How are Forex symbols setup for the Interactive Brokers data source?
The IB Version now supports improved setup and chart backfill for currency pairs, e.g. EUR.USD, JPY.USD, etc. When adding such instruments via the Setup: Instruments window. choose "Forex" as the security type. IRT automatically sets up the Underlying Symbol and the Currency for the instrument by extracting this information from the ticker symbol, e.g. the ticker EUR.USD results in EUR as Underlying and USD as currency.