Bitmex brings referral program to invite new users with 10% trading fees discount. Referred users would get 10% discount on their trading fees and referee would gets a part of their commission. You can use my referral code e891qg at Bitmex or Use this link to register at Bitmex
https://www.bitmex.com/register/e891qg
If you want to know more about Bitmex Affiliate Program you can also visit at my blog
http://www.webleone.com/bitmex-referral-code-affiliate-program/
Bitmex is one of the best Bitcoin margin trading platform. All Trades on Bitmex are done in Bitcoin only even if you are making trades in Altcoins.