Although margin trading is available on select pairs, Kraken has stated that REP balances can’t be used as collateral for opening margin position on other instruments, “For this reason you should always maintain adequate balances in other collateral currencies to maintain your margin positions,” writes Kraken.
The REP Augur token was also added to Swiss-based automated exchange ShapeShift.io yesterday. Emily, ShapeShift's head of marketing, wrote:
"There are some pretty cool projects floating around the crypto-sphere. One that ShapeShift has been keeping an eye on is the decentralized prediction market platform, Augur. We are now excited to announce our addition of the Augur token, Reputation (REP)."Additionally, Toronto-based multi-platform digital currency wallet provider Jaxx announced support for the Augur token last Friday.