{
  "week-2026-11-06": {
    "label": "Latest closed calendar week",
    "start": "2026-11-02",
    "end": "2026-11-06",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -1281.7,
    "first_observation": "2026-11-02",
    "last_observation": "2026-11-06",
    "positive_days": 1,
    "negative_days": 4,
    "largest_inflow": {
      "date": "2026-11-04",
      "value_m": 74.6
    },
    "largest_outflow": {
      "date": "2026-11-05",
      "value_m": -430.2
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -1209.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 93.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 16.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -19.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 4.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -32.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -23.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 3.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -61.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -52.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 79.8,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $1,281.7M in net outflows over 5 recorded sessions; 1 positive, 4 negative and 0 flat. IBIT accounts for 79.8% of the sum of absolute fund-level net flows.",
    "notes": [],
    "previous": {
      "start": "2026-10-26",
      "end": "2026-10-30",
      "net_flow_m": -202.4,
      "trading_days": 5,
      "status": "available"
    },
    "change_m": -1079.3,
    "comparison_note": "Difference between reported period totals; session counts and coverage may differ. No percentage change is inferred.",
    "historical_baseline": {
      "periods": 11,
      "mean_net_flow_m": 478.9,
      "note": "Up to twelve prior calendar weeks with all weekdays represented; holiday weeks are excluded, not treated as zero."
    }
  },
  "week-2026-10-30": {
    "label": "Calendar week",
    "start": "2026-10-26",
    "end": "2026-10-30",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -202.4,
    "first_observation": "2026-10-26",
    "last_observation": "2026-10-30",
    "positive_days": 4,
    "negative_days": 1,
    "largest_inflow": {
      "date": "2026-10-27",
      "value_m": 176.0
    },
    "largest_outflow": {
      "date": "2026-10-30",
      "value_m": -643.2
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 176.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -166.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -15.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -129.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -3.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 4.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -53.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -15.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 31.3,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $202.4M in net outflows over 5 recorded sessions; 4 positive, 1 negative and 0 flat. IBIT accounts for 31.3% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-10-23": {
    "label": "Calendar week",
    "start": "2026-10-19",
    "end": "2026-10-23",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 301.2,
    "first_observation": "2026-10-19",
    "last_observation": "2026-10-23",
    "positive_days": 3,
    "negative_days": 2,
    "largest_inflow": {
      "date": "2026-10-19",
      "value_m": 526.7
    },
    "largest_outflow": {
      "date": "2026-10-22",
      "value_m": -635.6
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 565.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -116.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -18.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -99.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 7.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 6.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -51.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 8.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 64.7,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $301.2M in net inflows over 5 recorded sessions; 3 positive, 2 negative and 0 flat. IBIT accounts for 64.7% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-10-16": {
    "label": "Calendar week",
    "start": "2026-10-12",
    "end": "2026-10-16",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -228.4,
    "first_observation": "2026-10-12",
    "last_observation": "2026-10-16",
    "positive_days": 2,
    "negative_days": 3,
    "largest_inflow": {
      "date": "2026-10-13",
      "value_m": 175.7
    },
    "largest_outflow": {
      "date": "2026-10-14",
      "value_m": -261.4
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -165.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -60.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 2.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -4.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 6.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -7.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 67.2,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $228.4M in net outflows over 5 recorded sessions; 2 positive, 3 negative and 0 flat. IBIT accounts for 67.2% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-10-09": {
    "label": "Calendar week",
    "start": "2026-10-05",
    "end": "2026-10-09",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -678.9,
    "first_observation": "2026-10-05",
    "last_observation": "2026-10-09",
    "positive_days": 2,
    "negative_days": 3,
    "largest_inflow": {
      "date": "2026-10-06",
      "value_m": 118.8
    },
    "largest_outflow": {
      "date": "2026-10-07",
      "value_m": -484.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 1.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -380.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -45.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -207.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 4.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -1.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 7.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -47.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -11.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 53.9,
    "leading_fund": "FBTC",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $678.9M in net outflows over 5 recorded sessions; 2 positive, 3 negative and 0 flat. FBTC accounts for 53.9% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-10-02": {
    "label": "Calendar week",
    "start": "2026-09-28",
    "end": "2026-10-02",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 241.1,
    "first_observation": "2026-09-28",
    "last_observation": "2026-10-02",
    "positive_days": 4,
    "negative_days": 1,
    "largest_inflow": {
      "date": "2026-10-02",
      "value_m": 189.9
    },
    "largest_outflow": {
      "date": "2026-09-30",
      "value_m": -148.7
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 450.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -167.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -38.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 25.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -4.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -3.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 9.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -54.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 24.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 57.8,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $241.1M in net inflows over 5 recorded sessions; 4 positive, 1 negative and 0 flat. IBIT accounts for 57.8% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-09-25": {
    "label": "Calendar week",
    "start": "2026-09-21",
    "end": "2026-09-25",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 2385.8,
    "first_observation": "2026-09-21",
    "last_observation": "2026-09-25",
    "positive_days": 5,
    "negative_days": 0,
    "largest_inflow": {
      "date": "2026-09-21",
      "value_m": 999.0
    },
    "largest_outflow": null,
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 1157.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 701.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 13.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 294.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 4.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 2.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -4.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 203.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": 3.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 8.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 48.4,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $2,385.8M in net inflows over 5 recorded sessions; 5 positive, 0 negative and 0 flat. IBIT accounts for 48.4% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-09-18": {
    "label": "Calendar week",
    "start": "2026-09-14",
    "end": "2026-09-18",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 6.1,
    "first_observation": "2026-09-14",
    "last_observation": "2026-09-18",
    "positive_days": 3,
    "negative_days": 2,
    "largest_inflow": {
      "date": "2026-09-18",
      "value_m": 433.0
    },
    "largest_outflow": {
      "date": "2026-09-15",
      "value_m": -450.4
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 120.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 79.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -2.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -141.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 4.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -5.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 13.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -62.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 33.0,
    "leading_fund": "ARKB",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $6.1M in net inflows over 5 recorded sessions; 3 positive, 2 negative and 0 flat. ARKB accounts for 33.0% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-09-11": {
    "label": "Calendar week",
    "start": "2026-09-07",
    "end": "2026-09-11",
    "trading_days": 4,
    "observed_rows": 4,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -462.7,
    "first_observation": "2026-09-08",
    "last_observation": "2026-09-11",
    "positive_days": 0,
    "negative_days": 4,
    "largest_inflow": null,
    "largest_outflow": {
      "date": "2026-09-10",
      "value_m": -282.7
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -52.5,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -50.7,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 1.9,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -234.2,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -4.7,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -13.1,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 19.7,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -129.1,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 0.0,
        "reported_days": 4,
        "expected_days": 4,
        "complete": true
      }
    ],
    "concentration_pct": 46.3,
    "leading_fund": "ARKB",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $462.7M in net outflows over 4 recorded sessions; 0 positive, 4 negative and 0 flat. ARKB accounts for 46.3% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "week-2026-09-04": {
    "label": "Calendar week",
    "start": "2026-08-31",
    "end": "2026-09-04",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 986.7,
    "first_observation": "2026-08-31",
    "last_observation": "2026-09-04",
    "positive_days": 4,
    "negative_days": 1,
    "largest_inflow": {
      "date": "2026-09-03",
      "value_m": 730.8
    },
    "largest_outflow": {
      "date": "2026-09-01",
      "value_m": -236.5
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 691.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 94.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 41.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 137.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -33.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -5.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 18.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -48.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 88.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 59.7,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $986.7M in net inflows over 5 recorded sessions; 4 positive, 1 negative and 0 flat. IBIT accounts for 59.7% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-08-28": {
    "label": "Calendar week",
    "start": "2026-08-24",
    "end": "2026-08-28",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 924.5,
    "first_observation": "2026-08-24",
    "last_observation": "2026-08-28",
    "positive_days": 4,
    "negative_days": 1,
    "largest_inflow": {
      "date": "2026-08-24",
      "value_m": 337.6
    },
    "largest_outflow": {
      "date": "2026-08-28",
      "value_m": -201.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 938.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 62.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -16.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -85.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -4.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 25.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -77.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 81.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 72.7,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $924.5M in net inflows over 5 recorded sessions; 4 positive, 1 negative and 0 flat. IBIT accounts for 72.7% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-08-21": {
    "label": "Calendar week",
    "start": "2026-08-17",
    "end": "2026-08-21",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 1917.8,
    "first_observation": "2026-08-17",
    "last_observation": "2026-08-21",
    "positive_days": 5,
    "negative_days": 0,
    "largest_inflow": {
      "date": "2026-08-20",
      "value_m": 606.3
    },
    "largest_outflow": null,
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 1330.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 293.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 87.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 126.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 3.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 5.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -16.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 28.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": 21.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 36.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 68.2,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $1,917.8M in net inflows over 5 recorded sessions; 5 positive, 0 negative and 0 flat. IBIT accounts for 68.2% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-08-14": {
    "label": "Calendar week",
    "start": "2026-08-10",
    "end": "2026-08-14",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -385.2,
    "first_observation": "2026-08-10",
    "last_observation": "2026-08-14",
    "positive_days": 1,
    "negative_days": 4,
    "largest_inflow": {
      "date": "2026-08-11",
      "value_m": 7.8
    },
    "largest_outflow": {
      "date": "2026-08-10",
      "value_m": -144.6
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -78.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -153.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -31.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -70.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -7.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -23.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -10.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -4.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 7.1,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -88.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 76.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": 27.8,
    "leading_fund": "FBTC",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $385.2M in net outflows over 5 recorded sessions; 1 positive, 4 negative and 0 flat. FBTC accounts for 27.8% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "week-2026-08-07": {
    "label": "Calendar week",
    "start": "2026-08-03",
    "end": "2026-08-07",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": 865.3,
    "first_observation": "2026-08-03",
    "last_observation": "2026-08-07",
    "positive_days": 5,
    "negative_days": 0,
    "largest_inflow": {
      "date": "2026-08-05",
      "value_m": 244.4
    },
    "largest_outflow": null,
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 693.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 116.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 25.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 50.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -12.7,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 9.2,
        "reported_days": 4,
        "expected_days": 5,
        "complete": false
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -53.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 21.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": 7.5,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 6.8,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": null,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 1,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $865.3M in net inflows over 5 recorded sessions; 5 positive, 0 negative and 0 flat.",
    "notes": [
      "Fund attribution is incomplete or does not reconcile; no concentration percentage is inferred."
    ]
  },
  "week-2026-07-31": {
    "label": "Calendar week",
    "start": "2026-07-27",
    "end": "2026-07-31",
    "trading_days": 5,
    "observed_rows": 5,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -61.5,
    "first_observation": "2026-07-27",
    "last_observation": "2026-07-31",
    "positive_days": 2,
    "negative_days": 3,
    "largest_inflow": {
      "date": "2026-07-30",
      "value_m": 233.1
    },
    "largest_outflow": {
      "date": "2026-07-31",
      "value_m": -265.4
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 86.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -85.2,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 2.9,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -30.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 0.0,
        "reported_days": 4,
        "expected_days": 5,
        "complete": false
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 2.3,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 7.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -52.6,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 7.4,
        "reported_days": 5,
        "expected_days": 5,
        "complete": true
      }
    ],
    "concentration_pct": null,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 1,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $61.5M in net outflows over 5 recorded sessions; 2 positive, 3 negative and 0 flat.",
    "notes": [
      "Fund attribution is incomplete or does not reconcile; no concentration percentage is inferred."
    ]
  },
  "month-2026-10-31": {
    "label": "Calendar month",
    "start": "2026-10-01",
    "end": "2026-10-31",
    "trading_days": 22,
    "observed_rows": 22,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": -515.9,
    "first_observation": "2026-10-01",
    "last_observation": "2026-10-30",
    "positive_days": 13,
    "negative_days": 9,
    "largest_inflow": {
      "date": "2026-10-19",
      "value_m": 526.7
    },
    "largest_outflow": {
      "date": "2026-10-30",
      "value_m": -643.2
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 932.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -754.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -84.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -444.0,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -8.3,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 12.0,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -4.8,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -3.8,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 34.6,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -184.0,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -11.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      }
    ],
    "concentration_pct": 37.7,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $515.9M in net outflows over 22 recorded sessions; 13 positive, 9 negative and 0 flat. IBIT accounts for 37.7% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "month-2026-09-30": {
    "label": "Calendar month",
    "start": "2026-09-01",
    "end": "2026-09-30",
    "trading_days": 21,
    "observed_rows": 21,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": 2647.7,
    "first_observation": "2026-09-01",
    "last_observation": "2026-09-30",
    "positive_days": 13,
    "negative_days": 8,
    "largest_inflow": {
      "date": "2026-09-21",
      "value_m": 999.0
    },
    "largest_outflow": {
      "date": "2026-09-15",
      "value_m": -450.4
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 1807.7,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 682.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 18.8,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 89.5,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -4.7,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 9.5,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -35.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -9.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 251.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -259.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 97.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      }
    ],
    "concentration_pct": 55.4,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $2,647.7M in net inflows over 21 recorded sessions; 13 positive, 8 negative and 0 flat. IBIT accounts for 55.4% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-08-31": {
    "label": "Calendar month",
    "start": "2026-08-01",
    "end": "2026-08-31",
    "trading_days": 21,
    "observed_rows": 21,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": 3539.1,
    "first_observation": "2026-08-03",
    "last_observation": "2026-08-31",
    "positive_days": 16,
    "negative_days": 5,
    "largest_inflow": {
      "date": "2026-08-20",
      "value_m": 606.3
    },
    "largest_outflow": {
      "date": "2026-08-28",
      "value_m": -201.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 3089.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 325.4,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 69.9,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 22.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -17.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -8.8,
        "reported_days": 20,
        "expected_days": 21,
        "complete": false
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -97.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -4.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 86.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -137.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 210.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      }
    ],
    "concentration_pct": null,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 1,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $3,539.1M in net inflows over 21 recorded sessions; 16 positive, 5 negative and 0 flat.",
    "notes": [
      "Fund attribution is incomplete or does not reconcile; no concentration percentage is inferred."
    ]
  },
  "month-2026-07-31": {
    "label": "Calendar month",
    "start": "2026-07-01",
    "end": "2026-07-31",
    "trading_days": 22,
    "observed_rows": 22,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": 172.8,
    "first_observation": "2026-07-01",
    "last_observation": "2026-07-31",
    "positive_days": 13,
    "negative_days": 9,
    "largest_inflow": {
      "date": "2026-07-06",
      "value_m": 265.7
    },
    "largest_outflow": {
      "date": "2026-07-13",
      "value_m": -424.7
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 227.6,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -209.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 33.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 87.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 5.4,
        "reported_days": 21,
        "expected_days": 22,
        "complete": false
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -2.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 1.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 25.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -5.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 73.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -360.4,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 294.6,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      }
    ],
    "concentration_pct": null,
    "leading_fund": "GBTC",
    "unreconciled_days": 0,
    "partial_days": 1,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $172.8M in net inflows over 22 recorded sessions; 13 positive, 9 negative and 0 flat.",
    "notes": [
      "Fund attribution is incomplete or does not reconcile; no concentration percentage is inferred.",
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-06-30": {
    "label": "Calendar month",
    "start": "2026-06-01",
    "end": "2026-06-30",
    "trading_days": 21,
    "observed_rows": 21,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -4509.7,
    "first_observation": "2026-06-01",
    "last_observation": "2026-06-30",
    "positive_days": 3,
    "negative_days": 18,
    "largest_inflow": {
      "date": "2026-06-12",
      "value_m": 85.9
    },
    "largest_outflow": {
      "date": "2026-06-25",
      "value_m": -691.7
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -3553.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -465.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -44.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -48.5,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -72.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -8.9,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -26.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 4.4,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 101.5,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -488.7,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 91.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      }
    ],
    "concentration_pct": 72.5,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $4,509.7M in net outflows over 21 recorded sessions; 3 positive, 18 negative and 0 flat. IBIT accounts for 72.5% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-05-31": {
    "label": "Calendar month",
    "start": "2026-05-01",
    "end": "2026-05-31",
    "trading_days": 20,
    "observed_rows": 20,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -2406.0,
    "first_observation": "2026-05-01",
    "last_observation": "2026-05-29",
    "positive_days": 6,
    "negative_days": 14,
    "largest_inflow": {
      "date": "2026-05-01",
      "value_m": 629.8
    },
    "largest_outflow": {
      "date": "2026-05-27",
      "value_m": -733.4
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -1410.8,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -274.0,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -85.6,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -314.1,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -12.2,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -34.7,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": -3.8,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -0.9,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 0.0,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 68.9,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -330.3,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -8.5,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      }
    ],
    "concentration_pct": 55.5,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $2,406.0M in net outflows over 20 recorded sessions; 6 positive, 14 negative and 0 flat. IBIT accounts for 55.5% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-04-30": {
    "label": "Calendar month",
    "start": "2026-04-01",
    "end": "2026-04-30",
    "trading_days": 21,
    "observed_rows": 21,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": 2021.7,
    "first_observation": "2026-04-01",
    "last_observation": "2026-04-30",
    "positive_days": 14,
    "negative_days": 7,
    "largest_inflow": {
      "date": "2026-04-17",
      "value_m": 663.9
    },
    "largest_outflow": {
      "date": "2026-04-13",
      "value_m": -291.0
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 2013.5,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -163.4,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 34.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": 138.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -1.0,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -4.4,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 8.1,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -24.7,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 6.3,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": 194.4,
        "reported_days": 17,
        "expected_days": 17,
        "complete": true
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -278.6,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 99.2,
        "reported_days": 21,
        "expected_days": 21,
        "complete": true
      }
    ],
    "concentration_pct": 67.9,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $2,021.7M in net inflows over 21 recorded sessions; 14 positive, 7 negative and 0 flat. IBIT accounts for 67.9% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-03-31": {
    "label": "Calendar month",
    "start": "2026-03-01",
    "end": "2026-03-31",
    "trading_days": 22,
    "observed_rows": 22,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 1315.6,
    "first_observation": "2026-03-02",
    "last_observation": "2026-03-31",
    "positive_days": 14,
    "negative_days": 8,
    "largest_inflow": {
      "date": "2026-03-04",
      "value_m": 461.9
    },
    "largest_outflow": {
      "date": "2026-03-06",
      "value_m": -348.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 1398.6,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 36.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -102.8,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -31.9,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 15.3,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 28.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 16.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 14.3,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 16.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -136.2,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 60.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      }
    ],
    "concentration_pct": 75.3,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $1,315.6M in net inflows over 22 recorded sessions; 14 positive, 8 negative and 0 flat. IBIT accounts for 75.3% of the sum of absolute fund-level net flows.",
    "notes": []
  },
  "month-2026-02-28": {
    "label": "Calendar month",
    "start": "2026-02-01",
    "end": "2026-02-28",
    "trading_days": 19,
    "observed_rows": 19,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -206.6,
    "first_observation": "2026-02-02",
    "last_observation": "2026-02-27",
    "positive_days": 9,
    "negative_days": 10,
    "largest_inflow": {
      "date": "2026-02-02",
      "value_m": 561.8
    },
    "largest_outflow": {
      "date": "2026-02-04",
      "value_m": -544.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -150.4,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -277.6,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": 114.4,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -17.3,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 13.6,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -4.4,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.4,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 69.0,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 17.3,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -169.9,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 198.3,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      }
    ],
    "concentration_pct": 26.9,
    "leading_fund": "FBTC",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $206.6M in net outflows over 19 recorded sessions; 9 positive, 10 negative and 0 flat. FBTC accounts for 26.9% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2026-01-31": {
    "label": "Calendar month",
    "start": "2026-01-01",
    "end": "2026-01-31",
    "trading_days": 20,
    "observed_rows": 20,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -1604.8,
    "first_observation": "2026-01-02",
    "last_observation": "2026-01-30",
    "positive_days": 7,
    "negative_days": 13,
    "largest_inflow": {
      "date": "2026-01-14",
      "value_m": 840.6
    },
    "largest_outflow": {
      "date": "2026-01-29",
      "value_m": -817.8
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -136.5,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -841.7,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -61.1,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -150.9,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 11.1,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 21.8,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 6.4,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 2.6,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 7.7,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -449.5,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -14.7,
        "reported_days": 20,
        "expected_days": 20,
        "complete": true
      }
    ],
    "concentration_pct": 49.4,
    "leading_fund": "FBTC",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 2,
    "summary": "Provider-reported totals show $1,604.8M in net outflows over 20 recorded sessions; 7 positive, 13 negative and 0 flat. FBTC accounts for 49.4% of the sum of absolute fund-level net flows.",
    "notes": [
      "2 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2025-12-31": {
    "label": "Calendar month",
    "start": "2025-12-01",
    "end": "2025-12-31",
    "trading_days": 22,
    "observed_rows": 22,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -1092.5,
    "first_observation": "2025-12-01",
    "last_observation": "2025-12-31",
    "positive_days": 8,
    "negative_days": 14,
    "largest_inflow": {
      "date": "2025-12-17",
      "value_m": 457.3
    },
    "largest_outflow": {
      "date": "2025-12-15",
      "value_m": -357.6
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -473.8,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 86.6,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -135.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -194.5,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": -3.9,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -2.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -110.7,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 1.9,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -237.8,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": -23.1,
        "reported_days": 22,
        "expected_days": 22,
        "complete": true
      }
    ],
    "concentration_pct": 37.3,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $1,092.5M in net outflows over 22 recorded sessions; 8 positive, 14 negative and 0 flat. IBIT accounts for 37.3% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2025-11-30": {
    "label": "Calendar month",
    "start": "2025-11-01",
    "end": "2025-11-30",
    "trading_days": 19,
    "observed_rows": 19,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "partial",
    "net_flow_m": -3466.7,
    "first_observation": "2025-11-03",
    "last_observation": "2025-11-28",
    "positive_days": 8,
    "negative_days": 11,
    "largest_inflow": {
      "date": "2025-11-11",
      "value_m": 524.0
    },
    "largest_outflow": {
      "date": "2025-11-20",
      "value_m": -903.2
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": -2336.1,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": -412.7,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -59.8,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -205.9,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 5.0,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": -11.1,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": 0.0,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": -121.7,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": -6.0,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -333.1,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 14.7,
        "reported_days": 19,
        "expected_days": 19,
        "complete": true
      }
    ],
    "concentration_pct": 66.6,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 1,
    "summary": "Provider-reported totals show $3,466.7M in net outflows over 19 recorded sessions; 8 positive, 11 negative and 0 flat. IBIT accounts for 66.6% of the sum of absolute fund-level net flows.",
    "notes": [
      "1 weekday(s) have no row; market holidays and missing records are not distinguished."
    ]
  },
  "month-2025-10-31": {
    "label": "Calendar month",
    "start": "2025-10-01",
    "end": "2025-10-31",
    "trading_days": 23,
    "observed_rows": 23,
    "source_url": "https://farside.co.uk/bitcoin-etf-flow-all-data/",
    "unit": "USD millions",
    "status": "available",
    "net_flow_m": 3424.9,
    "first_observation": "2025-10-01",
    "last_observation": "2025-10-31",
    "positive_days": 13,
    "negative_days": 10,
    "largest_inflow": {
      "date": "2025-10-06",
      "value_m": 1205.2
    },
    "largest_outflow": {
      "date": "2025-10-16",
      "value_m": -530.9
    },
    "per_fund": [
      {
        "ticker": "IBIT",
        "net_flow_m": 3931.2,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "FBTC",
        "net_flow_m": 163.8,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "BITB",
        "net_flow_m": -30.3,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "ARKB",
        "net_flow_m": -237.2,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "BTCO",
        "net_flow_m": 7.2,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "EZBC",
        "net_flow_m": 10.1,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "BRRR",
        "net_flow_m": -10.2,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "HODL",
        "net_flow_m": 66.7,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "BTCW",
        "net_flow_m": 6.0,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "MSBT",
        "net_flow_m": null,
        "reported_days": 0,
        "expected_days": 0,
        "complete": false
      },
      {
        "ticker": "GBTC",
        "net_flow_m": -546.5,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      },
      {
        "ticker": "BTC",
        "net_flow_m": 64.1,
        "reported_days": 23,
        "expected_days": 23,
        "complete": true
      }
    ],
    "concentration_pct": 77.5,
    "leading_fund": "IBIT",
    "unreconciled_days": 0,
    "partial_days": 0,
    "weekday_gaps": 0,
    "summary": "Provider-reported totals show $3,424.9M in net inflows over 23 recorded sessions; 13 positive, 10 negative and 0 flat. IBIT accounts for 77.5% of the sum of absolute fund-level net flows.",
    "notes": []
  }
}