Surely you have a link that explains that the Reg SHO list has nothing to do with shorting. I would be very curious to see that, since the link THAT I HAVE is here:
On the interactive broker site there were 200k available to short yesterday, now today its down to 20k (but who knows where the inventory started from, I think I remember seeing it in the 7 figure area)
This is only what the Interactive brokers have available to short openly in their system. Although if you have an account I think you can build a larger position. So who knows what the real volume is?
I have been watching this page for months and found this number really is not a good indicator of what is happening regarding shorting to KATX.
But it does at least make it obvious to posters that claim there is no shorting (or have ever been) of this stock going on.