{
  "summary": {
    "date": "2025-08-22",
    "source_path": "/Users/lutherbot/.openclaw/workspace/data/cbbo_spread_cache/spread_cache_2025-08-22.parquet",
    "n_rows": 23397,
    "event_count": 23,
    "first_ts": 1755869403,
    "last_ts": 1755892799,
    "full_session_seconds": 23397
  },
  "events": [
    {
      "date": "2025-08-22",
      "cluster_id": 1,
      "ts": 1755870386,
      "cluster_size": 3,
      "max_p_ratio": 12.0,
      "max_c_ratio": 22.0,
      "max_ratio": 22.0,
      "p_ratio_t0": 2.6666666666666665,
      "c_ratio_t0": 9.499999999999998,
      "p_spread_t0": 0.4,
      "c_spread_t0": 1.9,
      "p_base_t0": 0.15000000000000002,
      "c_base_t0": 0.2
    },
    {
      "date": "2025-08-22",
      "cluster_id": 2,
      "ts": 1755871170,
      "cluster_size": 31,
      "max_p_ratio": 30.0,
      "max_c_ratio": 95.23076923076924,
      "max_ratio": 95.23076923076924,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.5,
      "p_spread_t0": 0.4,
      "c_spread_t0": 0.5,
      "p_base_t0": 0.2,
      "c_base_t0": 0.2
    },
    {
      "date": "2025-08-22",
      "cluster_id": 3,
      "ts": 1755871809,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 4.714285714285714,
      "max_ratio": 4.714285714285714,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 4.714285714285714,
      "p_spread_t0": 0.2,
      "c_spread_t0": 3.3,
      "p_base_t0": 0.1,
      "c_base_t0": 0.7
    },
    {
      "date": "2025-08-22",
      "cluster_id": 4,
      "ts": 1755872563,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 4.000000000000001,
      "max_ratio": 4.000000000000001,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.615384615384616,
      "p_spread_t0": 0.2,
      "c_spread_t0": 1.7,
      "p_base_t0": 0.1,
      "c_base_t0": 0.6499999999999999
    },
    {
      "date": "2025-08-22",
      "cluster_id": 5,
      "ts": 1755873291,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.0,
      "max_ratio": 2.0,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.0,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.0,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 6,
      "ts": 1755873377,
      "cluster_size": 5,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.4,
      "max_ratio": 2.4,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.4,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.2,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 7,
      "ts": 1755873548,
      "cluster_size": 4,
      "max_p_ratio": 2.0,
      "max_c_ratio": 3.2727272727272725,
      "max_ratio": 3.2727272727272725,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 3.2,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.6,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 8,
      "ts": 1755873733,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 6.916666666666668,
      "max_ratio": 6.916666666666668,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.0,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.2,
      "p_base_t0": 0.05,
      "c_base_t0": 0.6
    },
    {
      "date": "2025-08-22",
      "cluster_id": 9,
      "ts": 1755873897,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 4.699999999999999,
      "max_ratio": 4.699999999999999,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 4.699999999999999,
      "p_spread_t0": 0.1,
      "c_spread_t0": 2.3499999999999996,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 10,
      "ts": 1755874010,
      "cluster_size": 3,
      "max_p_ratio": 2.0,
      "max_c_ratio": 12.111111111111109,
      "max_ratio": 12.111111111111109,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 12.111111111111109,
      "p_spread_t0": 0.1,
      "c_spread_t0": 5.449999999999999,
      "p_base_t0": 0.05,
      "c_base_t0": 0.45
    },
    {
      "date": "2025-08-22",
      "cluster_id": 11,
      "ts": 1755874086,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.2,
      "max_ratio": 2.2,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.2,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.1,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 12,
      "ts": 1755874222,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.7,
      "max_ratio": 2.7,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.7,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.35,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 13,
      "ts": 1755874326,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.1,
      "max_ratio": 2.1,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.1,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.05,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 14,
      "ts": 1755874569,
      "cluster_size": 3,
      "max_p_ratio": 2.0,
      "max_c_ratio": 5.999999999999999,
      "max_ratio": 5.999999999999999,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 5.999999999999999,
      "p_spread_t0": 0.1,
      "c_spread_t0": 2.4,
      "p_base_t0": 0.05,
      "c_base_t0": 0.4
    },
    {
      "date": "2025-08-22",
      "cluster_id": 15,
      "ts": 1755874720,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.4444444444444446,
      "max_ratio": 2.4444444444444446,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.4444444444444446,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.1,
      "p_base_t0": 0.05,
      "c_base_t0": 0.45
    },
    {
      "date": "2025-08-22",
      "cluster_id": 16,
      "ts": 1755874784,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.3333333333333335,
      "max_ratio": 2.3333333333333335,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.3333333333333335,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.05,
      "p_base_t0": 0.05,
      "c_base_t0": 0.45
    },
    {
      "date": "2025-08-22",
      "cluster_id": 17,
      "ts": 1755875292,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.3,
      "max_ratio": 2.3,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.3,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.15,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 18,
      "ts": 1755875382,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.4,
      "max_ratio": 2.4,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.2,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.1,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 19,
      "ts": 1755875769,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 4.25,
      "max_ratio": 4.25,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 4.25,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.7,
      "p_base_t0": 0.05,
      "c_base_t0": 0.4
    },
    {
      "date": "2025-08-22",
      "cluster_id": 20,
      "ts": 1755876355,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 4.375,
      "max_ratio": 4.375,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 4.375,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.75,
      "p_base_t0": 0.05,
      "c_base_t0": 0.4
    },
    {
      "date": "2025-08-22",
      "cluster_id": 21,
      "ts": 1755879358,
      "cluster_size": 2,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.4,
      "max_ratio": 2.4,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.3,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.15,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 22,
      "ts": 1755879432,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.2,
      "max_ratio": 2.2,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.2,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.1,
      "p_base_t0": 0.05,
      "c_base_t0": 0.5
    },
    {
      "date": "2025-08-22",
      "cluster_id": 23,
      "ts": 1755879964,
      "cluster_size": 1,
      "max_p_ratio": 2.0,
      "max_c_ratio": 2.5,
      "max_ratio": 2.5,
      "p_ratio_t0": 2.0,
      "c_ratio_t0": 2.5,
      "p_spread_t0": 0.1,
      "c_spread_t0": 1.0,
      "p_base_t0": 0.05,
      "c_base_t0": 0.4
    }
  ]
}