and on the stock exchange there are halt regulations and trading is suspended, what's more, everything doesn't follow the same parabola because one of the companies is having a bad day.

Fall for good, someone pulled the plug and erased all the profits from months and hopefully one day they will be left with the same. The senselessness of trading without regulating daily changes like in shares allows you to do something that is normally punishable. When the market falls, there are blocking mechanisms but not on crypto because it is intentional.