You will not find a service that offers margin trading without margin calls. These two are mutually dependent.
Yes, I know. Thats why I don't want margin trading. Thats why I asked about leveraged trading. They are different. Cut offs would never happen. A leveraged trade can goto 0 and no one cares except me because I lost all my money. Thats what I was hoping might be available for Bitcoin trading from somewhere. I think Whaleclub is leveraged actually, just high fees.