SP isn't traded, but you can buy (but not sell) SP from blocktrades as an alternative to buying Steem and powering it up yourself.
SD is traded on several exchanges as you can see from the graphic. Hope this helps clarify things.
SP isn't traded, but you can buy (but not sell) SP from blocktrades as an alternative to buying Steem and powering it up yourself.
SD is traded on several exchanges as you can see from the graphic. Hope this helps clarify things.
RE: Steem & Steem Dollar Exchanges