Known as the Funding Exchange Rate.
Assembly: libPublic (in libPublic.dll) Version: 4.0.2018.0 (4.0.18103)
Property ValueType: Decimal
If the currency of the position is different to the cash account currency, an exchange rate is required
in order to reconcile everything back to the cash account currency.
If no exchange rate is supplied the rate will default to 1.
If the position currency equals the cash account currency, no exchange rate is required.