{
  "schemaVersion": 2,
  "reportDate": "2026-05-17",
  "generatedAt": "2026-07-25T18:42:33+00:00",
  "currentSnapshotAt": "2026-05-17T23:59:00+00:00",
  "previousSnapshotAt": "2026-05-16T23:59:00+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": 0.1297906,
    "previousObjective": 0.30277483,
    "currentLiveError": 281.91099252,
    "previousLiveError": 305.08983691
  },
  "coverage": {
    "currentListedExpiries": 12,
    "previousListedExpiries": 12,
    "comparedListedExpiries": 11,
    "addedExpiries": [
      "21MAY26"
    ],
    "removedExpiries": [
      "17MAY26"
    ],
    "fixedTenors": [
      "1W",
      "2W",
      "1M",
      "3M",
      "6M",
      "9M",
      "1Y"
    ]
  },
  "commentary": {
    "source": "deterministic",
    "model": null,
    "headline": "BTC daily surface: 1W ATM IV rises 2.54 volatility points",
    "executiveSummary": "Across the six headline tenors, ATM IV averaged +0.67 volatility points, RR25 +0.41 volatility points and BF25 -0.15 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 decreased, averaging -0.15 volatility points across 6M and 1Y."
      },
      {
        "id": "rr25",
        "label": "Skew",
        "text": "RR25 moved towards calls, averaging +0.41 volatility points across the six headline tenors."
      },
      {
        "id": "bf25",
        "label": "Convexity",
        "text": "BF25 decreased, averaging -0.15 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 +2.54 volatility points at 1W.",
        "tenor": "1W",
        "value": 2.54
      }
    ],
    "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 decreased, averaging -0.15 volatility points across 6M and 1Y."
    },
    {
      "id": "rr25",
      "label": "Skew",
      "text": "RR25 moved towards calls, averaging +0.41 volatility points across the six headline tenors."
    },
    {
      "id": "bf25",
      "label": "Convexity",
      "text": "BF25 decreased, averaging -0.15 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 +2.54 volatility points at 1W.",
      "tenor": "1W",
      "value": 2.54
    }
  ],
  "summaryMetrics": {
    "basis": "Average change across 1W, 2W, 1M, 3M, 6M and 1Y",
    "unit": "volatility points",
    "atmIvChange": 0.67,
    "rr25Change": 0.41,
    "bf25Change": -0.15
  },
  "tenors": [
    {
      "tenor": "1W",
      "targetExpiry": 1779667142127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 38.29,
        "previous": 35.75,
        "change": 2.54,
        "percentChange": 7.1
      },
      "rr25": {
        "current": -5.06,
        "previous": -5.81,
        "change": 0.75,
        "percentChange": 12.91
      },
      "bf25": {
        "current": 2.04,
        "previous": 2.21,
        "change": -0.17,
        "percentChange": -7.69
      }
    },
    {
      "tenor": "2W",
      "targetExpiry": 1780271942127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.59,
        "previous": 36.21,
        "change": 1.38,
        "percentChange": 3.81
      },
      "rr25": {
        "current": -6.04,
        "previous": -7.22,
        "change": 1.18,
        "percentChange": 16.34
      },
      "bf25": {
        "current": 2.2,
        "previous": 2.38,
        "change": -0.18,
        "percentChange": -7.56
      }
    },
    {
      "tenor": "1M",
      "targetExpiry": 1781654342127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 37.83,
        "previous": 37.28,
        "change": 0.55,
        "percentChange": 1.48
      },
      "rr25": {
        "current": -7.04,
        "previous": -7.35,
        "change": 0.31,
        "percentChange": 4.22
      },
      "bf25": {
        "current": 2.36,
        "previous": 2.57,
        "change": -0.21,
        "percentChange": -8.17
      }
    },
    {
      "tenor": "3M",
      "targetExpiry": 1786924742127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 39.1,
        "previous": 39.23,
        "change": -0.13,
        "percentChange": -0.33
      },
      "rr25": {
        "current": -6.37,
        "previous": -6.55,
        "change": 0.18,
        "percentChange": 2.75
      },
      "bf25": {
        "current": 2.33,
        "previous": 2.49,
        "change": -0.16,
        "percentChange": -6.43
      }
    },
    {
      "tenor": "6M",
      "targetExpiry": 1794787142127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 41.96,
        "previous": 42.13,
        "change": -0.17,
        "percentChange": -0.4
      },
      "rr25": {
        "current": -5.59,
        "previous": -5.61,
        "change": 0.02,
        "percentChange": 0.36
      },
      "bf25": {
        "current": 2.39,
        "previous": 2.53,
        "change": -0.14,
        "percentChange": -5.53
      }
    },
    {
      "tenor": "9M",
      "targetExpiry": 1802649542127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 43.47,
        "previous": 43.62,
        "change": -0.15,
        "percentChange": -0.34
      },
      "rr25": {
        "current": -5.09,
        "previous": -5.12,
        "change": 0.03,
        "percentChange": 0.59
      },
      "bf25": {
        "current": 2.39,
        "previous": 2.44,
        "change": -0.05,
        "percentChange": -2.05
      }
    },
    {
      "tenor": "1Y",
      "targetExpiry": 1810598342127,
      "availability": "available",
      "unavailableReason": null,
      "atmIv": {
        "current": 44.19,
        "previous": 44.31,
        "change": -0.12,
        "percentChange": -0.27
      },
      "rr25": {
        "current": -4.73,
        "previous": -4.75,
        "change": 0.02,
        "percentChange": 0.42
      },
      "bf25": {
        "current": 2.31,
        "previous": 2.33,
        "change": -0.02,
        "percentChange": -0.86
      }
    }
  ],
  "listedExpiries": [
    {
      "label": "18MAY26",
      "expiry": 1779091200000,
      "tauYears": 0.00091515,
      "daysToExpiry": 0.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 77407.47,
        "previous": 78127.95,
        "change": -720.48,
        "percentChange": -0.92
      },
      "atmIv": {
        "current": 42.52,
        "previous": 31.48,
        "change": 11.04,
        "percentChange": 35.07
      },
      "rr25": {
        "current": -0.36,
        "previous": -3.55,
        "change": 3.19,
        "percentChange": 89.86
      },
      "bf25": {
        "current": 1.06,
        "previous": 1.29,
        "change": -0.23,
        "percentChange": -17.83
      },
      "svi": {
        "a": {
          "current": -0.0974,
          "previous": -0.0495,
          "change": -0.0479,
          "percentChange": -96.8
        },
        "b": {
          "current": 0.1025,
          "previous": 0.0917,
          "change": 0.0108,
          "percentChange": 11.76
        },
        "rho": {
          "current": -0.0192,
          "previous": -0.1743,
          "change": 0.1551,
          "percentChange": 88.97
        },
        "m": {
          "current": -0.0168,
          "previous": -0.0783,
          "change": 0.0615,
          "percentChange": 78.58
        },
        "sigma": {
          "current": 0.9516,
          "previous": 0.5515,
          "change": 0.4001,
          "percentChange": 72.56
        }
      },
      "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": [
          233.0642,
          222.0799,
          211.0834,
          200.0799,
          189.0754,
          178.0771,
          167.0937,
          156.136,
          145.2175,
          134.3553,
          123.5722,
          112.8986,
          102.3765,
          92.0655,
          82.0526,
          72.4688,
          63.5153,
          55.5042,
          48.9054,
          44.3569,
          42.5228,
          43.7445,
          47.7848,
          54.0101,
          61.7575,
          70.5208,
          79.9598,
          89.8549,
          100.0635,
          110.4915,
          121.0748,
          131.7685,
          142.5404,
          153.3667,
          164.2293,
          175.1142,
          186.0103,
          196.9087,
          207.8021,
          218.6844,
          229.5505
        ],
        "previous": [
          153.2746,
          146.54,
          139.7817,
          133.0044,
          126.2135,
          119.4153,
          112.6169,
          105.8269,
          99.0555,
          92.3148,
          85.6198,
          78.9894,
          72.4478,
          66.0269,
          59.7699,
          53.7369,
          48.0129,
          42.7205,
          38.0351,
          34.1981,
          31.508,
          30.2549,
          30.5959,
          32.4591,
          35.5843,
          39.6526,
          44.3845,
          49.5705,
          55.0634,
          60.7623,
          66.5972,
          72.5197,
          78.4948,
          84.4974,
          90.5088,
          96.515,
          102.5054,
          108.4715,
          114.4071,
          120.3071,
          126.1675
        ],
        "change": [
          79.7896,
          75.5399,
          71.3017,
          67.0755,
          62.8619,
          58.6618,
          54.4768,
          50.3091,
          46.162,
          42.0405,
          37.9524,
          33.9092,
          29.9287,
          26.0386,
          22.2827,
          18.7319,
          15.5024,
          12.7837,
          10.8703,
          10.1588,
          11.0148,
          13.4896,
          17.1889,
          21.551,
          26.1732,
          30.8682,
          35.5753,
          40.2844,
          45.0001,
          49.7292,
          54.4776,
          59.2488,
          64.0456,
          68.8693,
          73.7205,
          78.5992,
          83.5049,
          88.4372,
          93.395,
          98.3773,
          103.383
        ],
        "classification": [
          "rotation towards calls",
          "wing steepening"
        ],
        "parallelShift": 34.482,
        "rotation": 16.525,
        "wingChange": 35.2,
        "rmsChange": 55.213
      }
    },
    {
      "label": "19MAY26",
      "expiry": 1779177600000,
      "tauYears": 0.00365488,
      "daysToExpiry": 1.334,
      "expiryClassification": "ultra-short",
      "rankingEligible": false,
      "forward": {
        "current": 77397.48,
        "previous": 78128.53,
        "change": -731.05,
        "percentChange": -0.94
      },
      "atmIv": {
        "current": 40.93,
        "previous": 32.52,
        "change": 8.41,
        "percentChange": 25.86
      },
      "rr25": {
        "current": -2.98,
        "previous": -3.88,
        "change": 0.9,
        "percentChange": 23.2
      },
      "bf25": {
        "current": 1.24,
        "previous": 1.82,
        "change": -0.58,
        "percentChange": -31.87
      },
      "svi": {
        "a": {
          "current": -0.0979,
          "previous": -0.0371,
          "change": -0.0608,
          "percentChange": -163.64
        },
        "b": {
          "current": 0.1124,
          "previous": 0.0932,
          "change": 0.0191,
          "percentChange": 20.5
        },
        "rho": {
          "current": -0.1052,
          "previous": -0.1551,
          "change": 0.0499,
          "percentChange": 32.19
        },
        "m": {
          "current": -0.0722,
          "previous": -0.0443,
          "change": -0.028,
          "percentChange": -63.17
        },
        "sigma": {
          "current": 0.8813,
          "previous": 0.4099,
          "change": 0.4713,
          "percentChange": 114.98
        }
      },
      "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": [
          139.1774,
          133.2937,
          127.4212,
          121.5649,
          115.7306,
          109.9251,
          104.1564,
          98.4342,
          92.77,
          87.1781,
          81.676,
          76.2856,
          71.0346,
          65.9581,
          61.1012,
          56.5215,
          52.2923,
          48.5052,
          45.2703,
          42.7113,
          40.9526,
          40.0957,
          40.1941,
          41.2359,
          43.1472,
          45.8134,
          49.1056,
          52.901,
          57.0932,
          61.595,
          66.3375,
          71.2666,
          76.3404,
          81.5263,
          86.7987,
          92.1372,
          97.5259,
          102.9518,
          108.4044,
          113.875,
          119.3566
        ],
        "previous": [
          134.8147,
          129.2397,
          123.6208,
          117.9624,
          112.2695,
          106.5485,
          100.8069,
          95.054,
          89.301,
          83.5615,
          77.8526,
          72.1954,
          66.6168,
          61.1516,
          55.8452,
          50.7582,
          45.9723,
          41.5973,
          37.7787,
          34.6986,
          32.5601,
          31.5429,
          31.7383,
          33.1046,
          35.4846,
          38.6682,
          42.4517,
          46.6663,
          51.1833,
          55.9082,
          60.7723,
          65.7258,
          70.7322,
          75.7644,
          80.8022,
          85.8305,
          90.8378,
          95.8151,
          100.7559,
          105.6549,
          110.5085
        ],
        "change": [
          4.3627,
          4.054,
          3.8004,
          3.6025,
          3.4611,
          3.3766,
          3.3495,
          3.3802,
          3.469,
          3.6166,
          3.8234,
          4.0902,
          4.4178,
          4.8065,
          5.256,
          5.7633,
          6.32,
          6.9079,
          7.4916,
          8.0127,
          8.3925,
          8.5528,
          8.4558,
          8.1313,
          7.6626,
          7.1452,
          6.6539,
          6.2347,
          5.9099,
          5.6868,
          5.5652,
          5.5408,
          5.6082,
          5.7619,
          5.9965,
          6.3067,
          6.6881,
          7.1367,
          7.6485,
          8.2201,
          8.8481
        ],
        "classification": [
          "rotation towards calls",
          "wing flattening"
        ],
        "parallelShift": 5.927,
        "rotation": 1.742,
        "wingChange": -3.698,
        "rmsChange": 6.089
      }
    },
    {
      "label": "20MAY26",
      "expiry": 1779264000000,
      "tauYears": 0.0063946,
      "daysToExpiry": 2.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77399.65,
        "previous": 78129.53,
        "change": -729.88,
        "percentChange": -0.93
      },
      "atmIv": {
        "current": 40.42,
        "previous": 34.16,
        "change": 6.26,
        "percentChange": 18.33
      },
      "rr25": {
        "current": -3.7,
        "previous": -4.84,
        "change": 1.14,
        "percentChange": 23.55
      },
      "bf25": {
        "current": 1.74,
        "previous": 2.0,
        "change": -0.26,
        "percentChange": -13.0
      },
      "svi": {
        "a": {
          "current": -0.0741,
          "previous": -0.0393,
          "change": -0.0348,
          "percentChange": -88.75
        },
        "b": {
          "current": 0.1151,
          "previous": 0.0967,
          "change": 0.0184,
          "percentChange": 19.06
        },
        "rho": {
          "current": -0.1041,
          "previous": -0.114,
          "change": 0.0099,
          "percentChange": 8.67
        },
        "m": {
          "current": -0.0438,
          "previous": -0.019,
          "change": -0.0248,
          "percentChange": -130.37
        },
        "sigma": {
          "current": 0.6558,
          "previous": 0.4188,
          "change": 0.237,
          "percentChange": 56.6
        }
      },
      "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": [
          125.2462,
          120.1999,
          115.1541,
          110.114,
          105.0857,
          100.076,
          95.0932,
          90.147,
          85.249,
          80.4132,
          75.6563,
          70.9992,
          66.4674,
          62.0923,
          57.9134,
          53.9793,
          50.3499,
          47.0974,
          44.3054,
          42.0653,
          40.4671,
          39.5857,
          39.465,
          40.1067,
          41.4694,
          43.4784,
          46.0421,
          49.0659,
          52.4627,
          56.157,
          60.0861,
          64.1992,
          68.4556,
          72.8227,
          77.2746,
          81.7905,
          86.3535,
          90.95,
          95.569,
          100.2012,
          104.8392
        ],
        "previous": [
          117.4696,
          112.9157,
          108.3283,
          103.711,
          99.0683,
          94.4057,
          89.7298,
          85.0487,
          80.3721,
          75.712,
          71.0832,
          66.504,
          61.997,
          57.5909,
          53.322,
          49.2368,
          45.3944,
          41.8699,
          38.7563,
          36.1637,
          34.2114,
          33.0107,
          32.6388,
          33.1147,
          34.3918,
          36.3725,
          38.935,
          41.9577,
          45.3331,
          48.9729,
          52.8072,
          56.7821,
          60.8561,
          64.997,
          69.1803,
          73.3869,
          77.6018,
          81.8134,
          86.0124,
          90.1918,
          94.3458
        ],
        "change": [
          7.7766,
          7.2842,
          6.8258,
          6.403,
          6.0174,
          5.6703,
          5.3634,
          5.0983,
          4.8769,
          4.7012,
          4.5731,
          4.4952,
          4.4704,
          4.5014,
          4.5914,
          4.7425,
          4.9555,
          5.2275,
          5.5491,
          5.9016,
          6.2557,
          6.575,
          6.8262,
          6.992,
          7.0776,
          7.1059,
          7.1071,
          7.1082,
          7.1296,
          7.1841,
          7.2789,
          7.4171,
          7.5995,
          7.8257,
          8.0943,
          8.4036,
          8.7517,
          9.1366,
          9.5566,
          10.0094,
          10.4934
        ],
        "classification": [
          "parallel shift higher",
          "rotation towards calls"
        ],
        "parallelShift": 6.036,
        "rotation": 2.706,
        "wingChange": -0.33,
        "rmsChange": 6.842
      }
    },
    {
      "label": "22MAY26",
      "expiry": 1779436800000,
      "tauYears": 0.01187405,
      "daysToExpiry": 4.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77404.0,
        "previous": 78126.87,
        "change": -722.87,
        "percentChange": -0.93
      },
      "atmIv": {
        "current": 39.3,
        "previous": 35.6,
        "change": 3.7,
        "percentChange": 10.39
      },
      "rr25": {
        "current": -5.09,
        "previous": -5.11,
        "change": 0.02,
        "percentChange": 0.39
      },
      "bf25": {
        "current": 2.03,
        "previous": 2.17,
        "change": -0.14,
        "percentChange": -6.45
      },
      "svi": {
        "a": {
          "current": -0.0947,
          "previous": -0.0444,
          "change": -0.0503,
          "percentChange": -113.11
        },
        "b": {
          "current": 0.1421,
          "previous": 0.1055,
          "change": 0.0366,
          "percentChange": 34.69
        },
        "rho": {
          "current": -0.1602,
          "previous": -0.0211,
          "change": -0.1391,
          "percentChange": -658.17
        },
        "m": {
          "current": -0.0715,
          "previous": 0.028,
          "change": -0.0995,
          "percentChange": -355.48
        },
        "sigma": {
          "current": 0.6874,
          "previous": 0.4375,
          "change": 0.2499,
          "percentChange": 57.11
        }
      },
      "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": [
          106.2248,
          102.2098,
          98.2043,
          94.2128,
          90.2404,
          86.2931,
          82.3776,
          78.5017,
          74.6747,
          70.9074,
          67.2123,
          63.6045,
          60.1019,
          56.7258,
          53.5015,
          50.4591,
          47.6339,
          45.0667,
          42.8029,
          40.8916,
          39.3818,
          38.3178,
          37.7337,
          37.6474,
          38.0573,
          38.9421,
          40.2649,
          41.9781,
          44.03,
          46.3695,
          48.9492,
          51.7271,
          54.6669,
          57.738,
          60.915,
          64.1765,
          67.5051,
          70.8862,
          74.3076,
          77.7594,
          81.2332
        ],
        "previous": [
          97.7451,
          94.2947,
          90.8231,
          87.3335,
          83.8297,
          80.3165,
          76.7992,
          73.2849,
          69.7817,
          66.2995,
          62.8507,
          59.4499,
          56.1151,
          52.8684,
          49.7368,
          46.7528,
          43.956,
          41.3933,
          39.1189,
          37.1932,
          35.6784,
          34.6331,
          34.1029,
          34.1127,
          34.6607,
          35.7193,
          37.2404,
          39.1643,
          41.4281,
          43.9717,
          46.7413,
          49.6906,
          52.7808,
          55.98,
          59.2618,
          62.605,
          65.992,
          69.4086,
          72.8431,
          76.2861,
          79.7295
        ],
        "change": [
          8.4797,
          7.9151,
          7.3812,
          6.8793,
          6.4107,
          5.9766,
          5.5784,
          5.2168,
          4.893,
          4.6079,
          4.3616,
          4.1546,
          3.9868,
          3.8574,
          3.7647,
          3.7063,
          3.6779,
          3.6734,
          3.684,
          3.6984,
          3.7034,
          3.6847,
          3.6308,
          3.5347,
          3.3966,
          3.2228,
          3.0245,
          2.8138,
          2.6019,
          2.3978,
          2.2079,
          2.0365,
          1.8861,
          1.758,
          1.6532,
          1.5715,
          1.5131,
          1.4776,
          1.4645,
          1.4733,
          1.5037
        ],
        "classification": [
          "parallel shift higher",
          "rotation towards puts"
        ],
        "parallelShift": 3.424,
        "rotation": -2.154,
        "wingChange": -0.419,
        "rmsChange": 4.139
      }
    },
    {
      "label": "29MAY26",
      "expiry": 1780041600000,
      "tauYears": 0.03105213,
      "daysToExpiry": 11.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77444.99,
        "previous": 78142.7,
        "change": -697.71,
        "percentChange": -0.89
      },
      "atmIv": {
        "current": 37.65,
        "previous": 35.95,
        "change": 1.7,
        "percentChange": 4.73
      },
      "rr25": {
        "current": -5.05,
        "previous": -6.78,
        "change": 1.73,
        "percentChange": 25.52
      },
      "bf25": {
        "current": 2.05,
        "previous": 2.26,
        "change": -0.21,
        "percentChange": -9.29
      },
      "svi": {
        "a": {
          "current": -0.1127,
          "previous": -0.0462,
          "change": -0.0666,
          "percentChange": -144.11
        },
        "b": {
          "current": 0.1597,
          "previous": 0.1123,
          "change": 0.0475,
          "percentChange": 42.28
        },
        "rho": {
          "current": -0.0321,
          "previous": 0.0406,
          "change": -0.0727,
          "percentChange": -179.0
        },
        "m": {
          "current": 0.0368,
          "previous": 0.0926,
          "change": -0.0558,
          "percentChange": -60.3
        },
        "sigma": {
          "current": 0.7314,
          "previous": 0.4448,
          "change": 0.2866,
          "percentChange": 64.42
        }
      },
      "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": [
          75.305,
          73.0023,
          70.7105,
          68.4325,
          66.1719,
          63.9327,
          61.7192,
          59.5365,
          57.3903,
          55.2868,
          53.2335,
          51.2383,
          49.3105,
          47.4602,
          45.699,
          44.0393,
          42.4948,
          41.0801,
          39.8104,
          38.7014,
          37.7681,
          37.0246,
          36.4831,
          36.1529,
          36.0399,
          36.1457,
          36.4679,
          37.0001,
          37.7322,
          38.6517,
          39.7441,
          40.994,
          42.3857,
          43.9037,
          45.5335,
          47.2614,
          49.075,
          50.963,
          52.9152,
          54.9227,
          56.9773
        ],
        "previous": [
          74.263,
          72.174,
          70.0757,
          67.9703,
          65.86,
          63.7476,
          61.6362,
          59.5298,
          57.4328,
          55.3504,
          53.2888,
          51.2553,
          49.2582,
          47.3073,
          45.4138,
          43.5907,
          41.8528,
          40.2167,
          38.7009,
          37.3255,
          36.1117,
          35.081,
          34.2545,
          33.6507,
          33.285,
          33.1674,
          33.3019,
          33.6863,
          34.3117,
          35.1642,
          36.226,
          37.4769,
          38.8956,
          40.461,
          42.1528,
          43.9525,
          45.8429,
          47.8089,
          49.8372,
          51.9159,
          54.0349
        ],
        "change": [
          1.042,
          0.8283,
          0.6348,
          0.4622,
          0.3119,
          0.1851,
          0.083,
          0.0067,
          -0.0425,
          -0.0636,
          -0.0553,
          -0.017,
          0.0523,
          0.1529,
          0.2852,
          0.4486,
          0.642,
          0.8634,
          1.1095,
          1.3759,
          1.6564,
          1.9436,
          2.2286,
          2.5022,
          2.7549,
          2.9783,
          3.166,
          3.3138,
          3.4205,
          3.4875,
          3.5181,
          3.5171,
          3.4901,
          3.4427,
          3.3807,
          3.3089,
          3.2321,
          3.1541,
          3.078,
          3.0068,
          2.9424
        ],
        "classification": [
          "rotation towards calls"
        ],
        "parallelShift": 1.706,
        "rotation": 3.573,
        "wingChange": 0.075,
        "rmsChange": 2.236
      }
    },
    {
      "label": "5JUN26",
      "expiry": 1780646400000,
      "tauYears": 0.05023022,
      "daysToExpiry": 18.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77447.55,
        "previous": 78147.41,
        "change": -699.86,
        "percentChange": -0.9
      },
      "atmIv": {
        "current": 37.53,
        "previous": 36.74,
        "change": 0.79,
        "percentChange": 2.15
      },
      "rr25": {
        "current": -7.04,
        "previous": -8.1,
        "change": 1.06,
        "percentChange": 13.09
      },
      "bf25": {
        "current": 2.34,
        "previous": 2.62,
        "change": -0.28,
        "percentChange": -10.69
      },
      "svi": {
        "a": {
          "current": -0.1005,
          "previous": -0.0949,
          "change": -0.0056,
          "percentChange": -5.92
        },
        "b": {
          "current": 0.1597,
          "previous": 0.1629,
          "change": -0.0032,
          "percentChange": -1.95
        },
        "rho": {
          "current": -0.0321,
          "previous": -0.1012,
          "change": 0.0691,
          "percentChange": 68.28
        },
        "m": {
          "current": 0.0768,
          "previous": 0.0419,
          "change": 0.0348,
          "percentChange": 83.06
        },
        "sigma": {
          "current": 0.667,
          "previous": 0.6212,
          "change": 0.0458,
          "percentChange": 7.38
        }
      },
      "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": [
          68.857,
          67.0444,
          65.2372,
          63.4376,
          61.6479,
          59.8707,
          58.109,
          56.366,
          54.6454,
          52.9512,
          51.2879,
          49.6606,
          48.0748,
          46.5367,
          45.053,
          43.6312,
          42.2791,
          41.0056,
          39.8196,
          38.7307,
          37.7487,
          36.8833,
          36.1439,
          35.5391,
          35.0766,
          34.7623,
          34.6006,
          34.5933,
          34.7404,
          35.0392,
          35.4853,
          36.0721,
          36.7918,
          37.6355,
          38.5936,
          39.6562,
          40.8135,
          42.0559,
          43.3743,
          44.7601,
          46.2053
        ],
        "previous": [
          70.4377,
          68.5282,
          66.6219,
          64.7209,
          62.8274,
          60.9442,
          59.074,
          57.2202,
          55.3863,
          53.5765,
          51.7953,
          50.0477,
          48.3395,
          46.6769,
          45.0669,
          43.5171,
          42.036,
          40.6326,
          39.3169,
          38.0991,
          36.9901,
          36.0007,
          35.1417,
          34.4233,
          33.8545,
          33.4426,
          33.1931,
          33.1088,
          33.19,
          33.434,
          33.8359,
          34.3882,
          35.082,
          35.9069,
          36.8518,
          37.9055,
          39.0568,
          40.2948,
          41.6093,
          42.9908,
          44.4306
        ],
        "change": [
          -1.5807,
          -1.4838,
          -1.3847,
          -1.2833,
          -1.1795,
          -1.0735,
          -0.965,
          -0.8542,
          -0.7409,
          -0.6253,
          -0.5074,
          -0.3871,
          -0.2647,
          -0.1402,
          -0.0139,
          0.1141,
          0.2431,
          0.373,
          0.5027,
          0.6316,
          0.7586,
          0.8826,
          1.0022,
          1.1158,
          1.2221,
          1.3197,
          1.4075,
          1.4845,
          1.5504,
          1.6052,
          1.6494,
          1.6839,
          1.7098,
          1.7286,
          1.7418,
          1.7507,
          1.7567,
          1.7611,
          1.765,
          1.7693,
          1.7747
        ],
        "classification": [
          "rotation towards calls"
        ],
        "parallelShift": 0.634,
        "rotation": 2.157,
        "wingChange": -0.188,
        "rmsChange": 1.249
      }
    },
    {
      "label": "26JUN26",
      "expiry": 1782460800000,
      "tauYears": 0.10776446,
      "daysToExpiry": 39.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77511.83,
        "previous": 78217.11,
        "change": -705.28,
        "percentChange": -0.9
      },
      "atmIv": {
        "current": 37.94,
        "previous": 37.53,
        "change": 0.41,
        "percentChange": 1.09
      },
      "rr25": {
        "current": -7.04,
        "previous": -7.0,
        "change": -0.04,
        "percentChange": -0.57
      },
      "bf25": {
        "current": 2.36,
        "previous": 2.54,
        "change": -0.18,
        "percentChange": -7.09
      },
      "svi": {
        "a": {
          "current": -0.1055,
          "previous": -0.1432,
          "change": 0.0378,
          "percentChange": 26.38
        },
        "b": {
          "current": 0.1788,
          "previous": 0.2063,
          "change": -0.0275,
          "percentChange": -13.35
        },
        "rho": {
          "current": 0.0736,
          "previous": -0.0226,
          "change": 0.0962,
          "percentChange": 425.95
        },
        "m": {
          "current": 0.1877,
          "previous": 0.1147,
          "change": 0.073,
          "percentChange": 63.68
        },
        "sigma": {
          "current": 0.6661,
          "previous": 0.7599,
          "change": -0.0937,
          "percentChange": -12.34
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          57.5523,
          56.4366,
          55.3259,
          54.2213,
          53.1243,
          52.0362,
          50.9586,
          49.8933,
          48.8422,
          47.8073,
          46.7909,
          45.7953,
          44.8231,
          43.8772,
          42.9606,
          42.0763,
          41.2278,
          40.4185,
          39.6522,
          38.9327,
          38.2637,
          37.6493,
          37.0932,
          36.5993,
          36.1711,
          35.8119,
          35.5248,
          35.3122,
          35.1763,
          35.1185,
          35.1396,
          35.2399,
          35.419,
          35.6758,
          36.0085,
          36.4152,
          36.8929,
          37.4388,
          38.0494,
          38.7211,
          39.4503
        ],
        "previous": [
          58.0797,
          56.8741,
          55.6769,
          54.4893,
          53.3131,
          52.1497,
          51.001,
          49.869,
          48.7557,
          47.6634,
          46.5945,
          45.5517,
          44.5377,
          43.5554,
          42.6081,
          41.6988,
          40.8312,
          40.0088,
          39.2351,
          38.514,
          37.8492,
          37.2442,
          36.7028,
          36.2282,
          35.8236,
          35.4917,
          35.2349,
          35.055,
          34.9533,
          34.9305,
          34.9867,
          35.1214,
          35.3333,
          35.6208,
          35.9816,
          36.4131,
          36.9121,
          37.4754,
          38.0994,
          38.7804,
          39.5147
        ],
        "change": [
          -0.5274,
          -0.4375,
          -0.351,
          -0.268,
          -0.1888,
          -0.1135,
          -0.0424,
          0.0243,
          0.0865,
          0.1439,
          0.1964,
          0.2436,
          0.2854,
          0.3218,
          0.3525,
          0.3775,
          0.3966,
          0.4097,
          0.4171,
          0.4187,
          0.4145,
          0.4051,
          0.3904,
          0.3711,
          0.3475,
          0.3202,
          0.2899,
          0.2572,
          0.223,
          0.188,
          0.1529,
          0.1185,
          0.0857,
          0.055,
          0.0269,
          0.0021,
          -0.0192,
          -0.0366,
          -0.05,
          -0.0593,
          -0.0644
        ],
        "classification": [
          "parallel shift higher"
        ],
        "parallelShift": 0.255,
        "rotation": -0.044,
        "wingChange": -0.24,
        "rmsChange": 0.276
      }
    },
    {
      "label": "31JUL26",
      "expiry": 1785484800000,
      "tauYears": 0.20365487,
      "daysToExpiry": 74.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 77641.44,
        "previous": 78375.95,
        "change": -734.51,
        "percentChange": -0.94
      },
      "atmIv": {
        "current": 38.39,
        "previous": 38.53,
        "change": -0.14,
        "percentChange": -0.36
      },
      "rr25": {
        "current": -6.69,
        "previous": -6.98,
        "change": 0.29,
        "percentChange": 4.15
      },
      "bf25": {
        "current": 2.39,
        "previous": 2.46,
        "change": -0.07,
        "percentChange": -2.85
      },
      "svi": {
        "a": {
          "current": -0.1284,
          "previous": -0.1332,
          "change": 0.0048,
          "percentChange": 3.61
        },
        "b": {
          "current": 0.2019,
          "previous": 0.2084,
          "change": -0.0065,
          "percentChange": -3.14
        },
        "rho": {
          "current": -0.0255,
          "previous": -0.0313,
          "change": 0.0058,
          "percentChange": 18.52
        },
        "m": {
          "current": 0.1652,
          "previous": 0.1639,
          "change": 0.0013,
          "percentChange": 0.82
        },
        "sigma": {
          "current": 0.7664,
          "previous": 0.7673,
          "change": -0.0009,
          "percentChange": -0.12
        }
      },
      "smile": {
        "logMoneyness": [
          -0.3,
          -0.285,
          -0.27,
          -0.255,
          -0.24,
          -0.225,
          -0.21,
          -0.195,
          -0.18,
          -0.165,
          -0.15,
          -0.135,
          -0.12,
          -0.105,
          -0.09,
          -0.075,
          -0.06,
          -0.045,
          -0.03,
          -0.015,
          0.0,
          0.015,
          0.03,
          0.045,
          0.06,
          0.075,
          0.09,
          0.105,
          0.12,
          0.135,
          0.15,
          0.165,
          0.18,
          0.195,
          0.21,
          0.225,
          0.24,
          0.255,
          0.27,
          0.285,
          0.3
        ],
        "current": [
          51.9565,
          51.1804,
          50.411,
          49.6489,
          48.8949,
          48.1501,
          47.4153,
          46.6914,
          45.9797,
          45.2811,
          44.5968,
          43.9281,
          43.2762,
          42.6425,
          42.0282,
          41.4348,
          40.8637,
          40.3165,
          39.7945,
          39.2993,
          38.8323,
          38.3951,
          37.989,
          37.6155,
          37.2759,
          36.9715,
          36.7035,
          36.4728,
          36.2803,
          36.127,
          36.0133,
          35.9398,
          35.9066,
          35.9139,
          35.9617,
          36.0495,
          36.177,
          36.3436,
          36.5484,
          36.7905,
          37.069
        ],
        "previous": [
          52.4024,
          51.6124,
          50.8288,
          50.0525,
          49.2843,
          48.5251,
          47.7757,
          47.0374,
          46.311,
          45.5977,
          44.8987,
          44.2152,
          43.5484,
          42.8998,
          42.2707,
          41.6624,
          41.0766,
          40.5146,
          39.978,
          39.4683,
          38.987,
          38.5356,
          38.1157,
          37.7286,
          37.3757,
          37.0584,
          36.7778,
          36.5351,
          36.3311,
          36.1667,
          36.0426,
          35.9593,
          35.917,
          35.9158,
          35.9558,
          36.0366,
          36.1578,
          36.3188,
          36.5188,
          36.7568,
          37.0319
        ],
        "change": [
          -0.4459,
          -0.432,
          -0.4178,
          -0.4036,
          -0.3894,
          -0.375,
          -0.3604,
          -0.346,
          -0.3313,
          -0.3166,
          -0.3019,
          -0.2871,
          -0.2722,
          -0.2573,
          -0.2425,
          -0.2276,
          -0.2129,
          -0.1981,
          -0.1835,
          -0.169,
          -0.1547,
          -0.1405,
          -0.1267,
          -0.1131,
          -0.0998,
          -0.0869,
          -0.0743,
          -0.0623,
          -0.0508,
          -0.0397,
          -0.0293,
          -0.0195,
          -0.0104,
          -0.0019,
          0.0059,
          0.0129,
          0.0192,
          0.0248,
          0.0296,
          0.0337,
          0.0371
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.162,
        "rotation": 0.273,
        "wingChange": -0.011,
        "rmsChange": 0.229
      }
    },
    {
      "label": "25SEP26",
      "expiry": 1790323200000,
      "tauYears": 0.35707953,
      "daysToExpiry": 130.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 78055.68,
        "previous": 78759.05,
        "change": -703.37,
        "percentChange": -0.89
      },
      "atmIv": {
        "current": 40.03,
        "previous": 40.25,
        "change": -0.22,
        "percentChange": -0.55
      },
      "rr25": {
        "current": -5.96,
        "previous": -5.96,
        "change": 0.0,
        "percentChange": 0.0
      },
      "bf25": {
        "current": 2.28,
        "previous": 2.52,
        "change": -0.24,
        "percentChange": -9.52
      },
      "svi": {
        "a": {
          "current": -0.1125,
          "previous": -0.1652,
          "change": 0.0527,
          "percentChange": 31.89
        },
        "b": {
          "current": 0.2094,
          "previous": 0.2432,
          "change": -0.0338,
          "percentChange": -13.89
        },
        "rho": {
          "current": 0.0113,
          "previous": -0.1125,
          "change": 0.1238,
          "percentChange": 110.02
        },
        "m": {
          "current": 0.2428,
          "previous": 0.1221,
          "change": 0.1207,
          "percentChange": 98.84
        },
        "sigma": {
          "current": 0.7842,
          "previous": 0.9038,
          "change": -0.1195,
          "percentChange": -13.22
        }
      },
      "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": [
          49.0524,
          48.5545,
          48.0614,
          47.5736,
          47.0915,
          46.6156,
          46.1463,
          45.6842,
          45.2297,
          44.7834,
          44.3458,
          43.9176,
          43.4993,
          43.0916,
          42.695,
          42.3102,
          41.9378,
          41.5785,
          41.233,
          40.9019,
          40.5858,
          40.2855,
          40.0015,
          39.7346,
          39.4853,
          39.2541,
          39.0418,
          38.8488,
          38.6756,
          38.5227,
          38.3904,
          38.2793,
          38.1895,
          38.1214,
          38.0751,
          38.0509,
          38.0487,
          38.0686,
          38.1106,
          38.1745,
          38.2602
        ],
        "previous": [
          49.7132,
          49.1703,
          48.6345,
          48.1063,
          47.5861,
          47.0744,
          46.5718,
          46.0788,
          45.596,
          45.1239,
          44.6631,
          44.2142,
          43.7779,
          43.3546,
          42.945,
          42.5498,
          42.1694,
          41.8045,
          41.4558,
          41.1236,
          40.8087,
          40.5116,
          40.2328,
          39.9727,
          39.7319,
          39.5107,
          39.3097,
          39.129,
          38.9691,
          38.8302,
          38.7126,
          38.6163,
          38.5416,
          38.4884,
          38.4568,
          38.4468,
          38.4583,
          38.491,
          38.5449,
          38.6197,
          38.715
        ],
        "change": [
          -0.6608,
          -0.6158,
          -0.5731,
          -0.5327,
          -0.4946,
          -0.4588,
          -0.4255,
          -0.3946,
          -0.3663,
          -0.3405,
          -0.3173,
          -0.2966,
          -0.2786,
          -0.263,
          -0.25,
          -0.2396,
          -0.2316,
          -0.226,
          -0.2228,
          -0.2217,
          -0.2229,
          -0.2261,
          -0.2313,
          -0.2381,
          -0.2466,
          -0.2566,
          -0.2679,
          -0.2802,
          -0.2935,
          -0.3075,
          -0.3222,
          -0.337,
          -0.3521,
          -0.367,
          -0.3817,
          -0.3959,
          -0.4096,
          -0.4224,
          -0.4343,
          -0.4452,
          -0.4548
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.287,
        "rotation": -0.005,
        "wingChange": -0.097,
        "rmsChange": 0.367
      }
    },
    {
      "label": "25DEC26",
      "expiry": 1798185600000,
      "tauYears": 0.6063946,
      "daysToExpiry": 221.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 78755.63,
        "previous": 79464.2,
        "change": -708.57,
        "percentChange": -0.89
      },
      "atmIv": {
        "current": 42.79,
        "previous": 42.98,
        "change": -0.19,
        "percentChange": -0.44
      },
      "rr25": {
        "current": -5.43,
        "previous": -5.46,
        "change": 0.03,
        "percentChange": 0.55
      },
      "bf25": {
        "current": 2.45,
        "previous": 2.54,
        "change": -0.09,
        "percentChange": -3.54
      },
      "svi": {
        "a": {
          "current": -0.1489,
          "previous": -0.2004,
          "change": 0.0516,
          "percentChange": 25.73
        },
        "b": {
          "current": 0.2569,
          "previous": 0.2861,
          "change": -0.0293,
          "percentChange": -10.23
        },
        "rho": {
          "current": -0.0812,
          "previous": -0.0782,
          "change": -0.003,
          "percentChange": -3.81
        },
        "m": {
          "current": 0.2196,
          "previous": 0.2109,
          "change": 0.0087,
          "percentChange": 4.13
        },
        "sigma": {
          "current": 0.9851,
          "previous": 1.0707,
          "change": -0.0856,
          "percentChange": -8.0
        }
      },
      "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": [
          49.4068,
          49.0567,
          48.7112,
          48.3704,
          48.0345,
          47.7038,
          47.3785,
          47.0589,
          46.7452,
          46.4377,
          46.1366,
          45.8422,
          45.5548,
          45.2745,
          45.0017,
          44.7367,
          44.4796,
          44.2308,
          43.9904,
          43.7588,
          43.5362,
          43.3229,
          43.119,
          42.9248,
          42.7406,
          42.5665,
          42.4027,
          42.2494,
          42.1069,
          41.9752,
          41.8545,
          41.745,
          41.6468,
          41.5599,
          41.4845,
          41.4207,
          41.3684,
          41.3278,
          41.2989,
          41.2815,
          41.2759
        ],
        "previous": [
          49.6916,
          49.3333,
          48.9798,
          48.6315,
          48.2886,
          47.9512,
          47.6197,
          47.2943,
          46.9752,
          46.6628,
          46.3571,
          46.0585,
          45.7673,
          45.4837,
          45.2079,
          44.9403,
          44.681,
          44.4303,
          44.1885,
          43.9557,
          43.7323,
          43.5185,
          43.3144,
          43.1204,
          42.9365,
          42.7631,
          42.6003,
          42.4483,
          42.3072,
          42.1773,
          42.0586,
          41.9512,
          41.8553,
          41.7711,
          41.6984,
          41.6376,
          41.5884,
          41.5511,
          41.5256,
          41.512,
          41.5101
        ],
        "change": [
          -0.2848,
          -0.2766,
          -0.2686,
          -0.2611,
          -0.2541,
          -0.2474,
          -0.2412,
          -0.2354,
          -0.23,
          -0.2251,
          -0.2205,
          -0.2163,
          -0.2125,
          -0.2092,
          -0.2062,
          -0.2036,
          -0.2014,
          -0.1995,
          -0.1981,
          -0.1969,
          -0.1961,
          -0.1956,
          -0.1954,
          -0.1956,
          -0.1959,
          -0.1966,
          -0.1976,
          -0.1989,
          -0.2003,
          -0.2021,
          -0.2041,
          -0.2062,
          -0.2085,
          -0.2112,
          -0.2139,
          -0.2169,
          -0.22,
          -0.2233,
          -0.2267,
          -0.2305,
          -0.2342
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.207,
        "rotation": 0.016,
        "wingChange": -0.016,
        "rmsChange": 0.22
      }
    },
    {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "tauYears": 0.85570966,
      "daysToExpiry": 312.334,
      "expiryClassification": "standard",
      "rankingEligible": true,
      "forward": {
        "current": 79415.4,
        "previous": 80127.2,
        "change": -711.8,
        "percentChange": -0.89
      },
      "atmIv": {
        "current": 43.83,
        "previous": 43.97,
        "change": -0.14,
        "percentChange": -0.32
      },
      "rr25": {
        "current": -4.91,
        "previous": -4.93,
        "change": 0.02,
        "percentChange": 0.41
      },
      "bf25": {
        "current": 2.35,
        "previous": 2.39,
        "change": -0.04,
        "percentChange": -1.67
      },
      "svi": {
        "a": {
          "current": -0.1586,
          "previous": -0.1881,
          "change": 0.0295,
          "percentChange": 15.67
        },
        "b": {
          "current": 0.2786,
          "previous": 0.2948,
          "change": -0.0163,
          "percentChange": -5.52
        },
        "rho": {
          "current": -0.132,
          "previous": -0.1051,
          "change": -0.0269,
          "percentChange": -25.62
        },
        "m": {
          "current": 0.2104,
          "previous": 0.2343,
          "change": -0.0239,
          "percentChange": -10.18
        },
        "sigma": {
          "current": 1.1354,
          "previous": 1.1751,
          "change": -0.0397,
          "percentChange": -3.38
        }
      },
      "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": [
          49.1769,
          48.9096,
          48.6459,
          48.386,
          48.1299,
          47.878,
          47.6302,
          47.3867,
          47.1477,
          46.9133,
          46.6836,
          46.4588,
          46.239,
          46.0243,
          45.815,
          45.6111,
          45.4127,
          45.2201,
          45.0332,
          44.8523,
          44.6776,
          44.509,
          44.3467,
          44.1908,
          44.0415,
          43.8989,
          43.763,
          43.634,
          43.5118,
          43.3967,
          43.2887,
          43.1879,
          43.0943,
          43.008,
          42.929,
          42.8574,
          42.7933,
          42.7365,
          42.6872,
          42.6455,
          42.6111
        ],
        "previous": [
          49.3502,
          49.0811,
          48.8157,
          48.5541,
          48.2964,
          48.0428,
          47.7934,
          47.5484,
          47.3078,
          47.0719,
          46.8407,
          46.6145,
          46.3933,
          46.1773,
          45.9666,
          45.7614,
          45.5618,
          45.368,
          45.18,
          44.998,
          44.8221,
          44.6525,
          44.4893,
          44.3325,
          44.1824,
          44.039,
          43.9024,
          43.7727,
          43.65,
          43.5344,
          43.426,
          43.3249,
          43.2311,
          43.1447,
          43.0657,
          42.9943,
          42.9304,
          42.874,
          42.8253,
          42.7841,
          42.7506
        ],
        "change": [
          -0.1733,
          -0.1715,
          -0.1698,
          -0.1681,
          -0.1665,
          -0.1648,
          -0.1632,
          -0.1617,
          -0.1601,
          -0.1586,
          -0.1571,
          -0.1557,
          -0.1543,
          -0.153,
          -0.1516,
          -0.1503,
          -0.1491,
          -0.1479,
          -0.1468,
          -0.1457,
          -0.1445,
          -0.1435,
          -0.1426,
          -0.1417,
          -0.1409,
          -0.1401,
          -0.1394,
          -0.1387,
          -0.1382,
          -0.1377,
          -0.1373,
          -0.137,
          -0.1368,
          -0.1367,
          -0.1367,
          -0.1369,
          -0.1371,
          -0.1375,
          -0.1381,
          -0.1386,
          -0.1395
        ],
        "classification": [
          "parallel shift lower"
        ],
        "parallelShift": -0.146,
        "rotation": 0.02,
        "wingChange": -0.003,
        "rmsChange": 0.149
      }
    }
  ],
  "events": [
    {
      "type": "rotation",
      "title": "Largest eligible smile rotation",
      "label": "29MAY26",
      "value": 3.573,
      "score": 3.573,
      "unit": "volatility points"
    },
    {
      "type": "atmIv",
      "title": "Largest standard-tenor ATM IV move",
      "label": "1W",
      "value": 2.54,
      "score": 2.54,
      "unit": "volatility points"
    },
    {
      "type": "rr25",
      "title": "Largest standard-tenor RR25 move",
      "label": "2W",
      "value": 1.18,
      "score": 1.18,
      "unit": "volatility points"
    },
    {
      "type": "sigma",
      "title": "Largest eligible SVI sigma move",
      "label": "29MAY26",
      "value": 0.2866,
      "score": 0.2866,
      "unit": "parameter units"
    },
    {
      "type": "bf25",
      "title": "Largest standard-tenor BF25 move",
      "label": "1M",
      "value": -0.21,
      "score": 0.21,
      "unit": "volatility points"
    },
    {
      "type": "rho",
      "title": "Largest eligible SVI rho move",
      "label": "22MAY26",
      "value": -0.1391,
      "score": 0.1391,
      "unit": "parameter units"
    }
  ],
  "expiryEffects": [
    {
      "label": "18MAY26",
      "daysToExpiry": 0.334,
      "metric": "Smile rotation",
      "value": 16.525,
      "unit": "volatility points",
      "context": "Excluded from headline rankings because the contract has fewer than the configured full days to expiry."
    },
    {
      "label": "19MAY26",
      "daysToExpiry": 1.334,
      "metric": "ATM IV change",
      "value": 8.41,
      "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": 287.11370715,
      "metric": "vega",
      "availability": "available"
    },
    "highestGamma": {
      "label": "18MAY26",
      "expiry": 1779091200000,
      "value": 0.000400662651,
      "metric": "gamma",
      "availability": "available"
    },
    "highestThetaDecay": {
      "label": "18MAY26",
      "expiry": 1779091200000,
      "value": -594.57720908,
      "metric": "theta",
      "availability": "available"
    },
    "highestVanna": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": 0.00180767,
      "metric": "vanna",
      "availability": "available"
    },
    "highestVolga": {
      "label": "26MAR27",
      "expiry": 1806048000000,
      "value": -26.92104058,
      "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": "18MAY26",
        "values": [
          79.7896,
          75.5399,
          71.3017,
          67.0755,
          62.8619,
          58.6618,
          54.4768,
          50.3091,
          46.162,
          42.0405,
          37.9524,
          33.9092,
          29.9287,
          26.0386,
          22.2827,
          18.7319,
          15.5024,
          12.7837,
          10.8703,
          10.1588,
          11.0148,
          13.4896,
          17.1889,
          21.551,
          26.1732,
          30.8682,
          35.5753,
          40.2844,
          45.0001,
          49.7292,
          54.4776,
          59.2488,
          64.0456,
          68.8693,
          73.7205,
          78.5992,
          83.5049,
          88.4372,
          93.395,
          98.3773,
          103.383
        ]
      },
      {
        "label": "19MAY26",
        "values": [
          4.3627,
          4.054,
          3.8004,
          3.6025,
          3.4611,
          3.3766,
          3.3495,
          3.3802,
          3.469,
          3.6166,
          3.8234,
          4.0902,
          4.4178,
          4.8065,
          5.256,
          5.7633,
          6.32,
          6.9079,
          7.4916,
          8.0127,
          8.3925,
          8.5528,
          8.4558,
          8.1313,
          7.6626,
          7.1452,
          6.6539,
          6.2347,
          5.9099,
          5.6868,
          5.5652,
          5.5408,
          5.6082,
          5.7619,
          5.9965,
          6.3067,
          6.6881,
          7.1367,
          7.6485,
          8.2201,
          8.8481
        ]
      },
      {
        "label": "20MAY26",
        "values": [
          7.7766,
          7.2842,
          6.8258,
          6.403,
          6.0174,
          5.6703,
          5.3634,
          5.0983,
          4.8769,
          4.7012,
          4.5731,
          4.4952,
          4.4704,
          4.5014,
          4.5914,
          4.7425,
          4.9555,
          5.2275,
          5.5491,
          5.9016,
          6.2557,
          6.575,
          6.8262,
          6.992,
          7.0776,
          7.1059,
          7.1071,
          7.1082,
          7.1296,
          7.1841,
          7.2789,
          7.4171,
          7.5995,
          7.8257,
          8.0943,
          8.4036,
          8.7517,
          9.1366,
          9.5566,
          10.0094,
          10.4934
        ]
      },
      {
        "label": "22MAY26",
        "values": [
          8.4797,
          7.9151,
          7.3812,
          6.8793,
          6.4107,
          5.9766,
          5.5784,
          5.2168,
          4.893,
          4.6079,
          4.3616,
          4.1546,
          3.9868,
          3.8574,
          3.7647,
          3.7063,
          3.6779,
          3.6734,
          3.684,
          3.6984,
          3.7034,
          3.6847,
          3.6308,
          3.5347,
          3.3966,
          3.2228,
          3.0245,
          2.8138,
          2.6019,
          2.3978,
          2.2079,
          2.0365,
          1.8861,
          1.758,
          1.6532,
          1.5715,
          1.5131,
          1.4776,
          1.4645,
          1.4733,
          1.5037
        ]
      },
      {
        "label": "29MAY26",
        "values": [
          1.042,
          0.8283,
          0.6348,
          0.4622,
          0.3119,
          0.1851,
          0.083,
          0.0067,
          -0.0425,
          -0.0636,
          -0.0553,
          -0.017,
          0.0523,
          0.1529,
          0.2852,
          0.4486,
          0.642,
          0.8634,
          1.1095,
          1.3759,
          1.6564,
          1.9436,
          2.2286,
          2.5022,
          2.7549,
          2.9783,
          3.166,
          3.3138,
          3.4205,
          3.4875,
          3.5181,
          3.5171,
          3.4901,
          3.4427,
          3.3807,
          3.3089,
          3.2321,
          3.1541,
          3.078,
          3.0068,
          2.9424
        ]
      },
      {
        "label": "5JUN26",
        "values": [
          -1.5807,
          -1.4838,
          -1.3847,
          -1.2833,
          -1.1795,
          -1.0735,
          -0.965,
          -0.8542,
          -0.7409,
          -0.6253,
          -0.5074,
          -0.3871,
          -0.2647,
          -0.1402,
          -0.0139,
          0.1141,
          0.2431,
          0.373,
          0.5027,
          0.6316,
          0.7586,
          0.8826,
          1.0022,
          1.1158,
          1.2221,
          1.3197,
          1.4075,
          1.4845,
          1.5504,
          1.6052,
          1.6494,
          1.6839,
          1.7098,
          1.7286,
          1.7418,
          1.7507,
          1.7567,
          1.7611,
          1.765,
          1.7693,
          1.7747
        ]
      },
      {
        "label": "26JUN26",
        "values": [
          -0.5274,
          -0.4375,
          -0.351,
          -0.268,
          -0.1888,
          -0.1135,
          -0.0424,
          0.0243,
          0.0865,
          0.1439,
          0.1964,
          0.2436,
          0.2854,
          0.3218,
          0.3525,
          0.3775,
          0.3966,
          0.4097,
          0.4171,
          0.4187,
          0.4145,
          0.4051,
          0.3904,
          0.3711,
          0.3475,
          0.3202,
          0.2899,
          0.2572,
          0.223,
          0.188,
          0.1529,
          0.1185,
          0.0857,
          0.055,
          0.0269,
          0.0021,
          -0.0192,
          -0.0366,
          -0.05,
          -0.0593,
          -0.0644
        ]
      },
      {
        "label": "31JUL26",
        "values": [
          -0.4459,
          -0.432,
          -0.4178,
          -0.4036,
          -0.3894,
          -0.375,
          -0.3604,
          -0.346,
          -0.3313,
          -0.3166,
          -0.3019,
          -0.2871,
          -0.2722,
          -0.2573,
          -0.2425,
          -0.2276,
          -0.2129,
          -0.1981,
          -0.1835,
          -0.169,
          -0.1547,
          -0.1405,
          -0.1267,
          -0.1131,
          -0.0998,
          -0.0869,
          -0.0743,
          -0.0623,
          -0.0508,
          -0.0397,
          -0.0293,
          -0.0195,
          -0.0104,
          -0.0019,
          0.0059,
          0.0129,
          0.0192,
          0.0248,
          0.0296,
          0.0337,
          0.0371
        ]
      },
      {
        "label": "25SEP26",
        "values": [
          -0.6608,
          -0.6158,
          -0.5731,
          -0.5327,
          -0.4946,
          -0.4588,
          -0.4255,
          -0.3946,
          -0.3663,
          -0.3405,
          -0.3173,
          -0.2966,
          -0.2786,
          -0.263,
          -0.25,
          -0.2396,
          -0.2316,
          -0.226,
          -0.2228,
          -0.2217,
          -0.2229,
          -0.2261,
          -0.2313,
          -0.2381,
          -0.2466,
          -0.2566,
          -0.2679,
          -0.2802,
          -0.2935,
          -0.3075,
          -0.3222,
          -0.337,
          -0.3521,
          -0.367,
          -0.3817,
          -0.3959,
          -0.4096,
          -0.4224,
          -0.4343,
          -0.4452,
          -0.4548
        ]
      },
      {
        "label": "25DEC26",
        "values": [
          -0.2848,
          -0.2766,
          -0.2686,
          -0.2611,
          -0.2541,
          -0.2474,
          -0.2412,
          -0.2354,
          -0.23,
          -0.2251,
          -0.2205,
          -0.2163,
          -0.2125,
          -0.2092,
          -0.2062,
          -0.2036,
          -0.2014,
          -0.1995,
          -0.1981,
          -0.1969,
          -0.1961,
          -0.1956,
          -0.1954,
          -0.1956,
          -0.1959,
          -0.1966,
          -0.1976,
          -0.1989,
          -0.2003,
          -0.2021,
          -0.2041,
          -0.2062,
          -0.2085,
          -0.2112,
          -0.2139,
          -0.2169,
          -0.22,
          -0.2233,
          -0.2267,
          -0.2305,
          -0.2342
        ]
      },
      {
        "label": "26MAR27",
        "values": [
          -0.1733,
          -0.1715,
          -0.1698,
          -0.1681,
          -0.1665,
          -0.1648,
          -0.1632,
          -0.1617,
          -0.1601,
          -0.1586,
          -0.1571,
          -0.1557,
          -0.1543,
          -0.153,
          -0.1516,
          -0.1503,
          -0.1491,
          -0.1479,
          -0.1468,
          -0.1457,
          -0.1445,
          -0.1435,
          -0.1426,
          -0.1417,
          -0.1409,
          -0.1401,
          -0.1394,
          -0.1387,
          -0.1382,
          -0.1377,
          -0.1373,
          -0.137,
          -0.1368,
          -0.1367,
          -0.1367,
          -0.1369,
          -0.1371,
          -0.1375,
          -0.1381,
          -0.1386,
          -0.1395
        ]
      }
    ]
  }
}
