changes info returned by the API is meant to be accurate and complete only for contractMultiplier values (we monitor exchanges announcements for that), rest of the changes are done on best effort basis and not always complete.
{ id: string // symbol id datasetId: string // id used for CSV datasets downloads exchange: string // exchange id baseCurrency: string // normalized, so for example bitmex XBTUSD has base currency set to BTC not XBT quoteCurrency: string // normalized, so for example bitfinex BTCUST has quote currency set to USDT, not UST type:'spot'|'perpetual'|'future'|'option' active: boolean // indicates if the instrument can currently be traded. availableSince: string,// date in ISO format availableTo: string |undefined,// date in ISO format expiry: string |undefined// in ISO format, only for futures and options priceIncrement: number // price tick size, price precision can be calculated from it amountIncrement: number // amount tick size, amount/size precision can be calculated from it minTradeAmount: number // min order size margin: boolean |undefined// set to true for margin enabled spot currency pairs, only available for spot symbols makerFee: number // consider it as illustrative only, as it depends in practice on account traded volume levels, different categories, VIP levels, owning exchange currency etc
takerFee: number // consider it as illustrative only, as it depends in practice on account traded volume levels, different categories, VIP levels, owning exchange currency etc
inverse: boolean |undefined// only for derivatives contractType: "move" | "linear_future" | "inverse_future" | "quanto_future" | "linear_perpetual" | "inverse_perpetual" | "quanto_perpetual" | "put_option" | "call_option" | "turbo_put_option" | "turbo_call_option" | "spread" | "interest_rate_swap" | "repo" | "index" // only for derivatives, detailed contract type
contractMultiplier: number |undefined// only for derivatives quanto: boolean |undefined// set to true for quanto instruments, otherwise undefined settlementCurrency: string | undefined // settlement currency, only for quanto instruments as it's different base/quote currency
strikePrice: number |undefined// strike price, only for options optionType:'call'|'put'// option type, only for options changes:undefined| { until: string // date in ISO format priceIncrement: number |undefined amountIncrement: number |undefined contractMultiplier: number |undefined }[]}
