Practically saying SBD was not suppose to be more than USD 1 ,however got to see some things that are pumping and saw some posts related to it as well .For Suppose many people are using SBD for voting bots for their posts to upvote which might be a prime reason for the pump as most of the Steemian are in for it ,which gives a tremendous reason to get hands on SBD !Which is just a speculation though buddy !