Unlikely? Not at all, since it was VERIFIED. First, quite some time ago by a comparison of the NOBO and DTCC docs by those with access to them. Then, later, it was found to have gotten a lot larger by a simple head count after the last OS figures came out. There is an NSS on SPNG, it's huge, and it's growing.
Very unlikely there's any NSS to speak of...Checked the fail to deliver list lately?
One of the biggest indicators that someone doesn't really understand naked shorting is when they immediately start babbling about FTD's as their 'proof'.
FTD's are irrelevant. In brief, they reset the clock on the naked shorts at regular intervals and they never FTD.