Update:Poloniex is the first exchange supports Cosmos staking, but it is available for non-US customers.
Cosmos Staking is Live
We’re excited to be the first exchange to offer you Cosmos staking with no lock-up period (non-US customers only). Simply hold ATOM on Poloniex and you’ll be automatically credited with Cosmos staking rewards in your account each day. Because there is no lock-up period, you are able to trade your ATOM freely while generating staking rewards, and you can withdraw at any time. Deposit ATOM and start earning now! For more information, please see our announcement and Help Center FAQ.
Posted by The Poloniex Team at 2019-06-28 18:15:47
The first daily @cosmos staking reward distribution has been made! 352 $ATOM have been distributed to eligible non-US customers.
Learn more here:
http://ow.ly/SQUD50uPJXN Cosmos staking is live!
Simply deposit @cosmos $ATOM to Poloniex and begin earning daily staking rewards today! With no lock-up period, you’re free to trade and withdraw anytime (non-US customers only)