{
  "account_owner": "Example account owner - synthetic",
  "account_last_four": "0042",
  "period_start": "2026-09-01",
  "period_end": "2026-09-30",
  "positions": [
    {
      "security_reference": "DEMO-SECURITY-0042",
      "description": "Example document line - original synthetic data",
      "quantity": 1,
      "stated_price": 1250,
      "market_value": 1250
    }
  ],
  "ending_value": 1250
}