100 Bitcoin at the end of 2017??? OKAY..5x to 10x is NOT conservative. You should NEVER trade with 50x or 100x. 25x tops. It's a long run game and key is to be patient and pick your spots. Just cause it offers you 100x doesn't mean you have to trade 100x. They could offer 5000x. Does it mean you have to trade max? Know what % move on what level of margin would wipe you out (20% margin or less liquidation rule). So at 5x leverage, you only get to lose 80%. So 80/5 is 16%. Only need to move 16% to wipe you out. at 10x leverage, 80/10 is 8%. 8% move wipes you out, and at 50x, 80/50 is a 2% move to wipe you out. Good luck lasting more than a few seconds!!!