Short Activity in PNV, page-5728

Not agree.

In the high frequency trading models, big entities buy and sell in seconds.
Apparently, it doesn't cost those professionals / big entities much brokerage fee to effect a transaction.
E.g. You can often see lots of '1' unit buy and sell transaction in a lot of stocks. It certainly doesn't cost them 19.95 to effect a transaction.
In my opinion, in order for the big players to manipulate the share price and to create fear, as the transaction cost is almost negligible, it wouldn't hurt them to short the shares at the opening and slowly buying back towards the end of the day.

My interpretation is - the shorts are reduced by 54,825. In my opinion, the rest are irrelevant.