market: Unique name of the market.
min_time: Minimal available time for data from this market in ISO 8601 date-time format.
max_time: Maximal available time for data from this market in ISO 8601 date-time format.
exchange: Name of the exchange.
base: The contract’s underlying base asset.
quote: The contract's underlying quote asset.
symbol: The unique name of the derivative market symbol.
type: The type of the market. Can take values
size_asset: The asset that the contract’s size is denominated in.
margin_asset: The name of the asset that the contract’s margin is denominated in.
strike: Strike price for option contract.
option_contract_type: The type of option. Can take values
is_european: Shows if the options contract is european or not.
contract_size: The number of units of
size_assetthat one contract represents.
tick_size: The minimum price increment of the contract’s price.
listing: The timestamp that the contract first became available for trading
expiration: The timestamp that the contract expires; equals null if the contract is a perpetual future that never expires.
margin_assetthe asset of settlement?
margin_assetis the asset of settlement. A trader must post this asset as the initial margin when opening a position. Unrealized gains and losses are calculated in this asset, and a trader receives gains or losses denominated in this asset when the trader closes the position or the contract expires.