{
  "checks": [
    {
      "symbol": "BIL",
      "max_adjustment_factor_error": 1.5906232375684226e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.004350507127680814
    },
    {
      "symbol": "DBC",
      "max_adjustment_factor_error": 3.123434091367727e-07,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.07944429064906278
    },
    {
      "symbol": "GLD",
      "max_adjustment_factor_error": 0.0,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.11290530102327678
    },
    {
      "symbol": "IEF",
      "max_adjustment_factor_error": 1.998881394071894e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.03426164472875404
    },
    {
      "symbol": "IGF",
      "max_adjustment_factor_error": 6.835260448756486e-07,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.1324096685594771
    },
    {
      "symbol": "SPY",
      "max_adjustment_factor_error": 1.0354201119833206e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.14519748432360524
    },
    {
      "symbol": "TLT",
      "max_adjustment_factor_error": 2.2246603028630574e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.07519574123099293
    },
    {
      "symbol": "VNQ",
      "max_adjustment_factor_error": 1.0181611658222067e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.1951365467708568
    },
    {
      "symbol": "XLE",
      "max_adjustment_factor_error": 1.1307640439550681e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.20141143610819956
    },
    {
      "symbol": "XLI",
      "max_adjustment_factor_error": 1.0309998698110334e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.12651224684146167
    },
    {
      "symbol": "XLK",
      "max_adjustment_factor_error": 1.6289361284282933e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.1389828198478964
    },
    {
      "symbol": "XLU",
      "max_adjustment_factor_error": 1.1345273134288902e-06,
      "factor_errors_above_0_5bps": 0,
      "exceptions": {},
      "largest_absolute_daily_total_return": 0.1279340177521513
    }
  ],
  "method": "Check changes in adj_close/close against dividends using provider split-adjusted closes and dividends; no independent full-history total-return certification. Threshold 0.5bp is numerical tolerance, not market-price certification."
}