Envelope_CboeOptionsSymbolData_(Envelope[CboeOptionsSymbolData])

{
    "data": {
        "symbol": "string",
        "timestamp": "string",
        "underlying": {
            "symbol": "string",
            "security_type": "string",
            "current_price": 0,
            "price_change": 0,
            "price_change_percent": 0,
            "bid": 0,
            "ask": 0
        },
        "contracts_count": 0,
        "contracts": [
            {
                "contract": "string",
                "bid": 0,
                "ask": 0,
                "last": 0,
                "volume": 0,
                "open_interest": 0,
                "iv": 0,
                "delta": 0,
                "gamma": 0,
                "vega": 0,
                "theta": 0,
                "rho": 0,
                "theo": 0,
                "change": 0,
                "open": 0,
                "high": 0,
                "low": 0,
                "tick": "string"
            }
        ]
    },
    "meta": {
        "endpoint": "/api/v1/fred/us/cpi",
        "data_time": "2026-04-16T14:30:00Z",
        "response_time": "2026-04-16T14:30:12Z",
        "provider": "Sugra API v1.0.1",
        "source": "string",
        "fallback_used": true,
        "fallback_chain": [
            "string"
        ],
        "cached": true
    }
}