As GameStop stock increases, another stock decreases. Berkshire Hathaway (BRK-A) stock normally is priced around $600,000 and instantly goes down to $185.

BRK-A is immediately suspended from trading and goes back to over $600,000 that same day. Whoever was able to purchase some of these shares at a discounted price will get the trades reversed. A few other stocks experienced similar price drops.