Reference Data

Currencies

base_currency

The base currency. Potentially the base currency of underlying symbol if symbol is a derivative, e.g. a future.

This typically refers to “what you buy or sell”.

quote_currency

The quote currency.

This typically refers to “what you have to pay when you buy or sell”.

settlement_currency

For linear products, same as quote_currency. For inverse products, same as base_currency.

This is typically used for P&L calculations.

commission_currency

The commission currency. Potentially the currency used for the “fee”.

This field is optional and, when available, may only be indicative for the fee currency.

There are reasons why this could be different, e.g. what margin account is being used, bi-laterally agreed currency, etc. This is the reason why you will find the commission_currency field on roq::Fill (used by roq::TradeUpdate).