Historical data

In forex, historical data describes the collected price information for currencies, based on a time period. JForex platform uses the term "historical test" for testing a strategy (expert advisor) on historical data, while MetaTrader uses "back test".

In JForex, historical data and real-time data is different, when using DEMO platform. And real-time tick data is different on DEMO and LIVE. This is because BID/OFFER orders affect tick price values.