{
  "series_id": "NASDAQCOM_12M_AVG",
  "source": "derived",
  "shortName": "NASDAQ (12M Avg)",
  "updateFrequency": "daily",
  "unit": "index",
  "derivation": {
    "type": "rolling_ma",
    "source": "NASDAQCOM",
    "window": 252,
    "description": "12-month (252 trading day) rolling moving average of the NASDAQ Composite Index"
  }
}