You can't add FTDs together and expect to reach any meaningful value.
It is like taking roll call in a classroom and adding all the absences together for the year then saying that there were 300 children missing from a 30 child classroom.
The ftd list is cumulative. That means that every share that has not settled to the present day is on the list. You can't add yesterdays list to todays because if yesterdays shares have not settled then they are included on todays list already. The current list is EVERY SHARE that has not yet settled, every one.
here's another interesting loophole to add to your factoids on ftds
nice to see activity on rcch these past few days ~
-- Another loophole that is the repository for millions or billions of counterfeit shares is the DTC - sponsored and SEC - condoned RECATS program. The DTC, as a service to its prime broker - member/owners, notifies the broker when a position is about to become a fail-to-deliver. The broker may send the position out of DTC by transferring it overseas or doing a match trade with another party. The position may be returned to the DTC where the account is marked to market (value) and all of the time requirements of naked shorting are reset. The cycle can be repeated as often as is necessary to keep the positions naked.