{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://eodhd.com/schemas/options-contract",
  "title": "Options Contract",
  "description": "Options contract record with Greeks returned by the /mp/unicornbay/options/contracts endpoint",
  "type": "object",
  "properties": {
    "contract": {
      "type": "string",
      "description": "Options contract identifier"
    },
    "underlying_symbol": {
      "type": "string",
      "description": "Symbol of the underlying security"
    },
    "exp_date": {
      "type": "string",
      "description": "Expiration date in YYYY-MM-DD format"
    },
    "expiration_type": {
      "type": ["string", "null"],
      "description": "Type of expiration (e.g., weekly, monthly)"
    },
    "type": {
      "type": "string",
      "enum": ["call", "put"],
      "description": "Option type"
    },
    "strike": {
      "type": ["number", "null"],
      "description": "Strike price"
    },
    "exchange": {
      "type": ["string", "null"],
      "description": "Exchange where the option trades"
    },
    "currency": {
      "type": ["string", "null"],
      "description": "Currency of the option contract"
    },
    "open": {
      "type": ["number", "null"],
      "description": "Opening price"
    },
    "high": {
      "type": ["number", "null"],
      "description": "Highest price"
    },
    "low": {
      "type": ["number", "null"],
      "description": "Lowest price"
    },
    "last": {
      "type": ["number", "null"],
      "description": "Last traded price"
    },
    "volume": {
      "type": ["integer", "null"],
      "description": "Trading volume"
    },
    "open_interest": {
      "type": ["integer", "null"],
      "description": "Number of open contracts"
    },
    "bid": {
      "type": ["number", "null"],
      "description": "Current bid price"
    },
    "ask": {
      "type": ["number", "null"],
      "description": "Current ask price"
    },
    "implied_volatility": {
      "type": ["number", "null"],
      "description": "Implied volatility"
    },
    "delta": {
      "type": ["number", "null"],
      "description": "Delta Greek - rate of change of option price with respect to underlying price"
    },
    "gamma": {
      "type": ["number", "null"],
      "description": "Gamma Greek - rate of change of delta"
    },
    "theta": {
      "type": ["number", "null"],
      "description": "Theta Greek - time decay of option value"
    },
    "vega": {
      "type": ["number", "null"],
      "description": "Vega Greek - sensitivity to volatility"
    },
    "rho": {
      "type": ["number", "null"],
      "description": "Rho Greek - sensitivity to interest rate"
    }
  },
  "required": ["contract", "underlying_symbol", "exp_date", "type"]
}