{
  "data_mode": "synthetic",
  "description": "Invented figures for schema and interface testing. Not live market data.",
  "observed_at": "2026-09-10T14:30:00Z",
  "underlying_id": "EXAMPLE",
  "underlying_price": 100,
  "currency": "USD",
  "premium_multiplier": 100,
  "contracts": [
    {
      "contract_id": "EXAMPLE-20261218-C-95",
      "option_type": "call",
      "strike": 95,
      "expiration_date": "2026-12-18",
      "bid": 6.1,
      "ask": 6.4,
      "quote_unit": "USD per share",
      "is_synthetic": true
    },
    {
      "contract_id": "EXAMPLE-20261218-C-100",
      "option_type": "call",
      "strike": 100,
      "expiration_date": "2026-12-18",
      "bid": 2.1,
      "ask": 2.4,
      "quote_unit": "USD per share",
      "is_synthetic": true
    },
    {
      "contract_id": "EXAMPLE-20261218-C-105",
      "option_type": "call",
      "strike": 105,
      "expiration_date": "2026-12-18",
      "bid": 0.7,
      "ask": 0.9,
      "quote_unit": "USD per share",
      "is_synthetic": true
    },
    {
      "contract_id": "EXAMPLE-20261218-P-95",
      "option_type": "put",
      "strike": 95,
      "expiration_date": "2026-12-18",
      "bid": 0.6,
      "ask": 0.8,
      "quote_unit": "USD per share",
      "is_synthetic": true
    },
    {
      "contract_id": "EXAMPLE-20261218-P-100",
      "option_type": "put",
      "strike": 100,
      "expiration_date": "2026-12-18",
      "bid": 2.0,
      "ask": 2.3,
      "quote_unit": "USD per share",
      "is_synthetic": true
    },
    {
      "contract_id": "EXAMPLE-20261218-P-105",
      "option_type": "put",
      "strike": 105,
      "expiration_date": "2026-12-18",
      "bid": 5.7,
      "ask": 6.0,
      "quote_unit": "USD per share",
      "is_synthetic": true
    }
  ]
}