be manipulate, when these coin are well distributed and decentralized?
Some people still believe that news can be used to manipulate the market. Example is if the United States SEC X account that was compromised could have been actually done by someone intentionally. The aim of the person could be to manipulate the crypto market. But aside that, I do not know how bitcoin price can be manipulated because having a marketcap of over $1 trillion is not a joke. Manipulation is almost impossible unlike on low marketcap coins.
Bitcoin's capitalization is over $1 trillion but the daily trading volume recorded by CMC is only $30 billion, which is not a big number when it comes to financial markets. Bitcoin capitalization is 1 trillion but do you remember just with news like the German government selling 2 billion or Mt.gox paying 9 billion? and if we compare with market capitalization then obviously 2 billion or 9 billion is nothing but they still cause some panic in the market.
It can be said that the market is not only manipulated by people with a lot of money but also easily manipulated by news and market makers will take full advantage of that.
In my opinion, every financial market can be manipulated and depending on the market there will be different levels, including the stock market.