Major news, good or bad.
1. Such as the reason Bitcoin ETF news that many people reacted negatively to.
2. Supply and demand.
3. Dumpers vs people fighting to buy.
4. Fear of missing out.
5. Security, such as a new vulnerability.
Really the list can just go on and on.
I think there are several meetings of pumps and dumps that can control the estimation of bitcoin and the other thing is there are many fraudsters out there who use bitcoin as their introduction, which is the reason why individuals don't trust bitcoin as a result of this reason.
I think one element that can influence the cost of bitcoin is bad news or FUDs that will be able to offer their bitcoin with the fact that they believe that the cost of bitcoin will go down