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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\DBA\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\PDBA\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\VNQ\\coverage.json"
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    "last": "2026-11-11",
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    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\REET\\coverage.json"
  },
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    "last": "2026-11-11",
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    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\IGF\\coverage.json"
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    "last": "2026-11-11",
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    "original_adjusted_close_preserved": true,
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\MLPX\\coverage.json"
  },
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\AMLP\\coverage.json"
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    "last": "2026-11-11",
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    "original_adjusted_close_preserved": true,
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    "available_for_exploratory_research": true,
    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\USFR\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\BKLN\\coverage.json"
  },
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\MBB\\coverage.json"
  },
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    "original_adjusted_close_preserved": true,
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\LQD\\coverage.json"
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    "original_adjusted_close_preserved": true,
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\PFF\\coverage.json"
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    "last": "2026-11-11",
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    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\EMB\\coverage.json"
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    "last": "2026-11-11",
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    "original_adjusted_close_preserved": true,
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    "dated_problem_rows": 0,
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    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\EMLC\\coverage.json"
  },
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\MNA\\coverage.json"
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    "last": "2026-11-11",
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    "original_adjusted_close_preserved": true,
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    "available_for_exploratory_research": true,
    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\ILS\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\UUP\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\KRBN\\coverage.json"
  },
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    "last": "2026-11-11",
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      "EXISTING_HISTORY_NOT_RECHECKED": 712
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\IBIT\\coverage.json"
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    "last": "2026-11-11",
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\JEPI\\coverage.json"
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    "last": "2026-11-11",
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    "dated_problem_rows": 3,
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\BTAL\\coverage.json"
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    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\TAIL\\coverage.json"
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    "validated_total_return": false,
    "source_coverage_file": "outputs\\C8历史数据扩充-2026-11-12\\PJUN\\coverage.json"
  }
}