Posters on the website Reddit forced a halt to trading of the stock for GameStop. Posters on a reddit forum called wallstreetbets went into a frenzy after GameStop was downgraded stirring up a buying flurry. So additional buyers and short sellers needing the stock forced the stock up.
https://finance.yahoo.com/news/gamestop-tug-war-gives-reddit-164728693.html
That was the pump now when is the dump.
https://finance.yahoo.com/news/gamestop-tug-war-gives-reddit-164728693.html
That was the pump now when is the dump.