| Name | Type | Description |
|---|---|---|
| last | Float | The price of the last trade |
| last_size | Integer | The size of the last trade |
| last_timestamp | DateTime | The time of the last trade |
| volume | Integer | The cumulative volume of this options contract that traded that day. |
| ask | Float | The price of the top ask order |
| ask_size | Integer | The size of the top ask order |
| ask_timestamp | DateTime | The timestamp of the top ask order |
| bid | Float | The price of the top bid order |
| bid_size | Integer | The size of the top bid order |
| bid_timestamp | DateTime | The time of the top bid order |
| open_interest | Integer | The total number of this options contract that are still open. |
| exercise_style | String | The exercise style of the option. ("A" = "American", "E" = "European") |