| Name | Type | Description |
|---|---|---|
| contract | str | The option contract for the intervals |
| change | float | The ratio of Close minus Open to Open. |
| open | float | The first traded contract price in this interval. |
| high | float | The highest traded contract price in this interval. |
| low | float | The lowest traded contract price in this interval. |
| close | float | The last traded contract price in this interval. |
| volume | float | The volume of contracts traded in this interval. |
| average | float | The volume weighted average price of contract trades in this interval. |
| trade_count | float | The number of contract trades executed in this interval |