Withdrawals from exchanges does not have an effect on the price, it is the exchange when the coin is traded for fiat that does. Investing high capital does not have an automatic effect, it has the possibility of influencing the value but depends on the process of purchase, the amount involved and the influence of the buyer, if known.
but is there some kind regulators like human agents or electronic technology who always do the regulatory price actions especially when trading bitcoin? Or is totally program that way? Only your views please.
No, there are no regulators or tech that regulates the price. Traders have an impact but that is just from the exchange between buyer and seller. Sell and buy pressure is also a factor.
- Jay -