The SBD APR has been fluctuating between 0 and 0.01% in the last week.
But isn't the APR greater than zero when the price of SBD is below the 1$ peg?
SBD price seems to be just above the peg according to steem.supply, not sure if this is an after-effect of the 0.01% interest rate or not.
not necessarily, or automatically. It's set up by witness consensus.