GME stock: 13% gains on Oct. 15, 2020 - 400% return in 3 months

The stock has 400% return starting from August 2020. The price was arond $4.00 dollar/ share in August, 2020. 

I should look into how institution buyers or retail buyers pushing up the price. 

I bet on 30 shares on Oct. 9, 2020, but I sold in panic with loss $30.00 dollars. I should start to look into more about GME stock.