From USA, there is a shortage of sellers.In order to keep the stock price down some" company" sells borrowed shares
or not existent (naked shorting) that way they control market forces( supply and demand) when somebody wants to buy shares and they are not on the market shares price go up.
Mar 17 - 259,634 Volume, 177,622 Short Volume, 68.41% of Vol Shorted
Mar 16 - 229,706 Volume, 214,636 Short Volume, 93.44% of Vol Shorted