I read that they are investigating criminal price manipulations over Bitcoin. Manipulation of prices is really possible ? This happened before ?
What I know about price manipulation is just like the normal pump and dump everyone knows. People who have larger volumes of bitcoins manipulate the price based on how they want it to be. So they sell more bitcoins when they want to drop the price and buy more when they want the price to increase. There may be something else described as price manipulation but with what I just said, it is very likely people can manipulate the price.