My question is why is the rate higher on one exchange than on another?
We need to be very careful on how e trade without stop lose. This can become a big problem to us.
I will like you to emphasize more on the stop loss of a thing. Do you believe the exchange see when you are trading with a stop loss and when you are trading without it? I have always had this believe that there is definitely something watching where you placed your stop loss and will go trigger it and it it will reverse immediately it is triggered.
Arbitrage traders make and regulate the difference between prices in exchanges and earn a living from there. I think that exchange owners has little or nothing behind it.