
Perhaps.
I got great backtest results with the EMA No.2 A3 System on AFR.DE (Air France , traded on Xetra): round about 2000% since 2007. Then I tried AF.PA (Air France traded in Paris): round about 120% since 2007.

The EMA works better with the Xetra quotes, because the volume is low, not so noisy like the quotes on the Paris exchange. But is it possible to work with the Xetra Charts and a trade execution in Paris?
Does the idea work?
On a chart a lot of things could look great









