When I look at data in MetaTrader4 there are slight differences in quotes between a demo account and a real account. I just exported 4 hour quotes. During the past month the difference has been up to half a pip for some of the open prices for EURUSD. High, low and close prices and volume also differ. The broker is not FXCM but another large well-known broker. So I'm curious if the Z system tests are made with demo data or real data. Thanks again.
Regards