You do realize that currency settlement takes 1-2 days, right? "Spot foreign exchange transactions usually settle two business days after the execution date"

You do realize that currency settlement takes 1-2 days, right? "Spot foreign exchange transactions usually settle two business days after the execution date" https://www.investopedia.com/terms/s/settlementdate.asp#:~:text=Most%20stocks%20and%20bonds%20settle,days%20after%20the%20execution%20date https://www.investopedia.com/terms/s/settlementdate.asp#:~:t.... Real-time gross settlement is the instant way of transferring money between banks. Try and send $100K to someone and getting it done same day. Most people don't have access to that system. https://en.wikipedia.org/wiki/Real-time_gross_settlement https://en.wikipedia.org/wiki/Real-time_gross_settlement