{
  "index_code": "CI005026.CI",
  "index_name": "中信通信指数",
  "index_rows": 875,
  "index_first_date": "2023-01-03",
  "index_last_date": "2026-08-13",
  "index_open_status": "unusable_placeholder_equal_to_close",
  "current_member_rule": "截至2026-08-13的中信通信行业A股成分固定样本",
  "current_member_count": 119,
  "member_records": 102752,
  "first_date_coverage": 115,
  "latest_date_coverage": 119,
  "minimum_daily_coverage": 115,
  "days_below_model_threshold": [],
  "missing_latest_codes": [],
  "never_observed_codes": [],
  "source_rows_processed": {
    "cached_history": 83690,
    "missing_full_history": 18868,
    "latest_increment": 238
  },
  "dropped_rows": {
    "not_current_member": 31469,
    "off_calendar": 9812,
    "invalid_close": 382
  },
  "survivorship_bias": "固定使用截止日成分，未逐日回溯历史成分"
}