          32.6768,
          33.3551,
          34.1673,
          35.1032,
          36.1517,
          37.302,
          38.5434,
          39.8658,
          41.2597,
          42.7162,
          44.2275,
          45.7862
        ],
        "previous": [
          62.2455,
          60.5894,
          58.9368,
          57.2898,
          55.6508,
          54.0226,
          52.4083,
          50.8115,
          49.2362,
          47.6869,
          46.1687,
          44.6875,
          43.2495,
          41.862,
          40.5328,
          39.2706,
          38.0848,
          36.9855,
          35.9833,
          35.089,
          34.3135,
          33.6674,
          33.1603,
          32.8006,
          32.5948,
          32.5471,
          32.6593,
          32.9306,
          33.3576,
          33.9344,
          34.6536,
          35.5059,
          36.4814,
          37.5695,
          38.7596,
          40.0413,
          41.4046,
          42.8401,
          44.3389,
          45.8931,
          47.4953
        ],
        "change": [
          0.8998,
          0.7918,
          0.686,
          0.5825,
          0.4815,
          0.383,
          0.287,
          0.1935,
          0.1027,
          0.0144,
          -0.0712,
          -0.1544,
          -0.2351,
          -0.3135,
          -0.3894,
          -0.4631,
          -0.5346,
          -0.604,
          -0.6712,
          -0.7363,
          -0.7992,
          -0.8598,
          -0.918,
          -0.9738,
          -1.0271,
          -1.0777,
          -1.1258,
          -1.1716,
          -1.2155,
          -1.2576,
          -1.2985,
          -1.3386,
          -1.3782,
          -1.4178,
          -1.4576,
          -1.4979,
          -1.5388,
          -1.5804,
          -1.6227,
          -1.6656,
          -1.7091
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": -0.723,
        "rotation": -1.227,
        "wingChange": 0.114,
        "rmsChange": 1.0
      }
    },
    {
      "label": "26JUN26",
      "expiry": 1782460800000,
      "tauYears": 0.08858641,
      "daysToExpiry": 32.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77120.58,
        "previous": 76770.59,
        "change": 349.99,
        "percentChange": 0.46
      },
      "atmIv": {
        "current": 34.22,
        "previous": 34.9,
        "change": -0.68,
        "percentChange": -1.95
      },
      "rr25": {
        "current": -5.13,
        "previous": -5.08,
        "change": -0.05,
        "percentChange": -0.98
      },
      "bf25": {
        "current": 2.07,
        "previous": 2.1,
        "change": -0.03,
        "percentChange": -1.43
      },
      "svi": {
        "a": {
          "current": -0.1214,
          "previous": -0.0988,
          "change": -0.0226,
          "percentChange": -22.84
        },
        "b": {
          "current": 0.1834,
          "previous": 0.1664,
          "change": 0.017,
          "percentChange": 10.21
        },
        "rho": {
          "current": 0.0852,
          "previous": 0.0441,
          "change": 0.0411,
          "percentChange": 93.3
        },
        "m": {
          "current": 0.1548,
          "previous": 0.123,
          "change": 0.0318,
          "percentChange": 25.82
        },
        "sigma": {
          "current": 0.7155,
          "previous": 0.6552,
          "change": 0.0603,
          "percentChange": 9.21
        }
      },
      "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": [
          55.2477,
          53.9826,
          52.7254,
          51.4776,
          50.2412,
          49.0182,
          47.8109,
          46.6217,
          45.4533,
          44.3086,
          43.1911,
          42.104,
          41.0514,
          40.0372,
          39.066,
          38.1423,
          37.2712,
          36.4578,
          35.7073,
          35.0252,
          34.4168,
          33.8873,
          33.4415,
          33.0838,
          32.8182,
          32.6478,
          32.5746,
          32.6001,
          32.7245,
          32.947,
          33.266,
          33.6787,
          34.1817,
          34.771,
          35.442,
          36.1898,
          37.0093,
          37.8952,
          38.8424,
          39.8457,
          40.9002
        ],
        "previous": [
          55.2707,
          54.0415,
          52.8199,
          51.6077,
          50.4066,
          49.2188,
          48.0465,
          46.8921,
          45.7584,
          44.6484,
          43.5652,
          42.5123,
          41.4934,
          40.5126,
          39.5741,
          38.6824,
          37.8423,
          37.0586,
          36.3364,
          35.6806,
          35.0961,
          34.5877,
          34.1598,
          33.8164,
          33.561,
          33.396,
          33.3236,
          33.3446,
          33.4591,
          33.6663,
          33.9645,
          34.351,
          34.8226,
          35.3756,
          36.0054,
          36.7076,
          37.4772,
          38.3093,
          39.199,
          40.1415,
          41.1319
        ],
        "change": [
          -0.023,
          -0.0589,
          -0.0945,
          -0.1301,
          -0.1654,
          -0.2006,
          -0.2356,
          -0.2704,
          -0.3051,
          -0.3398,
          -0.3741,
          -0.4083,
          -0.442,
          -0.4754,
          -0.5081,
          -0.5401,
          -0.5711,
          -0.6008,
          -0.6291,
          -0.6554,
          -0.6793,
          -0.7004,
          -0.7183,
          -0.7326,
          -0.7428,
          -0.7482,
          -0.749,
          -0.7445,
          -0.7346,
          -0.7193,
          -0.6985,
          -0.6723,
          -0.6409,
          -0.6046,
          -0.5634,
          -0.5178,
          -0.4679,
          -0.4141,
          -0.3566,
          -0.2958,
          -0.2317
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.584,
        "rotation": -0.324,
        "wingChange": 0.143,
        "rmsChange": 0.529
      }
    },
    {
      "label": "31JUL26",
      "expiry": 1785484800000,
      "tauYears": 0.18447682,
      "daysToExpiry": 67.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77266.66,
        "previous": 76905.05,
        "change": 361.61,
        "percentChange": 0.47
      },
      "atmIv": {
        "current": 35.83,
        "previous": 36.18,
        "change": -0.35,
        "percentChange": -0.97
      },
      "rr25": {
        "current": -5.17,
        "previous": -5.4,
        "change": 0.23,
        "percentChange": 4.26
      },
      "bf25": {
        "current": 2.19,
        "previous": 2.28,
        "change": -0.09,
        "percentChange": -3.95
      },
      "svi": {
        "a": {
          "current": -0.1119,
          "previous": -0.0861,
          "change": -0.0259,
          "percentChange": -30.06
        },
        "b": {
          "current": 0.1896,
          "previous": 0.1727,
          "change": 0.0169,
          "percentChange": 9.76
        },
        "rho": {
          "current": 0.0503,
          "previous": 0.0061,
          "change": 0.0442,
          "percentChange": 720.96
        },
        "m": {
          "current": 0.1713,
          "previous": 0.1421,
          "change": 0.0292,
          "percentChange": 20.56
        },
        "sigma": {
          "current": 0.7056,
          "previous": 0.6277,
          "change": 0.0779,
          "percentChange": 12.42
        }
      },
      "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": [
          49.0793,
          48.2894,
          47.5067,
          46.7323,
          45.9671,
          45.2125,
          44.4694,
          43.7392,
          43.0233,
          42.323,
          41.6399,
          40.9756,
          40.3317,
          39.7099,
          39.1121,
          38.5401,
          37.9957,
          37.481,
          36.9979,
          36.5482,
          36.134,
          35.757,
          35.4191,
          35.1219,
          34.8671,
          34.6559,
          34.4898,
          34.3695,
          34.2961,
          34.2699,
          34.2914,
          34.3605,
          34.477,
          34.6404,
          34.85,
          35.1049,
          35.4038,
          35.7454,
          36.1283,
          36.5507,
          37.0109
        ],
        "previous": [
          49.6058,
          48.814,
          48.0286,
          47.2506,
          46.4811,
          45.7212,
          44.9721,
          44.2351,
          43.5116,
          42.8031,
          42.1111,
          41.4373,
          40.7834,
          40.1513,
          39.5427,
          38.9597,
          38.4042,
          37.8782,
          37.3837,
          36.9228,
          36.4974,
          36.1096,
          35.7611,
          35.4536,
          35.1889,
          34.9683,
          34.793,
          34.6641,
          34.5823,
          34.5481,
          34.5618,
          34.6232,
          34.732,
          34.8877,
          35.0893,
          35.3358,
          35.6258,
          35.9579,
          36.3303,
          36.7413,
          37.189
        ],
        "change": [
          -0.5265,
          -0.5246,
          -0.5219,
          -0.5183,
          -0.514,
          -0.5087,
          -0.5027,
          -0.4959,
          -0.4883,
          -0.4801,
          -0.4712,
          -0.4617,
          -0.4517,
          -0.4414,
          -0.4306,
          -0.4196,
          -0.4085,
          -0.3972,
          -0.3858,
          -0.3746,
          -0.3634,
          -0.3526,
          -0.342,
          -0.3317,
          -0.3218,
          -0.3124,
          -0.3032,
          -0.2946,
          -0.2862,
          -0.2782,
          -0.2704,
          -0.2627,
          -0.255,
          -0.2473,
          -0.2393,
          -0.2309,
          -0.222,
          -0.2125,
          -0.202,
          -0.1906,
          -0.1781
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.368,
        "rotation": 0.201,
        "wingChange": -0.007,
        "rmsChange": 0.382
      }
    },
    {
      "label": "25SEP26",
      "expiry": 1790323200000,
      "tauYears": 0.33790148,
      "daysToExpiry": 123.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77611.11,
        "previous": 77221.55,
        "change": 389.56,
        "percentChange": 0.5
      },
      "atmIv": {
        "current": 38.26,
        "previous": 38.34,
        "change": -0.08,
        "percentChange": -0.21
      },
      "rr25": {
        "current": -5.0,
        "previous": -4.98,
        "change": -0.02,
        "percentChange": -0.4
      },
      "bf25": {
        "current": 2.3,
        "previous": 2.42,
        "change": -0.12,
        "percentChange": -4.96
      },
      "svi": {
        "a": {
          "current": -0.2368,
          "previous": -0.2389,
          "change": 0.0021,
          "percentChange": 0.89
        },
        "b": {
          "current": 0.2685,
          "previous": 0.2805,
          "change": -0.0121,
          "percentChange": -4.3
        },
        "rho": {
          "current": -0.1449,
          "previous": -0.2301,
          "change": 0.0853,
          "percentChange": 37.05
        },
        "m": {
          "current": 0.0374,
          "previous": -0.0607,
          "change": 0.0981,
          "percentChange": 161.62
        },
        "sigma": {
          "current": 1.0645,
          "previous": 1.0465,
          "change": 0.018,
          "percentChange": 1.72
        }
      },
      "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": [
          47.4538,
          46.8969,
          46.3493,
          45.8113,
          45.2836,
          44.7666,
          44.2609,
          43.7672,
          43.2859,
          42.8176,
          42.363,
          41.9226,
          41.4969,
          41.0866,
          40.6923,
          40.3145,
          39.9538,
          39.6108,
          39.2859,
          38.9798,
          38.6928,
          38.4256,
          38.1784,
          37.9518,
          37.746,
          37.5615,
          37.3984,
          37.2571,
          37.1378,
          37.0405,
          36.9654,
          36.9125,
          36.8819,
          36.8734,
          36.8869,
          36.9223,
          36.9794,
          37.0578,
          37.1574,
          37.2777,
          37.4183
        ],
        "previous": [
          47.7435,
          47.1625,
          46.5921,
          46.0328,
          45.485,
          44.9494,
          44.4266,
          43.9172,
          43.4216,
          42.9406,
          42.4746,
          42.0243,
          41.5903,
          41.1731,
          40.7732,
          40.3913,
          40.0279,
          39.6835,
          39.3585,
          39.0535,
          38.7688,
          38.5049,
          38.2622,
          38.0409,
          37.8414,
          37.6639,
          37.5085,
          37.3755,
          37.2649,
          37.1767,
          37.111,
          37.0677,
          37.0467,
          37.0478,
          37.0708,
          37.1154,
          37.1813,
          37.2682,
          37.3757,
          37.5034,
          37.6508
        ],
        "change": [
          -0.2897,
          -0.2656,
          -0.2428,
          -0.2215,
          -0.2014,
          -0.1828,
          -0.1657,
          -0.15,
          -0.1357,
          -0.123,
          -0.1116,
          -0.1017,
          -0.0934,
          -0.0865,
          -0.0809,
          -0.0768,
          -0.0741,
          -0.0727,
          -0.0726,
          -0.0737,
          -0.076,
          -0.0793,
          -0.0838,
          -0.0891,
          -0.0954,
          -0.1024,
          -0.1101,
          -0.1184,
          -0.1271,
          -0.1362,
          -0.1456,
          -0.1552,
          -0.1648,
          -0.1744,
          -0.1839,
          -0.1931,
          -0.2019,
          -0.2104,
          -0.2183,
          -0.2257,
          -0.2325
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.111,
        "rotation": -0.034,
        "wingChange": -0.053,
        "rmsChange": 0.157
      }
    },
    {
      "label": "25DEC26",
      "expiry": 1798185600000,
      "tauYears": 0.58721655,
      "daysToExpiry": 214.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 78366.57,
        "previous": 77973.78,
        "change": 392.79,
        "percentChange": 0.5
      },
      "atmIv": {
        "current": 41.64,
        "previous": 41.76,
        "change": -0.12,
        "percentChange": -0.29
      },
      "rr25": {
        "current": -4.89,
        "previous": -4.88,
        "change": -0.01,
        "percentChange": -0.2
      },
      "bf25": {
        "current": 2.45,
        "previous": 2.48,
        "change": -0.03,
        "percentChange": -1.21
      },
      "svi": {
        "a": {
          "current": -0.2444,
          "previous": -0.2415,
          "change": -0.0029,
          "percentChange": -1.21
        },
        "b": {
          "current": 0.2986,
          "previous": 0.2981,
          "change": 0.0005,
          "percentChange": 0.17
        },
        "rho": {
          "current": -0.1875,
          "previous": -0.1686,
          "change": -0.0189,
          "percentChange": -11.19
        },
        "m": {
          "current": 0.046,
          "previous": 0.0693,
          "change": -0.0232,
          "percentChange": -33.56
        },
        "sigma": {
          "current": 1.1604,
          "previous": 1.1521,
          "change": 0.0083,
          "percentChange": 0.72
        }
      },
      "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": [
          48.2176,
          47.8464,
          47.4815,
          47.1232,
          46.7717,
          46.4273,
          46.0902,
          45.7606,
          45.4388,
          45.125,
          44.8195,
          44.5226,
          44.2344,
          43.9552,
          43.6852,
          43.4246,
          43.1737,
          42.9327,
          42.7018,
          42.4811,
          42.2709,
          42.0714,
          41.8826,
          41.7048,
          41.5382,
          41.3827,
          41.2386,
          41.106,
          40.985,
          40.8755,
          40.7778,
          40.6918,
          40.6175,
          40.5551,
          40.5044,
          40.4655,
          40.4383,
          40.4228,
          40.4189,
          40.4266,
          40.4457
        ],
        "previous": [
          48.315,
          47.9464,
          47.5839,
          47.2279,
          46.8786,
          46.5363,
          46.2011,
          45.8733,
          45.5532,
          45.241,
          44.937,
          44.6413,
          44.3544,
          44.0763,
          43.8073,
          43.5477,
          43.2977,
          43.0575,
          42.8272,
          42.6072,
          42.3976,
          42.1985,
          42.0103,
          41.8329,
          41.6667,
          41.5116,
          41.3679,
          41.2357,
          41.115,
          41.0059,
          40.9086,
          40.8231,
          40.7493,
          40.6874,
          40.6373,
          40.599,
          40.5725,
          40.5578,
          40.5548,
          40.5634,
          40.5836
        ],
        "change": [
          -0.0974,
          -0.1,
          -0.1024,
          -0.1047,
          -0.1069,
          -0.109,
          -0.1109,
          -0.1127,
          -0.1144,
          -0.116,
          -0.1175,
          -0.1187,
          -0.12,
          -0.1211,
          -0.1221,
          -0.1231,
          -0.124,
          -0.1248,
          -0.1254,
          -0.1261,
          -0.1267,
          -0.1271,
          -0.1277,
          -0.1281,
          -0.1285,
          -0.1289,
          -0.1293,
          -0.1297,
          -0.13,
          -0.1304,
          -0.1308,
          -0.1313,
          -0.1318,
          -0.1323,
          -0.1329,
          -0.1335,
          -0.1342,
          -0.135,
          -0.1359,
          -0.1368,
          -0.1379
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.125,
        "rotation": -0.013,
        "wingChange": 0.003,
        "rmsChange": 0.124
      }
    },
    {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "tauYears": 0.83653161,
      "daysToExpiry": 305.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 79053.73,
        "previous": 78645.81,
        "change": 407.92,
        "percentChange": 0.52
      },
      "atmIv": {
        "current": 42.96,
        "previous": 43.17,
        "change": -0.21,
        "percentChange": -0.49
      },
      "rr25": {
        "current": -4.56,
        "previous": -4.64,
        "change": 0.08,
        "percentChange": 1.72
      },
      "bf25": {
        "current": 2.34,
        "previous": 2.44,
        "change": -0.1,
        "percentChange": -4.1
      },
      "svi": {
        "a": {
          "current": -0.2464,
          "previous": -0.2318,
          "change": -0.0145,
          "percentChange": -6.27
        },
        "b": {
          "current": 0.3111,
          "previous": 0.3121,
          "change": -0.001,
          "percentChange": -0.32
        },
        "rho": {
          "current": -0.1397,
          "previous": -0.206,
          "change": 0.0664,
          "percentChange": 32.21
        },
        "m": {
          "current": 0.1528,
          "previous": 0.0718,
          "change": 0.081,
          "percentChange": 112.75
        },
        "sigma": {
          "current": 1.2754,
          "previous": 1.2453,
          "change": 0.03,
          "percentChange": 2.41
        }
      },
      "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": [
          48.2029,
          47.9306,
          47.6625,
          47.3988,
          47.1397,
          46.8852,
          46.6356,
          46.3909,
          46.1512,
          45.9168,
          45.6878,
          45.4643,
          45.2463,
          45.0342,
          44.8279,
          44.6277,
          44.4335,
          44.2457,
          44.0642,
          43.8893,
          43.7209,
          43.5593,
          43.4045,
          43.2566,
          43.1157,
          42.982,
          42.8554,
          42.7362,
          42.6242,
          42.5197,
          42.4227,
          42.3331,
          42.2512,
          42.1769,
          42.1102,
          42.0512,
          41.9999,
          41.9563,
          41.9204,
          41.8922,
          41.8716
        ],
        "previous": [
          48.5362,
          48.2557,
          47.9797,
          47.7085,
          47.4421,
          47.1807,
          46.9245,
          46.6735,
          46.4279,
          46.1879,
          45.9535,
          45.725,
          45.5024,
          45.2858,
          45.0755,
          44.8715,
          44.6739,
          44.4828,
          44.2985,
          44.1209,
          43.9501,
          43.7863,
          43.6296,
          43.4801,
          43.3377,
          43.2027,
          43.075,
          42.9548,
          42.8421,
          42.7369,
          42.6394,
          42.5494,
          42.4671,
          42.3925,
          42.3255,
          42.2663,
          42.2148,
          42.1709,
          42.1347,
          42.1062,
          42.0853
        ],
        "change": [
          -0.3333,
          -0.3251,
          -0.3172,
          -0.3097,
          -0.3024,
          -0.2955,
          -0.2889,
          -0.2826,
          -0.2767,
          -0.2711,
          -0.2657,
          -0.2607,
          -0.2561,
          -0.2516,
          -0.2476,
          -0.2438,
          -0.2404,
          -0.2371,
          -0.2343,
          -0.2316,
          -0.2292,
          -0.227,
          -0.2251,
          -0.2235,
          -0.222,
          -0.2207,
          -0.2196,
          -0.2186,
          -0.2179,
          -0.2172,
          -0.2167,
          -0.2163,
          -0.2159,
          -0.2156,
          -0.2153,
          -0.2151,
          -0.2149,
          -0.2146,
          -0.2143,
          -0.214,
          -0.2137
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.237,
        "rotation": 0.049,
        "wingChange": -0.012,
        "rmsChange": 0.248
      }
    }
  ],
  "events": [
    {
      "type": "rotation",
      "title": "Largest eligible smile rotation",
      "label": "27MAY26",
      "value": -1.936,
      "score": 1.936,
      "unit": "volatility points"
    },
    {
      "type": "atmIv",
      "title": "Largest standard-tenor ATM IV move",
      "label": "1W",
      "value": -1.59,
      "score": 1.59,
      "unit": "volatility points"
    },
    {
      "type": "bf25",
      "title": "Largest standard-tenor BF25 move",
      "label": "1Y",
      "value": -0.13,
      "score": 0.13,
      "unit": "volatility points"
    },
    {
      "type": "rr25",
      "title": "Largest standard-tenor RR25 move",
      "label": "1Y",
      "value": 0.11,
      "score": 0.11,
      "unit": "volatility points"
    },
    {
      "type": "rho",
      "title": "Largest eligible SVI rho move",
      "label": "25SEP26",
      "value": 0.0853,
      "score": 0.0853,
      "unit": "parameter units"
    },
    {
      "type": "sigma",
      "title": "Largest eligible SVI sigma move",
      "label": "31JUL26",
      "value": 0.0779,
      "score": 0.0779,
      "unit": "parameter units"
    }
  ],
  "expiryEffects": [
    {
      "label": "25MAY26",
      "daysToExpiry": 0.334,
      "metric": "Smile rotation",
      "value": -18.025,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    },
    {
      "label": "26MAY26",
      "daysToExpiry": 1.334,
      "metric": "Smile rotation",
      "value": 2.23,
      "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": 282.93874926,
      "metric": "vega",
      "availability": "available"
    },
    "highestGamma": {
      "label": "25MAY26",
      "expiry": 1779696000000,
      "value": 0.000482623043,
      "metric": "gamma",
      "availability": "available"
    },
    "highestThetaDecay": {
      "label": "25MAY26",
      "expiry": 1779696000000,
      "value": -493.5913316,
      "metric": "theta",
      "availability": "available"
    },
    "highestVanna": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 0.00178953,
      "metric": "vanna",
      "availability": "available"
    },
    "highestVolga": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": -25.42020613,
      "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": "25MAY26",
        "values": [
          42.975,
          40.9175,
          38.9051,
          36.9355,
          35.0065,
          33.1145,
          31.256,
          29.4264,
          27.6206,
          25.832,
          24.053,
          22.2738,
          20.4826,
          18.6643,
          16.7986,
          14.8597,
          12.8138,
          10.62,
          8.2399,
          5.6688,
          3.0078,
          0.5489,
          -1.2737,
          -2.1578,
          -2.1356,
          -1.4453,
          -0.3262,
          1.0581,
          2.6109,
          4.2777,
          6.0285,
          7.8464,
          9.7216,
          11.6488,
          13.6248,
          15.6474,
          17.7157,
          19.8286,
          21.9854,
          24.1853,
          26.428
        ]
      },
      {
        "label": "26MAY26",
        "values": [
          26.0036,
          24.5584,
          23.1008,
          21.6312,
          20.1498,
          18.6573,
          17.154,
          15.6403,
          14.1169,
          12.5847,
          11.0452,
          9.4999,
          7.9525,
          6.4085,
          4.8781,
          3.3797,
          1.9462,
          0.6357,
          -0.4552,
          -1.1834,
          -1.3836,
          -0.9469,
          0.0911,
          1.5583,
          3.2508,
          5.017,
          6.7733,
          8.4834,
          10.1362,
          11.732,
          13.2751,
          14.7713,
          16.2254,
          17.6424,
          19.0259,
          20.3792,
          21.7048,
          23.0049,
          24.2815,
          25.5358,
          26.7694
        ]
      },
      {
        "label": "27MAY26",
        "values": [
          16.763,
          15.8015,
          14.8434,
          13.8889,
          12.9379,
          11.9906,
          11.047,
          10.1067,
          9.1694,
          8.2348,
          7.3024,
          6.372,
          5.4442,
          4.5201,
          3.6033,
          2.7009,
          1.827,
          1.0056,
          0.2757,
          -0.3076,
          -0.6807,
          -0.7908,
          -0.6213,
          -0.2016,
          0.4082,
          1.1431,
          1.9502,
          2.7933,
          3.6508,
          4.5106,
          5.3665,
          6.2158,
          7.0576,
          7.8917,
          8.7187,
          9.5392,
          10.3538,
          11.1629,
          11.9671,
          12.7668,
          13.5623
        ]
      },
      {
        "label": "29MAY26",
        "values": [
          11.0085,
          10.3,
          9.589,
          8.8762,
          8.162,
          7.447,
          6.732,
          6.0177,
          5.3054,
          4.5961,
          3.892,
          3.1956,
          2.5103,
          1.8412,
          1.195,
          0.5816,
          0.0142,
          -0.4896,
          -0.9078,
          -1.2146,
          -1.3848,
          -1.398,
          -1.2458,
          -0.9361,
          -0.4913,
          0.0559,
          0.6714,
          1.3246,
          1.9922,
          2.6579,
          3.311,
          3.9455,
          4.5586,
          5.1489,
          5.7164,
          6.2621,
          6.7865,
          7.2912,
          7.7771,
          8.2454,
          8.6972
        ]
      },
      {
        "label": "5JUN26",
        "values": [
          2.3507,
          2.1004,
          1.8513,
          1.6038,
          1.3582,
          1.1151,
          0.8749,
          0.6382,
          0.4058,
          0.1787,
          -0.0423,
          -0.2556,
          -0.4597,
          -0.6528,
          -0.8324,
          -0.9961,
          -1.1405,
          -1.2621,
          -1.3572,
          -1.4217,
          -1.452,
          -1.4448,
          -1.3982,
          -1.3116,
          -1.1863,
          -1.0257,
          -0.8344,
          -0.6186,
          -0.3847,
          -0.1388,
          0.1131,
          0.3663,
          0.617,
          0.8622,
          1.1001,
          1.3294,
          1.5493,
          1.7597,
          1.9603,
          2.1517,
          2.3339
        ]
      },
      {
        "label": "12JUN26",
        "values": [
          0.8998,
          0.7918,
          0.686,
          0.5825,
          0.4815,
          0.383,
          0.287,
          0.1935,
          0.1027,
          0.0144,
          -0.0712,
          -0.1544,
          -0.2351,
          -0.3135,
          -0.3894,
          -0.4631,
          -0.5346,
          -0.604,
          -0.6712,
          -0.7363,
          -0.7992,
          -0.8598,
          -0.918,
          -0.9738,
          -1.0271,
          -1.0777,
          -1.1258,
          -1.1716,
          -1.2155,
          -1.2576,
          -1.2985,
          -1.3386,
          -1.3782,
          -1.4178,
          -1.4576,
          -1.4979,
          -1.5388,
          -1.5804,
          -1.6227,
          -1.6656,
          -1.7091
        ]
      },
      {
        "label": "26JUN26",
        "values": [
          -0.023,
          -0.0589,
          -0.0945,
          -0.1301,
          -0.1654,
          -0.2006,
          -0.2356,
          -0.2704,
          -0.3051,
          -0.3398,
          -0.3741,
          -0.4083,
          -0.442,
          -0.4754,
          -0.5081,
          -0.5401,
          -0.5711,
          -0.6008,
          -0.6291,
          -0.6554,
          -0.6793,
          -0.7004,
          -0.7183,
          -0.7326,
          -0.7428,
          -0.7482,
          -0.749,
          -0.7445,
          -0.7346,
          -0.7193,
          -0.6985,
          -0.6723,
          -0.6409,
          -0.6046,
          -0.5634,
          -0.5178,
          -0.4679,
          -0.4141,
          -0.3566,
          -0.2958,
          -0.2317
        ]
      },
      {
        "label": "31JUL26",
        "values": [
          -0.5265,
          -0.5246,
          -0.5219,
          -0.5183,
          -0.514,
          -0.5087,
          -0.5027,
          -0.4959,
          -0.4883,
          -0.4801,
          -0.4712,
          -0.4617,
          -0.4517,
          -0.4414,
          -0.4306,
          -0.4196,
          -0.4085,
          -0.3972,
          -0.3858,
          -0.3746,
          -0.3634,
          -0.3526,
          -0.342,
          -0.3317,
          -0.3218,
          -0.3124,
          -0.3032,
          -0.2946,
          -0.2862,
          -0.2782,
          -0.2704,
          -0.2627,
          -0.255,
          -0.2473,
          -0.2393,
          -0.2309,
          -0.222,
          -0.2125,
          -0.202,
          -0.1906,
          -0.1781
        ]
      },
      {
        "label": "25SEP26",
        "values": [
          -0.2897,
          -0.2656,
          -0.2428,
          -0.2215,
          -0.2014,
          -0.1828,
          -0.1657,
          -0.15,
          -0.1357,
          -0.123,
          -0.1116,
          -0.1017,
          -0.0934,
          -0.0865,
          -0.0809,
          -0.0768,
          -0.0741,
          -0.0727,
          -0.0726,
          -0.0737,
          -0.076,
          -0.0793,
          -0.0838,
          -0.0891,
          -0.0954,
          -0.1024,
          -0.1101,
          -0.1184,
          -0.1271,
          -0.1362,
          -0.1456,
          -0.1552,
          -0.1648,
          -0.1744,
          -0.1839,
          -0.1931,
          -0.2019,
          -0.2104,
          -0.2183,
          -0.2257,
          -0.2325
        ]
      },
      {
        "label": "25DEC26",
        "values": [
          -0.0974,
          -0.1,
          -0.1024,
          -0.1047,
          -0.1069,
          -0.109,
          -0.1109,
          -0.1127,
          -0.1144,
          -0.116,
          -0.1175,
          -0.1187,
          -0.12,
          -0.1211,
          -0.1221,
          -0.1231,
          -0.124,
          -0.1248,
          -0.1254,
          -0.1261,
          -0.1267,
          -0.1271,
          -0.1277,
          -0.1281,
          -0.1285,
          -0.1289,
          -0.1293,
          -0.1297,
          -0.13,
          -0.1304,
          -0.1308,
          -0.1313,
          -0.1318,
          -0.1323,
          -0.1329,
          -0.1335,
          -0.1342,
          -0.135,
          -0.1359,
          -0.1368,
          -0.1379
        ]
      },
      {
        "label": "26MAR27",
        "values": [
          -0.3333,
          -0.3251,
          -0.3172,
          -0.3097,
          -0.3024,
          -0.2955,
          -0.2889,
          -0.2826,
          -0.2767,
          -0.2711,
          -0.2657,
          -0.2607,
          -0.2561,
          -0.2516,
          -0.2476,
          -0.2438,
          -0.2404,
          -0.2371,
          -0.2343,
          -0.2316,
          -0.2292,
          -0.227,
          -0.2251,
          -0.2235,
          -0.222,
          -0.2207,
          -0.2196,
          -0.2186,
          -0.2179,
          -0.2172,
          -0.2167,
          -0.2163,
          -0.2159,
          -0.2156,
          -0.2153,
          -0.2151,
          -0.2149,
          -0.2146,
          -0.2143,
          -0.214,
          -0.2137
        ]
      }
    ]
  }
}
