shorter version...
MMs are notified of the "buy-in", they have that day to get all shares (settled or not, real or not, etc ) accounted for...before 6pm THAT DAY...the provisions state that "Silence = Acceptence", so to do nothing would be COSTLY
at this point IMO is when ALL HELL BREAKS LOOSE.
so...we will have an answer the same day as this "Buy In" has been initiated...ONE WAY OR ANOTHER
if they still do nothing, then this is when the FAILURE TO DELIVER proceedings start...no good, and could be expensive.
Thank you FINRA.