When the famous "Reg SHO" list was first created, it was supposed to expose naked shorting, and to have the effect of slowing it down or eliminating it. All it appears to have done is to expose it. When I checked the Reg SHO list on March 15, it was 12,700 companies long. In general, pretty much every company is on that list, at least in an “on and off” sort of pattern. The data indicates (to me) that in most cases naked shorts exist for fairly short periods of time and in fairly low numbers. Maybe even to the extent that it's now thought of as background noise, or the "cost of doing business". Some companies on that list are in more of a chronic situation, and many with a very large maintained naked short position.
The very worst of the naked shorting (very high amount for very long duration) make it to the Reg SHO Threshold List. To get there, it appears that there must be a planned and orchestrated shorting strategy in place. As of yesterday, there were 46 companies on the Threshold list, and ONCY is one of them.
An extensive discussion of the Threshold List, how it works, and where ONCY’s position is in it, has been available on the oncyV2 board for a while now.