{
  "ticker": "NDX",
  "index_name": "NASDAQ 100 Index",
  "currency": "USD",
  "frequency": "daily",
  "ratio": "pe-trailing",
  "data": [
    {
      "trading_day (EOD)": "2023-12-29",
      "value": 30.25
    },
    {
      "trading_day (EOD)": "2024-06-28",
      "value": 31.82
    },
    {
      "trading_day (EOD)": "2024-12-31",
      "value": 32.36
    },
    {
      "trading_day (EOD)": "2025-03-31",
      "value": 28.73
    },
    {
      "trading_day (EOD)": "2025-06-30",
      "value": 32.24
    },
    {
      "trading_day (EOD)": "2025-09-30",
      "value": 32.98
    },
    {
      "trading_day (EOD)": "2025-12-31",
      "value": 32.32
    }
  ],
  "_meta": {
    "tier": "free",
    "documentation": "https://siblisresearch.com/api-guide-global-equity-valuations-database/",
    "commercial_api": "https://siblisresearch.com",
    "note": "Free tier — historical month-end snapshots only. For daily data, the full ticker universe, /stats and bulk downloads, get a commercial API key."
  }
}