| Name | Type | Description |
|---|---|---|
| contract | String | The option contract |
| underlyingSymbol | String | The ticker symbol |
| timestamp | Date | The UTC timestamp at the time of the trade. |
| price | Number | The price of the trade. |
| size | Number | The size of the trade. |
| totalVolume | Number | The total volume of the symbol for the day up to the timestamp point in time. |
| askPriceAtExecution | Number | The price of ask quote at the time of the trade. |
| bidPriceAtExecution | Number | The price of bid quote at the time of the trade. |
| exchange | String | The exchange for the trade. |
| conditions | String | The condition of the trade. |
| sequenceId | Number | The sequential ID for the trade, ordered as temporally received from the exchange. |