Please post back what you find out. I am also with Interactive Brokers and I’m trying to hedge some currency risk. I’m more familiar with trading equities and options, so using a currency ETF like FXE would be the easiest for me, but I think the ETF management fee is 0.40%. I haven’t done futures trading so I don’t know the impact of commissions and slippage costs.
Another question I have is how much ETF or futures will impact your buying power