There are a lot of people who think that the bitcoin market price depends on the large company because they think they usually are the investors but they don't know this is not them those are the whales to holds a lot of bitcoin rather than investors of a large company.
The bitcoin is decentralized but sometimes the large investors can manipulate the market price because those large investment.
Also many investors are scares with the use of the bitcoin because it's more volatile than the stocks.
Basically the technique the use of the buy low and sell high settings that's why they are earning easily without hassle with the use of it. Still it requires a knowledge and skills to grab when is the right time to make an investment.