You’re absolutely correct. If you go long EUR/USD and EUR/JPY you are basically doing a double long the euro. If you go long EUR/USD and short EUR/JPY you’re basically cancelling out your euro exposure, leaving you effecitvely short USD/JPY.
These are things a lot of new traders get tripped up by and why it’s good to focus on one position at a time when you get started.
Thats why I’d like to try stocks out. They are all more or less independent. Ya, there are sectors, but I still think it would be better. I just don’t have startup capital required by law.
Stocks are most definitely not “more or less independent”. A large chunk of them are quite highly correlated to the overall market, and thus to each other.