 A lot of people what they do is they borrow money that they don't have from their brokers and the stocks go down 10% their accounts are getting liquidated. Something like Tesla that today Tesla is up eight and a half percent. What probably happened is everyone that was margined out in the thousand to 1100 range got liquidated when the stock went down to 900 and 800 and even 780 dollars. So the market moves in cycles of greed and fear.