{
  "schemaVersion": 2,
  "reportDate": "2026-06-10",
  "generatedAt": "2026-07-25T18:42:36+00:00",
  "currentSnapshotAt": "2026-06-10T23:59:00+00:00",
  "previousSnapshotAt": "2026-06-09T23:59:00+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": 0.10778834,
    "previousObjective": 0.07152059,
    "currentLiveError": 102.30661093,
    "previousLiveError": 62.12722793
  },
  "coverage": {
    "currentListedExpiries": 11,
    "previousListedExpiries": 11,
    "comparedListedExpiries": 10,
    "addedExpiries": [
      "14JUN26"
    ],
    "removedExpiries": [
      "10JUN26"
    ],
    "fixedTenors": [
      "1W",
      "2W",
      "1M",
      "3M",
      "6M",
      "9M",
      "1Y"
    ]
  },
  "commentary": {
    "source": "deterministic",
    "model": null,
    "headline": "BTC daily surface: 1W ATM IV rises 1.84 volatility points",
    "executiveSummary": "Across the six headline tenors, ATM IV averaged +0.86 volatility points, RR25 -0.71 volatility points and BF25 +0.06 volatility points between the stored endpoints.",
    "takeaways": [
      {
        "id": "front-atm",
        "label": "Front end",
        "text": "Front-end ATM IV increased, averaging +1.49 volatility points across 1W, 2W and 1M."
      },
      {
        "id": "back-atm",
        "label": "Long end",
        "text": "Long-dated ATM IV was broadly unchanged, averaging +0.10 volatility points across 6M and 1Y."
      },
      {
        "id": "rr25",
        "label": "Skew",
        "text": "RR25 moved towards puts, averaging -0.71 volatility points across the six headline tenors."
      },
      {
        "id": "bf25",
        "label": "Convexity",
        "text": "BF25 was broadly unchanged, averaging +0.06 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 +1.84 volatility points at 1W.",
        "tenor": "1W",
        "value": 1.84
      }
    ],
    "evidenceIds": [
      "front-atm",
      "back-atm",
      "rr25",
      "bf25",
      "largest-standard-tenor"
    ]
  },
  "newsEvidence": null,
  "facts": [
    {
      "id": "front-atm",
      "label": "Front end",
      "text": "Front-end ATM IV increased, averaging +1.49 volatility points across 1W, 2W and 1M."
    },
    {
      "id": "back-atm",
      "label": "Long end",
      "text": "Long-dated ATM IV was broadly unchanged, averaging +0.10 volatility points across 6M and 1Y."
    },
    {
      "id": "rr25",
      "label": "Skew",
      "text": "RR25 moved towards puts, averaging -0.71 volatility points across the six headline tenors."
    },
    {
      "id": "bf25",
      "label": "Convexity",
      "text": "BF25 was broadly unchanged, averaging +0.06 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 +1.84 volatility points at 1W.",
      "tenor": "1W",
      "value": 1.84
    }
  ],
  "summaryMetrics": {
    "basis": "Average change across 1W, 2W, 1M, 3M, 6M and 1Y",
    "unit": "volatility points",
    "atmIvChange": 0.86,
    "rr25Change": -0.71,
    "bf25Change": 0.06
  },
  "tenors": [
    {
      "tenor": "1W",
      "targetExpiry": 1781740741823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 47.11,
        "previous": 45.27,
        "change": 1.84,
        "percentChange": 4.06
      },
      "rr25": {
        "current": -7.72,
        "previous": -6.47,
        "change": -1.25,
        "percentChange": -19.32
      },
      "bf25": {
        "current": 3.02,
        "previous": 3.03,
        "change": -0.01,
        "percentChange": -0.33
      }
    },
    {
      "tenor": "2W",
      "targetExpiry": 1782345541823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 46.0,
        "previous": 44.2,
        "change": 1.8,
        "percentChange": 4.07
      },
      "rr25": {
        "current": -7.87,
        "previous": -7.47,
        "change": -0.4,
        "percentChange": -5.35
      },
      "bf25": {
        "current": 3.21,
        "previous": 3.15,
        "change": 0.06,
        "percentChange": 1.9
      }
    },
    {
      "tenor": "1M",
      "targetExpiry": 1783727941823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.29,
        "previous": 43.45,
        "change": 0.84,
        "percentChange": 1.93
      },
      "rr25": {
        "current": -8.4,
        "previous": -7.52,
        "change": -0.88,
        "percentChange": -11.7
      },
      "bf25": {
        "current": 2.88,
        "previous": 2.78,
        "change": 0.1,
        "percentChange": 3.6
      }
    },
    {
      "tenor": "3M",
      "targetExpiry": 1788998341823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 43.42,
        "previous": 42.95,
        "change": 0.47,
        "percentChange": 1.09
      },
      "rr25": {
        "current": -7.35,
        "previous": -6.55,
        "change": -0.8,
        "percentChange": -12.21
      },
      "bf25": {
        "current": 2.73,
        "previous": 2.67,
        "change": 0.06,
        "percentChange": 2.25
      }
    },
    {
      "tenor": "6M",
      "targetExpiry": 1796860741823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.4,
        "previous": 44.09,
        "change": 0.31,
        "percentChange": 0.7
      },
      "rr25": {
        "current": -5.76,
        "previous": -5.19,
        "change": -0.57,
        "percentChange": -10.98
      },
      "bf25": {
        "current": 2.92,
        "previous": 2.87,
        "change": 0.05,
        "percentChange": 1.74
      }
    },
    {
      "tenor": "9M",
      "targetExpiry": 1804723141823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.74,
        "previous": 44.7,
        "change": 0.04,
        "percentChange": 0.09
      },
      "rr25": {
        "current": -4.57,
        "previous": -4.14,
        "change": -0.43,
        "percentChange": -10.39
      },
      "bf25": {
        "current": 3.05,
        "previous": 2.96,
        "change": 0.09,
        "percentChange": 3.04
      }
    },
    {
      "tenor": "1Y",
      "targetExpiry": 1812671941823,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.89,
        "previous": 45.01,
        "change": -0.12,
        "percentChange": -0.27
      },
      "rr25": {
        "current": -3.86,
        "previous": -3.52,
        "change": -0.34,
        "percentChange": -9.66
      },
      "bf25": {
        "current": 3.14,
        "previous": 3.02,
        "change": 0.12,
        "percentChange": 3.97
      }
    }
  ],
  "listedExpiries": [
    {
      "label": "11JUN26",
      "expiry": 1781164800000,
      "tauYears": 0.00091516,
      "daysToExpiry": 0.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 61448.5,
        "previous": 61664.19,
        "change": -215.69,
        "percentChange": -0.35
      },
      "atmIv": {
        "current": 51.5,
        "previous": 49.78,
        "change": 1.72,
        "percentChange": 3.46
      },
      "rr25": {
        "current": -6.56,
        "previous": -7.14,
        "change": 0.58,
        "percentChange": 8.12
      },
      "bf25": {
        "current": 2.46,
        "previous": 3.06,
        "change": -0.6,
        "percentChange": -19.61
      },
      "svi": {
        "a": {
          "current": -0.0263,
          "previous": -0.0385,
          "change": 0.0122,
          "percentChange": 31.72
        },
        "b": {
          "current": 0.0729,
          "previous": 0.0983,
          "change": -0.0254,
          "percentChange": -25.85
        },
        "rho": {
          "current": -0.2173,
          "previous": -0.1475,
          "change": -0.0699,
          "percentChange": -47.38
        },
        "m": {
          "current": -0.0675,
          "previous": -0.0343,
          "change": -0.0332,
          "percentChange": -96.68
        },
        "sigma": {
          "current": 0.3723,
          "previous": 0.4041,
          "change": -0.0319,
          "percentChange": -7.89
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          320.6949,
          306.7062,
          292.5783,
          278.3195,
          263.9401,
          249.4525,
          234.8717,
          220.2158,
          205.5062,
          190.7688,
          176.0352,
          161.344,
          146.7442,
          132.299,
          118.094,
          104.2496,
          90.9432,
          78.4493,
          67.205,
          57.903,
          51.5387,
          49.1752,
          51.2646,
          57.2157,
          65.8894,
          76.2678,
          87.6599,
          99.6383,
          111.9416,
          124.4067,
          136.9289,
          149.4388,
          161.8895,
          174.2485,
          186.4932,
          198.6078,
          210.5815,
          222.4068,
          234.0788,
          245.595,
          256.9538
        ],
        "previous": [
          188.0976,
          180.593,
          173.0284,
          165.4097,
          157.7439,
          150.0398,
          142.3077,
          134.5605,
          126.8137,
          119.0863,
          111.4018,
          103.7892,
          96.2851,
          88.936,
          81.8014,
          74.9592,
          68.5108,
          62.5889,
          57.3634,
          53.0416,
          49.8543,
          48.0165,
          47.667,
          48.8148,
          51.3331,
          55.005,
          59.5877,
          64.858,
          70.6325,
          76.7686,
          83.1588,
          89.7225,
          96.3997,
          103.1452,
          109.925,
          116.713,
          123.4895,
          130.239,
          136.9499,
          143.613,
          150.2214
        ],
        "change": [
          132.5973,
          126.1132,
          119.5499,
          112.9098,
          106.1962,
          99.4127,
          92.564,
          85.6553,
          78.6925,
          71.6825,
          64.6334,
          57.5548,
          50.4591,
          43.363,
          36.2926,
          29.2904,
          22.4324,
          15.8604,
          9.8416,
          4.8614,
          1.6844,
          1.1587,
          3.5976,
          8.4009,
          14.5563,
          21.2628,
          28.0722,
          34.7803,
          41.3091,
          47.6381,
          53.7701,
          59.7163,
          65.4898,
          71.1033,
          76.5682,
          81.8948,
          87.092,
          92.1678,
          97.1289,
          101.982,
          106.7324
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 40.029,
        "rotation": -10.863,
        "wingChange": 57.517,
        "rmsChange": 70.933
      }
    },
    {
      "label": "12JUN26",
      "expiry": 1781251200000,
      "tauYears": 0.00365488,
      "daysToExpiry": 1.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 61452.96,
        "previous": 61668.03,
        "change": -215.07,
        "percentChange": -0.35
      },
      "atmIv": {
        "current": 50.82,
        "previous": 47.48,
        "change": 3.34,
        "percentChange": 7.03
      },
      "rr25": {
        "current": -5.96,
        "previous": -4.9,
        "change": -1.06,
        "percentChange": -21.63
      },
      "bf25": {
        "current": 2.78,
        "previous": 3.28,
        "change": -0.5,
        "percentChange": -15.24
      },
      "svi": {
        "a": {
          "current": -0.0476,
          "previous": -0.042,
          "change": -0.0056,
          "percentChange": -13.31
        },
        "b": {
          "current": 0.1041,
          "previous": 0.1104,
          "change": -0.0064,
          "percentChange": -5.76
        },
        "rho": {
          "current": -0.1358,
          "previous": -0.022,
          "change": -0.1138,
          "percentChange": -517.98
        },
        "m": {
          "current": -0.0406,
          "previous": 0.0116,
          "change": -0.0522,
          "percentChange": -449.66
        },
        "sigma": {
          "current": 0.4704,
          "previous": 0.3932,
          "change": 0.0772,
          "percentChange": 19.63
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          180.8728,
          173.5465,
          166.1836,
          158.7906,
          151.3756,
          143.9477,
          136.5183,
          129.1006,
          121.7107,
          114.368,
          107.0965,
          99.9254,
          92.8917,
          86.0419,
          79.4354,
          73.1485,
          67.2793,
          61.9527,
          57.323,
          53.5704,
          50.8844,
          49.4301,
          49.3033,
          50.4975,
          52.9045,
          56.3482,
          60.6307,
          65.5659,
          70.996,
          76.7946,
          82.8637,
          89.1282,
          95.5304,
          102.0263,
          108.5821,
          115.1713,
          121.7733,
          128.3718,
          134.9542,
          141.5101,
          148.0315
        ],
        "previous": [
          148.6882,
          143.0611,
          137.3867,
          131.6693,
          125.915,
          120.1309,
          114.326,
          108.5118,
          102.7021,
          96.9146,
          91.1711,
          85.4992,
          79.9333,
          74.5172,
          69.3063,
          64.3707,
          59.7984,
          55.6972,
          52.195,
          49.4328,
          47.5501,
          46.6592,
          46.8181,
          48.013,
          50.1627,
          53.1407,
          56.8034,
          61.0125,
          65.646,
          70.6032,
          75.8026,
          81.18,
          86.6848,
          92.2772,
          97.9258,
          103.6058,
          109.2977,
          114.9856,
          120.6572,
          126.3025,
          131.9136
        ],
        "change": [
          32.1846,
          30.4854,
          28.7969,
          27.1213,
          25.4606,
          23.8168,
          22.1923,
          20.5888,
          19.0086,
          17.4534,
          15.9254,
          14.4262,
          12.9584,
          11.5247,
          10.1291,
          8.7778,
          7.4809,
          6.2555,
          5.128,
          4.1376,
          3.3343,
          2.7709,
          2.4852,
          2.4845,
          2.7418,
          3.2075,
          3.8273,
          4.5534,
          5.35,
          6.1914,
          7.0611,
          7.9482,
          8.8456,
          9.7491,
          10.6563,
          11.5655,
          12.4756,
          13.3862,
          14.297,
          15.2076,
          16.1179
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 8.774,
        "rotation": -8.864,
        "wingChange": 8.159,
        "rmsChange": 14.917
      }
    },
    {
      "label": "13JUN26",
      "expiry": 1781337600000,
      "tauYears": 0.00639461,
      "daysToExpiry": 2.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 61456.31,
        "previous": 61673.94,
        "change": -217.63,
        "percentChange": -0.35
      },
      "atmIv": {
        "current": 49.67,
        "previous": 46.11,
        "change": 3.56,
        "percentChange": 7.72
      },
      "rr25": {
        "current": -5.95,
        "previous": -5.7,
        "change": -0.25,
        "percentChange": -4.39
      },
      "bf25": {
        "current": 3.13,
        "previous": 3.12,
        "change": 0.01,
        "percentChange": 0.32
      },
      "svi": {
        "a": {
          "current": -0.0485,
          "previous": -0.0452,
          "change": -0.0032,
          "percentChange": -7.15
        },
        "b": {
          "current": 0.1127,
          "previous": 0.1138,
          "change": -0.0011,
          "percentChange": -0.95
        },
        "rho": {
          "current": -0.0491,
          "previous": 0.0026,
          "change": -0.0516,
          "percentChange": -2015.12
        },
        "m": {
          "current": 0.0053,
          "previous": 0.0299,
          "change": -0.0246,
          "percentChange": -82.15
        },
        "sigma": {
          "current": 0.4438,
          "previous": 0.4137,
          "change": 0.0301,
          "percentChange": 7.28
        }
      },
      "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": [
          147.6027,
          142.07,
          136.5048,
          130.9125,
          125.2994,
          119.6732,
          114.0434,
          108.4212,
          102.8207,
          97.2584,
          91.7552,
          86.3363,
          81.0328,
          75.8834,
          70.936,
          66.2498,
          61.8971,
          57.9652,
          54.5555,
          51.7796,
          49.7493,
          48.5608,
          48.2761,
          48.9072,
          50.4134,
          52.7109,
          55.691,
          59.2385,
          63.2447,
          67.614,
          72.2664,
          77.1361,
          82.1703,
          87.3265,
          92.5707,
          97.8757,
          103.2197,
          108.5849,
          113.957,
          119.3245,
          124.6779
        ],
        "previous": [
          127.6037,
          123.041,
          118.4467,
          113.8248,
          109.1806,
          104.5204,
          99.852,
          95.1851,
          90.5312,
          85.9049,
          81.3238,
          76.8094,
          72.3887,
          68.0943,
          63.9669,
          60.0558,
          56.4209,
          53.1332,
          50.2741,
          47.932,
          46.1954,
          45.1414,
          44.8227,
          45.2562,
          46.4193,
          48.2554,
          50.6847,
          53.6184,
          56.9688,
          60.6559,
          64.6103,
          68.7738,
          73.0983,
          77.5446,
          82.0806,
          86.6805,
          91.3231,
          95.9913,
          100.671,
          105.3509,
          110.0216
        ],
        "change": [
          19.999,
          19.029,
          18.0581,
          17.0877,
          16.1188,
          15.1528,
          14.1914,
          13.2361,
          12.2895,
          11.3535,
          10.4314,
          9.5269,
          8.6441,
          7.7891,
          6.9691,
          6.194,
          5.4762,
          4.832,
          4.2814,
          3.8476,
          3.5539,
          3.4194,
          3.4534,
          3.651,
          3.9941,
          4.4555,
          5.0063,
          5.6201,
          6.2759,
          6.9581,
          7.6561,
          8.3623,
          9.072,
          9.7819,
          10.4901,
          11.1952,
          11.8966,
          12.5936,
          13.286,
          13.9736,
          14.6563
        ],
        "classification": [
          "rotation towards puts",
          "wing steepening"
        ],
        "parallelShift": 7.214,
        "rotation": -2.775,
        "wingChange": 5.49,
        "rmsChange": 10.699
      }
    },
    {
      "label": "19JUN26",
      "expiry": 1781856000000,
      "tauYears": 0.02283297,
      "daysToExpiry": 8.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 61475.82,
        "previous": 61694.36,
        "change": -218.54,
        "percentChange": -0.35
      },
      "atmIv": {
        "current": 47.5,
        "previous": 45.08,
        "change": 2.42,
        "percentChange": 5.37
      },
      "rr25": {
        "current": -7.94,
        "previous": -6.65,
        "change": -1.29,
        "percentChange": -19.4
      },
      "bf25": {
        "current": 3.04,
        "previous": 3.01,
        "change": 0.03,
        "percentChange": 1.0
      },
      "svi": {
        "a": {
          "current": -0.0562,
          "previous": -0.0458,
          "change": -0.0104,
          "percentChange": -22.81
        },
        "b": {
          "current": 0.1271,
          "previous": 0.1187,
          "change": 0.0084,
          "percentChange": 7.05
        },
        "rho": {
          "current": 0.0698,
          "previous": 0.0431,
          "change": 0.0267,
          "percentChange": 62.0
        },
        "m": {
          "current": 0.1028,
          "previous": 0.0763,
          "change": 0.0265,
          "percentChange": 34.73
        },
        "sigma": {
          "current": 0.4796,
          "previous": 0.4263,
          "change": 0.0533,
          "percentChange": 12.51
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          93.1171,
          90.5427,
          87.9628,
          85.3802,
          82.7983,
          80.2209,
          77.6527,
          75.0988,
          72.5654,
          70.0596,
          67.5895,
          65.1645,
          62.7955,
          60.4947,
          58.2763,
          56.1561,
          54.1518,
          52.2829,
          50.5705,
          49.037,
          47.7054,
          46.5982,
          45.7365,
          45.1387,
          44.819,
          44.7859,
          45.0422,
          45.584,
          46.4017,
          47.4805,
          48.8018,
          50.3446,
          52.0865,
          54.0052,
          56.0789,
          58.2873,
          60.6113,
          63.0339,
          65.5395,
          68.1143,
          70.7463
        ],
        "previous": [
          87.9873,
          85.5342,
          83.0741,
          80.61,
          78.1454,
          75.6844,
          73.2319,
          70.7934,
          68.3757,
          65.9862,
          63.634,
          61.3293,
          59.0838,
          56.9113,
          54.8268,
          52.8477,
          50.9931,
          49.2838,
          47.7419,
          46.3905,
          45.2523,
          44.349,
          43.6997,
          43.3194,
          43.2178,
          43.3986,
          43.8589,
          44.5895,
          45.5762,
          46.8004,
          48.2409,
          49.8753,
          51.6807,
          53.6351,
          55.7177,
          57.9093,
          60.1926,
          62.5519,
          64.9735,
          67.4454,
          69.9568
        ],
        "change": [
          5.1298,
          5.0085,
          4.8887,
          4.7702,
          4.6529,
          4.5365,
          4.4208,
          4.3054,
          4.1897,
          4.0734,
          3.9555,
          3.8352,
          3.7117,
          3.5834,
          3.4495,
          3.3084,
          3.1587,
          2.9991,
          2.8286,
          2.6465,
          2.4531,
          2.2492,
          2.0368,
          1.8193,
          1.6012,
          1.3873,
          1.1833,
          0.9945,
          0.8255,
          0.6801,
          0.5609,
          0.4693,
          0.4058,
          0.3701,
          0.3612,
          0.378,
          0.4187,
          0.482,
          0.566,
          0.6689,
          0.7895
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 2.323,
        "rotation": -3.395,
        "wingChange": -0.195,
        "rmsChange": 2.946
      }
    },
    {
      "label": "26JUN26",
      "expiry": 1782460800000,
      "tauYears": 0.04201105,
      "daysToExpiry": 15.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 61487.83,
        "previous": 61719.31,
        "change": -231.48,
        "percentChange": -0.38
      },
      "atmIv": {
        "current": 45.8,
        "previous": 43.94,
        "change": 1.86,
        "percentChange": 4.23
      },
      "rr25": {
        "current": -7.86,
        "previous": -7.71,
        "change": -0.15,
        "percentChange": -1.95
      },
      "bf25": {
        "current": 3.24,
        "previous": 3.21,
        "change": 0.03,
        "percentChange": 0.93
      },
      "svi": {
        "a": {
          "current": -0.0445,
          "previous": -0.037,
          "change": -0.0075,
          "percentChange": -20.29
        },
        "b": {
          "current": 0.1272,
          "previous": 0.1187,
          "change": 0.0084,
          "percentChange": 7.1
        },
        "rho": {
          "current": 0.0701,
          "previous": 0.0431,
          "change": 0.027,
          "percentChange": 62.71
        },
        "m": {
          "current": 0.1118,
          "previous": 0.0973,
          "change": 0.0145,
          "percentChange": 14.91
        },
        "sigma": {
          "current": 0.4127,
          "previous": 0.3767,
          "change": 0.036,
          "percentChange": 9.55
        }
      },
      "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": [
          78.6888,
          76.8504,
          75.0083,
          73.1643,
          71.321,
          69.4812,
          67.6481,
          65.8253,
          64.0174,
          62.229,
          60.466,
          58.7347,
          57.0422,
          55.3968,
          53.8076,
          52.2844,
          50.8384,
          49.4814,
          48.2261,
          47.0857,
          46.0737,
          45.2033,
          44.4873,
          43.9371,
          43.5625,
          43.3709,
          43.3668,
          43.5517,
          43.924,
          44.4789,
          45.209,
          46.1045,
          47.1539,
          48.3446,
          49.6635,
          51.0971,
          52.6323,
          54.2567,
          55.9583,
          57.7261,
          59.5502
        ],
        "previous": [
          76.2558,
          74.4707,
          72.6795,
          70.8841,
          69.0867,
          67.29,
          65.4971,
          63.7116,
          61.9378,
          60.1804,
          58.4452,
          56.7385,
          55.0677,
          53.441,
          51.8678,
          50.3584,
          48.9244,
          47.578,
          46.3326,
          45.2021,
          44.2006,
          43.3421,
          42.6399,
          42.1057,
          41.7495,
          41.5783,
          41.5963,
          41.8042,
          42.199,
          42.7747,
          43.5225,
          44.4311,
          45.4879,
          46.6791,
          47.9907,
          49.4085,
          50.9192,
          52.5099,
          54.1687,
          55.8848,
          57.6484
        ],
        "change": [
          2.433,
          2.3797,
          2.3288,
          2.2802,
          2.2343,
          2.1912,
          2.151,
          2.1137,
          2.0796,
          2.0486,
          2.0208,
          1.9962,
          1.9745,
          1.9558,
          1.9398,
          1.926,
          1.914,
          1.9034,
          1.8935,
          1.8836,
          1.8731,
          1.8612,
          1.8474,
          1.8314,
          1.813,
          1.7926,
          1.7705,
          1.7475,
          1.725,
          1.7042,
          1.6865,
          1.6734,
          1.666,
          1.6655,
          1.6728,
          1.6886,
          1.7131,
          1.7468,
          1.7896,
          1.8413,
          1.9018
        ],
        "classification": [
          "parallel shift higher"
        ],
        "parallelShift": 1.86,
        "rotation": -0.334,
        "wingChange": -0.019,
        "rmsChange": 1.93
      }
    },
    {
      "label": "31JUL26",
      "expiry": 1785484800000,
      "tauYears": 0.13790146,
      "daysToExpiry": 50.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 61671.56,
        "previous": 61899.11,
        "change": -227.55,
        "percentChange": -0.37
      },
      "atmIv": {
        "current": 43.64,
        "previous": 43.2,
        "change": 0.44,
        "percentChange": 1.02
      },
      "rr25": {
        "current": -8.64,
        "previous": -7.42,
        "change": -1.22,
        "percentChange": -16.44
      },
      "bf25": {
        "current": 2.72,
        "previous": 2.58,
        "change": 0.14,
        "percentChange": 5.43
      },
      "svi": {
        "a": {
          "current": -0.0507,
          "previous": -0.0625,
          "change": 0.0118,
          "percentChange": 18.93
        },
        "b": {
          "current": 0.1682,
          "previous": 0.174,
          "change": -0.0058,
          "percentChange": -3.33
        },
        "rho": {
          "current": 0.2208,
          "previous": 0.2245,
          "change": -0.0037,
          "percentChange": -1.67
        },
        "m": {
          "current": 0.2731,
          "previous": 0.2758,
          "change": -0.0027,
          "percentChange": -0.98
        },
        "sigma": {
          "current": 0.4443,
          "previous": 0.5048,
          "change": -0.0605,
          "percentChange": -11.98
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          60.2249,
          59.3598,
          58.4946,
          57.63,
          56.7668,
          55.9058,
          55.0478,
          54.1939,
          53.3452,
          52.5031,
          51.6687,
          50.8437,
          50.0298,
          49.2288,
          48.4427,
          47.6737,
          46.9242,
          46.1968,
          45.4943,
          44.8195,
          44.1758,
          43.5664,
          42.9948,
          42.4646,
          41.9796,
          41.5433,
          41.1597,
          40.8322,
          40.5644,
          40.3595,
          40.2204,
          40.1497,
          40.1496,
          40.2214,
          40.3662,
          40.5844,
          40.8757,
          41.2392,
          41.6736,
          42.1767,
          42.746
        ],
        "previous": [
          58.5602,
          57.7256,
          56.8933,
          56.064,
          55.2386,
          54.418,
          53.6033,
          52.7955,
          51.9959,
          51.2058,
          50.4267,
          49.6601,
          48.9079,
          48.1718,
          47.4539,
          46.7562,
          46.0811,
          45.431,
          44.8084,
          44.2161,
          43.6569,
          43.1336,
          42.6492,
          42.2067,
          41.8092,
          41.4596,
          41.1607,
          40.9154,
          40.7262,
          40.5953,
          40.5249,
          40.5165,
          40.5715,
          40.6906,
          40.8744,
          41.1228,
          41.4352,
          41.8108,
          42.2482,
          42.7455,
          43.3009
        ],
        "change": [
          1.6647,
          1.6342,
          1.6013,
          1.566,
          1.5282,
          1.4878,
          1.4445,
          1.3984,
          1.3493,
          1.2973,
          1.242,
          1.1836,
          1.1219,
          1.057,
          0.9888,
          0.9175,
          0.8431,
          0.7658,
          0.6859,
          0.6034,
          0.5189,
          0.4328,
          0.3456,
          0.2579,
          0.1704,
          0.0837,
          -0.001,
          -0.0832,
          -0.1618,
          -0.2358,
          -0.3045,
          -0.3668,
          -0.4219,
          -0.4692,
          -0.5082,
          -0.5384,
          -0.5595,
          -0.5716,
          -0.5746,
          -0.5688,
          -0.5549
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.485,
        "rotation": -1.547,
        "wingChange": -0.05,
        "rmsChange": 0.929
      }
    },
    {
      "label": "28AUG26",
      "expiry": 1787904000000,
      "tauYears": 0.21461378,
      "daysToExpiry": 78.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 61849.14,
        "previous": 62085.94,
        "change": -236.8,
        "percentChange": -0.38
      },
      "atmIv": {
        "current": 43.36,
        "previous": 43.04,
        "change": 0.32,
        "percentChange": 0.74
      },
      "rr25": {
        "current": -8.02,
        "previous": -7.05,
        "change": -0.97,
        "percentChange": -13.76
      },
      "bf25": {
        "current": 2.72,
        "previous": 2.61,
        "change": 0.11,
        "percentChange": 4.21
      },
      "svi": {
        "a": {
          "current": -0.0613,
          "previous": -0.0919,
          "change": 0.0306,
          "percentChange": 33.34
        },
        "b": {
          "current": 0.1844,
          "previous": 0.2003,
          "change": -0.0158,
          "percentChange": -7.91
        },
        "rho": {
          "current": 0.1355,
          "previous": 0.1264,
          "change": 0.0091,
          "percentChange": 7.23
        },
        "m": {
          "current": 0.276,
          "previous": 0.2761,
          "change": -0.0,
          "percentChange": -0.01
        },
        "sigma": {
          "current": 0.5267,
          "previous": 0.6432,
          "change": -0.1165,
          "percentChange": -18.11
        }
      },
      "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": [
          56.4142,
          55.7268,
          55.0414,
          54.3587,
          53.6793,
          53.0038,
          52.3329,
          51.6675,
          51.0082,
          50.356,
          49.712,
          49.0771,
          48.4524,
          47.8391,
          47.2386,
          46.6521,
          46.0811,
          45.5271,
          44.9917,
          44.4765,
          43.9833,
          43.5138,
          43.0698,
          42.6533,
          42.266,
          41.9098,
          41.5865,
          41.298,
          41.046,
          40.832,
          40.6576,
          40.5241,
          40.4328,
          40.3845,
          40.3801,
          40.42,
          40.5046,
          40.6339,
          40.8077,
          41.0255,
          41.2865
        ],
        "previous": [
          55.289,
          54.6151,
          53.9456,
          53.281,
          52.6221,
          51.9696,
          51.3242,
          50.6867,
          50.058,
          49.439,
          48.8307,
          48.234,
          47.6501,
          47.0801,
          46.5252,
          45.9866,
          45.4656,
          44.9635,
          44.4817,
          44.0216,
          43.5845,
          43.1721,
          42.7856,
          42.4265,
          42.0963,
          41.7964,
          41.528,
          41.2925,
          41.0911,
          40.9248,
          40.7946,
          40.7015,
          40.646,
          40.629,
          40.6506,
          40.7112,
          40.8108,
          40.9494,
          41.1266,
          41.342,
          41.5951
        ],
        "change": [
          1.1252,
          1.1117,
          1.0958,
          1.0777,
          1.0572,
          1.0342,
          1.0087,
          0.9808,
          0.9502,
          0.917,
          0.8813,
          0.8431,
          0.8023,
          0.759,
          0.7134,
          0.6655,
          0.6155,
          0.5636,
          0.51,
          0.4549,
          0.3988,
          0.3417,
          0.2842,
          0.2268,
          0.1697,
          0.1134,
          0.0585,
          0.0055,
          -0.0451,
          -0.0928,
          -0.137,
          -0.1774,
          -0.2132,
          -0.2445,
          -0.2705,
          -0.2912,
          -0.3062,
          -0.3155,
          -0.3189,
          -0.3165,
          -0.3086
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.381,
        "rotation": -1.018,
        "wingChange": -0.027,
        "rmsChange": 0.641
      }
    },
    {
      "label": "25SEP26",
      "expiry": 1790323200000,
      "tauYears": 0.29132611,
      "daysToExpiry": 106.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62021.63,
        "previous": 62261.82,
        "change": -240.19,
        "percentChange": -0.39
      },
      "atmIv": {
        "current": 43.47,
        "previous": 42.86,
        "change": 0.61,
        "percentChange": 1.42
      },
      "rr25": {
        "current": -6.75,
        "previous": -6.04,
        "change": -0.71,
        "percentChange": -11.75
      },
      "bf25": {
        "current": 2.73,
        "previous": 2.72,
        "change": 0.01,
        "percentChange": 0.37
      },
      "svi": {
        "a": {
          "current": -0.1631,
          "previous": -0.1701,
          "change": 0.0071,
          "percentChange": 4.16
        },
        "b": {
          "current": 0.2458,
          "previous": 0.2481,
          "change": -0.0023,
          "percentChange": -0.92
        },
        "rho": {
          "current": 0.0005,
          "previous": -0.0242,
          "change": 0.0246,
          "percentChange": 101.88
        },
        "m": {
          "current": 0.2214,
          "previous": 0.1794,
          "change": 0.042,
          "percentChange": 23.39
        },
        "sigma": {
          "current": 0.8659,
          "previous": 0.8869,
          "change": -0.021,
          "percentChange": -2.36
        }
      },
      "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": [
          54.1244,
          53.525,
          52.9321,
          52.3462,
          51.768,
          51.1979,
          50.6366,
          50.0848,
          49.543,
          49.0119,
          48.4922,
          47.9846,
          47.4898,
          47.0086,
          46.5417,
          46.0899,
          45.654,
          45.2348,
          44.8329,
          44.4493,
          44.0846,
          43.7397,
          43.4153,
          43.1122,
          42.831,
          42.5724,
          42.337,
          42.1255,
          41.9383,
          41.776,
          41.6391,
          41.5278,
          41.4425,
          41.3835,
          41.3508,
          41.3446,
          41.3649,
          41.4117,
          41.4848,
          41.584,
          41.709
        ],
        "previous": [
          53.0781,
          52.486,
          51.9015,
          51.3252,
          50.7576,
          50.1994,
          49.651,
          49.1133,
          48.5869,
          48.0724,
          47.5706,
          47.0822,
          46.6078,
          46.1483,
          45.7045,
          45.2769,
          44.8665,
          44.4739,
          44.1,
          43.7454,
          43.4109,
          43.0971,
          42.8049,
          42.5348,
          42.2873,
          42.0633,
          41.863,
          41.6871,
          41.5359,
          41.4099,
          41.3093,
          41.2343,
          41.1852,
          41.1621,
          41.1649,
          41.1936,
          41.2482,
          41.3284,
          41.434,
          41.5647,
          41.7202
        ],
        "change": [
          1.0463,
          1.039,
          1.0306,
          1.021,
          1.0104,
          0.9985,
          0.9856,
          0.9715,
          0.9561,
          0.9395,
          0.9216,
          0.9024,
          0.882,
          0.8603,
          0.8372,
          0.813,
          0.7875,
          0.7609,
          0.7329,
          0.7039,
          0.6737,
          0.6426,
          0.6104,
          0.5774,
          0.5437,
          0.5091,
          0.474,
          0.4384,
          0.4024,
          0.3661,
          0.3298,
          0.2935,
          0.2573,
          0.2214,
          0.1859,
          0.151,
          0.1167,
          0.0833,
          0.0508,
          0.0193,
          -0.0112
        ],
        "classification": [
          "rotation towards puts"
        ],
        "parallelShift": 0.642,
        "rotation": -0.592,
        "wingChange": -0.048,
        "rmsChange": 0.699
      }
    },
    {
      "label": "25DEC26",
      "expiry": 1798185600000,
      "tauYears": 0.54064118,
      "daysToExpiry": 197.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 62663.85,
        "previous": 62905.03,
        "change": -241.18,
        "percentChange": -0.38
      },
      "atmIv": {
        "current": 44.5,
        "previous": 44.23,
        "change": 0.27,
        "percentChange": 0.61
      },
      "rr25": {
        "current": -5.66,
        "previous": -5.09,
        "change": -0.57,
        "percentChange": -11.2
      },
      "bf25": {
        "current": 2.94,
        "previous": 2.89,
        "change": 0.05,
        "percentChange": 1.73
      },
      "svi": {
        "a": {
          "current": -0.1794,
          "previous": -0.2197,
          "change": 0.0403,
          "percentChange": 18.33
        },
        "b": {
          "current": 0.2882,
          "previous": 0.3073,
          "change": -0.0192,
          "percentChange": -6.24
        },
        "rho": {
          "current": -0.1127,
          "previous": -0.2123,
          "change": 0.0997,
          "percentChange": 46.94
        },
        "m": {
          "current": 0.1523,
          "previous": 0.016,
          "change": 0.1363,
          "percentChange": 852.54
        },
        "sigma": {
          "current": 0.9781,
          "previous": 1.0679,
          "change": -0.0898,
          "percentChange": -8.41
        }
      },
      "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": [
          51.9301,
          51.5231,
          51.122,
          50.7271,
          50.3386,
          49.957,
          49.5825,
          49.2153,
          48.856,
          48.5047,
          48.1617,
          47.8275,
          47.5024,
          47.1866,
          46.8806,
          46.5845,
          46.2988,
          46.0238,
          45.7597,
          45.5069,
          45.2656,
          45.0362,
          44.8189,
          44.614,
          44.4216,
          44.2422,
          44.0757,
          43.9225,
          43.7827,
          43.6565,
          43.544,
          43.4454,
          43.3606,
          43.2898,
          43.2331,
          43.1903,
          43.1617,
          43.147,
          43.1464,
          43.1596,
          43.1866
        ],
        "previous": [
          51.3338,
          50.9274,
          50.5283,
          50.1367,
          49.7529,
          49.3772,
          49.01,
          48.6514,
          48.3018,
          47.9615,
          47.6308,
          47.3098,
          46.9991,
          46.6986,
          46.4089,
          46.13,
          45.8624,
          45.6061,
          45.3614,
          45.1286,
          44.9078,
          44.6992,
          44.5031,
          44.3196,
          44.1487,
          43.9907,
          43.8457,
          43.7137,
          43.5949,
          43.4892,
          43.3968,
          43.3176,
          43.2516,
          43.1988,
          43.1593,
          43.1328,
          43.1194,
          43.119,
          43.1314,
          43.1565,
          43.1942
        ],
        "change": [
          0.5963,
          0.5957,
          0.5937,
          0.5904,
          0.5857,
          0.5798,
          0.5725,
          0.5639,
          0.5542,
          0.5432,
          0.5309,
          0.5177,
          0.5033,
          0.488,
          0.4717,
          0.4545,
          0.4364,
          0.4177,
          0.3983,
          0.3783,
          0.3578,
          0.337,
          0.3158,
          0.2944,
          0.2729,
          0.2515,
          0.23,
          0.2088,
          0.1878,
          0.1673,
          0.1472,
          0.1278,
          0.109,
          0.091,
          0.0738,
          0.0575,
          0.0423,
          0.028,
          0.015,
          0.0031,
          -0.0076
        ],
        "classification": [
          "parallel shift higher"
        ],
        "parallelShift": 0.345,
        "rotation": -0.384,
        "wingChange": -0.019,
        "rmsChange": 0.391
      }
    },
    {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "tauYears": 0.78995625,
      "daysToExpiry": 288.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 63314.9,
        "previous": 63573.01,
        "change": -258.11,
        "percentChange": -0.41
      },
      "atmIv": {
        "current": 44.77,
        "previous": 44.77,
        "change": 0.0,
        "percentChange": 0.0
      },
      "rr25": {
        "current": -4.42,
        "previous": -4.0,
        "change": -0.42,
        "percentChange": -10.5
      },
      "bf25": {
        "current": 3.08,
        "previous": 2.98,
        "change": 0.1,
        "percentChange": 3.36
      },
      "svi": {
        "a": {
          "current": -0.1929,
          "previous": -0.2277,
          "change": 0.0348,
          "percentChange": 15.28
        },
        "b": {
          "current": 0.3314,
          "previous": 0.3536,
          "change": -0.0223,
          "percentChange": -6.3
        },
        "rho": {
          "current": -0.2274,
          "previous": -0.3154,
          "change": 0.088,
          "percentChange": 27.91
        },
        "m": {
          "current": 0.0204,
          "previous": -0.1193,
          "change": 0.1397,
          "percentChange": 117.07
        },
        "sigma": {
          "current": 1.0717,
          "previous": 1.1386,
          "change": -0.0669,
          "percentChange": -5.87
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          50.5547,
          50.2378,
          49.9267,
          49.6217,
          49.3229,
          49.0305,
          48.7448,
          48.4658,
          48.1939,
          47.9291,
          47.6717,
          47.4218,
          47.1797,
          46.9454,
          46.7192,
          46.5012,
          46.2917,
          46.0906,
          45.8982,
          45.7145,
          45.5398,
          45.3741,
          45.2176,
          45.0703,
          44.9322,
          44.8036,
          44.6844,
          44.5747,
          44.4746,
          44.384,
          44.303,
          44.2316,
          44.1697,
          44.1175,
          44.0748,
          44.0416,
          44.0178,
          44.0035,
          43.9985,
          44.0027,
          44.0161
        ],
        "previous": [
          50.2484,
          49.9372,
          49.6328,
          49.3351,
          49.0445,
          48.761,
          48.4848,
          48.2161,
          47.955,
          47.7017,
          47.4563,
          47.2189,
          46.9898,
          46.7689,
          46.5565,
          46.3525,
          46.1573,
          45.9707,
          45.7929,
          45.624,
          45.4641,
          45.3132,
          45.1713,
          45.0385,
          44.9149,
          44.8003,
          44.695,
          44.5988,
          44.5117,
          44.4338,
          44.3649,
          44.3052,
          44.2544,
          44.2126,
          44.1797,
          44.1556,
          44.1403,
          44.1337,
          44.1355,
          44.1459,
          44.1646
        ],
        "change": [
          0.3063,
          0.3006,
          0.2939,
          0.2866,
          0.2784,
          0.2695,
          0.26,
          0.2497,
          0.2389,
          0.2274,
          0.2154,
          0.2029,
          0.1899,
          0.1765,
          0.1627,
          0.1487,
          0.1344,
          0.1199,
          0.1053,
          0.0905,
          0.0757,
          0.0609,
          0.0463,
          0.0318,
          0.0173,
          0.0033,
          -0.0106,
          -0.0241,
          -0.0371,
          -0.0498,
          -0.0619,
          -0.0736,
          -0.0847,
          -0.0951,
          -0.1049,
          -0.114,
          -0.1225,
          -0.1302,
          -0.137,
          -0.1432,
          -0.1485
        ],
        "classification": [
          "limited movement"
        ],
        "parallelShift": 0.076,
        "rotation": -0.277,
        "wingChange": 0.001,
        "rmsChange": 0.168
      }
    }
  ],
  "events": [
    {
      "type": "rotation",
      "title": "Largest eligible smile rotation",
      "label": "19JUN26",
      "value": -3.395,
      "score": 3.395,
      "unit": "volatility points"
    },
    {
      "type": "atmIv",
      "title": "Largest standard-tenor ATM IV move",
      "label": "1W",
      "value": 1.84,
      "score": 1.84,
      "unit": "volatility points"
    },
    {
      "type": "rr25",
      "title": "Largest standard-tenor RR25 move",
      "label": "1W",
      "value": -1.25,
      "score": 1.25,
      "unit": "volatility points"
    },
    {
      "type": "bf25",
      "title": "Largest standard-tenor BF25 move",
      "label": "1Y",
      "value": 0.12,
      "score": 0.12,
      "unit": "volatility points"
    },
    {
      "type": "sigma",
      "title": "Largest eligible SVI sigma move",
      "label": "28AUG26",
      "value": -0.1165,
      "score": 0.1165,
      "unit": "parameter units"
    },
    {
      "type": "rho",
      "title": "Largest eligible SVI rho move",
      "label": "25DEC26",
      "value": 0.0997,
      "score": 0.0997,
      "unit": "parameter units"
    }
  ],
  "expiryEffects": [
    {
      "label": "11JUN26",
      "daysToExpiry": 0.334,
      "metric": "Smile rotation",
      "value": -10.863,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    },
    {
      "label": "12JUN26",
      "daysToExpiry": 1.334,
      "metric": "Smile rotation",
      "value": -8.864,
      "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": 220.10099316,
      "metric": "vega",
      "availability": "available"
    },
    "highestGamma": {
      "label": "11JUN26",
      "expiry": 1781164800000,
      "value": 0.000416706466,
      "metric": "gamma",
      "availability": "available"
    },
    "highestThetaDecay": {
      "label": "11JUN26",
      "expiry": 1781164800000,
      "value": -571.66869272,
      "metric": "theta",
      "availability": "available"
    },
    "highestVanna": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 0.00173815,
      "metric": "vanna",
      "availability": "available"
    },
    "highestVolga": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": -19.46041707,
      "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": "11JUN26",
        "values": [
          132.5973,
          126.1132,
          119.5499,
          112.9098,
          106.1962,
          99.4127,
          92.564,
          85.6553,
          78.6925,
          71.6825,
          64.6334,
          57.5548,
          50.4591,
          43.363,
          36.2926,
          29.2904,
          22.4324,
          15.8604,
          9.8416,
          4.8614,
          1.6844,
          1.1587,
          3.5976,
          8.4009,
          14.5563,
          21.2628,
          28.0722,
          34.7803,
          41.3091,
          47.6381,
          53.7701,
          59.7163,
          65.4898,
          71.1033,
          76.5682,
          81.8948,
          87.092,
          92.1678,
          97.1289,
          101.982,
          106.7324
        ]
      },
      {
        "label": "12JUN26",
        "values": [
          32.1846,
          30.4854,
          28.7969,
          27.1213,
          25.4606,
          23.8168,
          22.1923,
          20.5888,
          19.0086,
          17.4534,
          15.9254,
          14.4262,
          12.9584,
          11.5247,
          10.1291,
          8.7778,
          7.4809,
          6.2555,
          5.128,
          4.1376,
          3.3343,
          2.7709,
          2.4852,
          2.4845,
          2.7418,
          3.2075,
          3.8273,
          4.5534,
          5.35,
          6.1914,
          7.0611,
          7.9482,
          8.8456,
          9.7491,
          10.6563,
          11.5655,
          12.4756,
          13.3862,
          14.297,
          15.2076,
          16.1179
        ]
      },
      {
        "label": "13JUN26",
        "values": [
          19.999,
          19.029,
          18.0581,
          17.0877,
          16.1188,
          15.1528,
          14.1914,
          13.2361,
          12.2895,
          11.3535,
          10.4314,
          9.5269,
          8.6441,
          7.7891,
          6.9691,
          6.194,
          5.4762,
          4.832,
          4.2814,
          3.8476,
          3.5539,
          3.4194,
          3.4534,
          3.651,
          3.9941,
          4.4555,
          5.0063,
          5.6201,
          6.2759,
          6.9581,
          7.6561,
          8.3623,
          9.072,
          9.7819,
          10.4901,
          11.1952,
          11.8966,
          12.5936,
          13.286,
          13.9736,
          14.6563
        ]
      },
      {
        "label": "19JUN26",
        "values": [
          5.1298,
          5.0085,
          4.8887,
          4.7702,
          4.6529,
          4.5365,
          4.4208,
          4.3054,
          4.1897,
          4.0734,
          3.9555,
          3.8352,
          3.7117,
          3.5834,
          3.4495,
          3.3084,
          3.1587,
          2.9991,
          2.8286,
          2.6465,
          2.4531,
          2.2492,
          2.0368,
          1.8193,
          1.6012,
          1.3873,
          1.1833,
          0.9945,
          0.8255,
          0.6801,
          0.5609,
          0.4693,
          0.4058,
          0.3701,
          0.3612,
          0.378,
          0.4187,
          0.482,
          0.566,
          0.6689,
          0.7895
        ]
      },
      {
        "label": "26JUN26",
        "values": [
          2.433,
          2.3797,
          2.3288,
          2.2802,
          2.2343,
          2.1912,
          2.151,
          2.1137,
          2.0796,
          2.0486,
          2.0208,
          1.9962,
          1.9745,
          1.9558,
          1.9398,
          1.926,
          1.914,
          1.9034,
          1.8935,
          1.8836,
          1.8731,
          1.8612,
          1.8474,
          1.8314,
          1.813,
          1.7926,
          1.7705,
          1.7475,
          1.725,
          1.7042,
          1.6865,
          1.6734,
          1.666,
          1.6655,
          1.6728,
          1.6886,
          1.7131,
          1.7468,
          1.7896,
          1.8413,
          1.9018
        ]
      },
      {
        "label": "31JUL26",
        "values": [
          1.6647,
          1.6342,
          1.6013,
          1.566,
          1.5282,
          1.4878,
          1.4445,
          1.3984,
          1.3493,
          1.2973,
          1.242,
          1.1836,
          1.1219,
          1.057,
          0.9888,
          0.9175,
          0.8431,
          0.7658,
          0.6859,
          0.6034,
          0.5189,
          0.4328,
          0.3456,
          0.2579,
          0.1704,
          0.0837,
          -0.001,
          -0.0832,
          -0.1618,
          -0.2358,
          -0.3045,
          -0.3668,
          -0.4219,
          -0.4692,
          -0.5082,
          -0.5384,
          -0.5595,
          -0.5716,
          -0.5746,
          -0.5688,
          -0.5549
        ]
      },
      {
        "label": "28AUG26",
        "values": [
          1.1252,
          1.1117,
          1.0958,
          1.0777,
          1.0572,
          1.0342,
          1.0087,
          0.9808,
          0.9502,
          0.917,
          0.8813,
          0.8431,
          0.8023,
          0.759,
          0.7134,
          0.6655,
          0.6155,
          0.5636,
          0.51,
          0.4549,
          0.3988,
          0.3417,
          0.2842,
          0.2268,
          0.1697,
          0.1134,
          0.0585,
          0.0055,
          -0.0451,
          -0.0928,
          -0.137,
          -0.1774,
          -0.2132,
          -0.2445,
          -0.2705,
          -0.2912,
          -0.3062,
          -0.3155,
          -0.3189,
          -0.3165,
          -0.3086
        ]
      },
      {
        "label": "25SEP26",
        "values": [
          1.0463,
          1.039,
          1.0306,
          1.021,
          1.0104,
          0.9985,
          0.9856,
          0.9715,
          0.9561,
          0.9395,
          0.9216,
          0.9024,
          0.882,
          0.8603,
          0.8372,
          0.813,
          0.7875,
          0.7609,
          0.7329,
          0.7039,
          0.6737,
          0.6426,
          0.6104,
          0.5774,
          0.5437,
          0.5091,
          0.474,
          0.4384,
          0.4024,
          0.3661,
          0.3298,
          0.2935,
          0.2573,
          0.2214,
          0.1859,
          0.151,
          0.1167,
          0.0833,
          0.0508,
          0.0193,
          -0.0112
        ]
      },
      {
        "label": "25DEC26",
        "values": [
          0.5963,
          0.5957,
          0.5937,
          0.5904,
          0.5857,
          0.5798,
          0.5725,
          0.5639,
          0.5542,
          0.5432,
          0.5309,
          0.5177,
          0.5033,
          0.488,
          0.4717,
          0.4545,
          0.4364,
          0.4177,
          0.3983,
          0.3783,
          0.3578,
          0.337,
          0.3158,
          0.2944,
          0.2729,
          0.2515,
          0.23,
          0.2088,
          0.1878,
          0.1673,
          0.1472,
          0.1278,
          0.109,
          0.091,
          0.0738,
          0.0575,
          0.0423,
          0.028,
          0.015,
          0.0031,
          -0.0076
        ]
      },
      {
        "label": "26MAR27",
        "values": [
          0.3063,
          0.3006,
          0.2939,
          0.2866,
          0.2784,
          0.2695,
          0.26,
          0.2497,
          0.2389,
          0.2274,
          0.2154,
          0.2029,
          0.1899,
          0.1765,
          0.1627,
          0.1487,
          0.1344,
          0.1199,
          0.1053,
          0.0905,
          0.0757,
          0.0609,
          0.0463,
          0.0318,
          0.0173,
          0.0033,
          -0.0106,
          -0.0241,
          -0.0371,
          -0.0498,
          -0.0619,
          -0.0736,
          -0.0847,
          -0.0951,
          -0.1049,
          -0.114,
          -0.1225,
          -0.1302,
          -0.137,
          -0.1432,
          -0.1485
        ]
      }
    ]
  }
}
