The net short position has begun to wind down, so institutional shorts are trying to get out
And it seems as if they are cycling some of their short position to retail shorts based on the data and trading. The shares to do this must be coming from institutional/insider longs who have lent out shares. I have done the numbers here, and there is no way that the short churn and shorting in the stock over the last month could have taken place from the open retail market. I wonder if Kovner and Coxton are lending shares for shorting, allowing longs to accumulate at a lower level and setting the stage for a massive squeeze, especially if they call their shares in. The only place these shares on the short end can be coming from is either of their stakes. There just isn't enough anywhere else to make the action and volume of short activity in the traded market make sense.