Options contract details
| Name | Type | Description | Notes |
|---|---|---|---|
| name | str | Options contract name | [optional] |
| tag | str | Expiry periods include day, week, and month. | [optional] |
| create_time | float | Created time | [optional] |
| expiration_time | float | Expiration time | [optional] |
| is_call | bool | `true` means call options, `false` means put options | [optional] |
| multiplier | str | The option contract multiplier indicates how many units of the underlying asset the face value of one contract represents. | [optional] |
| underlying | str | Underlying | [optional] |
| underlying_price | str | The forward futures price corresponding to the delivery date | [optional] |
| last_price | str | Last trading price | [optional] |
| mark_price | str | Current mark price (quote currency) | [optional] |
| index_price | str | Current index price (quote currency) | [optional] |
| maker_fee_rate | str | Maker fee rate, negative values indicate rebates | [optional] |
| taker_fee_rate | str | Taker fee rate | [optional] |
| order_price_round | str | Minimum order price increment | [optional] |
| mark_price_round | str | Minimum mark price increment | [optional] |
| order_size_min | int | Minimum order size allowed by the contract | [optional] |
| order_size_max | int | Maximum order size allowed by the contract | [optional] |
| order_price_deviate | str | Deprecated | [optional] |
| ref_discount_rate | str | Trading fee discount for referred users | [optional] |
| ref_rebate_rate | str | Commission rate for referrers | [optional] |
| orderbook_id | int | Orderbook update ID | [optional] |
| trade_id | int | Deprecated | [optional] |
| trade_size | int | Historical cumulative trading volume | [optional] |
| position_size | int | Current total long position size | [optional] |
| orders_limit | int | The maximum number of open orders each user can place in this order book. | [optional] |