High level explanation:

1. A bunch of investment firms were "shorting stock" by borrowing at a certain price like 10 shares for $10 at a total of $100, and waiting for the price to drop to $5 dollars, and then completing the transaction at $50 instead of $100, allowing them to gain a profit of $50. When borrowing, you eventually have to buy it.

2. A bunch of autists, pedes, and fags discovered this, and started buying the stock wholesale (not borrowing the stock). Actually buying the stock had the effect of making the price of the stock go up, not down.

3. So instead, of only paying 5 bucks a share to complete the borrow/promissory action and making a profit, the stock went way up. Like to $350 a share. Not only that, but there is only 6.9 million shares of gamestop stock, but it is estimated an additional 7.1 million shares were bought on top. Making the stock even more valuable.

With all those shares being out there, all these firms that have been buying millions of shares expecting a quick payout are now on the hook to pay billions of dollars for this stock. There are investment firms that are going insolvent right now as a result, looking for a bailout as they are fucked. Imagine borrowing a million shares at $10 dollars, expecting it to go to drop to 5, and make 5 million dollars at purchase only to have to pay out $350 million instead?

And since those fighting back pay full price for the stock instead of borrowing, they owe nothing. Any increases in stock price have to be covered by these firms since they are on the hook. Regular fags get paid out, and the billionaires are footing the bill.

It is essentially financial warfare. Expect billionaire suicides.