First of all, I am long and have been holding MTG since it was $2 and never day-traded any of it. I have more than 30K. So I certainly want to see MTG go up.
Now how do you think those shorts were able to cover without being noticed and stock price spiking up? Was it just some week hands got swindled out of their positions? There needed to be a lot of shares sold for those shorties to cover.