Margin trading with up to 3x leverage is available long or short, meaning that clients can gain up to 3x the underlying move in bitcoin price and profit in both up and down markets. (kraken.com)
If the underlying moves up and the option expires, a call option will now have a 100 Delta and the corresponding put will have a 0 Delta. (swanglobalinvestments.com)
Remember if the underlying moves to the strike level the binary pricing should be around 50 which is a $ 30 - 40 profit if you exit. (nadex.com)