Heres my tradeables and current spreads (vs USD)
Bitcoin 70
Ripple 1
Ether 8
Litecoin 3
Bitcoin Cash 12

Their pip system is a little strange, but it roughly equates to USD (ie 70 is $70 per 'lot')

oh and the margin required for Bitcoin is 25% !!! so at the moment for every lot of BTC I need to put up approx $3000...