FX data

The FX file supplies exchange rate information for use when

• local currency returns are not supplied, and need to be calculated from base currency returns, in which case BaseToLocal will be set to true in the configuration settings; or
• base currency returns are not supplied, and need to be calculated from local currency returns, in which case LocalToBase will be set to true in the configuration settings..

FX rates are usually measured against a base currency, typically the US dollar. Note that because the rates in this file are used to calculate returns, FIA uses the ratios of rates rather than absolute values. There is therefore no need to specify which base currency is being used.