{
  "schema_version": "fwdvar_diagnostics_v4",
  "issues": [
    {
      "code": "rejected",
      "scope": "expiry",
      "severity": "INFO",
      "expiry_dt": "2026-09-29",
      "interval_from": null,
      "interval_to": null,
      "strike": null,
      "target_key": "2026-09-29",
      "message_short": "Rejected: missing_quotes",
      "message_long": "Expiry rejected: missing_quotes",
      "metrics": {
        "reject_reason": "missing_quotes"
      }
    },
    {
      "code": "rejected",
      "scope": "expiry",
      "severity": "INFO",
      "expiry_dt": "2027-03-30",
      "interval_from": null,
      "interval_to": null,
      "strike": null,
      "target_key": "2027-03-30",
      "message_short": "Rejected: insufficient_strikes",
      "message_long": "Expiry rejected: insufficient_strikes",
      "metrics": {
        "reject_reason": "insufficient_strikes"
      }
    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-04-21",
      "interval_to": "2026-04-28",
      "strike": null,
      "target_key": "04-21\u219204-28",
      "message_short": "Elevated fwd vol (35.4%)",
      "message_long": "Forward volatility: 35.4% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.3543672482162053,
        "threshold": 0.3
      }
    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-04-28",
      "interval_to": "2026-05-05",
      "strike": null,
      "target_key": "04-28\u219205-05",
      "message_short": "Elevated fwd vol (33.3%)",
      "message_long": "Forward volatility: 33.3% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.33285063947291466,
        "threshold": 0.3
      }
    },
    {
      "code": "elevated_fwdvol",
      "scope": "interval",
      "severity": "WARN",
      "expiry_dt": null,
      "interval_from": "2026-05-05",
      "interval_to": "2026-05-12",
      "strike": null,
      "target_key": "05-05\u219205-12",
      "message_short": "Elevated fwd vol (32.6%)",
      "message_long": "Forward volatility: 32.6% (threshold: 30%)",
      "metrics": {
        "fwd_vol": 0.3255677813059356,
        "threshold": 0.3
      }
    }
  ],
  "summary": {
    "total": 5,
    "fail_count": 0,
    "warn_count": 3,
    "info_count": 2
  },
  "derived": {
    "structure_summary": {
      "iv_7d": {
        "pct": 38.5923370955193,
        "pct_cal": 21.63574503278573,
        "actual_dte": 8,
        "expiry_date": "2026-04-21",
        "tau_eff": 0.0069736083485701225,
        "tau_cal": 0.022187889913333078,
        "tau_ratio": 3.181694297168626
      },
      "iv_30d": {
        "pct": 35.21809977865196,
        "pct_cal": 19.587896800298733,
        "actual_dte": 29,
        "expiry_date": "2026-05-12",
        "tau_eff": 0.02464950057905062,
        "tau_cal": 0.07968275644310721,
        "tau_ratio": 3.2326316789894247
      },
      "iv_90d": {
        "pct": 30.845902030262728,
        "pct_cal": 17.158529326260503,
        "actual_dte": 78,
        "expiry_date": "2026-06-30",
        "tau_eff": 0.06616814043595755,
        "tau_cal": 0.21383744501258015,
        "tau_ratio": 3.23172819431956
      },
      "front_slope_pct": -3.3742373168673345,
      "back_slope_pct": -4.372197748389234,
      "max_fwd_vol_pct": 35.43672482162053,
      "max_fwd_vol_interval": {
        "from": "2026-04-21",
        "to": "2026-04-28"
      },
      "max_fwd_vol_dte_range": {
        "start_dte": 8,
        "end_dte": 15
      },
      "neg_interval_count": 0,
      "clock_primary": "variance_time",
      "clock_secondary": "calendar",
      "vt_vintage": "202603",
      "beta_on": 0.12931315994459922,
      "beta_we": 0.19024823173932068,
      "quote_context_dt": "2026-04-13T13:00:03.445271+05:30",
      "effective_quote_policy": "weighted_mid",
      "tau_mode_math": "variance_time",
      "rr_25d": null,
      "fly_25d": null,
      "put_iv_25d": null,
      "call_iv_25d": null,
      "rr_fly_diagnostics": null
    },
    "interval_leaderboard": {
      "highest": [
        {
          "from": "2026-04-21",
          "to": "2026-04-28",
          "start_dte": 8,
          "end_dte": 15,
          "forward_vol": 0.3543672482162053,
          "forward_variance": 0.12557614660832564
        },
        {
          "from": "2026-04-28",
          "to": "2026-05-05",
          "start_dte": 15,
          "end_dte": 22,
          "forward_vol": 0.33285063947291466,
          "forward_variance": 0.11078954819752822
        },
        {
          "from": "2026-05-05",
          "to": "2026-05-12",
          "start_dte": 22,
          "end_dte": 29,
          "forward_vol": 0.3255677813059356,
          "forward_variance": 0.10599438022446951
        },
        {
          "from": "2026-05-12",
          "to": "2026-05-26",
          "start_dte": 29,
          "end_dte": 43,
          "forward_vol": 0.2998178091849845,
          "forward_variance": 0.08989071870448379
        },
        {
          "from": "2026-05-26",
          "to": "2026-06-30",
          "start_dte": 43,
          "end_dte": 78,
          "forward_vol": 0.2703969027537554,
          "forward_variance": 0.07311448501882385
        }
      ],
      "lowest": [
        {
          "from": "2026-06-30",
          "to": "2026-12-29",
          "start_dte": 78,
          "end_dte": 260,
          "forward_vol": 0.22627955509633368,
          "forward_variance": 0.05120243705459471
        },
        {
          "from": "2026-05-26",
          "to": "2026-06-30",
          "start_dte": 43,
          "end_dte": 78,
          "forward_vol": 0.2703969027537554,
          "forward_variance": 0.07311448501882385
        },
        {
          "from": "2026-05-12",
          "to": "2026-05-26",
          "start_dte": 29,
          "end_dte": 43,
          "forward_vol": 0.2998178091849845,
          "forward_variance": 0.08989071870448379
        },
        {
          "from": "2026-05-05",
          "to": "2026-05-12",
          "start_dte": 22,
          "end_dte": 29,
          "forward_vol": 0.3255677813059356,
          "forward_variance": 0.10599438022446951
        },
        {
          "from": "2026-04-28",
          "to": "2026-05-05",
          "start_dte": 15,
          "end_dte": 22,
          "forward_vol": 0.33285063947291466,
          "forward_variance": 0.11078954819752822
        }
      ],
      "neg_intervals": []
    },
    "forward_volatility_matrix": {
      "schema_version": "fwdvol_matrix_v2",
      "status": "available",
      "expiry_filter_policy_version": "usable_expiries_v1",
      "expiry_dates": [
        "2026-04-21",
        "2026-04-28",
        "2026-05-05",
        "2026-05-12",
        "2026-05-26",
        "2026-06-30",
        "2026-12-29"
      ],
      "dte_days": [
        8,
        15,
        22,
        29,
        43,
        78,
        260
      ],
      "matrix_fwdvol_pct": [
        [
          null,
          35.43672482162053,
          34.41969855917863,
          33.79432156652558,
          32.30034234979289,
          29.801018726621674,
          24.816250231672065
        ],
        [
          null,
          null,
          33.28506394729146,
          32.90871246158053,
          31.451273239195586,
          29.091184206885057,
          24.439465171176792
        ],
        [
          null,
          null,
          null,
          32.556778130593564,
          30.86399291695946,
          28.557940523586854,
          24.149833617000528
        ],
        [
          null,
          null,
          null,
          null,
          29.98178091849845,
          27.928180627682426,
          23.844724765466076
        ],
        [
          null,
          null,
          null,
          null,
          null,
          27.039690275375538,
          23.386938353305347
        ],
        [
          null,
          null,
          null,
          null,
          null,
          null,
          22.627955509633367
        ],
        [
          null,
          null,
          null,
          null,
          null,
          null,
          null
        ]
      ],
      "neg_mask": [
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ],
        [
          false,
          false,
          false,
          false,
          false,
          false,
          false
        ]
      ],
      "clip": {
        "method": "percentile",
        "p_lo": 5,
        "p_hi": 95,
        "vmin": 23.386938353305347,
        "vmax": 34.41969855917863
      },
      "usable_count": 7,
      "excluded": []
    },
    "expiry_quality_summary": {
      "schema_version": "expiry_quality_summary_v1",
      "filter_policy_version": "usable_expiries_v1",
      "total_count": 9,
      "usable_count": 7,
      "excluded": [
        {
          "expiry_date": "2026-09-29",
          "dte_days": 169,
          "reject_reason": "missing_quotes",
          "accept_tier": null,
          "why": "missing_quotes"
        },
        {
          "expiry_date": "2027-03-30",
          "dte_days": 351,
          "reject_reason": "insufficient_strikes",
          "accept_tier": null,
          "why": "insufficient_strikes"
        }
      ]
    },
    "build_metadata": {
      "git_commit": "23e9578c",
      "build_timestamp": "2026-04-13T07:30:08.857575+00:00",
      "python_version": "3.13"
    },
    "request_echo": {
      "event_windows_requested": false,
      "sliding_windows_requested": false,
      "diagnostics_level": "lite",
      "tau_mode": "variance_time",
      "event_windows_exported": false,
      "event_windows_count": 0,
      "sliding_windows_exported": false,
      "ui_presets_exported": true,
      "ui_presets_events_count": 0,
      "ui_presets_missing_reason": null,
      "required_iv_tenors": []
    },
    "ui_limits": {
      "max_horizon_days": 56,
      "max_horizon_label": "8w_liquid",
      "min_horizon_days": 0,
      "tz": "Asia/Kolkata",
      "notes": "UI clamps horizon; avoid LEAPS/illiquid expiries beyond 8 weeks"
    },
    "ui_capabilities": {
      "schema_version": "ui_capabilities_v1",
      "generated_at_utc": "2026-04-13T07:30:08.858000+00:00",
      "source": "volstrats.analytics.ui_capabilities.build_ui_capabilities",
      "filter_policy": {
        "name": "UI_GRADE",
        "version": "usable_expiries_v1"
      },
      "missing_reason": null,
      "features": {
        "forward_matrix_json": false,
        "quote_cards_html": false,
        "event_window_tool": false,
        "sliding_windows": false,
        "smile_density_plots": false,
        "chain_snapshots": false,
        "carry_data": true
      },
      "counts": {
        "usable_expiries": 7,
        "excluded_expiries": 2,
        "neg_cells": 0,
        "issues_fail": 0,
        "issues_warn": 3
      }
    },
    "ui_presets": {
      "schema_version": "ui_presets_v1",
      "generated_at_utc": "2026-04-13T07:30:08.860666+00:00",
      "asof_iso": "2026-04-13T13:00:03.445271+05:30",
      "asof_source": "structure_summary.quote_context_dt",
      "horizon_days": 56,
      "tz": "Asia/Kolkata",
      "source": "market_calendar.list_upcoming_events",
      "id_namespace": "market_calendar",
      "id_format": "CATEGORY_YYYYMM",
      "events": []
    }
  }
}