There is no premium paid to them by some shareholders. Nothing hinders anyone from running large spread bots and to make profit from the spread. I just don’t see why these people should get an additional income from the shareholders.
Only short-term speculators and shareholders. Just like on a multipool which optionally pays out in BTC or in the alt coin. So far almost all of our liquidity comes from shareholders. For Nu shareholders its the same, since in both cases 5M NSR need to be printed to make the payout or to burn the NBT. However, it is much harder finding one person willing to make a grant that burns 10,000 NBT or more (it also involves trust), than just continuously paying out NSR to the users.